Notifications Android

Question

Well, I'm trying to use notifications, but this code doesn't work. I've tested it on 4.4 and 5.0. I can't understand, what is wrong.

public void onClick(View view) { Context context = getApplicationContext(); Intent notificationIntent = new Intent(context, MainActivity.class); PendingIntent contentIntent = PendingIntent.getActivity(context, 0,notificationIntent, PendingIntent.FLAG_CANCEL_CURRENT); Resources res = context.getResources(); Notification.Builder builder = new Notification.Builder(context); builder.setContentIntent(contentIntent) .setWhen(System.currentTimeMillis()) .setAutoCancel(true) .setContentTitle("Title") .setContentText("Text"); Notification notification = builder.build(); NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); notificationManager.notify(NOTIFY_ID, notification); }

I'll be grateful for answer.

Pang · Accepted Answer · 2017-03-24 10:54:59Z

It is probably because Google changes its notification API quite a lot in each Android Edition. So the API you used not compatible for multi Android version. But Google release appcompat-v7 \appcompat-v4 to solve this stuff.

Try the following code:

public void send(View v) { NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); Context context = getApplicationContext(); Intent notificationIntent = new Intent(context, TestNotificationActivity.class); PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_CANCEL_CURRENT); NotificationCompat.Builder builder = new NotificationCompat.Builder(this); Notification notification = builder .setContentIntent(contentIntent) .setContentTitle("this is title") .setContentText("this is content") .setWhen(System.currentTimeMillis()) .setSmallIcon(R.mipmap.ic_launcher) .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher)) .build(); manager.notify(NOTIFY_ID, notification); }

Remember to import android.support.v7.app.NotificationCompat.

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