如何在Android應用程序上顯示通知？

Question

當我的服務器返回特定值時，我需要顯示通知。我有一個運行在android和taskschedule上的服務，每次向服務器發送請求時，當服務器返回正值時，我需要在celular顯示器上顯示消息，類似於whatsapp（顯示圖標和顯示通知）的接收消息。任何人都有樣品？

我想這一點：

PendingIntent resultPendingIntent = PendingIntent.getActivity(
    this, 0, resultIntent, PendingIntent.FLAG_UPDATE_CURRENT); 

但我的應用程序作爲服務運行。

Answer 1

請使用Using Service to run background and create notification

private void processStartNotification() { 
     // Do something. For example, fetch fresh data from backend to create a rich notification? 

     final NotificationCompat.Builder builder = new NotificationCompat.Builder(this); 
     builder.setContentTitle("Scheduled Notification") 
       .setAutoCancel(true) 
       .setColor(getResources().getColor(R.color.colorAccent)) 
       .setContentText("This notification has been triggered by Notification Service") 
       .setSmallIcon(R.drawable.notification_icon); 

     PendingIntent pendingIntent = PendingIntent.getActivity(this, 
       NOTIFICATION_ID, 
       new Intent(this, NotificationActivity.class), 
       PendingIntent.FLAG_UPDATE_CURRENT); 
     builder.setContentIntent(pendingIntent); 
     builder.setDeleteIntent(NotificationEventReceiver.getDeleteIntent(this)); 

     final NotificationManager manager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE); 
     manager.notify(NOTIFICATION_ID, builder.build()); 
    }