@RequiresApi(api = Build.VERSION_CODES.M)
public void showNotification(int playPauseBtn) {


    Intent intent = new Intent(this, ExoActivity.class);

    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_MUTABLE);

    Intent prevIntent = new Intent(this, NotificationReceiver.class).setAction(ACTION_PREVIOUS);
    PendingIntent prevPendingIntent = PendingIntent.getBroadcast(this, 0, prevIntent,
            PendingIntent.FLAG_MUTABLE);

    Intent playIntent = new Intent(this, NotificationReceiver.class).setAction(ACTION_PLAY);
    PendingIntent playPendingIntent = PendingIntent.getBroadcast(this, 0, playIntent,
            PendingIntent.FLAG_MUTABLE);

    Intent nextIntent = new Intent(this, NotificationReceiver.class).setAction(ACTION_NEXT);
    PendingIntent nextPendingIntent = PendingIntent.getBroadcast(this, 0, nextIntent,
            PendingIntent.FLAG_MUTABLE);

    Bitmap picture = BitmapFactory.decodeResource(getResources(), HelperClass.getlist().get(position).getImg());
    Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID_2)
            .setSmallIcon(HelperClass.getlist().get(position).getImg())    //get thumbnail will have small icon pic
            .setLargeIcon(picture)
            .setContentTitle(HelperClass.getlist().get(position).getName())
            .addAction(R.drawable.ic_baseline_skip_previous_24, "Previous", prevPendingIntent)
            .addAction(R.drawable.ic_baseline_play_arrow_24, "Play", playPendingIntent)
            .addAction(R.drawable.ic_baseline_skip_next_24, "Next", nextPendingIntent)

// .setStyle（新安卓系统媒体应用通知兼容媒体样式（）// .setMediaSession（媒体会话获取会话令牌（））.setPriority（通知优先级_高）.setC your text内容意图（内容意图）.setOnlyAlertOnce（真）.build（）;

NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    notificationManager.notify(0, notification);

}

这段代码在调用这个函数的任何地方创建通知，但是如果我想通过删除通知来关闭应用程序该怎么办