How to use bigTextStyle in android 4.1 notification?

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http://stackoverflow.com – I tried in many ways to get the long thext styled notification but just cant reach my goal, pls someone help. I would like to use bigTextStyle in order to get multiline message in my notifs. Here is my code: mNotificationManager = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE); PendingIntent contentIntent = PendingIntent.getActivity(ctx, 0, new Intent(ctx, MainActivity.class), 0); Notification noti = new Notification.Builder(ctx) .setContentTitle("Title") .setSmallIcon(R.drawable.ic_launcher) .setStyle(new Notification.BigTe (HowTos)