Менеджер уведомлений не показывает никакого уведомления

Question

Я очень новичок в android, и у меня есть клиент и сервер GCM, который отлично работает. Когда приложение запущено, я получаю уведомление с сервера.

Но когда приложение не работает, я не получил никакого ответа.

Вот код, который я использую для генерации уведомлений:

private void generateNotification(Context context, String message) { 
     int icon = 1; 
     long when = System.currentTimeMillis(); 

     NotificationManager notificationManager = (NotificationManager) 
       context.getSystemService(Context.NOTIFICATION_SERVICE); 
     Notification notification = new Notification(icon, message, when); 
     String title = context.getString(R.string.app_name); 
     Intent notificationIntent = new Intent(context, DemoActivity.class); 
     // set intent so it does not start a new activity 
     notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | 
       Intent.FLAG_ACTIVITY_SINGLE_TOP); 
     PendingIntent intent = 
       PendingIntent.getActivity(context, 0, notificationIntent, 0); 
     notification.setLatestEventInfo(context, title, message, intent); 
     notification.flags |= Notification.FLAG_AUTO_CANCEL; 
     notificationManager.notify(0, notification); 
    } 

, который вызывается через:

@Override 
    protected void onMessage(Context context, Intent intent) { 
     generateNotification(context, "Tock Tock"); 
    } 

, когда я вижу LogCat я получаю сообщение об ошибке, как это:

Unable to find resource: 1 
W/ImageView( 58): android.content.res.Resources$NotFoundException: Resource ID #0x1 
W/ImageView( 58):  at android.content.res.Resources.getValue(Resources.java:892) 
W/ImageView( 58):  at android.content.res.Resources.getDrawable(Resources.java:580) 
W/ImageView( 58):  at android.widget.ImageView.resolveUri(ImageView.java:489) 
W/ImageView( 58):  at android.widget.ImageView.onMeasure(ImageView.java:592) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012) 
W/ImageView( 58):  at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:696) 
W/ImageView( 58):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:306) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012) 
W/ImageView( 58):  at android.widget.LinearLayout.measureVertical(LinearLayout.java:381) 
W/ImageView( 58):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:304) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:245) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012) 
W/ImageView( 58):  at android.widget.LinearLayout.measureVertical(LinearLayout.java:381) 
W/ImageView( 58):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:304) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012) 
W/ImageView( 58):  at android.widget.LinearLayout.measureVertical(LinearLayout.java:381) 
W/ImageView( 58):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:304) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012) 
W/ImageView( 58):  at android.widget.LinearLayout.measureVertical(LinearLayout.java:381) 
W/ImageView( 58):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:304) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.widget.ScrollView.measureChildWithMargins(ScrollView.java:989) 
W/ImageView( 58):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:245) 
W/ImageView( 58):  at android.widget.ScrollView.onMeasure(ScrollView.java:286) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:245) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1012) 
W/ImageView( 58):  at android.widget.LinearLayout.measureVertical(LinearLayout.java:381) 
W/ImageView( 58):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:304) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:245) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3132) 
W/ImageView( 58):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:245) 
W/ImageView( 58):  at android.view.View.measure(View.java:8171) 
W/ImageView( 58):  at android.view.ViewRoot.performTraversals(ViewRoot.java:801) 
W/ImageView( 58):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1727) 
W/ImageView( 58):  at android.os.Handler.dispatchMessage(Handler.java:99) 
W/ImageView( 58):  at android.os.Looper.loop(Looper.java:123) 
W/ImageView( 58):  at com.android.server.ServerThread.run(SystemServer.java:506) 

Не знаю, где я делаю ошибку. Я следую примеру учебника от here.

Заранее спасибо.

Answer 1

Проблема с int icon = 1;.

Вы должны добавить реальный идентификатор ресурса, чтобы он отображался в панели уведомлений. Вы получаете Resources$NotFoundException, потому что ресурс не найден с идентификатором 1.

Например, если вы поместите изображение с именем xyz.png в папку res/drawable, идентификатор на изображение будет R.drawable.xyz, который может быть вызван из кода, как:

int icon = R.drawable.xyz;