NotificationCompat.Builder mBuilder =

                new NotificationCompat.Builder(this)

                .setSmallIcon(R.drawable.ic_launcher)

                .setContentTitle("My notification")

                .setContentText("Hello World!");

        //Notification.Builder builder=new Notification.Builder(this);

        mBuilder.setAutoCancel(true);

        mBuilder.setLights(Color.BLUE, 500, 500);

        long[] pattern = {500,500,500,500,500,500};

        mBuilder.setVibrate(pattern);

        Uri sound = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.messagevoice);

        mBuilder.setSound(sound);

        //mBuilder.setSound(sound);

        // Creates an explicit intent for an Activity in your app

        Intent resultIntent = new Intent(this, MessageShowActivity.class);

        // The stack builder object will contain an artificial back stack for the

        // started Activity.

        // This ensures that navigating backward from the Activity leads out of

        // your application to the Home screen.

        TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);

        // Adds the back stack for the Intent (but not the Intent itself)

        //stackBuilder.addParentStack(MessageShowActivity.class);

        // Adds the Intent that starts the Activity to the top of the stack

        stackBuilder.addNextIntent(resultIntent);

        PendingIntent resultPendingIntent =

                PendingIntent.getActivity(this, 0, new Intent(this,MessageShowActivity.class), 0);

        mBuilder.setContentIntent(resultPendingIntent);

        NotificationManager mNotificationManager =

            (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        // mId allows you to update the notification later on.

        mNotificationManager.notify(12, mBuilder.build());