OneSignal Bildirimi - Acil

Bunu yapmak için  NotificationOpenedHandler kullanacaksınız:
 

class ExampleNotificationOpenedHandler implements OneSignal.NotificationOpenedHandler {
  // Burada bildirim açıldığı anda nelerin yapılacağına dair bir örnek veriliyor
  @Override
  public void notificationOpened(OSNotificationOpenResult result) {
    OSNotificationAction.ActionType actionType = result.action.type;
    JSONObject data = result.notification.payload.additionalData;
    String customKey;

    if (data != null) {
      customKey = data.optString("customkey", null);
      if (customKey != null)
        Log.i("OneSignalExample", "customkey set with value: " + customKey);
    }

    if (actionType == OSNotificationAction.ActionType.ActionTaken)
      Log.i("OneSignalExample", "Button pressed with id: " + result.action.actionID);

    // The following can be used to open an Activity of your choice.
    // Replace - getApplicationContext() - with any Android Context.
    // Intent intent = new Intent(getApplicationContext(), YourActivity.class);
    // intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK);
    // startActivity(intent);

     // Add the following to your AndroidManifest.xml to prevent the launching of your main Activity
     //   if you are calling startActivity above.
     /* 
        <application ...>
          <meta-data android:name="com.onesignal.NotificationOpened.DEFAULT" android:value="DISABLE" />
        </application>
     /*
  }
}