From d3b716527ee7bc5b8450b8184130e5e8a7201882 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 04:09:13 +0800
Subject: [PATCH 01/32] =?UTF-8?q?"Refactor:=20Entity/DAO=20from=20Item=20?=
 =?UTF-8?q?=E2=86=92=20Task,=20priority=20as=20String"?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../{ItemDaoTest.kt => TaskDaoTest.kt}        | 50 +++++++++----------
 .../example/inventory/data/AppContainer.kt    | 10 ++--
 .../inventory/data/InventoryDatabase.kt       |  4 +-
 ...epository.kt => OfflineTasksRepository.kt} | 12 ++---
 .../inventory/data/{Item.kt => Task.kt}       |  7 ++-
 .../inventory/data/{ItemDao.kt => TaskDao.kt} | 16 +++---
 ...{ItemsRepository.kt => TasksRepository.kt} | 14 +++---
 .../inventory/ui/AppViewModelProvider.kt      |  8 +--
 .../example/inventory/ui/home/HomeScreen.kt   | 30 +++++------
 .../inventory/ui/home/HomeViewModel.kt        | 12 ++---
 .../inventory/ui/item/ItemDetailsScreen.kt    | 12 ++---
 .../inventory/ui/item/ItemDetailsViewModel.kt | 18 +++----
 .../inventory/ui/item/ItemEditViewModel.kt    | 12 ++---
 .../inventory/ui/item/ItemEntryViewModel.kt   | 24 ++++-----
 14 files changed, 114 insertions(+), 115 deletions(-)
 rename app/src/androidTest/java/com/example/inventory/{ItemDaoTest.kt => TaskDaoTest.kt} (70%)
 rename app/src/main/java/com/example/inventory/data/{OfflineItemsRepository.kt => OfflineTasksRepository.kt} (63%)
 rename app/src/main/java/com/example/inventory/data/{Item.kt => Task.kt} (90%)
 rename app/src/main/java/com/example/inventory/data/{ItemDao.kt => TaskDao.kt} (79%)
 rename app/src/main/java/com/example/inventory/data/{ItemsRepository.kt => TasksRepository.kt} (80%)

diff --git a/app/src/androidTest/java/com/example/inventory/ItemDaoTest.kt b/app/src/androidTest/java/com/example/inventory/TaskDaoTest.kt
similarity index 70%
rename from app/src/androidTest/java/com/example/inventory/ItemDaoTest.kt
rename to app/src/androidTest/java/com/example/inventory/TaskDaoTest.kt
index da73558e..15330f4b 100644
--- a/app/src/androidTest/java/com/example/inventory/ItemDaoTest.kt
+++ b/app/src/androidTest/java/com/example/inventory/TaskDaoTest.kt
@@ -21,8 +21,8 @@ import androidx.room.Room
 import androidx.test.core.app.ApplicationProvider
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import com.example.inventory.data.InventoryDatabase
-import com.example.inventory.data.Item
-import com.example.inventory.data.ItemDao
+import com.example.inventory.data.Task
+import com.example.inventory.data.TaskDao
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.runBlocking
 import org.junit.After
@@ -34,12 +34,12 @@ import org.junit.runner.RunWith
 import java.io.IOException
 
 @RunWith(AndroidJUnit4::class)
-class ItemDaoTest {
+class TaskDaoTest {
 
-    private lateinit var itemDao: ItemDao
+    private lateinit var taskDao: TaskDao
     private lateinit var inventoryDatabase: InventoryDatabase
-    private val item1 = Item(1, "Apples", 10.0, 20)
-    private val item2 = Item(2, "Bananas", 15.0, 97)
+    private val task1 = Task(1, "Apples", 10.0, 20)
+    private val task2 = Task(2, "Bananas", 15.0, 97)
 
     @Before
     fun createDb() {
@@ -50,7 +50,7 @@ class ItemDaoTest {
             // Allowing main thread queries, just for testing.
             .allowMainThreadQueries()
             .build()
-        itemDao = inventoryDatabase.itemDao()
+        taskDao = inventoryDatabase.taskDao()
     }
 
     @After
@@ -63,17 +63,17 @@ class ItemDaoTest {
     @Throws(Exception::class)
     fun daoInsert_insertsItemIntoDB() = runBlocking {
         addOneItemToDb()
-        val allItems = itemDao.getAllItems().first()
-        assertEquals(allItems[0], item1)
+        val allItems = taskDao.getAllItems().first()
+        assertEquals(allItems[0], task1)
     }
 
     @Test
     @Throws(Exception::class)
     fun daoGetAllItems_returnsAllItemsFromDB() = runBlocking {
         addTwoItemsToDb()
-        val allItems = itemDao.getAllItems().first()
-        assertEquals(allItems[0], item1)
-        assertEquals(allItems[1], item2)
+        val allItems = taskDao.getAllItems().first()
+        assertEquals(allItems[0], task1)
+        assertEquals(allItems[1], task2)
     }
 
 
@@ -81,17 +81,17 @@ class ItemDaoTest {
     @Throws(Exception::class)
     fun daoGetItem_returnsItemFromDB() = runBlocking {
         addOneItemToDb()
-        val item = itemDao.getItem(1)
-        assertEquals(item.first(), item1)
+        val item = taskDao.getItem(1)
+        assertEquals(item.first(), task1)
     }
 
     @Test
     @Throws(Exception::class)
     fun daoDeleteItems_deletesAllItemsFromDB() = runBlocking {
         addTwoItemsToDb()
-        itemDao.delete(item1)
-        itemDao.delete(item2)
-        val allItems = itemDao.getAllItems().first()
+        taskDao.delete(task1)
+        taskDao.delete(task2)
+        val allItems = taskDao.getAllItems().first()
         assertTrue(allItems.isEmpty())
     }
 
@@ -99,20 +99,20 @@ class ItemDaoTest {
     @Throws(Exception::class)
     fun daoUpdateItems_updatesItemsInDB() = runBlocking {
         addTwoItemsToDb()
-        itemDao.update(Item(1, "Apples", 15.0, 25))
-        itemDao.update(Item(2, "Bananas", 5.0, 50))
+        taskDao.update(Task(1, "Apples", 15.0, 25))
+        taskDao.update(Task(2, "Bananas", 5.0, 50))
 
-        val allItems = itemDao.getAllItems().first()
-        assertEquals(allItems[0], Item(1, "Apples", 15.0, 25))
-        assertEquals(allItems[1], Item(2, "Bananas", 5.0, 50))
+        val allItems = taskDao.getAllItems().first()
+        assertEquals(allItems[0], Task(1, "Apples", 15.0, 25))
+        assertEquals(allItems[1], Task(2, "Bananas", 5.0, 50))
     }
 
     private suspend fun addOneItemToDb() {
-        itemDao.insert(item1)
+        taskDao.insert(task1)
     }
 
     private suspend fun addTwoItemsToDb() {
-        itemDao.insert(item1)
-        itemDao.insert(item2)
+        taskDao.insert(task1)
+        taskDao.insert(task2)
     }
 }
diff --git a/app/src/main/java/com/example/inventory/data/AppContainer.kt b/app/src/main/java/com/example/inventory/data/AppContainer.kt
index fc352312..08a924ef 100644
--- a/app/src/main/java/com/example/inventory/data/AppContainer.kt
+++ b/app/src/main/java/com/example/inventory/data/AppContainer.kt
@@ -22,17 +22,17 @@ import android.content.Context
  * App container for Dependency injection.
  */
 interface AppContainer {
-    val itemsRepository: ItemsRepository
+    val tasksRepository: TasksRepository
 }
 
 /**
- * [AppContainer] implementation that provides instance of [OfflineItemsRepository]
+ * [AppContainer] implementation that provides instance of [OfflineTasksRepository]
  */
 class AppDataContainer(private val context: Context) : AppContainer {
     /**
-     * Implementation for [ItemsRepository]
+     * Implementation for [TasksRepository]
      */
-    override val itemsRepository: ItemsRepository by lazy {
-        OfflineItemsRepository(InventoryDatabase.getDatabase(context).itemDao())
+    override val tasksRepository: TasksRepository by lazy {
+        OfflineTasksRepository(InventoryDatabase.getDatabase(context).taskDao())
     }
 }
diff --git a/app/src/main/java/com/example/inventory/data/InventoryDatabase.kt b/app/src/main/java/com/example/inventory/data/InventoryDatabase.kt
index d9977d9c..d9598176 100644
--- a/app/src/main/java/com/example/inventory/data/InventoryDatabase.kt
+++ b/app/src/main/java/com/example/inventory/data/InventoryDatabase.kt
@@ -24,10 +24,10 @@ import androidx.room.RoomDatabase
 /**
  * Database class with a singleton Instance object.
  */
-@Database(entities = [Item::class], version = 1, exportSchema = false)
+@Database(entities = [Task::class], version = 1, exportSchema = false)
 abstract class InventoryDatabase : RoomDatabase() {
 
-    abstract fun itemDao(): ItemDao
+    abstract fun taskDao(): TaskDao
 
     companion object {
         @Volatile
diff --git a/app/src/main/java/com/example/inventory/data/OfflineItemsRepository.kt b/app/src/main/java/com/example/inventory/data/OfflineTasksRepository.kt
similarity index 63%
rename from app/src/main/java/com/example/inventory/data/OfflineItemsRepository.kt
rename to app/src/main/java/com/example/inventory/data/OfflineTasksRepository.kt
index ed4c03b7..1a4c909e 100644
--- a/app/src/main/java/com/example/inventory/data/OfflineItemsRepository.kt
+++ b/app/src/main/java/com/example/inventory/data/OfflineTasksRepository.kt
@@ -18,14 +18,14 @@ package com.example.inventory.data
 
 import kotlinx.coroutines.flow.Flow
 
-class OfflineItemsRepository(private val itemDao: ItemDao) : ItemsRepository {
-    override fun getAllItemsStream(): Flow<List<Item>> = itemDao.getAllItems()
+class OfflineTasksRepository(private val taskDao: TaskDao) : TasksRepository {
+    override fun getAllItemsStream(): Flow<List<Task>> = taskDao.getAllItems()
 
-    override fun getItemStream(id: Int): Flow<Item?> = itemDao.getItem(id)
+    override fun getTaskStream(id: Int): Flow<Task?> = taskDao.getItem(id)
 
-    override suspend fun insertItem(item: Item) = itemDao.insert(item)
+    override suspend fun insertTask(task: Task) = taskDao.insert(task)
 
-    override suspend fun deleteItem(item: Item) = itemDao.delete(item)
+    override suspend fun deleteTask(task: Task) = taskDao.delete(task)
 
-    override suspend fun updateItem(item: Item) = itemDao.update(item)
+    override suspend fun updateTask(task: Task) = taskDao.update(task)
 }
diff --git a/app/src/main/java/com/example/inventory/data/Item.kt b/app/src/main/java/com/example/inventory/data/Task.kt
similarity index 90%
rename from app/src/main/java/com/example/inventory/data/Item.kt
rename to app/src/main/java/com/example/inventory/data/Task.kt
index edad7cae..cafb9ac4 100644
--- a/app/src/main/java/com/example/inventory/data/Item.kt
+++ b/app/src/main/java/com/example/inventory/data/Task.kt
@@ -22,11 +22,10 @@ import androidx.room.PrimaryKey
 /**
  * Entity data class represents a single row in the database.
  */
-@Entity(tableName = "items")
-data class Item(
+@Entity(tableName = "tasks")
+data class Task(
     @PrimaryKey(autoGenerate = true)
     val id: Int = 0,
     val name: String,
-    val price: Double,
-    val quantity: Int
+    val priority: String
 )
diff --git a/app/src/main/java/com/example/inventory/data/ItemDao.kt b/app/src/main/java/com/example/inventory/data/TaskDao.kt
similarity index 79%
rename from app/src/main/java/com/example/inventory/data/ItemDao.kt
rename to app/src/main/java/com/example/inventory/data/TaskDao.kt
index 22b14c72..e058f569 100644
--- a/app/src/main/java/com/example/inventory/data/ItemDao.kt
+++ b/app/src/main/java/com/example/inventory/data/TaskDao.kt
@@ -28,22 +28,22 @@ import kotlinx.coroutines.flow.Flow
  * Database access object to access the Inventory database
  */
 @Dao
-interface ItemDao {
+interface TaskDao {
 
-    @Query("SELECT * from items ORDER BY name ASC")
-    fun getAllItems(): Flow<List<Item>>
+    @Query("SELECT * from tasks ORDER BY name ASC")
+    fun getAllItems(): Flow<List<Task>>
 
-    @Query("SELECT * from items WHERE id = :id")
-    fun getItem(id: Int): Flow<Item>
+    @Query("SELECT * from tasks WHERE id = :id")
+    fun getItem(id: Int): Flow<Task>
 
     // Specify the conflict strategy as IGNORE, when the user tries to add an
     // existing Item into the database Room ignores the conflict.
     @Insert(onConflict = OnConflictStrategy.IGNORE)
-    suspend fun insert(item: Item)
+    suspend fun insert(task: Task)
 
     @Update
-    suspend fun update(item: Item)
+    suspend fun update(task: Task)
 
     @Delete
-    suspend fun delete(item: Item)
+    suspend fun delete(task: Task)
 }
diff --git a/app/src/main/java/com/example/inventory/data/ItemsRepository.kt b/app/src/main/java/com/example/inventory/data/TasksRepository.kt
similarity index 80%
rename from app/src/main/java/com/example/inventory/data/ItemsRepository.kt
rename to app/src/main/java/com/example/inventory/data/TasksRepository.kt
index 57029541..873cee79 100644
--- a/app/src/main/java/com/example/inventory/data/ItemsRepository.kt
+++ b/app/src/main/java/com/example/inventory/data/TasksRepository.kt
@@ -19,31 +19,31 @@ package com.example.inventory.data
 import kotlinx.coroutines.flow.Flow
 
 /**
- * Repository that provides insert, update, delete, and retrieve of [Item] from a given data source.
+ * Repository that provides insert, update, delete, and retrieve of [Task] from a given data source.
  */
-interface ItemsRepository {
+interface TasksRepository {
     /**
      * Retrieve all the items from the the given data source.
      */
-    fun getAllItemsStream(): Flow<List<Item>>
+    fun getAllTasksStream(): Flow<List<Task>>
 
     /**
      * Retrieve an item from the given data source that matches with the [id].
      */
-    fun getItemStream(id: Int): Flow<Item?>
+    fun getTaskStream(id: Int): Flow<Task?>
 
     /**
      * Insert item in the data source
      */
-    suspend fun insertItem(item: Item)
+    suspend fun insertTask(task: Task)
 
     /**
      * Delete item from the data source
      */
-    suspend fun deleteItem(item: Item)
+    suspend fun deleteTask(task: Task)
 
     /**
      * Update item in the data source
      */
-    suspend fun updateItem(item: Item)
+    suspend fun updateTask(task: Task)
 }
diff --git a/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt b/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt
index be50e541..1a61bd93 100644
--- a/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt
+++ b/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt
@@ -37,25 +37,25 @@ object AppViewModelProvider {
         initializer {
             ItemEditViewModel(
                 this.createSavedStateHandle(),
-                inventoryApplication().container.itemsRepository
+                inventoryApplication().container.tasksRepository
             )
         }
         // Initializer for ItemEntryViewModel
         initializer {
-            ItemEntryViewModel(inventoryApplication().container.itemsRepository)
+            ItemEntryViewModel(inventoryApplication().container.tasksRepository)
         }
 
         // Initializer for ItemDetailsViewModel
         initializer {
             ItemDetailsViewModel(
                 this.createSavedStateHandle(),
-                inventoryApplication().container.itemsRepository
+                inventoryApplication().container.tasksRepository
             )
         }
 
         // Initializer for HomeViewModel
         initializer {
-            HomeViewModel(inventoryApplication().container.itemsRepository)
+            HomeViewModel(inventoryApplication().container.tasksRepository)
         }
     }
 }
diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index 910552ce..8097307d 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -57,7 +57,7 @@ import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.example.inventory.InventoryTopAppBar
 import com.example.inventory.R
-import com.example.inventory.data.Item
+import com.example.inventory.data.Task
 import com.example.inventory.ui.AppViewModelProvider
 import com.example.inventory.ui.item.formatedPrice
 import com.example.inventory.ui.navigation.NavigationDestination
@@ -109,7 +109,7 @@ fun HomeScreen(
         },
     ) { innerPadding ->
         HomeBody(
-            itemList = homeUiState.itemList,
+            taskList = homeUiState.taskList,
             onItemClick = navigateToItemUpdate,
             modifier = modifier.fillMaxSize(),
             contentPadding = innerPadding,
@@ -119,7 +119,7 @@ fun HomeScreen(
 
 @Composable
 private fun HomeBody(
-    itemList: List<Item>,
+    taskList: List<Task>,
     onItemClick: (Int) -> Unit,
     modifier: Modifier = Modifier,
     contentPadding: PaddingValues = PaddingValues(0.dp),
@@ -128,7 +128,7 @@ private fun HomeBody(
         horizontalAlignment = Alignment.CenterHorizontally,
         modifier = modifier,
     ) {
-        if (itemList.isEmpty()) {
+        if (taskList.isEmpty()) {
             Text(
                 text = stringResource(R.string.no_item_description),
                 textAlign = TextAlign.Center,
@@ -137,7 +137,7 @@ private fun HomeBody(
             )
         } else {
             InventoryList(
-                itemList = itemList,
+                taskList = taskList,
                 onItemClick = { onItemClick(it.id) },
                 contentPadding = contentPadding,
                 modifier = Modifier.padding(horizontal = dimensionResource(id = R.dimen.padding_small))
@@ -148,8 +148,8 @@ private fun HomeBody(
 
 @Composable
 private fun InventoryList(
-    itemList: List<Item>,
-    onItemClick: (Item) -> Unit,
+    taskList: List<Task>,
+    onItemClick: (Task) -> Unit,
     contentPadding: PaddingValues,
     modifier: Modifier = Modifier
 ) {
@@ -157,8 +157,8 @@ private fun InventoryList(
         modifier = modifier,
         contentPadding = contentPadding
     ) {
-        items(items = itemList, key = { it.id }) { item ->
-            InventoryItem(item = item,
+        items(items = taskList, key = { it.id }) { item ->
+            InventoryItem(task = item,
                 modifier = Modifier
                     .padding(dimensionResource(id = R.dimen.padding_small))
                     .clickable { onItemClick(item) })
@@ -168,7 +168,7 @@ private fun InventoryList(
 
 @Composable
 private fun InventoryItem(
-    item: Item, modifier: Modifier = Modifier
+    task: Task, modifier: Modifier = Modifier
 ) {
     Card(
         modifier = modifier, elevation = CardDefaults.cardElevation(defaultElevation = 2.dp)
@@ -181,17 +181,17 @@ private fun InventoryItem(
                 modifier = Modifier.fillMaxWidth()
             ) {
                 Text(
-                    text = item.name,
+                    text = task.name,
                     style = MaterialTheme.typography.titleLarge,
                 )
                 Spacer(Modifier.weight(1f))
                 Text(
-                    text = item.formatedPrice(),
+                    text = task.formatedPrice(),
                     style = MaterialTheme.typography.titleMedium
                 )
             }
             Text(
-                text = stringResource(R.string.in_stock, item.quantity),
+                text = stringResource(R.string.in_stock, task.quantity),
                 style = MaterialTheme.typography.titleMedium
             )
         }
@@ -203,7 +203,7 @@ private fun InventoryItem(
 fun HomeBodyPreview() {
     InventoryTheme {
         HomeBody(listOf(
-            Item(1, "Game", 100.0, 20), Item(2, "Pen", 200.0, 30), Item(3, "TV", 300.0, 50)
+            Task(1, "Game", 100.0, 20), Task(2, "Pen", 200.0, 30), Task(3, "TV", 300.0, 50)
         ), onItemClick = {})
     }
 }
@@ -221,7 +221,7 @@ fun HomeBodyEmptyListPreview() {
 fun InventoryItemPreview() {
     InventoryTheme {
         InventoryItem(
-            Item(1, "Game", 100.0, 20),
+            Task(1, "Game", 100.0, 20),
         )
     }
 }
diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt b/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt
index 3ec7087f..44694f72 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt
@@ -18,8 +18,8 @@ package com.example.inventory.ui.home
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.example.inventory.data.Item
-import com.example.inventory.data.ItemsRepository
+import com.example.inventory.data.Task
+import com.example.inventory.data.TasksRepository
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.map
@@ -28,14 +28,14 @@ import kotlinx.coroutines.flow.stateIn
 /**
  * ViewModel to retrieve all items in the Room database.
  */
-class HomeViewModel(itemsRepository: ItemsRepository) : ViewModel() {
+class HomeViewModel(tasksRepository: TasksRepository) : ViewModel() {
 
     /**
-     * Holds home ui state. The list of items are retrieved from [ItemsRepository] and mapped to
+     * Holds home ui state. The list of items are retrieved from [TasksRepository] and mapped to
      * [HomeUiState]
      */
     val homeUiState: StateFlow<HomeUiState> =
-        itemsRepository.getAllItemsStream().map { HomeUiState(it) }
+        tasksRepository.getAllItemsStream().map { HomeUiState(it) }
             .stateIn(
                 scope = viewModelScope,
                 started = SharingStarted.WhileSubscribed(TIMEOUT_MILLIS),
@@ -50,4 +50,4 @@ class HomeViewModel(itemsRepository: ItemsRepository) : ViewModel() {
 /**
  * Ui State for HomeScreen
  */
-data class HomeUiState(val itemList: List<Item> = listOf())
+data class HomeUiState(val taskList: List<Task> = listOf())
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/item/ItemDetailsScreen.kt
index caab4181..65fc96c6 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/item/ItemDetailsScreen.kt
@@ -60,7 +60,7 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.example.inventory.InventoryTopAppBar
 import com.example.inventory.R
-import com.example.inventory.data.Item
+import com.example.inventory.data.Task
 import com.example.inventory.ui.AppViewModelProvider
 import com.example.inventory.ui.navigation.NavigationDestination
 import com.example.inventory.ui.theme.InventoryTheme
@@ -146,7 +146,7 @@ private fun ItemDetailsBody(
     ) {
         var deleteConfirmationRequired by rememberSaveable { mutableStateOf(false) }
         ItemDetails(
-            item = itemDetailsUiState.itemDetails.toItem(), modifier = Modifier.fillMaxWidth()
+            task = itemDetailsUiState.itemDetails.toItem(), modifier = Modifier.fillMaxWidth()
         )
         Button(
             onClick = onSellItem,
@@ -179,7 +179,7 @@ private fun ItemDetailsBody(
 
 @Composable
 fun ItemDetails(
-    item: Item, modifier: Modifier = Modifier
+    task: Task, modifier: Modifier = Modifier
 ) {
     Card(
         modifier = modifier, colors = CardDefaults.cardColors(
@@ -195,7 +195,7 @@ fun ItemDetails(
         ) {
             ItemDetailsRow(
                 labelResID = R.string.item,
-                itemDetail = item.name,
+                itemDetail = task.name,
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
                         id = R.dimen
@@ -205,7 +205,7 @@ fun ItemDetails(
             )
             ItemDetailsRow(
                 labelResID = R.string.quantity_in_stock,
-                itemDetail = item.quantity.toString(),
+                itemDetail = task.quantity.toString(),
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
                         id = R.dimen
@@ -215,7 +215,7 @@ fun ItemDetails(
             )
             ItemDetailsRow(
                 labelResID = R.string.price,
-                itemDetail = item.formatedPrice(),
+                itemDetail = task.formatedPrice(),
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
                         id = R.dimen
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemDetailsViewModel.kt b/app/src/main/java/com/example/inventory/ui/item/ItemDetailsViewModel.kt
index c37b0f58..0c290ec4 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemDetailsViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/item/ItemDetailsViewModel.kt
@@ -19,7 +19,7 @@ package com.example.inventory.ui.item
 import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.example.inventory.data.ItemsRepository
+import com.example.inventory.data.TasksRepository
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.filterNotNull
@@ -28,21 +28,21 @@ import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
 
 /**
- * ViewModel to retrieve, update and delete an item from the [ItemsRepository]'s data source.
+ * ViewModel to retrieve, update and delete an item from the [TasksRepository]'s data source.
  */
 class ItemDetailsViewModel(
     savedStateHandle: SavedStateHandle,
-    private val itemsRepository: ItemsRepository,
+    private val tasksRepository: TasksRepository,
 ) : ViewModel() {
 
     private val itemId: Int = checkNotNull(savedStateHandle[ItemDetailsDestination.itemIdArg])
 
     /**
-     * Holds the item details ui state. The data is retrieved from [ItemsRepository] and mapped to
+     * Holds the item details ui state. The data is retrieved from [TasksRepository] and mapped to
      * the UI state.
      */
     val uiState: StateFlow<ItemDetailsUiState> =
-        itemsRepository.getItemStream(itemId)
+        tasksRepository.getTaskStream(itemId)
             .filterNotNull()
             .map {
                 ItemDetailsUiState(outOfStock = it.quantity <= 0, itemDetails = it.toItemDetails())
@@ -53,22 +53,22 @@ class ItemDetailsViewModel(
             )
 
     /**
-     * Reduces the item quantity by one and update the [ItemsRepository]'s data source.
+     * Reduces the item quantity by one and update the [TasksRepository]'s data source.
      */
     fun reduceQuantityByOne() {
         viewModelScope.launch {
             val currentItem = uiState.value.itemDetails.toItem()
             if (currentItem.quantity > 0) {
-                itemsRepository.updateItem(currentItem.copy(quantity = currentItem.quantity - 1))
+                tasksRepository.updateTask(currentItem.copy(quantity = currentItem.quantity - 1))
             }
         }
     }
 
     /**
-     * Deletes the item from the [ItemsRepository]'s data source.
+     * Deletes the item from the [TasksRepository]'s data source.
      */
     suspend fun deleteItem() {
-        itemsRepository.deleteItem(uiState.value.itemDetails.toItem())
+        tasksRepository.deleteTask(uiState.value.itemDetails.toItem())
     }
 
     companion object {
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemEditViewModel.kt b/app/src/main/java/com/example/inventory/ui/item/ItemEditViewModel.kt
index bdd64918..244bc2a7 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemEditViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/item/ItemEditViewModel.kt
@@ -22,17 +22,17 @@ import androidx.compose.runtime.setValue
 import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.example.inventory.data.ItemsRepository
+import com.example.inventory.data.TasksRepository
 import kotlinx.coroutines.flow.filterNotNull
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 
 /**
- * ViewModel to retrieve and update an item from the [ItemsRepository]'s data source.
+ * ViewModel to retrieve and update an item from the [TasksRepository]'s data source.
  */
 class ItemEditViewModel(
     savedStateHandle: SavedStateHandle,
-    private val itemsRepository: ItemsRepository
+    private val tasksRepository: TasksRepository
 ) : ViewModel() {
 
     /**
@@ -45,7 +45,7 @@ class ItemEditViewModel(
 
     init {
         viewModelScope.launch {
-            itemUiState = itemsRepository.getItemStream(itemId)
+            itemUiState = tasksRepository.getTaskStream(itemId)
                 .filterNotNull()
                 .first()
                 .toItemUiState(true)
@@ -53,11 +53,11 @@ class ItemEditViewModel(
     }
 
     /**
-     * Update the item in the [ItemsRepository]'s data source
+     * Update the item in the [TasksRepository]'s data source
      */
     suspend fun updateItem() {
         if (validateInput(itemUiState.itemDetails)) {
-            itemsRepository.updateItem(itemUiState.itemDetails.toItem())
+            tasksRepository.updateTask(itemUiState.itemDetails.toItem())
         }
     }
 
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemEntryViewModel.kt b/app/src/main/java/com/example/inventory/ui/item/ItemEntryViewModel.kt
index 9729464c..7056e8f5 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemEntryViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/item/ItemEntryViewModel.kt
@@ -20,14 +20,14 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
 import androidx.lifecycle.ViewModel
-import com.example.inventory.data.Item
-import com.example.inventory.data.ItemsRepository
+import com.example.inventory.data.Task
+import com.example.inventory.data.TasksRepository
 import java.text.NumberFormat
 
 /**
  * ViewModel to validate and insert items in the Room database.
  */
-class ItemEntryViewModel(private val itemsRepository: ItemsRepository) : ViewModel() {
+class ItemEntryViewModel(private val tasksRepository: TasksRepository) : ViewModel() {
 
     /**
      * Holds current item ui state
@@ -45,11 +45,11 @@ class ItemEntryViewModel(private val itemsRepository: ItemsRepository) : ViewMod
     }
 
     /**
-     * Inserts an [Item] in the Room database
+     * Inserts an [Task] in the Room database
      */
     suspend fun saveItem() {
         if (validateInput()) {
-            itemsRepository.insertItem(itemUiState.itemDetails.toItem())
+            tasksRepository.insertTask(itemUiState.itemDetails.toItem())
         }
     }
 
@@ -76,33 +76,33 @@ data class ItemDetails(
 )
 
 /**
- * Extension function to convert [ItemUiState] to [Item]. If the value of [ItemDetails.price] is
+ * Extension function to convert [ItemUiState] to [Task]. If the value of [ItemDetails.price] is
  * not a valid [Double], then the price will be set to 0.0. Similarly if the value of
  * [ItemUiState] is not a valid [Int], then the quantity will be set to 0
  */
-fun ItemDetails.toItem(): Item = Item(
+fun ItemDetails.toItem(): Task = Task(
     id = id,
     name = name,
     price = price.toDoubleOrNull() ?: 0.0,
     quantity = quantity.toIntOrNull() ?: 0
 )
 
-fun Item.formatedPrice(): String {
+fun Task.formatedPrice(): String {
     return NumberFormat.getCurrencyInstance().format(price)
 }
 
 /**
- * Extension function to convert [Item] to [ItemUiState]
+ * Extension function to convert [Task] to [ItemUiState]
  */
-fun Item.toItemUiState(isEntryValid: Boolean = false): ItemUiState = ItemUiState(
+fun Task.toItemUiState(isEntryValid: Boolean = false): ItemUiState = ItemUiState(
     itemDetails = this.toItemDetails(),
     isEntryValid = isEntryValid
 )
 
 /**
- * Extension function to convert [Item] to [ItemDetails]
+ * Extension function to convert [Task] to [ItemDetails]
  */
-fun Item.toItemDetails(): ItemDetails = ItemDetails(
+fun Task.toItemDetails(): ItemDetails = ItemDetails(
     id = id,
     name = name,
     price = price.toString(),

From 39f8ef6a559010036133d3725bdbc510d0829bd2 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 05:07:43 +0800
Subject: [PATCH 02/32] Fix override fun getAllTasksStream()

---
 .../java/com/example/inventory/data/OfflineTasksRepository.kt   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/com/example/inventory/data/OfflineTasksRepository.kt b/app/src/main/java/com/example/inventory/data/OfflineTasksRepository.kt
index 1a4c909e..ac76fdf1 100644
--- a/app/src/main/java/com/example/inventory/data/OfflineTasksRepository.kt
+++ b/app/src/main/java/com/example/inventory/data/OfflineTasksRepository.kt
@@ -19,7 +19,7 @@ package com.example.inventory.data
 import kotlinx.coroutines.flow.Flow
 
 class OfflineTasksRepository(private val taskDao: TaskDao) : TasksRepository {
-    override fun getAllItemsStream(): Flow<List<Task>> = taskDao.getAllItems()
+    override fun getAllTasksStream(): Flow<List<Task>> = taskDao.getAllItems()
 
     override fun getTaskStream(id: Int): Flow<Task?> = taskDao.getItem(id)
 

From 5661c0d8323a71c25f67b74f1604feed18662b1e Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 05:12:18 +0800
Subject: [PATCH 03/32] app_name -> To Do List

---
 app/src/main/res/values/strings.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 66262ff3..63d2d985 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -14,7 +14,7 @@
   ~ limitations under the License.
   -->
 <resources>
-    <string name="app_name">Inventory</string>
+    <string name="app_name">To Do List</string>
     <string name="attention">Attention</string>
     <string name="back_button">Back</string>
     <string name="delete">Delete</string>

From 4513626e802da92734d01578378886a75a6a3ce2 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 05:15:23 +0800
Subject: [PATCH 04/32] item->task_entry_title -> Add Task

---
 app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt   | 2 +-
 .../main/java/com/example/inventory/ui/item/ItemEntryScreen.kt  | 2 +-
 app/src/main/res/values/strings.xml                             | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index 8097307d..156fae11 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -103,7 +103,7 @@ fun HomeScreen(
             ) {
                 Icon(
                     imageVector = Icons.Default.Add,
-                    contentDescription = stringResource(R.string.item_entry_title)
+                    contentDescription = stringResource(R.string.task_entry_title)
                 )
             }
         },
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemEntryScreen.kt b/app/src/main/java/com/example/inventory/ui/item/ItemEntryScreen.kt
index e542de8c..36918c81 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemEntryScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/item/ItemEntryScreen.kt
@@ -52,7 +52,7 @@ import java.util.Locale
 
 object ItemEntryDestination : NavigationDestination {
     override val route = "item_entry"
-    override val titleRes = R.string.item_entry_title
+    override val titleRes = R.string.task_entry_title
 }
 
 @OptIn(ExperimentalMaterial3Api::class)
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 63d2d985..eccd65de 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -23,7 +23,7 @@
     <string name="edit_item_title">Edit Item</string>
     <string name="item">Item</string>
     <string name="item_detail_title">Item Details</string>
-    <string name="item_entry_title">Add Item</string>
+    <string name="task_entry_title">Add Task</string>
     <string name="item_name_req">Item Name*</string>
     <string name="item_price_req">Item Price*</string>
     <string name="no">No</string>

From 5b710054c86019077d0b249b48983ba7676ae926 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 05:16:51 +0800
Subject: [PATCH 05/32] item-> no_task_description -> Oops!\nNo tasks in the
 lists.\nTap + to add

---
 app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt | 2 +-
 app/src/main/res/values/strings.xml                           | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index 156fae11..7e838994 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -130,7 +130,7 @@ private fun HomeBody(
     ) {
         if (taskList.isEmpty()) {
             Text(
-                text = stringResource(R.string.no_item_description),
+                text = stringResource(R.string.no_task_description),
                 textAlign = TextAlign.Center,
                 style = MaterialTheme.typography.titleLarge,
                 modifier = Modifier.padding(contentPadding),
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index eccd65de..5b0306ef 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -19,7 +19,7 @@
     <string name="back_button">Back</string>
     <string name="delete">Delete</string>
     <string name="delete_question">Are you sure you want to delete?</string>
-    <string name="no_item_description">Oops!\nNo items in the inventory.\nTap + to add.</string>
+    <string name="no_task_description">Oops!\nNo tasks in the lists.\nTap + to add.</string>
     <string name="edit_item_title">Edit Item</string>
     <string name="item">Item</string>
     <string name="item_detail_title">Item Details</string>

From 26f4b6f2a315b6f9878c2940fd8b3c2fd7f44c29 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 05:26:27 +0800
Subject: [PATCH 06/32] HomeScreen.kt: onItemClick change to onTaskClick task.q
 to task.priority Preview data edited

HomeViewModel.kt:
getAllTasksStream()
---
 .../com/example/inventory/ui/home/HomeScreen.kt  | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index 7e838994..c9284e3d 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -110,7 +110,7 @@ fun HomeScreen(
     ) { innerPadding ->
         HomeBody(
             taskList = homeUiState.taskList,
-            onItemClick = navigateToItemUpdate,
+            onTaskClick = navigateToItemUpdate,
             modifier = modifier.fillMaxSize(),
             contentPadding = innerPadding,
         )
@@ -120,7 +120,7 @@ fun HomeScreen(
 @Composable
 private fun HomeBody(
     taskList: List<Task>,
-    onItemClick: (Int) -> Unit,
+    onTaskClick: (Int) -> Unit,
     modifier: Modifier = Modifier,
     contentPadding: PaddingValues = PaddingValues(0.dp),
 ) {
@@ -138,7 +138,7 @@ private fun HomeBody(
         } else {
             InventoryList(
                 taskList = taskList,
-                onItemClick = { onItemClick(it.id) },
+                onItemClick = { onTaskClick(it.id) },
                 contentPadding = contentPadding,
                 modifier = Modifier.padding(horizontal = dimensionResource(id = R.dimen.padding_small))
             )
@@ -191,7 +191,7 @@ private fun InventoryItem(
                 )
             }
             Text(
-                text = stringResource(R.string.in_stock, task.quantity),
+                text = stringResource(R.string.in_stock, task.priority),
                 style = MaterialTheme.typography.titleMedium
             )
         }
@@ -203,8 +203,8 @@ private fun InventoryItem(
 fun HomeBodyPreview() {
     InventoryTheme {
         HomeBody(listOf(
-            Task(1, "Game", 100.0, 20), Task(2, "Pen", 200.0, 30), Task(3, "TV", 300.0, 50)
-        ), onItemClick = {})
+            Task(1, "Task1", "High"), Task(2, "Task2", "High"), Task(3, "Task3", "Low")
+        ), onTaskClick = {})
     }
 }
 
@@ -212,7 +212,7 @@ fun HomeBodyPreview() {
 @Composable
 fun HomeBodyEmptyListPreview() {
     InventoryTheme {
-        HomeBody(listOf(), onItemClick = {})
+        HomeBody(listOf(), onTaskClick = {})
     }
 }
 
@@ -221,7 +221,7 @@ fun HomeBodyEmptyListPreview() {
 fun InventoryItemPreview() {
     InventoryTheme {
         InventoryItem(
-            Task(1, "Game", 100.0, 20),
+            Task(1, "Task1", "High"),
         )
     }
 }

From 855389a1fc6e61525039dbd3bae7667dfb29e8d7 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 05:26:32 +0800
Subject: [PATCH 07/32] HomeScreen.kt: onItemClick change to onTaskClick task.q
 to task.priority Preview data edited

HomeViewModel.kt:
getAllTasksStream()
---
 .../main/java/com/example/inventory/ui/home/HomeViewModel.kt    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt b/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt
index 44694f72..9ed7f17a 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt
@@ -35,7 +35,7 @@ class HomeViewModel(tasksRepository: TasksRepository) : ViewModel() {
      * [HomeUiState]
      */
     val homeUiState: StateFlow<HomeUiState> =
-        tasksRepository.getAllItemsStream().map { HomeUiState(it) }
+        tasksRepository.getAllTasksStream().map { HomeUiState(it) }
             .stateIn(
                 scope = viewModelScope,
                 started = SharingStarted.WhileSubscribed(TIMEOUT_MILLIS),

From 9549b7de2acff7c9635a36ade84557f86060bfcd Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 05:34:41 +0800
Subject: [PATCH 08/32] strings.xml change all item to task.

Files under Item all change to task
---
 .../inventory/ui/AppViewModelProvider.kt       |  8 ++++----
 .../example/inventory/ui/home/HomeScreen.kt    |  2 +-
 .../ui/navigation/InventoryNavGraph.kt         | 18 +++++++++---------
 .../TaskDetailsScreen.kt}                      | 16 ++++++++--------
 .../TaskDetailsViewModel.kt}                   |  4 ++--
 .../TaskEditScreen.kt}                         |  6 +++---
 .../TaskEditViewModel.kt}                      |  4 ++--
 .../TaskEntryScreen.kt}                        |  6 +++---
 .../TaskEntryViewModel.kt}                     |  2 +-
 app/src/main/res/values/strings.xml            | 10 +++++-----
 10 files changed, 38 insertions(+), 38 deletions(-)
 rename app/src/main/java/com/example/inventory/ui/{item/ItemDetailsScreen.kt => task/TaskDetailsScreen.kt} (96%)
 rename app/src/main/java/com/example/inventory/ui/{item/ItemDetailsViewModel.kt => task/TaskDetailsViewModel.kt} (95%)
 rename app/src/main/java/com/example/inventory/ui/{item/ItemEditScreen.kt => task/TaskEditScreen.kt} (95%)
 rename app/src/main/java/com/example/inventory/ui/{item/ItemEditViewModel.kt => task/TaskEditViewModel.kt} (97%)
 rename app/src/main/java/com/example/inventory/ui/{item/ItemEntryScreen.kt => task/TaskEntryScreen.kt} (97%)
 rename app/src/main/java/com/example/inventory/ui/{item/ItemEntryViewModel.kt => task/TaskEntryViewModel.kt} (98%)

diff --git a/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt b/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt
index 1a61bd93..2db9830d 100644
--- a/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt
+++ b/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt
@@ -24,9 +24,9 @@ import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
 import com.example.inventory.InventoryApplication
 import com.example.inventory.ui.home.HomeViewModel
-import com.example.inventory.ui.item.ItemDetailsViewModel
-import com.example.inventory.ui.item.ItemEditViewModel
-import com.example.inventory.ui.item.ItemEntryViewModel
+import com.example.inventory.ui.task.ItemDetailsViewModel
+import com.example.inventory.ui.task.TaskEditViewModel
+import com.example.inventory.ui.task.ItemEntryViewModel
 
 /**
  * Provides Factory to create instance of ViewModel for the entire Inventory app
@@ -35,7 +35,7 @@ object AppViewModelProvider {
     val Factory = viewModelFactory {
         // Initializer for ItemEditViewModel
         initializer {
-            ItemEditViewModel(
+            TaskEditViewModel(
                 this.createSavedStateHandle(),
                 inventoryApplication().container.tasksRepository
             )
diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index c9284e3d..b7f0bf94 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -59,7 +59,7 @@ import com.example.inventory.InventoryTopAppBar
 import com.example.inventory.R
 import com.example.inventory.data.Task
 import com.example.inventory.ui.AppViewModelProvider
-import com.example.inventory.ui.item.formatedPrice
+import com.example.inventory.ui.task.formatedPrice
 import com.example.inventory.ui.navigation.NavigationDestination
 import com.example.inventory.ui.theme.InventoryTheme
 
diff --git a/app/src/main/java/com/example/inventory/ui/navigation/InventoryNavGraph.kt b/app/src/main/java/com/example/inventory/ui/navigation/InventoryNavGraph.kt
index 1f56c32d..eb1e2e13 100644
--- a/app/src/main/java/com/example/inventory/ui/navigation/InventoryNavGraph.kt
+++ b/app/src/main/java/com/example/inventory/ui/navigation/InventoryNavGraph.kt
@@ -25,12 +25,12 @@ import androidx.navigation.compose.composable
 import androidx.navigation.navArgument
 import com.example.inventory.ui.home.HomeDestination
 import com.example.inventory.ui.home.HomeScreen
-import com.example.inventory.ui.item.ItemDetailsDestination
-import com.example.inventory.ui.item.ItemDetailsScreen
-import com.example.inventory.ui.item.ItemEditDestination
-import com.example.inventory.ui.item.ItemEditScreen
-import com.example.inventory.ui.item.ItemEntryDestination
-import com.example.inventory.ui.item.ItemEntryScreen
+import com.example.inventory.ui.task.TaskDetailsDestination
+import com.example.inventory.ui.task.ItemDetailsScreen
+import com.example.inventory.ui.task.ItemEditDestination
+import com.example.inventory.ui.task.ItemEditScreen
+import com.example.inventory.ui.task.ItemEntryDestination
+import com.example.inventory.ui.task.ItemEntryScreen
 
 /**
  * Provides Navigation graph for the application.
@@ -49,7 +49,7 @@ fun InventoryNavHost(
             HomeScreen(
                 navigateToItemEntry = { navController.navigate(ItemEntryDestination.route) },
                 navigateToItemUpdate = {
-                    navController.navigate("${ItemDetailsDestination.route}/${it}")
+                    navController.navigate("${TaskDetailsDestination.route}/${it}")
                 }
             )
         }
@@ -60,8 +60,8 @@ fun InventoryNavHost(
             )
         }
         composable(
-            route = ItemDetailsDestination.routeWithArgs,
-            arguments = listOf(navArgument(ItemDetailsDestination.itemIdArg) {
+            route = TaskDetailsDestination.routeWithArgs,
+            arguments = listOf(navArgument(TaskDetailsDestination.taskIdArg) {
                 type = NavType.IntType
             })
         ) {
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
similarity index 96%
rename from app/src/main/java/com/example/inventory/ui/item/ItemDetailsScreen.kt
rename to app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 65fc96c6..ed1e5aef 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.example.inventory.ui.item
+package com.example.inventory.ui.task
 
 import androidx.annotation.StringRes
 import androidx.compose.foundation.layout.Arrangement
@@ -66,11 +66,11 @@ import com.example.inventory.ui.navigation.NavigationDestination
 import com.example.inventory.ui.theme.InventoryTheme
 import kotlinx.coroutines.launch
 
-object ItemDetailsDestination : NavigationDestination {
+object TaskDetailsDestination : NavigationDestination {
     override val route = "item_details"
-    override val titleRes = R.string.item_detail_title
-    const val itemIdArg = "itemId"
-    val routeWithArgs = "$route/{$itemIdArg}"
+    override val titleRes = R.string.task_detail_title
+    const val taskIdArg = "itemId"
+    val routeWithArgs = "$route/{$taskIdArg}"
 }
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -86,7 +86,7 @@ fun ItemDetailsScreen(
     Scaffold(
         topBar = {
             InventoryTopAppBar(
-                title = stringResource(ItemDetailsDestination.titleRes),
+                title = stringResource(TaskDetailsDestination.titleRes),
                 canNavigateBack = true,
                 navigateUp = navigateBack
             )
@@ -103,7 +103,7 @@ fun ItemDetailsScreen(
             ) {
                 Icon(
                     imageVector = Icons.Default.Edit,
-                    contentDescription = stringResource(R.string.edit_item_title),
+                    contentDescription = stringResource(R.string.edit_task_title),
                 )
             }
         },
@@ -194,7 +194,7 @@ fun ItemDetails(
             verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
         ) {
             ItemDetailsRow(
-                labelResID = R.string.item,
+                labelResID = R.string.task,
                 itemDetail = task.name,
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemDetailsViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
similarity index 95%
rename from app/src/main/java/com/example/inventory/ui/item/ItemDetailsViewModel.kt
rename to app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
index 0c290ec4..74c1056a 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemDetailsViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.example.inventory.ui.item
+package com.example.inventory.ui.task
 
 import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.ViewModel
@@ -35,7 +35,7 @@ class ItemDetailsViewModel(
     private val tasksRepository: TasksRepository,
 ) : ViewModel() {
 
-    private val itemId: Int = checkNotNull(savedStateHandle[ItemDetailsDestination.itemIdArg])
+    private val itemId: Int = checkNotNull(savedStateHandle[TaskDetailsDestination.taskIdArg])
 
     /**
      * Holds the item details ui state. The data is retrieved from [TasksRepository] and mapped to
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemEditScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEditScreen.kt
similarity index 95%
rename from app/src/main/java/com/example/inventory/ui/item/ItemEditScreen.kt
rename to app/src/main/java/com/example/inventory/ui/task/TaskEditScreen.kt
index e290a3c2..2da2d9a8 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemEditScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEditScreen.kt
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.example.inventory.ui.item
+package com.example.inventory.ui.task
 
 import androidx.compose.foundation.layout.calculateEndPadding
 import androidx.compose.foundation.layout.calculateStartPadding
@@ -39,7 +39,7 @@ import kotlinx.coroutines.launch
 
 object ItemEditDestination : NavigationDestination {
     override val route = "item_edit"
-    override val titleRes = R.string.edit_item_title
+    override val titleRes = R.string.edit_task_title
     const val itemIdArg = "itemId"
     val routeWithArgs = "$route/{$itemIdArg}"
 }
@@ -50,7 +50,7 @@ fun ItemEditScreen(
     navigateBack: () -> Unit,
     onNavigateUp: () -> Unit,
     modifier: Modifier = Modifier,
-    viewModel: ItemEditViewModel = viewModel(factory = AppViewModelProvider.Factory)
+    viewModel: TaskEditViewModel = viewModel(factory = AppViewModelProvider.Factory)
 ) {
     val coroutineScope = rememberCoroutineScope()
     Scaffold(
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemEditViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
similarity index 97%
rename from app/src/main/java/com/example/inventory/ui/item/ItemEditViewModel.kt
rename to app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
index 244bc2a7..bfaa099a 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemEditViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.example.inventory.ui.item
+package com.example.inventory.ui.task
 
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
@@ -30,7 +30,7 @@ import kotlinx.coroutines.launch
 /**
  * ViewModel to retrieve and update an item from the [TasksRepository]'s data source.
  */
-class ItemEditViewModel(
+class TaskEditViewModel(
     savedStateHandle: SavedStateHandle,
     private val tasksRepository: TasksRepository
 ) : ViewModel() {
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemEntryScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
similarity index 97%
rename from app/src/main/java/com/example/inventory/ui/item/ItemEntryScreen.kt
rename to app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
index 36918c81..59d862f6 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemEntryScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.example.inventory.ui.item
+package com.example.inventory.ui.task
 
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
@@ -139,7 +139,7 @@ fun ItemInputForm(
         OutlinedTextField(
             value = itemDetails.name,
             onValueChange = { onValueChange(itemDetails.copy(name = it)) },
-            label = { Text(stringResource(R.string.item_name_req)) },
+            label = { Text(stringResource(R.string.task_name_req)) },
             colors = OutlinedTextFieldDefaults.colors(
                 focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
                 unfocusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
@@ -153,7 +153,7 @@ fun ItemInputForm(
             value = itemDetails.price,
             onValueChange = { onValueChange(itemDetails.copy(price = it)) },
             keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Decimal),
-            label = { Text(stringResource(R.string.item_price_req)) },
+            label = { Text(stringResource(R.string.task_price_req)) },
             colors = OutlinedTextFieldDefaults.colors(
                 focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
                 unfocusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
diff --git a/app/src/main/java/com/example/inventory/ui/item/ItemEntryViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt
similarity index 98%
rename from app/src/main/java/com/example/inventory/ui/item/ItemEntryViewModel.kt
rename to app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt
index 7056e8f5..4fdc9fb3 100644
--- a/app/src/main/java/com/example/inventory/ui/item/ItemEntryViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.example.inventory.ui.item
+package com.example.inventory.ui.task
 
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 5b0306ef..4024d166 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -20,12 +20,12 @@
     <string name="delete">Delete</string>
     <string name="delete_question">Are you sure you want to delete?</string>
     <string name="no_task_description">Oops!\nNo tasks in the lists.\nTap + to add.</string>
-    <string name="edit_item_title">Edit Item</string>
-    <string name="item">Item</string>
-    <string name="item_detail_title">Item Details</string>
+    <string name="edit_task_title">Edit Task</string>
+    <string name="task">Task</string>
+    <string name="task_detail_title">Task Details</string>
     <string name="task_entry_title">Add Task</string>
-    <string name="item_name_req">Item Name*</string>
-    <string name="item_price_req">Item Price*</string>
+    <string name="task_name_req">Task Name*</string>
+    <string name="task_price_req">Task Price*</string>
     <string name="no">No</string>
     <string name="price">Price</string>
     <string name="quantity_in_stock">Quantity in stock</string>

From 6c9599791020f34fdbec5693f684a7eb4a68b309 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 05:56:34 +0800
Subject: [PATCH 09/32] more item to task refactor

---
 .../inventory/ui/AppViewModelProvider.kt      |  4 +-
 .../ui/navigation/InventoryNavGraph.kt        |  6 +-
 .../inventory/ui/task/TaskDetailsScreen.kt    | 64 +++++++++----------
 .../inventory/ui/task/TaskDetailsViewModel.kt | 18 +++---
 .../inventory/ui/task/TaskEditViewModel.kt    | 10 +--
 .../inventory/ui/task/TaskEntryScreen.kt      | 22 +++----
 .../inventory/ui/task/TaskEntryViewModel.kt   | 22 +++----
 7 files changed, 73 insertions(+), 73 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt b/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt
index 2db9830d..bc1c8157 100644
--- a/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt
+++ b/app/src/main/java/com/example/inventory/ui/AppViewModelProvider.kt
@@ -24,7 +24,7 @@ import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
 import com.example.inventory.InventoryApplication
 import com.example.inventory.ui.home.HomeViewModel
-import com.example.inventory.ui.task.ItemDetailsViewModel
+import com.example.inventory.ui.task.TaskDetailsViewModel
 import com.example.inventory.ui.task.TaskEditViewModel
 import com.example.inventory.ui.task.ItemEntryViewModel
 
@@ -47,7 +47,7 @@ object AppViewModelProvider {
 
         // Initializer for ItemDetailsViewModel
         initializer {
-            ItemDetailsViewModel(
+            TaskDetailsViewModel(
                 this.createSavedStateHandle(),
                 inventoryApplication().container.tasksRepository
             )
diff --git a/app/src/main/java/com/example/inventory/ui/navigation/InventoryNavGraph.kt b/app/src/main/java/com/example/inventory/ui/navigation/InventoryNavGraph.kt
index eb1e2e13..a499264d 100644
--- a/app/src/main/java/com/example/inventory/ui/navigation/InventoryNavGraph.kt
+++ b/app/src/main/java/com/example/inventory/ui/navigation/InventoryNavGraph.kt
@@ -26,7 +26,7 @@ import androidx.navigation.navArgument
 import com.example.inventory.ui.home.HomeDestination
 import com.example.inventory.ui.home.HomeScreen
 import com.example.inventory.ui.task.TaskDetailsDestination
-import com.example.inventory.ui.task.ItemDetailsScreen
+import com.example.inventory.ui.task.TaskDetailsScreen
 import com.example.inventory.ui.task.ItemEditDestination
 import com.example.inventory.ui.task.ItemEditScreen
 import com.example.inventory.ui.task.ItemEntryDestination
@@ -65,8 +65,8 @@ fun InventoryNavHost(
                 type = NavType.IntType
             })
         ) {
-            ItemDetailsScreen(
-                navigateToEditItem = { navController.navigate("${ItemEditDestination.route}/$it") },
+            TaskDetailsScreen(
+                navigateToEditTask = { navController.navigate("${ItemEditDestination.route}/$it") },
                 navigateBack = { navController.navigateUp() }
             )
         }
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index ed1e5aef..984801bf 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -67,19 +67,19 @@ import com.example.inventory.ui.theme.InventoryTheme
 import kotlinx.coroutines.launch
 
 object TaskDetailsDestination : NavigationDestination {
-    override val route = "item_details"
+    override val route = "task_details"
     override val titleRes = R.string.task_detail_title
-    const val taskIdArg = "itemId"
+    const val taskIdArg = "taskId"
     val routeWithArgs = "$route/{$taskIdArg}"
 }
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun ItemDetailsScreen(
-    navigateToEditItem: (Int) -> Unit,
+fun TaskDetailsScreen(
+    navigateToEditTask: (Int) -> Unit,
     navigateBack: () -> Unit,
     modifier: Modifier = Modifier,
-    viewModel: ItemDetailsViewModel = viewModel(factory = AppViewModelProvider.Factory)
+    viewModel: TaskDetailsViewModel = viewModel(factory = AppViewModelProvider.Factory)
 ) {
     val uiState = viewModel.uiState.collectAsState()
     val coroutineScope = rememberCoroutineScope()
@@ -93,7 +93,7 @@ fun ItemDetailsScreen(
         },
         floatingActionButton = {
             FloatingActionButton(
-                onClick = { navigateToEditItem(uiState.value.itemDetails.id) },
+                onClick = { navigateToEditTask(uiState.value.taskDetails.id) },
                 shape = MaterialTheme.shapes.medium,
                 modifier = Modifier
                     .padding(
@@ -109,16 +109,16 @@ fun ItemDetailsScreen(
         },
         modifier = modifier,
     ) { innerPadding ->
-        ItemDetailsBody(
-            itemDetailsUiState = uiState.value,
-            onSellItem = { viewModel.reduceQuantityByOne() },
+        TaskDetailsBody(
+            taskDetailsUiState = uiState.value,
+            onSellTask = { viewModel.reduceQuantityByOne() },
             onDelete = {
                 // Note: If the user rotates the screen very fast, the operation may get cancelled
-                // and the item may not be deleted from the Database. This is because when config
+                // and the task may not be deleted from the Database. This is because when config
                 // change occurs, the Activity will be recreated and the rememberCoroutineScope will
                 // be cancelled - since the scope is bound to composition.
                 coroutineScope.launch {
-                    viewModel.deleteItem()
+                    viewModel.deleteTask()
                     navigateBack()
                 }
             },
@@ -134,9 +134,9 @@ fun ItemDetailsScreen(
 }
 
 @Composable
-private fun ItemDetailsBody(
-    itemDetailsUiState: ItemDetailsUiState,
-    onSellItem: () -> Unit,
+private fun TaskDetailsBody(
+    taskDetailsUiState: TaskDetailsUiState,
+    onSellTask: () -> Unit,
     onDelete: () -> Unit,
     modifier: Modifier = Modifier
 ) {
@@ -145,14 +145,14 @@ private fun ItemDetailsBody(
         verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
     ) {
         var deleteConfirmationRequired by rememberSaveable { mutableStateOf(false) }
-        ItemDetails(
-            task = itemDetailsUiState.itemDetails.toItem(), modifier = Modifier.fillMaxWidth()
+        TaskDetails(
+            task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
         )
         Button(
-            onClick = onSellItem,
+            onClick = onSellTask,
             modifier = Modifier.fillMaxWidth(),
             shape = MaterialTheme.shapes.small,
-            enabled = !itemDetailsUiState.outOfStock
+            enabled = !taskDetailsUiState.outOfStock
         ) {
             Text(stringResource(R.string.sell))
         }
@@ -178,7 +178,7 @@ private fun ItemDetailsBody(
 
 
 @Composable
-fun ItemDetails(
+fun TaskDetails(
     task: Task, modifier: Modifier = Modifier
 ) {
     Card(
@@ -193,9 +193,9 @@ fun ItemDetails(
                 .padding(dimensionResource(id = R.dimen.padding_medium)),
             verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
         ) {
-            ItemDetailsRow(
+            TaskDetailsRow(
                 labelResID = R.string.task,
-                itemDetail = task.name,
+                taskDetail = task.name,
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
                         id = R.dimen
@@ -203,9 +203,9 @@ fun ItemDetails(
                     )
                 )
             )
-            ItemDetailsRow(
+            TaskDetailsRow(
                 labelResID = R.string.quantity_in_stock,
-                itemDetail = task.quantity.toString(),
+                taskDetail = task.quantity.toString(),
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
                         id = R.dimen
@@ -213,9 +213,9 @@ fun ItemDetails(
                     )
                 )
             )
-            ItemDetailsRow(
+            TaskDetailsRow(
                 labelResID = R.string.price,
-                itemDetail = task.formatedPrice(),
+                taskDetail = task.formatedPrice(),
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
                         id = R.dimen
@@ -229,13 +229,13 @@ fun ItemDetails(
 }
 
 @Composable
-private fun ItemDetailsRow(
-    @StringRes labelResID: Int, itemDetail: String, modifier: Modifier = Modifier
+private fun TaskDetailsRow(
+    @StringRes labelResID: Int, taskDetail: String, modifier: Modifier = Modifier
 ) {
     Row(modifier = modifier) {
         Text(text = stringResource(labelResID))
         Spacer(modifier = Modifier.weight(1f))
-        Text(text = itemDetail, fontWeight = FontWeight.Bold)
+        Text(text = taskDetail, fontWeight = FontWeight.Bold)
     }
 }
 
@@ -261,10 +261,10 @@ private fun DeleteConfirmationDialog(
 
 @Preview(showBackground = true)
 @Composable
-fun ItemDetailsScreenPreview() {
+fun TaskDetailsScreenPreview() {
     InventoryTheme {
-        ItemDetailsBody(ItemDetailsUiState(
-            outOfStock = true, itemDetails = ItemDetails(1, "Pen", "$100", "10")
-        ), onSellItem = {}, onDelete = {})
+        TaskDetailsBody(TaskDetailsUiState(
+            outOfStock = true, taskDetails = TaskDetails(1, "Pen", "$100", "10")
+        ), onSellTask = {}, onDelete = {})
     }
 }
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
index 74c1056a..230d4cf7 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
@@ -30,7 +30,7 @@ import kotlinx.coroutines.launch
 /**
  * ViewModel to retrieve, update and delete an item from the [TasksRepository]'s data source.
  */
-class ItemDetailsViewModel(
+class TaskDetailsViewModel(
     savedStateHandle: SavedStateHandle,
     private val tasksRepository: TasksRepository,
 ) : ViewModel() {
@@ -41,15 +41,15 @@ class ItemDetailsViewModel(
      * Holds the item details ui state. The data is retrieved from [TasksRepository] and mapped to
      * the UI state.
      */
-    val uiState: StateFlow<ItemDetailsUiState> =
+    val uiState: StateFlow<TaskDetailsUiState> =
         tasksRepository.getTaskStream(itemId)
             .filterNotNull()
             .map {
-                ItemDetailsUiState(outOfStock = it.quantity <= 0, itemDetails = it.toItemDetails())
+                TaskDetailsUiState(outOfStock = it.quantity <= 0, taskDetails = it.toItemDetails())
             }.stateIn(
                 scope = viewModelScope,
                 started = SharingStarted.WhileSubscribed(TIMEOUT_MILLIS),
-                initialValue = ItemDetailsUiState()
+                initialValue = TaskDetailsUiState()
             )
 
     /**
@@ -57,7 +57,7 @@ class ItemDetailsViewModel(
      */
     fun reduceQuantityByOne() {
         viewModelScope.launch {
-            val currentItem = uiState.value.itemDetails.toItem()
+            val currentItem = uiState.value.taskDetails.toTask()
             if (currentItem.quantity > 0) {
                 tasksRepository.updateTask(currentItem.copy(quantity = currentItem.quantity - 1))
             }
@@ -67,8 +67,8 @@ class ItemDetailsViewModel(
     /**
      * Deletes the item from the [TasksRepository]'s data source.
      */
-    suspend fun deleteItem() {
-        tasksRepository.deleteTask(uiState.value.itemDetails.toItem())
+    suspend fun deleteTask() {
+        tasksRepository.deleteTask(uiState.value.taskDetails.toTask())
     }
 
     companion object {
@@ -79,7 +79,7 @@ class ItemDetailsViewModel(
 /**
  * UI state for ItemDetailsScreen
  */
-data class ItemDetailsUiState(
+data class TaskDetailsUiState(
     val outOfStock: Boolean = true,
-    val itemDetails: ItemDetails = ItemDetails()
+    val taskDetails: TaskDetails = TaskDetails()
 )
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
index bfaa099a..757e3ceb 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
@@ -56,8 +56,8 @@ class TaskEditViewModel(
      * Update the item in the [TasksRepository]'s data source
      */
     suspend fun updateItem() {
-        if (validateInput(itemUiState.itemDetails)) {
-            tasksRepository.updateTask(itemUiState.itemDetails.toItem())
+        if (validateInput(itemUiState.taskDetails)) {
+            tasksRepository.updateTask(itemUiState.taskDetails.toTask())
         }
     }
 
@@ -65,12 +65,12 @@ class TaskEditViewModel(
      * Updates the [itemUiState] with the value provided in the argument. This method also triggers
      * a validation for input values.
      */
-    fun updateUiState(itemDetails: ItemDetails) {
+    fun updateUiState(taskDetails: TaskDetails) {
         itemUiState =
-            ItemUiState(itemDetails = itemDetails, isEntryValid = validateInput(itemDetails))
+            ItemUiState(taskDetails = taskDetails, isEntryValid = validateInput(taskDetails))
     }
 
-    private fun validateInput(uiState: ItemDetails = itemUiState.itemDetails): Boolean {
+    private fun validateInput(uiState: TaskDetails = itemUiState.taskDetails): Boolean {
         return with(uiState) {
             name.isNotBlank() && price.isNotBlank() && quantity.isNotBlank()
         }
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
index 59d862f6..d7295f21 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
@@ -101,7 +101,7 @@ fun ItemEntryScreen(
 @Composable
 fun ItemEntryBody(
     itemUiState: ItemUiState,
-    onItemValueChange: (ItemDetails) -> Unit,
+    onItemValueChange: (TaskDetails) -> Unit,
     onSaveClick: () -> Unit,
     modifier: Modifier = Modifier
 ) {
@@ -110,7 +110,7 @@ fun ItemEntryBody(
         verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_large))
     ) {
         ItemInputForm(
-            itemDetails = itemUiState.itemDetails,
+            taskDetails = itemUiState.taskDetails,
             onValueChange = onItemValueChange,
             modifier = Modifier.fillMaxWidth()
         )
@@ -127,9 +127,9 @@ fun ItemEntryBody(
 
 @Composable
 fun ItemInputForm(
-    itemDetails: ItemDetails,
+    taskDetails: TaskDetails,
     modifier: Modifier = Modifier,
-    onValueChange: (ItemDetails) -> Unit = {},
+    onValueChange: (TaskDetails) -> Unit = {},
     enabled: Boolean = true
 ) {
     Column(
@@ -137,8 +137,8 @@ fun ItemInputForm(
         verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
     ) {
         OutlinedTextField(
-            value = itemDetails.name,
-            onValueChange = { onValueChange(itemDetails.copy(name = it)) },
+            value = taskDetails.name,
+            onValueChange = { onValueChange(taskDetails.copy(name = it)) },
             label = { Text(stringResource(R.string.task_name_req)) },
             colors = OutlinedTextFieldDefaults.colors(
                 focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
@@ -150,8 +150,8 @@ fun ItemInputForm(
             singleLine = true
         )
         OutlinedTextField(
-            value = itemDetails.price,
-            onValueChange = { onValueChange(itemDetails.copy(price = it)) },
+            value = taskDetails.price,
+            onValueChange = { onValueChange(taskDetails.copy(price = it)) },
             keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Decimal),
             label = { Text(stringResource(R.string.task_price_req)) },
             colors = OutlinedTextFieldDefaults.colors(
@@ -165,8 +165,8 @@ fun ItemInputForm(
             singleLine = true
         )
         OutlinedTextField(
-            value = itemDetails.quantity,
-            onValueChange = { onValueChange(itemDetails.copy(quantity = it)) },
+            value = taskDetails.quantity,
+            onValueChange = { onValueChange(taskDetails.copy(quantity = it)) },
             keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
             label = { Text(stringResource(R.string.quantity_req)) },
             colors = OutlinedTextFieldDefaults.colors(
@@ -192,7 +192,7 @@ fun ItemInputForm(
 private fun ItemEntryScreenPreview() {
     InventoryTheme {
         ItemEntryBody(itemUiState = ItemUiState(
-            ItemDetails(
+            TaskDetails(
                 name = "Item name", price = "10.00", quantity = "5"
             )
         ), onItemValueChange = {}, onSaveClick = {})
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt
index 4fdc9fb3..4bf5e9c8 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt
@@ -39,9 +39,9 @@ class ItemEntryViewModel(private val tasksRepository: TasksRepository) : ViewMod
      * Updates the [itemUiState] with the value provided in the argument. This method also triggers
      * a validation for input values.
      */
-    fun updateUiState(itemDetails: ItemDetails) {
+    fun updateUiState(taskDetails: TaskDetails) {
         itemUiState =
-            ItemUiState(itemDetails = itemDetails, isEntryValid = validateInput(itemDetails))
+            ItemUiState(taskDetails = taskDetails, isEntryValid = validateInput(taskDetails))
     }
 
     /**
@@ -49,11 +49,11 @@ class ItemEntryViewModel(private val tasksRepository: TasksRepository) : ViewMod
      */
     suspend fun saveItem() {
         if (validateInput()) {
-            tasksRepository.insertTask(itemUiState.itemDetails.toItem())
+            tasksRepository.insertTask(itemUiState.taskDetails.toTask())
         }
     }
 
-    private fun validateInput(uiState: ItemDetails = itemUiState.itemDetails): Boolean {
+    private fun validateInput(uiState: TaskDetails = itemUiState.taskDetails): Boolean {
         return with(uiState) {
             name.isNotBlank() && price.isNotBlank() && quantity.isNotBlank()
         }
@@ -64,11 +64,11 @@ class ItemEntryViewModel(private val tasksRepository: TasksRepository) : ViewMod
  * Represents Ui State for an Item.
  */
 data class ItemUiState(
-    val itemDetails: ItemDetails = ItemDetails(),
+    val taskDetails: TaskDetails = TaskDetails(),
     val isEntryValid: Boolean = false
 )
 
-data class ItemDetails(
+data class TaskDetails(
     val id: Int = 0,
     val name: String = "",
     val price: String = "",
@@ -76,11 +76,11 @@ data class ItemDetails(
 )
 
 /**
- * Extension function to convert [ItemUiState] to [Task]. If the value of [ItemDetails.price] is
+ * Extension function to convert [ItemUiState] to [Task]. If the value of [TaskDetails.price] is
  * not a valid [Double], then the price will be set to 0.0. Similarly if the value of
  * [ItemUiState] is not a valid [Int], then the quantity will be set to 0
  */
-fun ItemDetails.toItem(): Task = Task(
+fun TaskDetails.toTask(): Task = Task(
     id = id,
     name = name,
     price = price.toDoubleOrNull() ?: 0.0,
@@ -95,14 +95,14 @@ fun Task.formatedPrice(): String {
  * Extension function to convert [Task] to [ItemUiState]
  */
 fun Task.toItemUiState(isEntryValid: Boolean = false): ItemUiState = ItemUiState(
-    itemDetails = this.toItemDetails(),
+    taskDetails = this.toItemDetails(),
     isEntryValid = isEntryValid
 )
 
 /**
- * Extension function to convert [Task] to [ItemDetails]
+ * Extension function to convert [Task] to [TaskDetails]
  */
-fun Task.toItemDetails(): ItemDetails = ItemDetails(
+fun Task.toItemDetails(): TaskDetails = TaskDetails(
     id = id,
     name = name,
     price = price.toString(),

From f9dac3bbc84b1ff668fa289655807aaa4a070b0f Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 05:58:36 +0800
Subject: [PATCH 10/32] task.q <0 remove

---
 .../java/com/example/inventory/ui/task/TaskDetailsScreen.kt | 2 +-
 .../com/example/inventory/ui/task/TaskDetailsViewModel.kt   | 6 +-----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 984801bf..e5df8270 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -205,7 +205,7 @@ fun TaskDetails(
             )
             TaskDetailsRow(
                 labelResID = R.string.quantity_in_stock,
-                taskDetail = task.quantity.toString(),
+                taskDetail = task.priority.toString(),
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
                         id = R.dimen
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
index 230d4cf7..575b2ace 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
@@ -45,7 +45,7 @@ class TaskDetailsViewModel(
         tasksRepository.getTaskStream(itemId)
             .filterNotNull()
             .map {
-                TaskDetailsUiState(outOfStock = it.quantity <= 0, taskDetails = it.toItemDetails())
+                TaskDetailsUiState(taskDetails = it.toItemDetails())
             }.stateIn(
                 scope = viewModelScope,
                 started = SharingStarted.WhileSubscribed(TIMEOUT_MILLIS),
@@ -58,9 +58,6 @@ class TaskDetailsViewModel(
     fun reduceQuantityByOne() {
         viewModelScope.launch {
             val currentItem = uiState.value.taskDetails.toTask()
-            if (currentItem.quantity > 0) {
-                tasksRepository.updateTask(currentItem.copy(quantity = currentItem.quantity - 1))
-            }
         }
     }
 
@@ -80,6 +77,5 @@ class TaskDetailsViewModel(
  * UI state for ItemDetailsScreen
  */
 data class TaskDetailsUiState(
-    val outOfStock: Boolean = true,
     val taskDetails: TaskDetails = TaskDetails()
 )

From 7516cc2eac83fd364bdbc484a89f1b61f7a1ad69 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 06:18:48 +0800
Subject: [PATCH 11/32] Quinity to priority price remove

---
 .../example/inventory/ui/task/TaskDetailsScreen.kt |  6 +++---
 .../example/inventory/ui/task/TaskEditViewModel.kt |  2 +-
 .../example/inventory/ui/task/TaskEntryScreen.kt   |  6 +++---
 .../inventory/ui/task/TaskEntryViewModel.kt        | 14 ++++----------
 4 files changed, 11 insertions(+), 17 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index e5df8270..4af98a93 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -152,7 +152,7 @@ private fun TaskDetailsBody(
             onClick = onSellTask,
             modifier = Modifier.fillMaxWidth(),
             shape = MaterialTheme.shapes.small,
-            enabled = !taskDetailsUiState.outOfStock
+            //enabled = !taskDetailsUiState.outOfStock
         ) {
             Text(stringResource(R.string.sell))
         }
@@ -205,7 +205,7 @@ fun TaskDetails(
             )
             TaskDetailsRow(
                 labelResID = R.string.quantity_in_stock,
-                taskDetail = task.priority.toString(),
+                taskDetail = task.priority,
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
                         id = R.dimen
@@ -264,7 +264,7 @@ private fun DeleteConfirmationDialog(
 fun TaskDetailsScreenPreview() {
     InventoryTheme {
         TaskDetailsBody(TaskDetailsUiState(
-            outOfStock = true, taskDetails = TaskDetails(1, "Pen", "$100", "10")
+            taskDetails = TaskDetails(1, "Pen", "$100", "10")
         ), onSellTask = {}, onDelete = {})
     }
 }
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
index 757e3ceb..6f838d5d 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
@@ -72,7 +72,7 @@ class TaskEditViewModel(
 
     private fun validateInput(uiState: TaskDetails = itemUiState.taskDetails): Boolean {
         return with(uiState) {
-            name.isNotBlank() && price.isNotBlank() && quantity.isNotBlank()
+            name.isNotBlank() && price.isNotBlank() && priority.isNotBlank()
         }
     }
 }
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
index d7295f21..0b04feca 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
@@ -165,8 +165,8 @@ fun ItemInputForm(
             singleLine = true
         )
         OutlinedTextField(
-            value = taskDetails.quantity,
-            onValueChange = { onValueChange(taskDetails.copy(quantity = it)) },
+            value = taskDetails.priority,
+            onValueChange = { onValueChange(taskDetails.copy(priority = it)) },
             keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
             label = { Text(stringResource(R.string.quantity_req)) },
             colors = OutlinedTextFieldDefaults.colors(
@@ -193,7 +193,7 @@ private fun ItemEntryScreenPreview() {
     InventoryTheme {
         ItemEntryBody(itemUiState = ItemUiState(
             TaskDetails(
-                name = "Item name", price = "10.00", quantity = "5"
+                name = "Item name", price = "10.00", priority = "5"
             )
         ), onItemValueChange = {}, onSaveClick = {})
     }
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt
index 4bf5e9c8..2910ca94 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEntryViewModel.kt
@@ -55,7 +55,7 @@ class ItemEntryViewModel(private val tasksRepository: TasksRepository) : ViewMod
 
     private fun validateInput(uiState: TaskDetails = itemUiState.taskDetails): Boolean {
         return with(uiState) {
-            name.isNotBlank() && price.isNotBlank() && quantity.isNotBlank()
+            name.isNotBlank() && priority.isNotBlank()
         }
     }
 }
@@ -71,8 +71,7 @@ data class ItemUiState(
 data class TaskDetails(
     val id: Int = 0,
     val name: String = "",
-    val price: String = "",
-    val quantity: String = "",
+    val priority: String = "",
 )
 
 /**
@@ -83,13 +82,9 @@ data class TaskDetails(
 fun TaskDetails.toTask(): Task = Task(
     id = id,
     name = name,
-    price = price.toDoubleOrNull() ?: 0.0,
-    quantity = quantity.toIntOrNull() ?: 0
+    priority = priority
 )
 
-fun Task.formatedPrice(): String {
-    return NumberFormat.getCurrencyInstance().format(price)
-}
 
 /**
  * Extension function to convert [Task] to [ItemUiState]
@@ -105,6 +100,5 @@ fun Task.toItemUiState(isEntryValid: Boolean = false): ItemUiState = ItemUiState
 fun Task.toItemDetails(): TaskDetails = TaskDetails(
     id = id,
     name = name,
-    price = price.toString(),
-    quantity = quantity.toString()
+    priority = priority
 )

From c160c8ffa00040ca642f689ff9ac0674bbeec7e3 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 06:19:39 +0800
Subject: [PATCH 12/32] Preview edited

price remove
---
 app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt   | 2 --
 .../java/com/example/inventory/ui/task/TaskDetailsScreen.kt     | 2 +-
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index b7f0bf94..d8209b0d 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -59,7 +59,6 @@ import com.example.inventory.InventoryTopAppBar
 import com.example.inventory.R
 import com.example.inventory.data.Task
 import com.example.inventory.ui.AppViewModelProvider
-import com.example.inventory.ui.task.formatedPrice
 import com.example.inventory.ui.navigation.NavigationDestination
 import com.example.inventory.ui.theme.InventoryTheme
 
@@ -186,7 +185,6 @@ private fun InventoryItem(
                 )
                 Spacer(Modifier.weight(1f))
                 Text(
-                    text = task.formatedPrice(),
                     style = MaterialTheme.typography.titleMedium
                 )
             }
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 4af98a93..2f159575 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -264,7 +264,7 @@ private fun DeleteConfirmationDialog(
 fun TaskDetailsScreenPreview() {
     InventoryTheme {
         TaskDetailsBody(TaskDetailsUiState(
-            taskDetails = TaskDetails(1, "Pen", "$100", "10")
+            taskDetails = TaskDetails(1, "Task1", "High")
         ), onSellTask = {}, onDelete = {})
     }
 }

From dbdcee886b40aa77fd4935fdce28d6c85a983c9f Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 06:20:19 +0800
Subject: [PATCH 13/32]  text = "WAITING TO BE REMOVE", locate

---
 app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index d8209b0d..07dd4099 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -185,6 +185,7 @@ private fun InventoryItem(
                 )
                 Spacer(Modifier.weight(1f))
                 Text(
+                    text = "WAITING TO BE REMOVE",
                     style = MaterialTheme.typography.titleMedium
                 )
             }

From 160cd64ad41c5faf00ecb56c0f5af515133c3800 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 06:51:24 +0800
Subject: [PATCH 14/32] Runnable setting

---
 .../com/example/inventory/ui/task/TaskDetailsScreen.kt     | 2 +-
 .../com/example/inventory/ui/task/TaskEditViewModel.kt     | 2 +-
 .../java/com/example/inventory/ui/task/TaskEntryScreen.kt  | 7 ++++---
 build.gradle.kts                                           | 4 ++--
 4 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 2f159575..9c0fc019 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -215,7 +215,7 @@ fun TaskDetails(
             )
             TaskDetailsRow(
                 labelResID = R.string.price,
-                taskDetail = task.formatedPrice(),
+                taskDetail = "READY TO BE REMOVE",
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
                         id = R.dimen
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
index 6f838d5d..a302c987 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEditViewModel.kt
@@ -72,7 +72,7 @@ class TaskEditViewModel(
 
     private fun validateInput(uiState: TaskDetails = itemUiState.taskDetails): Boolean {
         return with(uiState) {
-            name.isNotBlank() && price.isNotBlank() && priority.isNotBlank()
+            name.isNotBlank() && priority.isNotBlank()
         }
     }
 }
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
index 0b04feca..79a3b742 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
@@ -150,8 +150,9 @@ fun ItemInputForm(
             singleLine = true
         )
         OutlinedTextField(
-            value = taskDetails.price,
-            onValueChange = { onValueChange(taskDetails.copy(price = it)) },
+            value = "READY TO BE REMOVE",
+            onValueChange = { //onValueChange(taskDetails.copy(price = it))
+                },
             keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Decimal),
             label = { Text(stringResource(R.string.task_price_req)) },
             colors = OutlinedTextFieldDefaults.colors(
@@ -193,7 +194,7 @@ private fun ItemEntryScreenPreview() {
     InventoryTheme {
         ItemEntryBody(itemUiState = ItemUiState(
             TaskDetails(
-                name = "Item name", price = "10.00", priority = "5"
+                name = "Task name",  priority = "LOW"
             )
         ), onItemValueChange = {}, onSaveClick = {})
     }
diff --git a/build.gradle.kts b/build.gradle.kts
index bc180f53..656cba28 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -22,8 +22,8 @@ buildscript {
 }
 
 plugins {
-    id("com.android.application") version "8.1.4" apply false
-    id("com.android.library") version "8.1.4" apply false
+    id("com.android.application") version "8.8.2" apply false
+    id("com.android.library") version "8.8.2" apply false
     id("org.jetbrains.kotlin.android") version "2.1.0" apply false
     id("org.jetbrains.kotlin.plugin.compose") version "2.1.0" apply false
 }

From 1110d3eb729ef377eed6ddc4c511cf547559f839 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 06:55:40 +0800
Subject: [PATCH 15/32] TaskEntryScreen.kt remove on coulumn

---
 .../inventory/ui/task/TaskEntryScreen.kt      | 21 ++-----------------
 app/src/main/res/values/strings.xml           |  2 +-
 2 files changed, 3 insertions(+), 20 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
index 79a3b742..d8ba5199 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
@@ -47,8 +47,6 @@ import com.example.inventory.ui.AppViewModelProvider
 import com.example.inventory.ui.navigation.NavigationDestination
 import com.example.inventory.ui.theme.InventoryTheme
 import kotlinx.coroutines.launch
-import java.util.Currency
-import java.util.Locale
 
 object ItemEntryDestination : NavigationDestination {
     override val route = "item_entry"
@@ -149,27 +147,12 @@ fun ItemInputForm(
             enabled = enabled,
             singleLine = true
         )
-        OutlinedTextField(
-            value = "READY TO BE REMOVE",
-            onValueChange = { //onValueChange(taskDetails.copy(price = it))
-                },
-            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Decimal),
-            label = { Text(stringResource(R.string.task_price_req)) },
-            colors = OutlinedTextFieldDefaults.colors(
-                focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
-                unfocusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
-                disabledContainerColor = MaterialTheme.colorScheme.secondaryContainer,
-            ),
-            leadingIcon = { Text(Currency.getInstance(Locale.getDefault()).symbol) },
-            modifier = Modifier.fillMaxWidth(),
-            enabled = enabled,
-            singleLine = true
-        )
+
         OutlinedTextField(
             value = taskDetails.priority,
             onValueChange = { onValueChange(taskDetails.copy(priority = it)) },
             keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
-            label = { Text(stringResource(R.string.quantity_req)) },
+            label = { Text(stringResource(R.string.priority_level)) },
             colors = OutlinedTextFieldDefaults.colors(
                 focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
                 unfocusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 4024d166..0bba1334 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -30,7 +30,7 @@
     <string name="price">Price</string>
     <string name="quantity_in_stock">Quantity in stock</string>
     <string name="in_stock">%d in stock</string>
-    <string name="quantity_req">Quantity in Stock*</string>
+    <string name="priority_level">Priority level*</string>
     <string name="save_action">Save</string>
     <string name="sell">Sell</string>
     <string name="yes">Yes</string>

From 3d07b32729da821e427d1f47855ca138be49d7d7 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 06:59:58 +0800
Subject: [PATCH 16/32] price del

---
 .../java/com/example/inventory/ui/task/TaskDetailsScreen.kt   | 2 +-
 app/src/main/res/values/strings.xml                           | 4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 9c0fc019..e67c01e1 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -204,7 +204,7 @@ fun TaskDetails(
                 )
             )
             TaskDetailsRow(
-                labelResID = R.string.quantity_in_stock,
+                labelResID = R.string.priority_level_show,
                 taskDetail = task.priority,
                 modifier = Modifier.padding(
                     horizontal = dimensionResource(
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 0bba1334..6bef5901 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -25,10 +25,8 @@
     <string name="task_detail_title">Task Details</string>
     <string name="task_entry_title">Add Task</string>
     <string name="task_name_req">Task Name*</string>
-    <string name="task_price_req">Task Price*</string>
     <string name="no">No</string>
-    <string name="price">Price</string>
-    <string name="quantity_in_stock">Quantity in stock</string>
+    <string name="priority_level_show">Priority level</string>
     <string name="in_stock">%d in stock</string>
     <string name="priority_level">Priority level*</string>
     <string name="save_action">Save</string>

From 7cf0ffe6dd06cb7ebec7ee8cb00170b074cf6c2d Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 07:01:20 +0800
Subject: [PATCH 17/32] Remove price coloumn

---
 .../example/inventory/ui/task/TaskDetailsScreen.kt    | 11 +----------
 build.gradle.kts                                      |  4 ++--
 2 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index e67c01e1..80be853a 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -213,16 +213,7 @@ fun TaskDetails(
                     )
                 )
             )
-            TaskDetailsRow(
-                labelResID = R.string.price,
-                taskDetail = "READY TO BE REMOVE",
-                modifier = Modifier.padding(
-                    horizontal = dimensionResource(
-                        id = R.dimen
-                            .padding_medium
-                    )
-                )
-            )
+
         }
 
     }
diff --git a/build.gradle.kts b/build.gradle.kts
index 656cba28..da5856ff 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -24,10 +24,10 @@ buildscript {
 plugins {
     id("com.android.application") version "8.8.2" apply false
     id("com.android.library") version "8.8.2" apply false
-    id("org.jetbrains.kotlin.android") version "2.1.0" apply false
+    id("org.jetbrains.kotlin.android") version "2.1.20" apply false
     id("org.jetbrains.kotlin.plugin.compose") version "2.1.0" apply false
 }
 
 tasks.register("clean", Delete::class) {
-    delete(rootProject.buildDir)
+    delete(rootProject)
 }

From d271a6b2ff94d7be52b91c84973adb4dc4203650 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 07:16:01 +0800
Subject: [PATCH 18/32] UI changed

---
 .../main/java/com/example/inventory/data/InventoryDatabase.kt | 2 +-
 app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt | 4 ----
 app/src/main/res/values/strings.xml                           | 2 +-
 build.gradle.kts                                              | 4 ++--
 4 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/data/InventoryDatabase.kt b/app/src/main/java/com/example/inventory/data/InventoryDatabase.kt
index d9598176..b8d294d0 100644
--- a/app/src/main/java/com/example/inventory/data/InventoryDatabase.kt
+++ b/app/src/main/java/com/example/inventory/data/InventoryDatabase.kt
@@ -24,7 +24,7 @@ import androidx.room.RoomDatabase
 /**
  * Database class with a singleton Instance object.
  */
-@Database(entities = [Task::class], version = 1, exportSchema = false)
+@Database(entities = [Task::class], version = 2, exportSchema = false)
 abstract class InventoryDatabase : RoomDatabase() {
 
     abstract fun taskDao(): TaskDao
diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index 07dd4099..2ede03dc 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -184,10 +184,6 @@ private fun InventoryItem(
                     style = MaterialTheme.typography.titleLarge,
                 )
                 Spacer(Modifier.weight(1f))
-                Text(
-                    text = "WAITING TO BE REMOVE",
-                    style = MaterialTheme.typography.titleMedium
-                )
             }
             Text(
                 text = stringResource(R.string.in_stock, task.priority),
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 6bef5901..30c3f049 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -27,7 +27,7 @@
     <string name="task_name_req">Task Name*</string>
     <string name="no">No</string>
     <string name="priority_level_show">Priority level</string>
-    <string name="in_stock">%d in stock</string>
+    <string name="in_stock">Priority %s</string>
     <string name="priority_level">Priority level*</string>
     <string name="save_action">Save</string>
     <string name="sell">Sell</string>
diff --git a/build.gradle.kts b/build.gradle.kts
index da5856ff..656cba28 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -24,10 +24,10 @@ buildscript {
 plugins {
     id("com.android.application") version "8.8.2" apply false
     id("com.android.library") version "8.8.2" apply false
-    id("org.jetbrains.kotlin.android") version "2.1.20" apply false
+    id("org.jetbrains.kotlin.android") version "2.1.0" apply false
     id("org.jetbrains.kotlin.plugin.compose") version "2.1.0" apply false
 }
 
 tasks.register("clean", Delete::class) {
-    delete(rootProject)
+    delete(rootProject.buildDir)
 }

From a31f3b94133de8c5f8c00945e16290125d1217d1 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 07:21:03 +0800
Subject: [PATCH 19/32] Add color system

---
 .../example/inventory/ui/home/HomeScreen.kt   | 25 +++++++++++++------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index 2ede03dc..adccf2ee 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -47,6 +47,7 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalLayoutDirection
 import androidx.compose.ui.res.dimensionResource
@@ -169,8 +170,17 @@ private fun InventoryList(
 private fun InventoryItem(
     task: Task, modifier: Modifier = Modifier
 ) {
+    val cardColor = when (task.priority.lowercase()) {
+        "high" -> MaterialTheme.colorScheme.errorContainer
+        "medium" -> Color(0xFFFFF9C4)
+        "low" -> Color(0xFFC8E6C9)
+        else -> MaterialTheme.colorScheme.surface
+    }
+
     Card(
-        modifier = modifier, elevation = CardDefaults.cardElevation(defaultElevation = 2.dp)
+        modifier = modifier,
+        elevation = CardDefaults.cardElevation(defaultElevation = 2.dp),
+        colors = CardDefaults.cardColors(containerColor = cardColor)
     ) {
         Column(
             modifier = Modifier.padding(dimensionResource(id = R.dimen.padding_large)),
@@ -184,11 +194,12 @@ private fun InventoryItem(
                     style = MaterialTheme.typography.titleLarge,
                 )
                 Spacer(Modifier.weight(1f))
+
+                Text(
+                    text = stringResource(R.string.in_stock, task.priority),
+                    style = MaterialTheme.typography.titleMedium
+                )
             }
-            Text(
-                text = stringResource(R.string.in_stock, task.priority),
-                style = MaterialTheme.typography.titleMedium
-            )
         }
     }
 }
@@ -198,7 +209,7 @@ private fun InventoryItem(
 fun HomeBodyPreview() {
     InventoryTheme {
         HomeBody(listOf(
-            Task(1, "Task1", "High"), Task(2, "Task2", "High"), Task(3, "Task3", "Low")
+            Task(1, "Task1", "High"), Task(2, "Task2", "Medium"), Task(3, "Task3", "Low")
         ), onTaskClick = {})
     }
 }
@@ -216,7 +227,7 @@ fun HomeBodyEmptyListPreview() {
 fun InventoryItemPreview() {
     InventoryTheme {
         InventoryItem(
-            Task(1, "Task1", "High"),
+            Task(1, "Task1", "Medium"),
         )
     }
 }

From 9bbd6ec717258662028f349a2e0f0f796e976baf Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 07:22:03 +0800
Subject: [PATCH 20/32] sell button remove

---
 .../com/example/inventory/ui/task/TaskDetailsScreen.kt    | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 80be853a..4997c779 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -148,14 +148,6 @@ private fun TaskDetailsBody(
         TaskDetails(
             task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
         )
-        Button(
-            onClick = onSellTask,
-            modifier = Modifier.fillMaxWidth(),
-            shape = MaterialTheme.shapes.small,
-            //enabled = !taskDetailsUiState.outOfStock
-        ) {
-            Text(stringResource(R.string.sell))
-        }
         OutlinedButton(
             onClick = { deleteConfirmationRequired = true },
             shape = MaterialTheme.shapes.small,

From 73bbecf6b76103b95123a0588b82328cf4f9ae46 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Mon, 12 May 2025 08:11:20 +0800
Subject: [PATCH 21/32] Radio Button done

---
 .../inventory/ui/task/TaskEntryScreen.kt      | 64 +++++++++++++------
 1 file changed, 45 insertions(+), 19 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
index d8ba5199..619295b9 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskEntryScreen.kt
@@ -18,11 +18,15 @@ package com.example.inventory.ui.task
 
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.calculateEndPadding
 import androidx.compose.foundation.layout.calculateStartPadding
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.selection.selectable
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Button
@@ -30,14 +34,18 @@ import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.OutlinedTextFieldDefaults
+import androidx.compose.material3.RadioButton
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalLayoutDirection
 import androidx.compose.ui.res.dimensionResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.Role
 import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.lifecycle.viewmodel.compose.viewModel
@@ -129,7 +137,10 @@ fun ItemInputForm(
     modifier: Modifier = Modifier,
     onValueChange: (TaskDetails) -> Unit = {},
     enabled: Boolean = true
+
 ) {
+    val priorities = listOf("High", "Medium", "Low")
+
     Column(
         modifier = modifier,
         verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
@@ -147,26 +158,41 @@ fun ItemInputForm(
             enabled = enabled,
             singleLine = true
         )
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(vertical = dimensionResource(id = R.dimen.padding_small)),
+            horizontalArrangement = Arrangement.Center,
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            priorities.forEach { level ->
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    modifier = Modifier
+                        .weight(1f)
+                        .selectable(
+                            selected = (taskDetails.priority == level),
+                            onClick = { onValueChange(taskDetails.copy(priority = level)) },
+                            role = Role.RadioButton
+                        )
+                ) {
+                    RadioButton(
+                        selected = (taskDetails.priority == level),
+                        onClick = null, // 整個 Row 都可點
+                        enabled = enabled
+                    )
+                    Spacer(modifier = Modifier.width(dimensionResource(id = R.dimen.padding_small)))
+                    Text(level,
+                        color = if (level.lowercase() == "high")
+                            MaterialTheme.colorScheme.error //High Red
+                        else if (level.lowercase() == "medium")
+                            Color(0xFFFBC02D) //High Yellow
+                        else
+                            Color(0xFF388E3C) //High Green
 
-        OutlinedTextField(
-            value = taskDetails.priority,
-            onValueChange = { onValueChange(taskDetails.copy(priority = it)) },
-            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
-            label = { Text(stringResource(R.string.priority_level)) },
-            colors = OutlinedTextFieldDefaults.colors(
-                focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
-                unfocusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
-                disabledContainerColor = MaterialTheme.colorScheme.secondaryContainer,
-            ),
-            modifier = Modifier.fillMaxWidth(),
-            enabled = enabled,
-            singleLine = true
-        )
-        if (enabled) {
-            Text(
-                text = stringResource(R.string.required_fields),
-                modifier = Modifier.padding(start = dimensionResource(id = R.dimen.padding_medium))
-            )
+                    )
+                }
+            }
         }
     }
 }

From 63d11282ea9309d0f7e494478ba957187457d861 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Tue, 13 May 2025 00:49:42 +0800
Subject: [PATCH 22/32] add edit button

---
 .../inventory/ui/task/TaskDetailsScreen.kt     | 18 +++++++++++++++++-
 app/src/main/res/values/strings.xml            |  1 +
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 4997c779..7ff78881 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -34,6 +34,7 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Button
+import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -52,6 +53,7 @@ import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalLayoutDirection
 import androidx.compose.ui.res.dimensionResource
 import androidx.compose.ui.res.stringResource
@@ -148,10 +150,24 @@ private fun TaskDetailsBody(
         TaskDetails(
             task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
         )
+
         OutlinedButton(
-            onClick = { deleteConfirmationRequired = true },
+            onClick = {  },//TODO
             shape = MaterialTheme.shapes.small,
             modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(stringResource(R.string.edit))
+        }
+
+
+        OutlinedButton(
+            onClick = { deleteConfirmationRequired = true },
+            shape = MaterialTheme.shapes.small,
+            modifier = Modifier.fillMaxWidth(),
+            colors = ButtonDefaults.outlinedButtonColors(
+                containerColor = MaterialTheme.colorScheme.primaryContainer  // 你可以換成其他顏色，例如 MaterialTheme.colorScheme.primary
+            )
+
         ) {
             Text(stringResource(R.string.delete))
         }
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 30c3f049..d271bdb2 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -18,6 +18,7 @@
     <string name="attention">Attention</string>
     <string name="back_button">Back</string>
     <string name="delete">Delete</string>
+    <string name="edit">Edit</string>
     <string name="delete_question">Are you sure you want to delete?</string>
     <string name="no_task_description">Oops!\nNo tasks in the lists.\nTap + to add.</string>
     <string name="edit_task_title">Edit Task</string>

From 981f79639e2fa3ba3243b5badcbad746548c1539 Mon Sep 17 00:00:00 2001
From: Max7414 <komax0109@gmail.com>
Date: Tue, 13 May 2025 08:49:50 +0800
Subject: [PATCH 23/32] =?UTF-8?q?=E5=A2=9E=E5=8A=A0disabled=E7=9A=84?=
 =?UTF-8?q?=E8=BC=B8=E5=85=A5=E7=AD=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../inventory/ui/task/TaskDetailsScreen.kt    | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 7ff78881..c395a860 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -28,7 +28,9 @@ import androidx.compose.foundation.layout.calculateStartPadding
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.safeDrawing
+import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.selection.selectable
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Edit
@@ -42,6 +44,9 @@ import androidx.compose.material3.FloatingActionButton
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.OutlinedTextFieldDefaults
+import androidx.compose.material3.RadioButton
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
@@ -52,13 +57,16 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalLayoutDirection
 import androidx.compose.ui.res.dimensionResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.Role
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.example.inventory.InventoryTopAppBar
 import com.example.inventory.R
@@ -147,6 +155,9 @@ private fun TaskDetailsBody(
         verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
     ) {
         var deleteConfirmationRequired by rememberSaveable { mutableStateOf(false) }
+        var inputText by rememberSaveable { mutableStateOf(taskDetailsUiState.taskDetails.name) }
+        var editable by rememberSaveable { mutableStateOf(false) }           // 編輯開關
+        var selectedPriority by rememberSaveable { mutableStateOf(taskDetailsUiState.taskDetails.priority) }
         TaskDetails(
             task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
         )
@@ -171,6 +182,51 @@ private fun TaskDetailsBody(
         ) {
             Text(stringResource(R.string.delete))
         }
+
+        OutlinedTextField(
+            value = inputText,
+            onValueChange = { inputText = it },
+            label = { Text("輸入任務名稱") },
+            colors = OutlinedTextFieldDefaults.colors(
+                focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+                unfocusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+                disabledContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+            ),
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(top = 16.dp),
+            enabled = editable
+        )
+        val priorities = listOf("High", "Medium", "Low")
+        Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+            priorities.forEach { level ->
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    modifier = Modifier
+                        .weight(1f)
+                        .selectable(
+                            selected = (selectedPriority == level),
+                            onClick = { if (editable) selectedPriority = level },
+                            role = Role.RadioButton
+                        )
+                ) {
+                    RadioButton(
+                        selected = (selectedPriority == level),
+                        onClick = null, // 整個 Row 都可點
+                        enabled = editable
+                    )
+                    Spacer(modifier = Modifier.width(dimensionResource(id = R.dimen.padding_small)))
+                    Text(
+                        level,
+                        color = when (level.lowercase()) {
+                            "high" -> MaterialTheme.colorScheme.error       // High：紅
+                            "medium" -> Color(0xFFFBC02D)                  // Medium：黃
+                            else -> Color(0xFF388E3C)                      // Low：綠
+                        }
+                    )
+                }
+            }
+        }
         if (deleteConfirmationRequired) {
             DeleteConfirmationDialog(
                 onDeleteConfirm = {

From efc3efcac4011e12e082a061b15dd53a872012ba Mon Sep 17 00:00:00 2001
From: Max7414 <komax0109@gmail.com>
Date: Tue, 13 May 2025 08:51:04 +0800
Subject: [PATCH 24/32] =?UTF-8?q?=E5=88=AA=E9=99=A4=E6=8C=89=E9=88=95?=
 =?UTF-8?q?=E4=BD=8D=E7=BD=AE=E8=AA=BF=E6=8F=9B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../inventory/ui/task/TaskDetailsScreen.kt    | 21 ++++++++++---------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index c395a860..d734ed08 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -161,16 +161,6 @@ private fun TaskDetailsBody(
         TaskDetails(
             task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
         )
-
-        OutlinedButton(
-            onClick = {  },//TODO
-            shape = MaterialTheme.shapes.small,
-            modifier = Modifier.fillMaxWidth()
-        ) {
-            Text(stringResource(R.string.edit))
-        }
-
-
         OutlinedButton(
             onClick = { deleteConfirmationRequired = true },
             shape = MaterialTheme.shapes.small,
@@ -183,6 +173,17 @@ private fun TaskDetailsBody(
             Text(stringResource(R.string.delete))
         }
 
+
+        OutlinedButton(
+            onClick = {  },//TODO
+            shape = MaterialTheme.shapes.small,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(stringResource(R.string.edit))
+        }
+
+
+
         OutlinedTextField(
             value = inputText,
             onValueChange = { inputText = it },

From c54f4439e8c4cba69d89d223ee6d1008d4796de9 Mon Sep 17 00:00:00 2001
From: Max7414 <komax0109@gmail.com>
Date: Tue, 13 May 2025 09:29:41 +0800
Subject: [PATCH 25/32] =?UTF-8?q?=E5=AE=8C=E6=88=90=E7=B7=A8=E8=BC=AF?=
 =?UTF-8?q?=E5=8A=9F=E8=83=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../inventory/ui/task/TaskDetailsScreen.kt    | 198 +++++++++---------
 .../inventory/ui/task/TaskDetailsViewModel.kt |  60 +++---
 app/src/main/res/values/strings.xml           |   2 +
 3 files changed, 124 insertions(+), 136 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index d734ed08..db6faffc 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -1,19 +1,4 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
+// TaskDetailsScreen.kt
 package com.example.inventory.ui.task
 
 import androidx.annotation.StringRes
@@ -35,7 +20,6 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
@@ -91,8 +75,9 @@ fun TaskDetailsScreen(
     modifier: Modifier = Modifier,
     viewModel: TaskDetailsViewModel = viewModel(factory = AppViewModelProvider.Factory)
 ) {
-    val uiState = viewModel.uiState.collectAsState()
+    val uiState by viewModel.uiState.collectAsState()
     val coroutineScope = rememberCoroutineScope()
+
     Scaffold(
         topBar = {
             InventoryTopAppBar(
@@ -103,7 +88,7 @@ fun TaskDetailsScreen(
         },
         floatingActionButton = {
             FloatingActionButton(
-                onClick = { navigateToEditTask(uiState.value.taskDetails.id) },
+                onClick = { navigateToEditTask(uiState.taskDetails.id) },
                 shape = MaterialTheme.shapes.medium,
                 modifier = Modifier
                     .padding(
@@ -120,18 +105,19 @@ fun TaskDetailsScreen(
         modifier = modifier,
     ) { innerPadding ->
         TaskDetailsBody(
-            taskDetailsUiState = uiState.value,
-            onSellTask = { viewModel.reduceQuantityByOne() },
+            taskDetailsUiState = uiState,
             onDelete = {
-                // Note: If the user rotates the screen very fast, the operation may get cancelled
-                // and the task may not be deleted from the Database. This is because when config
-                // change occurs, the Activity will be recreated and the rememberCoroutineScope will
-                // be cancelled - since the scope is bound to composition.
                 coroutineScope.launch {
                     viewModel.deleteTask()
                     navigateBack()
                 }
             },
+            onConfirm = { newName, newPriority ->
+                viewModel.updateTask(
+                    name = newName,
+                    priority = newPriority
+                )
+            },
             modifier = Modifier
                 .padding(
                     start = innerPadding.calculateStartPadding(LocalLayoutDirection.current),
@@ -146,60 +132,87 @@ fun TaskDetailsScreen(
 @Composable
 private fun TaskDetailsBody(
     taskDetailsUiState: TaskDetailsUiState,
-    onSellTask: () -> Unit,
     onDelete: () -> Unit,
+    onConfirm: (String, String) -> Unit,
     modifier: Modifier = Modifier
 ) {
     Column(
         modifier = modifier.padding(dimensionResource(id = R.dimen.padding_medium)),
         verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
     ) {
+        // 狀態
         var deleteConfirmationRequired by rememberSaveable { mutableStateOf(false) }
+        var editable by rememberSaveable { mutableStateOf(false) }
         var inputText by rememberSaveable { mutableStateOf(taskDetailsUiState.taskDetails.name) }
-        var editable by rememberSaveable { mutableStateOf(false) }           // 編輯開關
         var selectedPriority by rememberSaveable { mutableStateOf(taskDetailsUiState.taskDetails.priority) }
+
+        // 原始卡片顯示
         TaskDetails(
-            task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
+            task = taskDetailsUiState.taskDetails.toTask(),
+            modifier = Modifier.fillMaxWidth()
         )
+
+        // 刪除按鈕
         OutlinedButton(
             onClick = { deleteConfirmationRequired = true },
             shape = MaterialTheme.shapes.small,
             modifier = Modifier.fillMaxWidth(),
             colors = ButtonDefaults.outlinedButtonColors(
-                containerColor = MaterialTheme.colorScheme.primaryContainer  // 你可以換成其他顏色，例如 MaterialTheme.colorScheme.primary
+                containerColor = MaterialTheme.colorScheme.primaryContainer
             )
-
         ) {
             Text(stringResource(R.string.delete))
         }
 
-
-        OutlinedButton(
-            onClick = {  },//TODO
-            shape = MaterialTheme.shapes.small,
+        // Edit / Cancel & Confirm
+        Row(
+            horizontalArrangement = Arrangement.spacedBy(8.dp),
             modifier = Modifier.fillMaxWidth()
         ) {
-            Text(stringResource(R.string.edit))
+            if (!editable) {
+                OutlinedButton(onClick = { editable = true }, modifier = Modifier.weight(1f)) {
+                    Text(stringResource(R.string.edit))
+                }
+            } else {
+                OutlinedButton(onClick = {
+                    // rollback
+                    editable = false
+                    inputText = taskDetailsUiState.taskDetails.name
+                    selectedPriority = taskDetailsUiState.taskDetails.priority
+                }, modifier = Modifier.weight(1f)) {
+                    Text(stringResource(R.string.cancel))
+                }
+                OutlinedButton(onClick = {
+                    editable = false
+                    onConfirm(inputText, selectedPriority)
+                }, modifier = Modifier.weight(1f)) {
+                    Text(stringResource(R.string.confirm))
+                }
+            }
         }
 
-
-
+        // 編輯輸入框
         OutlinedTextField(
             value = inputText,
             onValueChange = { inputText = it },
-            label = { Text("輸入任務名稱") },
+            label = { Text(stringResource(R.string.task)) },
             colors = OutlinedTextFieldDefaults.colors(
                 focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
                 unfocusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
-                disabledContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+                disabledContainerColor = MaterialTheme.colorScheme.secondaryContainer
             ),
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(top = 16.dp),
             enabled = editable
         )
+
+        // Priority RadioGroup
         val priorities = listOf("High", "Medium", "Low")
-        Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+        Row(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalArrangement = Arrangement.SpaceBetween
+        ) {
             priorities.forEach { level ->
                 Row(
                     verticalAlignment = Alignment.CenterVertically,
@@ -213,41 +226,55 @@ private fun TaskDetailsBody(
                 ) {
                     RadioButton(
                         selected = (selectedPriority == level),
-                        onClick = null, // 整個 Row 都可點
+                        onClick = null,
                         enabled = editable
                     )
                     Spacer(modifier = Modifier.width(dimensionResource(id = R.dimen.padding_small)))
                     Text(
                         level,
                         color = when (level.lowercase()) {
-                            "high" -> MaterialTheme.colorScheme.error       // High：紅
-                            "medium" -> Color(0xFFFBC02D)                  // Medium：黃
-                            else -> Color(0xFF388E3C)                      // Low：綠
-                        }
+                            "high" -> MaterialTheme.colorScheme.error
+                            "medium" -> Color(0xFFFBC02D)
+                            else -> Color(0xFF388E3C)
+                        },
+                        fontWeight = FontWeight.Bold
                     )
                 }
             }
         }
+
+        // 刪除確認對話框
         if (deleteConfirmationRequired) {
-            DeleteConfirmationDialog(
-                onDeleteConfirm = {
-                    deleteConfirmationRequired = false
-                    onDelete()
+            AlertDialog(
+                onDismissRequest = { /* no-op */ },
+                title = { Text(stringResource(R.string.attention)) },
+                text = { Text(stringResource(R.string.delete_question)) },
+                confirmButton = {
+                    TextButton(onClick = {
+                        deleteConfirmationRequired = false
+                        onDelete()
+                    }) {
+                        Text(stringResource(R.string.yes))
+                    }
                 },
-                onDeleteCancel = { deleteConfirmationRequired = false },
-                modifier = Modifier.padding(dimensionResource(id = R.dimen.padding_medium))
+                dismissButton = {
+                    TextButton(onClick = { deleteConfirmationRequired = false }) {
+                        Text(stringResource(R.string.no))
+                    }
+                }
             )
         }
     }
 }
 
-
 @Composable
 fun TaskDetails(
-    task: Task, modifier: Modifier = Modifier
+    task: Task,
+    modifier: Modifier = Modifier
 ) {
     Card(
-        modifier = modifier, colors = CardDefaults.cardColors(
+        modifier = modifier,
+        colors = CardDefaults.cardColors(
             containerColor = MaterialTheme.colorScheme.primaryContainer,
             contentColor = MaterialTheme.colorScheme.onPrimaryContainer
         )
@@ -258,69 +285,36 @@ fun TaskDetails(
                 .padding(dimensionResource(id = R.dimen.padding_medium)),
             verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
         ) {
-            TaskDetailsRow(
-                labelResID = R.string.task,
-                taskDetail = task.name,
-                modifier = Modifier.padding(
-                    horizontal = dimensionResource(
-                        id = R.dimen
-                            .padding_medium
-                    )
-                )
-            )
-            TaskDetailsRow(
-                labelResID = R.string.priority_level_show,
-                taskDetail = task.priority,
-                modifier = Modifier.padding(
-                    horizontal = dimensionResource(
-                        id = R.dimen
-                            .padding_medium
-                    )
-                )
-            )
-
+            TaskDetailsRow(R.string.task, task.name)
+            TaskDetailsRow(R.string.priority_level_show, task.priority)
         }
-
     }
 }
 
 @Composable
 private fun TaskDetailsRow(
-    @StringRes labelResID: Int, taskDetail: String, modifier: Modifier = Modifier
+    @StringRes labelResID: Int,
+    taskDetail: String
 ) {
-    Row(modifier = modifier) {
+    Row(
+        modifier = Modifier.padding(horizontal = dimensionResource(id = R.dimen.padding_medium))
+    ) {
         Text(text = stringResource(labelResID))
         Spacer(modifier = Modifier.weight(1f))
         Text(text = taskDetail, fontWeight = FontWeight.Bold)
     }
 }
 
-@Composable
-private fun DeleteConfirmationDialog(
-    onDeleteConfirm: () -> Unit, onDeleteCancel: () -> Unit, modifier: Modifier = Modifier
-) {
-    AlertDialog(onDismissRequest = { /* Do nothing */ },
-        title = { Text(stringResource(R.string.attention)) },
-        text = { Text(stringResource(R.string.delete_question)) },
-        modifier = modifier,
-        dismissButton = {
-            TextButton(onClick = onDeleteCancel) {
-                Text(text = stringResource(R.string.no))
-            }
-        },
-        confirmButton = {
-            TextButton(onClick = onDeleteConfirm) {
-                Text(text = stringResource(R.string.yes))
-            }
-        })
-}
-
 @Preview(showBackground = true)
 @Composable
 fun TaskDetailsScreenPreview() {
     InventoryTheme {
-        TaskDetailsBody(TaskDetailsUiState(
-            taskDetails = TaskDetails(1, "Task1", "High")
-        ), onSellTask = {}, onDelete = {})
+        TaskDetailsBody(
+            taskDetailsUiState = TaskDetailsUiState(
+                taskDetails = TaskDetails(1, "示範任務", "Medium")
+            ),
+            onDelete = { /* no-op */ },
+            onConfirm = { _, _ -> /* no-op */ }
+        )
     }
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
index 575b2ace..125c8025 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
@@ -1,19 +1,3 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package com.example.inventory.ui.task
 
 import androidx.lifecycle.SavedStateHandle
@@ -28,44 +12,52 @@ import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
 
 /**
- * ViewModel to retrieve, update and delete an item from the [TasksRepository]'s data source.
+ * ViewModel to retrieve, update and delete a task from the [TasksRepository]'s data source.
  */
 class TaskDetailsViewModel(
     savedStateHandle: SavedStateHandle,
-    private val tasksRepository: TasksRepository,
+    private val tasksRepository: TasksRepository
 ) : ViewModel() {
 
-    private val itemId: Int = checkNotNull(savedStateHandle[TaskDetailsDestination.taskIdArg])
+    // 從 navigation arguments 拿到要顯示的 taskId
+    private val taskId: Int = checkNotNull(savedStateHandle[TaskDetailsDestination.taskIdArg])
 
     /**
-     * Holds the item details ui state. The data is retrieved from [TasksRepository] and mapped to
-     * the UI state.
+     * uiState 會隨著資料庫中該筆 task 更新自動推送最新值
      */
     val uiState: StateFlow<TaskDetailsUiState> =
-        tasksRepository.getTaskStream(itemId)
-            .filterNotNull()
-            .map {
-                TaskDetailsUiState(taskDetails = it.toItemDetails())
-            }.stateIn(
+        tasksRepository
+            .getTaskStream(taskId)                // 回傳 Flow<TaskEntity?>
+            .filterNotNull()                      // 避免 null
+            .map { entity ->
+                // Map Entity -> UI state
+                TaskDetailsUiState(taskDetails = entity.toItemDetails())
+            }
+            .stateIn(
                 scope = viewModelScope,
                 started = SharingStarted.WhileSubscribed(TIMEOUT_MILLIS),
                 initialValue = TaskDetailsUiState()
             )
 
     /**
-     * Reduces the item quantity by one and update the [TasksRepository]'s data source.
+     * 刪除該 task
      */
-    fun reduceQuantityByOne() {
+    fun deleteTask() {
         viewModelScope.launch {
-            val currentItem = uiState.value.taskDetails.toTask()
+            tasksRepository.deleteTask(uiState.value.taskDetails.toTask())
         }
     }
 
     /**
-     * Deletes the item from the [TasksRepository]'s data source.
+     * 更新該 task 的 name 與 priority
      */
-    suspend fun deleteTask() {
-        tasksRepository.deleteTask(uiState.value.taskDetails.toTask())
+    fun updateTask(name: String, priority: String) {
+        viewModelScope.launch {
+            // 構造一個新的 TaskData 並交給 repository 更新
+            val updated = uiState.value.taskDetails.copy(name = name, priority = priority)
+            tasksRepository.updateTask(updated.toTask())
+            // 不需要手動刷新，getTaskStream 會自動 emit 最新的資料
+        }
     }
 
     companion object {
@@ -74,8 +66,8 @@ class TaskDetailsViewModel(
 }
 
 /**
- * UI state for ItemDetailsScreen
+ * UI state for TaskDetailsScreen
  */
 data class TaskDetailsUiState(
     val taskDetails: TaskDetails = TaskDetails()
-)
+)
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d271bdb2..5eeb8d99 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -34,4 +34,6 @@
     <string name="sell">Sell</string>
     <string name="yes">Yes</string>
     <string name="required_fields">*required fields</string>
+    <string name="cancel">Cancel</string>
+    <string name="confirm">confirm</string>
 </resources>

From 991be78c42ca91f3318dd6bcc4fd8c332f086be9 Mon Sep 17 00:00:00 2001
From: Max7414 <90671891+Max7414@users.noreply.github.com>
Date: Tue, 13 May 2025 00:49:42 +0800
Subject: [PATCH 26/32] add edit button

---
 .../inventory/ui/task/TaskDetailsScreen.kt     | 18 +++++++++++++++++-
 app/src/main/res/values/strings.xml            |  1 +
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 4997c779..7ff78881 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -34,6 +34,7 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Button
+import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -52,6 +53,7 @@ import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalLayoutDirection
 import androidx.compose.ui.res.dimensionResource
 import androidx.compose.ui.res.stringResource
@@ -148,10 +150,24 @@ private fun TaskDetailsBody(
         TaskDetails(
             task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
         )
+
         OutlinedButton(
-            onClick = { deleteConfirmationRequired = true },
+            onClick = {  },//TODO
             shape = MaterialTheme.shapes.small,
             modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(stringResource(R.string.edit))
+        }
+
+
+        OutlinedButton(
+            onClick = { deleteConfirmationRequired = true },
+            shape = MaterialTheme.shapes.small,
+            modifier = Modifier.fillMaxWidth(),
+            colors = ButtonDefaults.outlinedButtonColors(
+                containerColor = MaterialTheme.colorScheme.primaryContainer  // 你可以換成其他顏色，例如 MaterialTheme.colorScheme.primary
+            )
+
         ) {
             Text(stringResource(R.string.delete))
         }
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 30c3f049..d271bdb2 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -18,6 +18,7 @@
     <string name="attention">Attention</string>
     <string name="back_button">Back</string>
     <string name="delete">Delete</string>
+    <string name="edit">Edit</string>
     <string name="delete_question">Are you sure you want to delete?</string>
     <string name="no_task_description">Oops!\nNo tasks in the lists.\nTap + to add.</string>
     <string name="edit_task_title">Edit Task</string>

From 7233e9f48eeb34eeeb78eebf638ae9fa4d7bd8b2 Mon Sep 17 00:00:00 2001
From: Max7414 <komax0109@gmail.com>
Date: Tue, 13 May 2025 08:49:50 +0800
Subject: [PATCH 27/32] =?UTF-8?q?=E5=A2=9E=E5=8A=A0disabled=E7=9A=84?=
 =?UTF-8?q?=E8=BC=B8=E5=85=A5=E7=AD=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../inventory/ui/task/TaskDetailsScreen.kt    | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index 7ff78881..c395a860 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -28,7 +28,9 @@ import androidx.compose.foundation.layout.calculateStartPadding
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.safeDrawing
+import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.selection.selectable
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Edit
@@ -42,6 +44,9 @@ import androidx.compose.material3.FloatingActionButton
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.OutlinedTextFieldDefaults
+import androidx.compose.material3.RadioButton
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
@@ -52,13 +57,16 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalLayoutDirection
 import androidx.compose.ui.res.dimensionResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.Role
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.example.inventory.InventoryTopAppBar
 import com.example.inventory.R
@@ -147,6 +155,9 @@ private fun TaskDetailsBody(
         verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
     ) {
         var deleteConfirmationRequired by rememberSaveable { mutableStateOf(false) }
+        var inputText by rememberSaveable { mutableStateOf(taskDetailsUiState.taskDetails.name) }
+        var editable by rememberSaveable { mutableStateOf(false) }           // 編輯開關
+        var selectedPriority by rememberSaveable { mutableStateOf(taskDetailsUiState.taskDetails.priority) }
         TaskDetails(
             task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
         )
@@ -171,6 +182,51 @@ private fun TaskDetailsBody(
         ) {
             Text(stringResource(R.string.delete))
         }
+
+        OutlinedTextField(
+            value = inputText,
+            onValueChange = { inputText = it },
+            label = { Text("輸入任務名稱") },
+            colors = OutlinedTextFieldDefaults.colors(
+                focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+                unfocusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+                disabledContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+            ),
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(top = 16.dp),
+            enabled = editable
+        )
+        val priorities = listOf("High", "Medium", "Low")
+        Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+            priorities.forEach { level ->
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    modifier = Modifier
+                        .weight(1f)
+                        .selectable(
+                            selected = (selectedPriority == level),
+                            onClick = { if (editable) selectedPriority = level },
+                            role = Role.RadioButton
+                        )
+                ) {
+                    RadioButton(
+                        selected = (selectedPriority == level),
+                        onClick = null, // 整個 Row 都可點
+                        enabled = editable
+                    )
+                    Spacer(modifier = Modifier.width(dimensionResource(id = R.dimen.padding_small)))
+                    Text(
+                        level,
+                        color = when (level.lowercase()) {
+                            "high" -> MaterialTheme.colorScheme.error       // High：紅
+                            "medium" -> Color(0xFFFBC02D)                  // Medium：黃
+                            else -> Color(0xFF388E3C)                      // Low：綠
+                        }
+                    )
+                }
+            }
+        }
         if (deleteConfirmationRequired) {
             DeleteConfirmationDialog(
                 onDeleteConfirm = {

From adee19680f75decbb42c3604b7a48ad954699617 Mon Sep 17 00:00:00 2001
From: Max7414 <komax0109@gmail.com>
Date: Tue, 13 May 2025 08:51:04 +0800
Subject: [PATCH 28/32] =?UTF-8?q?=E5=88=AA=E9=99=A4=E6=8C=89=E9=88=95?=
 =?UTF-8?q?=E4=BD=8D=E7=BD=AE=E8=AA=BF=E6=8F=9B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../inventory/ui/task/TaskDetailsScreen.kt    | 21 ++++++++++---------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index c395a860..d734ed08 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -161,16 +161,6 @@ private fun TaskDetailsBody(
         TaskDetails(
             task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
         )
-
-        OutlinedButton(
-            onClick = {  },//TODO
-            shape = MaterialTheme.shapes.small,
-            modifier = Modifier.fillMaxWidth()
-        ) {
-            Text(stringResource(R.string.edit))
-        }
-
-
         OutlinedButton(
             onClick = { deleteConfirmationRequired = true },
             shape = MaterialTheme.shapes.small,
@@ -183,6 +173,17 @@ private fun TaskDetailsBody(
             Text(stringResource(R.string.delete))
         }
 
+
+        OutlinedButton(
+            onClick = {  },//TODO
+            shape = MaterialTheme.shapes.small,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text(stringResource(R.string.edit))
+        }
+
+
+
         OutlinedTextField(
             value = inputText,
             onValueChange = { inputText = it },

From d9b0ded39dae447a8d191fcc3fc3d90fae7672e4 Mon Sep 17 00:00:00 2001
From: Max7414 <komax0109@gmail.com>
Date: Tue, 13 May 2025 09:29:41 +0800
Subject: [PATCH 29/32] =?UTF-8?q?=E5=AE=8C=E6=88=90=E7=B7=A8=E8=BC=AF?=
 =?UTF-8?q?=E5=8A=9F=E8=83=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../inventory/ui/task/TaskDetailsScreen.kt    | 198 +++++++++---------
 .../inventory/ui/task/TaskDetailsViewModel.kt |  60 +++---
 app/src/main/res/values/strings.xml           |   2 +
 3 files changed, 124 insertions(+), 136 deletions(-)

diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
index d734ed08..db6faffc 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsScreen.kt
@@ -1,19 +1,4 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
+// TaskDetailsScreen.kt
 package com.example.inventory.ui.task
 
 import androidx.annotation.StringRes
@@ -35,7 +20,6 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
@@ -91,8 +75,9 @@ fun TaskDetailsScreen(
     modifier: Modifier = Modifier,
     viewModel: TaskDetailsViewModel = viewModel(factory = AppViewModelProvider.Factory)
 ) {
-    val uiState = viewModel.uiState.collectAsState()
+    val uiState by viewModel.uiState.collectAsState()
     val coroutineScope = rememberCoroutineScope()
+
     Scaffold(
         topBar = {
             InventoryTopAppBar(
@@ -103,7 +88,7 @@ fun TaskDetailsScreen(
         },
         floatingActionButton = {
             FloatingActionButton(
-                onClick = { navigateToEditTask(uiState.value.taskDetails.id) },
+                onClick = { navigateToEditTask(uiState.taskDetails.id) },
                 shape = MaterialTheme.shapes.medium,
                 modifier = Modifier
                     .padding(
@@ -120,18 +105,19 @@ fun TaskDetailsScreen(
         modifier = modifier,
     ) { innerPadding ->
         TaskDetailsBody(
-            taskDetailsUiState = uiState.value,
-            onSellTask = { viewModel.reduceQuantityByOne() },
+            taskDetailsUiState = uiState,
             onDelete = {
-                // Note: If the user rotates the screen very fast, the operation may get cancelled
-                // and the task may not be deleted from the Database. This is because when config
-                // change occurs, the Activity will be recreated and the rememberCoroutineScope will
-                // be cancelled - since the scope is bound to composition.
                 coroutineScope.launch {
                     viewModel.deleteTask()
                     navigateBack()
                 }
             },
+            onConfirm = { newName, newPriority ->
+                viewModel.updateTask(
+                    name = newName,
+                    priority = newPriority
+                )
+            },
             modifier = Modifier
                 .padding(
                     start = innerPadding.calculateStartPadding(LocalLayoutDirection.current),
@@ -146,60 +132,87 @@ fun TaskDetailsScreen(
 @Composable
 private fun TaskDetailsBody(
     taskDetailsUiState: TaskDetailsUiState,
-    onSellTask: () -> Unit,
     onDelete: () -> Unit,
+    onConfirm: (String, String) -> Unit,
     modifier: Modifier = Modifier
 ) {
     Column(
         modifier = modifier.padding(dimensionResource(id = R.dimen.padding_medium)),
         verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
     ) {
+        // 狀態
         var deleteConfirmationRequired by rememberSaveable { mutableStateOf(false) }
+        var editable by rememberSaveable { mutableStateOf(false) }
         var inputText by rememberSaveable { mutableStateOf(taskDetailsUiState.taskDetails.name) }
-        var editable by rememberSaveable { mutableStateOf(false) }           // 編輯開關
         var selectedPriority by rememberSaveable { mutableStateOf(taskDetailsUiState.taskDetails.priority) }
+
+        // 原始卡片顯示
         TaskDetails(
-            task = taskDetailsUiState.taskDetails.toTask(), modifier = Modifier.fillMaxWidth()
+            task = taskDetailsUiState.taskDetails.toTask(),
+            modifier = Modifier.fillMaxWidth()
         )
+
+        // 刪除按鈕
         OutlinedButton(
             onClick = { deleteConfirmationRequired = true },
             shape = MaterialTheme.shapes.small,
             modifier = Modifier.fillMaxWidth(),
             colors = ButtonDefaults.outlinedButtonColors(
-                containerColor = MaterialTheme.colorScheme.primaryContainer  // 你可以換成其他顏色，例如 MaterialTheme.colorScheme.primary
+                containerColor = MaterialTheme.colorScheme.primaryContainer
             )
-
         ) {
             Text(stringResource(R.string.delete))
         }
 
-
-        OutlinedButton(
-            onClick = {  },//TODO
-            shape = MaterialTheme.shapes.small,
+        // Edit / Cancel & Confirm
+        Row(
+            horizontalArrangement = Arrangement.spacedBy(8.dp),
             modifier = Modifier.fillMaxWidth()
         ) {
-            Text(stringResource(R.string.edit))
+            if (!editable) {
+                OutlinedButton(onClick = { editable = true }, modifier = Modifier.weight(1f)) {
+                    Text(stringResource(R.string.edit))
+                }
+            } else {
+                OutlinedButton(onClick = {
+                    // rollback
+                    editable = false
+                    inputText = taskDetailsUiState.taskDetails.name
+                    selectedPriority = taskDetailsUiState.taskDetails.priority
+                }, modifier = Modifier.weight(1f)) {
+                    Text(stringResource(R.string.cancel))
+                }
+                OutlinedButton(onClick = {
+                    editable = false
+                    onConfirm(inputText, selectedPriority)
+                }, modifier = Modifier.weight(1f)) {
+                    Text(stringResource(R.string.confirm))
+                }
+            }
         }
 
-
-
+        // 編輯輸入框
         OutlinedTextField(
             value = inputText,
             onValueChange = { inputText = it },
-            label = { Text("輸入任務名稱") },
+            label = { Text(stringResource(R.string.task)) },
             colors = OutlinedTextFieldDefaults.colors(
                 focusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
                 unfocusedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
-                disabledContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+                disabledContainerColor = MaterialTheme.colorScheme.secondaryContainer
             ),
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(top = 16.dp),
             enabled = editable
         )
+
+        // Priority RadioGroup
         val priorities = listOf("High", "Medium", "Low")
-        Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+        Row(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalArrangement = Arrangement.SpaceBetween
+        ) {
             priorities.forEach { level ->
                 Row(
                     verticalAlignment = Alignment.CenterVertically,
@@ -213,41 +226,55 @@ private fun TaskDetailsBody(
                 ) {
                     RadioButton(
                         selected = (selectedPriority == level),
-                        onClick = null, // 整個 Row 都可點
+                        onClick = null,
                         enabled = editable
                     )
                     Spacer(modifier = Modifier.width(dimensionResource(id = R.dimen.padding_small)))
                     Text(
                         level,
                         color = when (level.lowercase()) {
-                            "high" -> MaterialTheme.colorScheme.error       // High：紅
-                            "medium" -> Color(0xFFFBC02D)                  // Medium：黃
-                            else -> Color(0xFF388E3C)                      // Low：綠
-                        }
+                            "high" -> MaterialTheme.colorScheme.error
+                            "medium" -> Color(0xFFFBC02D)
+                            else -> Color(0xFF388E3C)
+                        },
+                        fontWeight = FontWeight.Bold
                     )
                 }
             }
         }
+
+        // 刪除確認對話框
         if (deleteConfirmationRequired) {
-            DeleteConfirmationDialog(
-                onDeleteConfirm = {
-                    deleteConfirmationRequired = false
-                    onDelete()
+            AlertDialog(
+                onDismissRequest = { /* no-op */ },
+                title = { Text(stringResource(R.string.attention)) },
+                text = { Text(stringResource(R.string.delete_question)) },
+                confirmButton = {
+                    TextButton(onClick = {
+                        deleteConfirmationRequired = false
+                        onDelete()
+                    }) {
+                        Text(stringResource(R.string.yes))
+                    }
                 },
-                onDeleteCancel = { deleteConfirmationRequired = false },
-                modifier = Modifier.padding(dimensionResource(id = R.dimen.padding_medium))
+                dismissButton = {
+                    TextButton(onClick = { deleteConfirmationRequired = false }) {
+                        Text(stringResource(R.string.no))
+                    }
+                }
             )
         }
     }
 }
 
-
 @Composable
 fun TaskDetails(
-    task: Task, modifier: Modifier = Modifier
+    task: Task,
+    modifier: Modifier = Modifier
 ) {
     Card(
-        modifier = modifier, colors = CardDefaults.cardColors(
+        modifier = modifier,
+        colors = CardDefaults.cardColors(
             containerColor = MaterialTheme.colorScheme.primaryContainer,
             contentColor = MaterialTheme.colorScheme.onPrimaryContainer
         )
@@ -258,69 +285,36 @@ fun TaskDetails(
                 .padding(dimensionResource(id = R.dimen.padding_medium)),
             verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_medium))
         ) {
-            TaskDetailsRow(
-                labelResID = R.string.task,
-                taskDetail = task.name,
-                modifier = Modifier.padding(
-                    horizontal = dimensionResource(
-                        id = R.dimen
-                            .padding_medium
-                    )
-                )
-            )
-            TaskDetailsRow(
-                labelResID = R.string.priority_level_show,
-                taskDetail = task.priority,
-                modifier = Modifier.padding(
-                    horizontal = dimensionResource(
-                        id = R.dimen
-                            .padding_medium
-                    )
-                )
-            )
-
+            TaskDetailsRow(R.string.task, task.name)
+            TaskDetailsRow(R.string.priority_level_show, task.priority)
         }
-
     }
 }
 
 @Composable
 private fun TaskDetailsRow(
-    @StringRes labelResID: Int, taskDetail: String, modifier: Modifier = Modifier
+    @StringRes labelResID: Int,
+    taskDetail: String
 ) {
-    Row(modifier = modifier) {
+    Row(
+        modifier = Modifier.padding(horizontal = dimensionResource(id = R.dimen.padding_medium))
+    ) {
         Text(text = stringResource(labelResID))
         Spacer(modifier = Modifier.weight(1f))
         Text(text = taskDetail, fontWeight = FontWeight.Bold)
     }
 }
 
-@Composable
-private fun DeleteConfirmationDialog(
-    onDeleteConfirm: () -> Unit, onDeleteCancel: () -> Unit, modifier: Modifier = Modifier
-) {
-    AlertDialog(onDismissRequest = { /* Do nothing */ },
-        title = { Text(stringResource(R.string.attention)) },
-        text = { Text(stringResource(R.string.delete_question)) },
-        modifier = modifier,
-        dismissButton = {
-            TextButton(onClick = onDeleteCancel) {
-                Text(text = stringResource(R.string.no))
-            }
-        },
-        confirmButton = {
-            TextButton(onClick = onDeleteConfirm) {
-                Text(text = stringResource(R.string.yes))
-            }
-        })
-}
-
 @Preview(showBackground = true)
 @Composable
 fun TaskDetailsScreenPreview() {
     InventoryTheme {
-        TaskDetailsBody(TaskDetailsUiState(
-            taskDetails = TaskDetails(1, "Task1", "High")
-        ), onSellTask = {}, onDelete = {})
+        TaskDetailsBody(
+            taskDetailsUiState = TaskDetailsUiState(
+                taskDetails = TaskDetails(1, "示範任務", "Medium")
+            ),
+            onDelete = { /* no-op */ },
+            onConfirm = { _, _ -> /* no-op */ }
+        )
     }
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
index 575b2ace..125c8025 100644
--- a/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/task/TaskDetailsViewModel.kt
@@ -1,19 +1,3 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package com.example.inventory.ui.task
 
 import androidx.lifecycle.SavedStateHandle
@@ -28,44 +12,52 @@ import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
 
 /**
- * ViewModel to retrieve, update and delete an item from the [TasksRepository]'s data source.
+ * ViewModel to retrieve, update and delete a task from the [TasksRepository]'s data source.
  */
 class TaskDetailsViewModel(
     savedStateHandle: SavedStateHandle,
-    private val tasksRepository: TasksRepository,
+    private val tasksRepository: TasksRepository
 ) : ViewModel() {
 
-    private val itemId: Int = checkNotNull(savedStateHandle[TaskDetailsDestination.taskIdArg])
+    // 從 navigation arguments 拿到要顯示的 taskId
+    private val taskId: Int = checkNotNull(savedStateHandle[TaskDetailsDestination.taskIdArg])
 
     /**
-     * Holds the item details ui state. The data is retrieved from [TasksRepository] and mapped to
-     * the UI state.
+     * uiState 會隨著資料庫中該筆 task 更新自動推送最新值
      */
     val uiState: StateFlow<TaskDetailsUiState> =
-        tasksRepository.getTaskStream(itemId)
-            .filterNotNull()
-            .map {
-                TaskDetailsUiState(taskDetails = it.toItemDetails())
-            }.stateIn(
+        tasksRepository
+            .getTaskStream(taskId)                // 回傳 Flow<TaskEntity?>
+            .filterNotNull()                      // 避免 null
+            .map { entity ->
+                // Map Entity -> UI state
+                TaskDetailsUiState(taskDetails = entity.toItemDetails())
+            }
+            .stateIn(
                 scope = viewModelScope,
                 started = SharingStarted.WhileSubscribed(TIMEOUT_MILLIS),
                 initialValue = TaskDetailsUiState()
             )
 
     /**
-     * Reduces the item quantity by one and update the [TasksRepository]'s data source.
+     * 刪除該 task
      */
-    fun reduceQuantityByOne() {
+    fun deleteTask() {
         viewModelScope.launch {
-            val currentItem = uiState.value.taskDetails.toTask()
+            tasksRepository.deleteTask(uiState.value.taskDetails.toTask())
         }
     }
 
     /**
-     * Deletes the item from the [TasksRepository]'s data source.
+     * 更新該 task 的 name 與 priority
      */
-    suspend fun deleteTask() {
-        tasksRepository.deleteTask(uiState.value.taskDetails.toTask())
+    fun updateTask(name: String, priority: String) {
+        viewModelScope.launch {
+            // 構造一個新的 TaskData 並交給 repository 更新
+            val updated = uiState.value.taskDetails.copy(name = name, priority = priority)
+            tasksRepository.updateTask(updated.toTask())
+            // 不需要手動刷新，getTaskStream 會自動 emit 最新的資料
+        }
     }
 
     companion object {
@@ -74,8 +66,8 @@ class TaskDetailsViewModel(
 }
 
 /**
- * UI state for ItemDetailsScreen
+ * UI state for TaskDetailsScreen
  */
 data class TaskDetailsUiState(
     val taskDetails: TaskDetails = TaskDetails()
-)
+)
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d271bdb2..5eeb8d99 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -34,4 +34,6 @@
     <string name="sell">Sell</string>
     <string name="yes">Yes</string>
     <string name="required_fields">*required fields</string>
+    <string name="cancel">Cancel</string>
+    <string name="confirm">confirm</string>
 </resources>

From e0e9c3c49af386a2410b68741ce4631fe28ab555 Mon Sep 17 00:00:00 2001
From: Max7414 <komax0109@gmail.com>
Date: Tue, 13 May 2025 11:48:10 +0800
Subject: [PATCH 30/32] =?UTF-8?q?=E5=8A=A0=E5=85=A5swipe=E7=9A=84=E4=BE=9D?=
 =?UTF-8?q?=E8=B3=B4=20=E5=8A=A0=E5=85=A5=E6=BB=91=E5=8B=95=E5=88=AA?=
 =?UTF-8?q?=E9=99=A4=E5=8A=9F=E8=83=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/build.gradle.kts                          |   4 +-
 .../example/inventory/ui/home/HomeScreen.kt   | 201 +++++++++---------
 .../inventory/ui/home/HomeViewModel.kt        |  47 +---
 3 files changed, 109 insertions(+), 143 deletions(-)

diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index b9008c76..3b122b29 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -75,7 +75,9 @@ dependencies {
     implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.8.7")
     implementation("androidx.lifecycle:lifecycle-viewmodel-compose:2.8.7")
     implementation("androidx.navigation:navigation-compose:2.8.4")
-
+    implementation(platform("androidx.compose:compose-bom:2025.02.00"))
+    implementation("androidx.compose.material3:material3")
+    implementation("androidx.compose.material:material:1.8.1")
     //Room
     implementation("androidx.room:room-runtime:${rootProject.extra["room_version"]}")
     implementation("androidx.core:core-ktx:1.15.0")
diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
index adccf2ee..5128ed1e 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeScreen.kt
@@ -1,50 +1,22 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package com.example.inventory.ui.home
 
+import androidx.compose.animation.animateColorAsState
+import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.PaddingValues
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
-import androidx.compose.foundation.layout.calculateEndPadding
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.safeDrawing
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
+import androidx.compose.material.DismissDirection
+import androidx.compose.material.DismissState
+import androidx.compose.material.DismissValue
+import androidx.compose.material.ExperimentalMaterialApi
+import androidx.compose.material.SwipeToDismiss
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Add
-import androidx.compose.material3.Card
-import androidx.compose.material3.CardDefaults
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.FloatingActionButton
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Scaffold
-import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBarDefaults
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.collectAsState
-import androidx.compose.runtime.getValue
+import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material.rememberDismissState
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -62,15 +34,13 @@ import com.example.inventory.data.Task
 import com.example.inventory.ui.AppViewModelProvider
 import com.example.inventory.ui.navigation.NavigationDestination
 import com.example.inventory.ui.theme.InventoryTheme
+import kotlinx.coroutines.launch
 
 object HomeDestination : NavigationDestination {
     override val route = "home"
     override val titleRes = R.string.app_name
 }
 
-/**
- * Entry route for Home screen
- */
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun HomeScreen(
@@ -82,6 +52,9 @@ fun HomeScreen(
     val homeUiState by viewModel.homeUiState.collectAsState()
     val scrollBehavior = TopAppBarDefaults.enterAlwaysScrollBehavior()
 
+    val snackbarHostState = remember { SnackbarHostState() }
+    val scope = rememberCoroutineScope()
+
     Scaffold(
         modifier = modifier.nestedScroll(scrollBehavior.nestedScrollConnection),
         topBar = {
@@ -91,6 +64,7 @@ fun HomeScreen(
                 scrollBehavior = scrollBehavior
             )
         },
+        snackbarHost = { SnackbarHost(snackbarHostState) },
         floatingActionButton = {
             FloatingActionButton(
                 onClick = navigateToItemEntry,
@@ -101,17 +75,23 @@ fun HomeScreen(
                             .calculateEndPadding(LocalLayoutDirection.current)
                     )
             ) {
-                Icon(
-                    imageVector = Icons.Default.Add,
-                    contentDescription = stringResource(R.string.task_entry_title)
-                )
+                Icon(Icons.Default.Add, contentDescription = stringResource(R.string.task_entry_title))
             }
         },
     ) { innerPadding ->
         HomeBody(
             taskList = homeUiState.taskList,
             onTaskClick = navigateToItemUpdate,
-            modifier = modifier.fillMaxSize(),
+            onDelete = { task ->
+                viewModel.delete(task)
+                scope.launch {
+                    val res = snackbarHostState.showSnackbar(
+                        "已刪除 ${task.name}", actionLabel = "復原", duration = SnackbarDuration.Short
+                    )
+                    if (res == SnackbarResult.ActionPerformed) viewModel.insert(task)
+                }
+            },
+            modifier = Modifier.fillMaxSize(),
             contentPadding = innerPadding,
         )
     }
@@ -121,24 +101,23 @@ fun HomeScreen(
 private fun HomeBody(
     taskList: List<Task>,
     onTaskClick: (Int) -> Unit,
+    onDelete: (Task) -> Unit,
     modifier: Modifier = Modifier,
     contentPadding: PaddingValues = PaddingValues(0.dp),
 ) {
-    Column(
-        horizontalAlignment = Alignment.CenterHorizontally,
-        modifier = modifier,
-    ) {
+    Column(horizontalAlignment = Alignment.CenterHorizontally, modifier = modifier) {
         if (taskList.isEmpty()) {
             Text(
-                text = stringResource(R.string.no_task_description),
+                stringResource(R.string.no_task_description),
                 textAlign = TextAlign.Center,
                 style = MaterialTheme.typography.titleLarge,
-                modifier = Modifier.padding(contentPadding),
+                modifier = Modifier.padding(contentPadding)
             )
         } else {
             InventoryList(
                 taskList = taskList,
                 onItemClick = { onTaskClick(it.id) },
+                onDelete = onDelete,
                 contentPadding = contentPadding,
                 modifier = Modifier.padding(horizontal = dimensionResource(id = R.dimen.padding_small))
             )
@@ -150,55 +129,88 @@ private fun HomeBody(
 private fun InventoryList(
     taskList: List<Task>,
     onItemClick: (Task) -> Unit,
+    onDelete: (Task) -> Unit,
     contentPadding: PaddingValues,
     modifier: Modifier = Modifier
 ) {
-    LazyColumn(
-        modifier = modifier,
-        contentPadding = contentPadding
-    ) {
-        items(items = taskList, key = { it.id }) { item ->
-            InventoryItem(task = item,
-                modifier = Modifier
-                    .padding(dimensionResource(id = R.dimen.padding_small))
-                    .clickable { onItemClick(item) })
+    LazyColumn(modifier = modifier, contentPadding = contentPadding) {
+        items(taskList, key = { it.id }) { task ->
+            DismissibleTask(
+                task = task,
+                onDelete = onDelete,
+                onClick = onItemClick,
+                modifier = Modifier.padding(dimensionResource(id = R.dimen.padding_small))
+            )
         }
     }
 }
 
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalMaterialApi::class)
 @Composable
-private fun InventoryItem(
-    task: Task, modifier: Modifier = Modifier
+fun DismissibleTask(
+    task: Task,
+    onDelete: (Task) -> Unit,
+    onClick: (Task) -> Unit,
+    modifier: Modifier = Modifier
 ) {
+    val dismissState = rememberDismissState(confirmStateChange = { newState: DismissValue ->
+        if (newState == DismissValue.DismissedToEnd || newState == DismissValue.DismissedToStart) {
+            onDelete(task)
+            true
+        } else false
+    })
+
+    SwipeToDismiss(
+        state = dismissState,
+        background = { SwipeBackground(dismissState) },
+        dismissContent = {
+            InventoryItem(task, modifier.clickable { onClick(task) })
+        }
+    )
+}
+
+@OptIn(ExperimentalMaterialApi::class)
+@Composable
+private fun SwipeBackground(state: DismissState) {
+    val bgColor by animateColorAsState(
+        if (state.targetValue == DismissValue.Default) MaterialTheme.colorScheme.surfaceVariant
+        else MaterialTheme.colorScheme.errorContainer
+    )
+    val alignment = when (state.dismissDirection) {
+        DismissDirection.StartToEnd -> Alignment.CenterStart
+        DismissDirection.EndToStart -> Alignment.CenterEnd
+        else -> Alignment.Center
+    }
+    Box(
+        Modifier.fillMaxWidth().height(64.dp).background(bgColor).padding(horizontal = 20.dp),
+        contentAlignment = alignment
+    ) {
+        Icon(Icons.Default.Delete, contentDescription = null,
+            tint = MaterialTheme.colorScheme.onErrorContainer)
+    }
+}
+
+@Composable
+private fun InventoryItem(task: Task, modifier: Modifier = Modifier) {
     val cardColor = when (task.priority.lowercase()) {
         "high" -> MaterialTheme.colorScheme.errorContainer
         "medium" -> Color(0xFFFFF9C4)
         "low" -> Color(0xFFC8E6C9)
         else -> MaterialTheme.colorScheme.surface
     }
-
     Card(
-        modifier = modifier,
-        elevation = CardDefaults.cardElevation(defaultElevation = 2.dp),
+        modifier,
+        elevation = CardDefaults.cardElevation(2.dp),
         colors = CardDefaults.cardColors(containerColor = cardColor)
     ) {
         Column(
-            modifier = Modifier.padding(dimensionResource(id = R.dimen.padding_large)),
+            Modifier.padding(dimensionResource(id = R.dimen.padding_large)),
             verticalArrangement = Arrangement.spacedBy(dimensionResource(id = R.dimen.padding_small))
         ) {
-            Row(
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Text(
-                    text = task.name,
-                    style = MaterialTheme.typography.titleLarge,
-                )
+            Row(Modifier.fillMaxWidth()) {
+                Text(task.name, style = MaterialTheme.typography.titleLarge)
                 Spacer(Modifier.weight(1f))
-
-                Text(
-                    text = stringResource(R.string.in_stock, task.priority),
-                    style = MaterialTheme.typography.titleMedium
-                )
+                Text(stringResource(R.string.in_stock, task.priority), style = MaterialTheme.typography.titleMedium)
             }
         }
     }
@@ -206,28 +218,11 @@ private fun InventoryItem(
 
 @Preview(showBackground = true)
 @Composable
-fun HomeBodyPreview() {
-    InventoryTheme {
-        HomeBody(listOf(
-            Task(1, "Task1", "High"), Task(2, "Task2", "Medium"), Task(3, "Task3", "Low")
-        ), onTaskClick = {})
-    }
-}
-
-@Preview(showBackground = true)
-@Composable
-fun HomeBodyEmptyListPreview() {
+fun PreviewHomeBody() {
     InventoryTheme {
-        HomeBody(listOf(), onTaskClick = {})
-    }
-}
-
-@Preview(showBackground = true)
-@Composable
-fun InventoryItemPreview() {
-    InventoryTheme {
-        InventoryItem(
-            Task(1, "Task1", "Medium"),
+        HomeBody(
+            listOf(Task(1, "Task1", "High"), Task(2, "Task2", "Medium"), Task(3, "Task3", "Low")),
+            onTaskClick = {}, onDelete = {}
         )
     }
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt b/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt
index 9ed7f17a..e68678dc 100644
--- a/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt
+++ b/app/src/main/java/com/example/inventory/ui/home/HomeViewModel.kt
@@ -1,19 +1,3 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package com.example.inventory.ui.home
 
 import androidx.lifecycle.ViewModel
@@ -24,30 +8,15 @@ import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.launch
 
-/**
- * ViewModel to retrieve all items in the Room database.
- */
-class HomeViewModel(tasksRepository: TasksRepository) : ViewModel() {
-
-    /**
-     * Holds home ui state. The list of items are retrieved from [TasksRepository] and mapped to
-     * [HomeUiState]
-     */
-    val homeUiState: StateFlow<HomeUiState> =
-        tasksRepository.getAllTasksStream().map { HomeUiState(it) }
-            .stateIn(
-                scope = viewModelScope,
-                started = SharingStarted.WhileSubscribed(TIMEOUT_MILLIS),
-                initialValue = HomeUiState()
-            )
+class HomeViewModel(private val repository: TasksRepository) : ViewModel() {
+    val homeUiState: StateFlow<HomeUiState> = repository.getAllTasksStream()
+        .map(::HomeUiState)
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), HomeUiState())
 
-    companion object {
-        private const val TIMEOUT_MILLIS = 5_000L
-    }
+    fun delete(task: Task) = viewModelScope.launch { repository.deleteTask(task) }
+    fun insert(task: Task) = viewModelScope.launch { repository.insertTask(task) }
 }
 
-/**
- * Ui State for HomeScreen
- */
-data class HomeUiState(val taskList: List<Task> = listOf())
+data class HomeUiState(val taskList: List<Task> = emptyList())
\ No newline at end of file

From e83b626e09358235be1474a5731db9e0fc86f78d Mon Sep 17 00:00:00 2001
From: Max7414 <komax0109@gmail.com>
Date: Wed, 14 May 2025 13:50:41 +0800
Subject: [PATCH 31/32] =?UTF-8?q?=E5=A2=9E=E5=8A=A0readme.md?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 90 +++++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 71 insertions(+), 19 deletions(-)

diff --git a/README.md b/README.md
index fbaa35b6..35ac8962 100644
--- a/README.md
+++ b/README.md
@@ -1,29 +1,81 @@
-Inventory app
+To Do List app
 ==================================
 
-Solution code for Android Basics with Compose.
 
-Introduction
+
+問題一
 ------------
 
-This app is an Inventory tracking app. Demos how to add, update, sell, and delete items from the local database.
-This app demonstrated the use of Android Jetpack component [Room](https://developer.android.com/training/data-storage/room) database.
-The app also leverages [ViewModel](https://developer.android.com/topic/libraries/architecture/viewmodel),
-[Flow](https://developer.android.com/kotlin/flow),
-and [Navigation](https://developer.android.com/topic/libraries/architecture/navigation/).
+*clone下來的存貨APP無法開啟* 
 
-Pre-requisites
---------------
+## 解決方法
+
+更改虛擬機的版本以及系統
+
+
+
+## 問題二
+
+*變數 函式名 檔案名在重構的過程中有許多問題 或是在修改後不能使用*
+
+## 解決方法
+
+用Git進行版本控制 在每個重大改變前先commit
+
+
+
+## 問題三
+
+*修改 Enity後程式運行會崩潰* 
+
+## 解決方法
+
+查看log cat 找到崩潰原因
+
+```kotlin
+android.database.sqlite.SQLiteException: […]
+no such column: priority (code 1 SQLITE_ERROR):
+ , while compiling: SELECT * FROM tasks ORDER BY name ASC
+```
 
-You need to know:
-- How to create and use composables.
-- How to navigate between composables, and pass data between them.
-- How to use architecture components including ViewModel, Flow, StateFlow and StateUi.
-- How to use coroutines for long-running tasks.
-- SQLite database and the SQLite query language
+詢問ChatGPT後是Room的語法問題
 
+```kotlin
+@Database(entities = [Task::class], version = 2, exportSchema = false)
 
-Getting Started
----------------
+//需要將version改成2
+abstract class AppDatabase : RoomDatabase() {
+ // …
+ companion object {
+ fun create(context: Context): AppDatabase =
+ Room.databaseBuilder(context, AppDatabase::class.java, "app.db")
+ .fallbackToDestructiveMigration() // 直接砍掉舊 DB，重建新結構
+ .build()
+ }
+}
+```
 
-1. Download and run the app.
+## 問題四
+
+*無法使用swipe元件*
+
+## 解決方法
+
+```kotlin
+ implementation("androidx.compose.material:material:1.8.1")
+```
+
+修改gradle檔 導入相依元件
+
+
+
+
+
+
+
+
+
+   
+
+
+--------------

From 4dc34066a76af44763746bcbcb67def7b6a1cb88 Mon Sep 17 00:00:00 2001
From: OvO <90671891+Max7414@users.noreply.github.com>
Date: Wed, 17 Sep 2025 13:16:53 +0800
Subject: [PATCH 32/32] DT-1 Adjust readme

DT-1 Adjust readme
---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 35ac8962..e27ae0e2 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+TESTMESSAGE
+
 To Do List app
 ==================================