refactor example project to expo

Author: testshallpass

.gitignore

@@ -59,9 +59,41 @@ example/src
 coverage/
 
 # Yarn
+example/.yarn/*
 .yarn/*
 !.yarn/patches
 !.yarn/plugins
 !.yarn/releases
 !.yarn/sdks
-!.yarn/versions
+!.yarn/versions
+
+# Expo
+example/.expo/
+example/dist/
+example/web-build/
+example/expo-env.d.ts
+
+# Native
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
+
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# macOS
+*.pem
+
+# local env files
+.env*.local
+
+# typescript
+*.tsbuildinfo

example/.eslintignore

@@ -1,74 +1,36 @@
-# OSX
-#
-.DS_Store
-
-# Xcode
-#
-build/
-*.pbxuser
-!default.pbxuser
-*.mode1v3
-!default.mode1v3
-*.mode2v3
-!default.mode2v3
-*.perspectivev3
-!default.perspectivev3
-xcuserdata
-*.xccheckout
-*.moved-aside
-DerivedData
-*.hmap
-*.ipa
-*.xcuserstate
-**/.xcode.env.local
+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
 
-# Android/IntelliJ
-#
-build/
-.idea
-.gradle
-local.properties
-*.iml
-*.hprof
-.cxx/
-*.keystore
-!debug.keystore
-
-# node.js
-#
+# dependencies
 node_modules/
-npm-debug.log
-yarn-error.log
-
-# fastlane
-#
-# It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the
-# screenshots whenever they are needed.
-# For more information about the recommended setup visit:
-# https://docs.fastlane.tools/best-practices/source-control/
 
-**/fastlane/report.xml
-**/fastlane/Preview.html
-**/fastlane/screenshots
-**/fastlane/test_output
-
-# Bundle artifact
-*.jsbundle
+# Expo
+.expo/
+dist/
+web-build/
+expo-env.d.ts
+
+# Native
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
 
-# Ruby / CocoaPods
-**/Pods/
-/vendor/bundle/
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
 
-# Temporary files created by Metro to check the health of the file watcher
-.metro-health-check*
+# macOS
+.DS_Store
+*.pem
 
-# testing
-/coverage
+# local env files
+.env*.local
 
-# Yarn
-.yarn/*
-!.yarn/patches
-!.yarn/plugins
-!.yarn/releases
-!.yarn/sdks
-!.yarn/versions
+# typescript
+*.tsbuildinfo

example/.eslintrc.js

@@ -1,23 +1,21 @@
 # ThumbnailSelectorExample
 
+- Built with [Expo](https://expo.dev/).
+- Uses [yarn](https://yarnpkg.com/) v2 modern edition.
+- Refer to [Expo setup guide](https://docs.expo.dev/get-started/set-up-your-environment/) for help running this and local environment.
+- Use [Expo Go](https://expo.dev/go) option.
+
 ## Up and running
 
-Prerequisites
+### Prerequisites
+
+- Have iOS simulator and Android emulator installed.
+- Have real mobile device.
 
-- Development machine is on MacOS.
-- Homebrew <https://brew.sh/>
-- Yarn package manager <https://yarnpkg.com/> `brew install yarn`
-- [Setup of development environment for iOS and Android](https://reactnative.dev/docs/environment-setup)
+### Steps
 
 1. Open terminal.
 2. Change to example directory (`cd ~/example`).
-3. Run `yarn` to install Javascript dependencies.
-4. Run `yarn doctor` to assess development environment.
-5. Fix any development errors before proceeding to next step.
-6. Run `yarn ios:pod` to install Cocoapods dependencies.
-7. Run `yarn start` to start the Metro Bundler.
-8. Then enter `i` or `a` to run on iOS simulator or Android emulator.
-
-## References
-
-- <https://reactnative.dev/>
+3. Run `yarn install` to install dependencies.
+4. Run `yarn start` to start the development server.
+5. Enter `i` or `a` to run on iOS simulator or Android emulator.