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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)
{
await AppIndex.AppIndexApi.StartAsync(_client, indexAction);
}
else
{
await AppIndex.AppIndexApi.EndAsync(_client, indexAction);
}
}
};
}
}
}
}
void RemoveFromIndexItemAsync(string identifier)
{
if (_client.IsConnected)
{
}
}
}
}
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