fix: Fix "share sample" on Android by using protocol activation

Uno.Gallery/Uno.Gallery.Mobile/Android/MainActivity.Android.cs

@@ -11,6 +11,11 @@ namespace Uno.Gallery
 			ConfigurationChanges = global::Uno.UI.ActivityHelper.AllConfigChanges,
 			WindowSoftInputMode = SoftInput.AdjustPan | SoftInput.StateHidden
 		)]
+	[IntentFilter(new[] { Android.Content.Intent.ActionView },
+		Categories = new[] { Android.Content.Intent.CategoryDefault, Android.Content.Intent.CategoryBrowsable },
+		DataScheme = "https",
+		DataHost = "unogallery.app.link",
+		AutoVerify = true)]
 	public class MainActivity : Microsoft.UI.Xaml.ApplicationActivity
 	{
 	}

Uno.Gallery/Uno.Gallery.Mobile/iOS/Entitlements.plist

@@ -1,6 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
-	<dict>
-	</dict>
+  <dict>
+    <key>com.apple.developer.associated-domains</key>
+    <array>
+      <string>applinks:unogallery.app.link</string>
+    </array>
+  </dict>
 </plist>

Uno.Gallery/Uno.Gallery.Shared/App.xaml.cs

@@ -75,6 +75,25 @@ protected override void OnLaunched(LaunchActivatedEventArgs e)
 			OnLaunchedOrActivated();
 		}
 
+		protected override void OnActivated(IActivatedEventArgs args)
+		{
+			base.OnActivated(args);
+			OnLaunchedOrActivated();
+
+			if (args.Kind == ActivationKind.Protocol)
+			{
+				var protocolActivatedEventArgs = (ProtocolActivatedEventArgs)args;
+				var uri = protocolActivatedEventArgs.Uri;
+
+				// Handle uris on the form https://unogallery.app.link/designName/sampleName
+				if (uri.Host.Equals("unogallery.app.link", StringComparison.OrdinalIgnoreCase))
+				{
+					var urlParts = uri.LocalPath.Split('/', StringSplitOptions.RemoveEmptyEntries);
+					TryNavigateToLaunchSample(title: urlParts[1], design: urlParts[0]);
+				}
+			}
+		}
+
 		private void OnLaunchedOrActivated()
 		{
 #if WINDOWS && !HAS_UNO
@@ -115,7 +134,7 @@ public static void TryNavigateToLaunchSample(string title, string design)
 			var sample = GetSamples().FirstOrDefault(s => s.ViewType.Name.ToLowerInvariant() == title.ToLowerInvariant());
 			if (sample != null)
 			{
-				if (HasValue(design) && Enum.TryParse<Design>(design, out var designType))
+				if (HasValue(design) && Enum.TryParse<Design>(design, ignoreCase: true, out var designType))
 				{
 					SamplePageLayout.SetPreferredDesign(designType);
 				}
@@ -415,6 +434,11 @@ private void ConfigureXamlDisplay()
 			XamlDisplay.Init(GetType().Assembly);
 		}
 
+		public static void OpenSample(string pageName, string designName)
+		{
+
+		}
+
 		public static IEnumerable<Sample> GetSamples()
 		{
 			return _samples = _samples ??

Uno.Gallery/Uno.Gallery.Shared/Controls/SamplePageLayout.cs

@@ -12,6 +12,13 @@
 using Microsoft.UI.Xaml.Data;
 using Microsoft.UI.Xaml.Documents;
 using Microsoft.UI.Xaml.Media;
+#if __ANDROID__
+using Android.Content;
+#elif __IOS__
+using UIKit;
+using Foundation;
+using LinkPresentation;
+#endif
 
 namespace Uno.Gallery
 {
@@ -166,12 +173,55 @@ void OnScrolled(object sender, ScrollViewerViewChangedEventArgs e)
 
 		private void OnShareClicked(Hyperlink sender, HyperlinkClickEventArgs args)
 		{
-#if (__IOS__ || __ANDROID__) && !NET6_0_OR_GREATER
+#if __ANDROID__
 			var sample = DataContext as Sample;
-			_ = Deeplinking.BranchService.Instance.ShareSample(sample, _design);
+			var intent = new Intent(Intent.ActionSend);
+			intent.SetType("text/plain");
+			intent.PutExtra(Intent.ExtraText, $"Check out this Uno Gallery page!{Environment.NewLine}https://unogallery.app.link/{_design.ToString().ToLowerInvariant()}/{sample.ViewType.Name.ToLowerInvariant()}");
+			var chooserIntent = Intent.CreateChooser(intent, "Share Link");
+			var flags = ActivityFlags.ClearTop | ActivityFlags.NewTask;
+			chooserIntent.SetFlags(flags);
+			global::Android.App.Application.Context.StartActivity(chooserIntent);
+#elif false // __IOS__ , not working.
+			UIResponder responder = this;
+
+			while (responder is UIView nativeView)
+			{
+				responder = nativeView.NextResponder;
+			}
+
+			if (responder is UIViewController vc)
+			{
+				var sample = DataContext as Sample;
+				var activityController = new UIActivityViewController(new NSObject[] { new ShareableSample(_design.ToString(), sample.ViewType.Name) }, null);
+				activityController.PopoverPresentationController.SourceView = vc.View;
+				vc.PresentViewController(activityController, animated: true, null);
+			}
 #endif
 		}
 
+#if false // __IOS__ , not working.
+		private sealed class ShareableSample : UIActivityItemSource
+		{
+			public ShareableSample(string designName, string sampleName)
+			{
+				Subtitle = $"Check out this Uno Gallery page!{Environment.NewLine}https://unogallery.app.link/{designName.ToLowerInvariant()}/{sampleName.ToLowerInvariant()}";
+			}
+
+			public string Title => "Share Link";
+			public string Subtitle { get; }
+
+			public override NSObject GetPlaceholderData(UIActivityViewController activityViewController) => new NSString(Title);
+
+			public override LPLinkMetadata GetLinkMetadata(UIActivityViewController activityViewController)
+			{
+				var metadata = new LPLinkMetadata();
+				metadata.Title = Title;
+				return metadata;
+			}
+		}
+#endif
+
 		/// <summary>
 		/// Changes the preferred design.
 		/// This doesn't change the current UI. It only affects the next created sample.

Uno.Gallery/Uno.Gallery.Shared/Uno.Gallery.Shared.projitems

@@ -157,7 +157,6 @@
     <Compile Include="$(MSBuildThisFileDirectory)Converters\HexToColorConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Converters\RandomColorConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Converters\SecretConverter.cs" />
-    <Compile Include="$(MSBuildThisFileDirectory)Deeplinking\BranchService.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Domain\AnalyticsService.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Entities\Data\TreeItem.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Entities\Data\Folder.cs" />

Uno.Gallery/Uno.Gallery.Shared/Views/Shell.xaml.cs

@@ -45,11 +45,6 @@ public string CurrentSampleBackdoor
 		private void OnLoaded(object sender, RoutedEventArgs e)
 		{
 			SetDarkLightToggleInitialState();
-
-#if (__IOS__ || __ANDROID__) && !NET6_0_OR_GREATER
-			this.Log().Debug("Loaded Shell.");
-			Uno.Gallery.Deeplinking.BranchService.Instance.SetIsAppReady();
-#endif
 		}
 
 		private void SetDarkLightToggleInitialState()