xamarin.forms GCM empfängt keine Nachrichten

Question

Ich versuche, Benachrichtigungen über GCM in meinem Xamarin.Forms-Projekt zu implementieren. Hier ist mein Code

MainActivity

using Android.App; 
using Android.Content.PM; 
using Android.OS; 
using Android.Gms.Common; 
using Android.Content; 

namespace AIA.Droid 
{ 
    [Activity (Theme = "@style/MyTheme", 
     ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)] 
    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsApplicationActivity 
    { 
     protected override void OnCreate (Bundle bundle) 
     { 
      base.OnCreate (bundle); 

      global::Xamarin.Forms.Forms.Init (this, bundle); 
      LoadApplication (new AIA.App()); 

      var x = typeof(Xamarin.Forms.Themes.DarkThemeResources); 
      x = typeof(Xamarin.Forms.Themes.LightThemeResources); 
      x = typeof(Xamarin.Forms.Themes.Android.UnderlineEffect); 

      if (IsPlayServicesAvailable()) 
      { 
       var intent = new Intent(this, typeof(RegistrationIntentService)); 
       StartService(intent); 
      } 
     } 

     public bool IsPlayServicesAvailable() 
     { 
      int resultCode = GoogleApiAvailability.Instance.IsGooglePlayServicesAvailable(this); 
      if (resultCode != ConnectionResult.Success) 
       return false; 
      else 
       return true; 
     } 
    } 
} 

Mein RegistrationIntentService.cs

hier ************ ist meine Anwendung Nummer erhalten von Google Wiedergabe API-Konsole

using System;  
using Android.App; 
using Android.Content; 
using Android.Util; 
using Android.Gms.Gcm; 
using Android.Gms.Gcm.Iid; 

namespace AIA.Droid 
{ 
    [Service(Exported = false)] 
    class RegistrationIntentService : IntentService 
    { 
     static object locker = new object(); 

     public RegistrationIntentService() : base("RegistrationIntentService") { } 

     protected override void OnHandleIntent(Intent intent) 
     { 
      try 
      { 
       Log.Info("RegistrationIntentService", "Calling InstanceID.GetToken"); 
       lock (locker) 
       { 
        var instanceID = InstanceID.GetInstance(this); 
        var token = instanceID.GetToken(
         "************", GoogleCloudMessaging.InstanceIdScope, null); 

        Log.Info("RegistrationIntentService", "GCM Registration Token: " + token); 
        SendRegistrationToAppServer(token); 
        Subscribe(token); 
       } 
      } 
      catch (Exception e) 
      { 
       Log.Debug("RegistrationIntentService", "Failed to get a registration token"); 
       return; 
      } 
     } 

     void SendRegistrationToAppServer(string token) 
     { 
      // Add custom implementation here as needed. 
     } 

     void Subscribe(string token) 
     { 
      var pubSub = GcmPubSub.GetInstance(this); 
      pubSub.Subscribe(token, "/topics/global", null); 
     } 
    } 
} 

Mein MyGcmListenerService.cs

using Android.App; 
using Android.Content; 
using Android.OS; 
using Android.Gms.Gcm; 
using Android.Util; 

namespace AIA.Droid 
{ 
    [Service(Exported = false), IntentFilter(new[] { "com.google.android.c2dm.intent.RECEIVE" })] 
    public class MyGcmListenerService : GcmListenerService 
    { 
     public override void OnMessageReceived(string from, Bundle data) 
     { 
      var message = data.GetString("message"); 
      Log.Debug("MyGcmListenerService", "From: " + from); 
      Log.Debug("MyGcmListenerService", "Message: " + message); 
      SendNotification(message); 
     } 

     void SendNotification(string message) 
     { 
      var intent = new Intent(this, typeof(MainActivity)); 
      intent.AddFlags(ActivityFlags.ClearTop); 
      var pendingIntent = PendingIntent.GetActivity(this, 0, intent, PendingIntentFlags.OneShot); 

      var notificationBuilder = new Notification.Builder(this) 
       .SetSmallIcon(Resource.Drawable.Icon) 
       .SetContentTitle("Akola Industries Association") 
       .SetContentText(message) 
       .SetDefaults(NotificationDefaults.Sound) 
       .SetContentIntent(pendingIntent); 

      var notificationManager = (NotificationManager)GetSystemService(Context.NotificationService); 
      notificationManager.Notify(0, notificationBuilder.Build()); 
     } 
    } 
} 

Schließlich Mein AndroidMainfeast

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.AIA.Droid" android:installLocation="auto" android:versionCode="1" android:versionName="1.0"> 
    <uses-sdk android:minSdkVersion="16" /> 
    <uses-permission android:name="android.permission.INTERNET" /> 
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /> 
    <uses-permission android:name="android.permission.WAKE_LOCK" /> 
    <uses-permission android:name="com.AIA.Droid.permission.C2D_MESSAGE" /> 
    <uses-permission android:name="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE"></uses-permission> 
    <permission android:name="com.AIA.Droid.permission.C2D_MESSAGE" android:protectionLevel="signature" /> 
    <application android:label="AIA" android:icon="@drawable/Icon"> 
    <receiver android:name="com.google.android.gms.gcm.GcmReceiver" 
      android:exported="true" 
      android:permission="com.google.android.c2dm.permission.SEND"> 
     <intent-filter> 
     <action android:name="com.google.android.c2dm.intent.RECEIVE" /> 
     <action android:name="com.google.android.c2dm.intent.REGISTRATION" /> 
     <category android:name="com.AIA.Droid" /> 
     </intent-filter> 
    </receiver> 
    </application> 
</manifest> 

der obige Code Sie sind alle in meinem Client App für Benachrichtigungen empfangen hier Jetzt Code ist, wie ich das Senden von Nachrichten

using System; 
using System.Net.Http; 
using System.Net.Http.Headers; 
using System.Text; 
using System.Threading.Tasks; 
using Newtonsoft.Json.Linq; 

namespace MessageSender 
{ 
    class Program 
    { 
     public const string API_KEY = "My_API_Key"; 
     public const string MESSAGE = "Welcome to AIA"; 

     static void Main(string[] args) 
     { 
      var jGcmData = new JObject(); 
      var jData = new JObject(); 

      jData.Add("message", MESSAGE); 
      jGcmData.Add("to", "/topics/global"); 
      jGcmData.Add("data", jData); 

      var url = new Uri("https://gcm-http.googleapis.com/gcm/send"); 
      try 
      { 
       using (var client = new HttpClient()) 
       { 
        client.DefaultRequestHeaders.Accept.Add(
         new MediaTypeWithQualityHeaderValue("application/json")); 

        client.DefaultRequestHeaders.TryAddWithoutValidation(
         "Authorization", "key=" + API_KEY); 

        Task.WaitAll(client.PostAsync(url, 
         new StringContent(jGcmData.ToString(), Encoding.Default, "application/json")) 
          .ContinueWith(response => 
          { 
           Console.WriteLine(response); 
           Console.WriteLine("Message sent: check the client device notification tray."); 
          })); 
       } 
      } 
      catch (Exception e) 
      { 
       Console.WriteLine("Unable to send GCM message:"); 
       Console.Error.WriteLine(e.StackTrace); 
      } 
     } 
    } 
} 

Hier

ist Antwort vom Server

Id = 13, Status = RanToCompletion, Method = "{null}", Result = "StatusCode: 200, ReasonPhrase: 'OK', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:\r\n{\r\n X-Content-Type-Options: nosniff\r\n X-Frame-Options: SAMEORIGIN\r\n X-XSS-Protection: 1; mode=block\r\n Alt-Svc: quic=\":443\"; ma=2592000; v=\"36,35,34,33,32\"\r\n Vary: Accept-Encoding\r\n Transfer-Encoding: chunked\r\n Accept-Ranges: none\r\n Cache-Control: max-age=0, private\r\n Date: Tue, 25 Oct 2016 05:02:12 GMT\r\n Server: GSE\r\n Content-Type: application/json; charset=UTF-8\r\n Expires: Tue, 25 Oct 2016 05:02:12 GMT\r\n}" 

Ich bin nicht verstehen, wo ich falsch bin.

Bitte helfen Amit Saraf

Answer 1

Diese Links hat mir sehr geholfen, den Prozess der GCM Push-Benachrichtigungen zu verstehen, können Sie auch POSTMAN das Senden der Push-Benachrichtigungen testen können:

http://forums.xamarin.com/discussion/comment/217083/#Comment_217083

How to use Push Notifications in Xamarin Forms

http://xamarinhelp.com/push-notifications/

Testen Sie sie: https://stackoverflow.com/a/30778643/1207924