title: Display MessageBody of Firebase Notification as Toast
body: <p>I am getting a run-time exception on displaying a Toast message</p>
  
  <pre><code>java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
  </code></pre>
  
  <p>I want to display the message body as a Toast message when the user receives a push notification from <strong>anywhere in the app</strong>.</p>
  
  <p>Any help?</p>
  
  <pre><code>public class MyAppFirebaseMessagingService extends FirebaseMessagingService {
  
      private static final String TAG = "FCM Service";
  
      @Override
      public void onMessageReceived(RemoteMessage remoteMessage) {
                if (remoteMessage.getNotification() != null) {
              if (AppConfig.SYSTEM_WIDE_DEBUG) {
                  Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
              }
  
              sendNotification(remoteMessage.getNotification().getBody());
          }
  
      }
  
      private void sendNotification(String messageBody) {
          Toast.makeText(getApplicationContext(),messageBody,Toast.LENGTH_LONG).show();
  
          Intent intent = new Intent(this, HomeActivity.class);
          intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
          PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent, PendingIntent.FLAG_ONE_SHOT);
  
          Uri defaultSoundUri = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.pushnotify);
          NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                  .setSmallIcon( R.mipmap.ic_launcher)
                  .setContentTitle("My APP")
                  .setContentText(messageBody)
                  .setAutoCancel(true)
                  .setSound(defaultSoundUri)
                  .setContentIntent(pendingIntent);
  
          NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
  
          notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
      }
  }
  </code></pre>