Support Android edge to edge (#5499)

Adjust Android UI for 35 API to support edge to edge scenarios

---------

Co-authored-by: Ashok Kumar Ramakrishnan <[email protected]>

Author: fengga

src/client/Microsoft.Identity.Client/Platforms/Android/EmbeddedWebview/AuthenticationAgentActivity.cs

@@ -13,26 +13,37 @@
 using Microsoft.Identity.Client.PlatformsCommon;
 using Microsoft.Identity.Client.PlatformsCommon.Shared;
 using Microsoft.Identity.Client.Utils;
+#if __ANDROID_30__
+using AndroidX.Core.View;
+using AndroidX.Core.Graphics;
+#endif
 
 namespace Microsoft.Identity.Client.Platforms.Android.EmbeddedWebview
 {
     [Activity(ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.ScreenSize, Exported=false)]
     internal class AuthenticationAgentActivity : Activity
     {
         private const string AboutBlankUri = "about:blank";
+        private const int ApiLevelVanillaIceCream = 35; // Android API 35 (Vanilla Ice Cream)
         private CoreWebViewClient _client;
 
         protected override void OnCreate(Bundle bundle)
         {
             base.OnCreate(bundle);
+            
+            // Enable edge-to-edge for Android API 30+
+            EnableEdgeToEdge();
+            
             // Create your application here
-
             WebView webView = new WebView(this);
             var relativeLayout = new RelativeLayout(this);
             webView.LayoutParameters = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MatchParent, RelativeLayout.LayoutParams.MatchParent);
 
             relativeLayout.AddView(webView);
             SetContentView(relativeLayout);
+            
+            // Apply window insets for edge-to-edge layout
+            ApplyWindowInsets(relativeLayout, webView);
 
             string url = Intent.GetStringExtra("Url");
 
@@ -51,6 +62,36 @@ protected override void OnCreate(Bundle bundle)
             webView.LoadUrl(url);
         }
 
+        private void EnableEdgeToEdge()
+        {
+#if __ANDROID_30__
+            if (Build.VERSION.SdkInt >= BuildVersionCodes.R) // API 30+
+            {
+                // Enable edge-to-edge
+                Window.SetDecorFitsSystemWindows(false);
+                
+                // For API 35+, ensure proper edge-to-edge behavior
+                if ((int)Build.VERSION.SdkInt >= ApiLevelVanillaIceCream)
+                {
+                    // Additional API 35 specific configurations using SetStatusBarColor/SetNavigationBarColor methods
+                    Window.SetStatusBarColor(global::Android.Graphics.Color.Transparent);
+                    Window.SetNavigationBarColor(global::Android.Graphics.Color.Transparent);
+                }
+            }
+#endif
+        }
+
+        private void ApplyWindowInsets(RelativeLayout parentLayout, WebView webView)
+        {
+#if __ANDROID_30__
+            if (Build.VERSION.SdkInt >= BuildVersionCodes.R) // API 30+
+            {
+                ViewCompat.SetOnApplyWindowInsetsListener(parentLayout, new OnApplyWindowInsetsListener(webView));
+                ViewCompat.RequestApplyInsets(parentLayout);
+            }
+#endif
+        }
+
         public override void Finish()
         {
             if (_client.ReturnIntent != null)
@@ -193,5 +234,38 @@ private void Finish(Activity activity, string url)
                 activity.Finish();
             }
         }
+
+#if __ANDROID_30__
+        private class OnApplyWindowInsetsListener : Java.Lang.Object, AndroidX.Core.View.IOnApplyWindowInsetsListener
+        {
+            private readonly WebView _webView;
+
+            public OnApplyWindowInsetsListener(WebView webView)
+            {
+                _webView = webView;
+            }
+
+            public WindowInsetsCompat OnApplyWindowInsets(global::Android.Views.View v, WindowInsetsCompat insets)
+            {
+                var systemBarsInsets = insets.GetInsets(WindowInsetsCompat.Type.SystemBars());
+                var imeInsets = insets.GetInsets(WindowInsetsCompat.Type.Ime());
+                
+                // Apply margins to avoid system UI overlap
+                var layoutParams = _webView.LayoutParameters as RelativeLayout.LayoutParams;
+                if (layoutParams != null)
+                {
+                    layoutParams.SetMargins(
+                        systemBarsInsets.Left,
+                        systemBarsInsets.Top,
+                        systemBarsInsets.Right,
+                        Math.Max(systemBarsInsets.Bottom, imeInsets.Bottom)
+                    );
+                    _webView.LayoutParameters = layoutParams;
+                }
+
+                return insets;
+            }
+        }
+#endif
     }
 }