1 files changed, 115 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.Android.AppLinks/AndroidAppLinks.cs b/Xamarin.Forms.Platform.Android.AppLinks/AndroidAppLinks.cs
new file mode 100644
index 00000000..b1639da7
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android.AppLinks/AndroidAppLinks.cs
@@ -0,0 +1,115 @@
+using System;
+using System.Threading.Tasks;
+using Android.Content;
+using Android.Gms.AppIndexing;
+using Android.Gms.Common.Apis;
+using Android.Runtime;
+using IndexingAction = Android.Gms.AppIndexing.Action;
+using Android.App;
+
+namespace Xamarin.Forms.Platform.Android.AppLinks
+{
+	[Preserve(AllMembers = true)]
+	public class AndroidAppLinks : IAppLinks, IDisposable
+	{
+		readonly GoogleApiClient _client;
+
+		bool _disposed;
+
+		public static bool IsInitialized { get; private set; }
+
+		public static Context Context { get; private set; }
+
+		public static void Init(Activity activity)
+		{
+			if (IsInitialized)
+				return;
+			IsInitialized = true;
+
+			Context = activity;
+		}
+
+		public AndroidAppLinks(Context context)
+		{
+			_client = new GoogleApiClient.Builder(context).AddApi(AppIndex.API).Build();
+			_client.Connect();
+		}
+
+		public void DeregisterLink(IAppLinkEntry appLink)
+		{
+			RemoveFromIndexItemAsync(appLink.AppLinkUri.ToString());
+		}
+
+		public void DeregisterLink(Uri appLinkUri)
+		{
+			RemoveFromIndexItemAsync(appLinkUri.ToString());
+		}
+
+		public async void RegisterLink(IAppLinkEntry appLink)
+		{
+			await IndexItemAsync(appLink);
+		}
+
+		public void Dispose()
+		{
+			Dispose(true);
+		}
+
+		protected virtual void Dispose(bool isDisposing)
+		{
+			if (isDisposing && !_disposed)
+			{
+				_disposed = true;
+				_client.Disconnect();
+				_client.Dispose();
+			}
+		}
+
+		static IndexingAction BuildIndexAction(IAppLinkEntry appLink)
+		{
+			Thing item = new Thing.Builder().SetName(appLink.Title).SetDescription(appLink.Description).SetUrl(global::Android.Net.Uri.Parse(appLink.AppLinkUri.AbsoluteUri)).Build();
+			Thing thing = new IndexingAction.Builder(IndexingAction.TypeView).SetObject(item).SetActionStatus(IndexingAction.StatusTypeCompleted).Build();
+			var indexAction = thing.JavaCast<IndexingAction>();
+			return indexAction;
+		}
+
+		async Task IndexItemAsync(IAppLinkEntry appLink)
+		{
+			IndexingAction indexAction = BuildIndexAction(appLink);
+
+			if (_client.IsConnected && appLink.IsLinkActive)
+			{
+				Statuses resultStart = await AppIndex.AppIndexApi.StartAsync(_client, indexAction);
+				if (resultStart.IsSuccess)
+				{
+					var aL = appLink as AppLinkEntry;
+					if (aL != null)
+					{
+						aL.PropertyChanged += async (sender, e) =>
+						{
+							if (e.PropertyName == AppLinkEntry.IsLinkActiveProperty.PropertyName)
+							{
+								if (appLink.IsLinkActive)
+								{
+									Statuses resultStartAgain = await AppIndex.AppIndexApi.StartAsync(_client, indexAction);
+								}
+								else
+								{
+									Statuses resultEnd = await AppIndex.AppIndexApi.EndAsync(_client, indexAction);
+								}
+							}
+						};
+					}
+				}
+			}
+		}
+
+		void RemoveFromIndexItemAsync(string identifier)
+		{
+			if (_client.IsConnected)
+			{
+			}
+		}
+	}
+}
+