How To Open App In Notification In Android?

In my app, when completing a task in async file, it shows a notification with this code NotificationManager notificationManager = (NotificationManager) context.getSystemService

Solution 1:

You need an Intent, sample code:

NotificationManagernotificationManager= (NotificationManager) context
            .getSystemService(Context.NOTIFICATION_SERVICE);
    Notificationnotification=newNotification(icon, message, when);

    IntentnotificationIntent=newIntent(context, MainActivity.class);

    notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
            | Intent.FLAG_ACTIVITY_SINGLE_TOP);

    PendingIntentintent= PendingIntent.getActivity(context, 0,
            notificationIntent, 0);

    notification.setLatestEventInfo(context, title, message, intent);
    notification.flags |= Notification.FLAG_AUTO_CANCEL;
    notificationManager.notify(0, notification);

This will open your MainActivity