what to code for notification to stick until music stop playing

I want notification which will stick on notification bar until music stop playing it. currently i have written some code in which i can show notification but when i press clear notification button or swap it than it disappear from notification center. I want notification like spotify which stays on bar until you stop playing music. Here is my code for notification ``` int pendingRequestCode = 0; // final Resources res = getResources(); notificationManager = (NotificationManager) getSystemService( NOTIFICATION_SERVICE); Intent i = new Intent(getApplicationContext(),Mainactivity.class); Notification.Builder builder = new Notification.Builder(this) .setSmallIcon(R.drawable.ic_action_search) .setAutoCancel(true) .setTicker("test ckick") .setContentIntent(PendingIntent.getActivity(getApplicationContext(), NOTIFICATION_DEFAULT, i,0)); // Sets a custom content view for the notification, including an image button. layout = new RemoteViews(getPackageName(), R.layout.notification); layout.setTextViewText(R.id.notification_title, getString(R.string.app_name)); Intent clickIntent = new Intent(); clickIntent.setAction(ACTION_DIALOG); PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), pendingRequestCode, clickIntent, PendingIntent.FLAG_UPDATE_CURRENT); layout.setOnClickPendingIntent(R.id.notification_button,pendingIntent); builder.setContent(layout); // Notifications in Android 3.0 now have a standard mechanism for displaying large // bitmaps such as contact avatars. Here, we load an example image and resize it to the // appropriate size for large bitmaps in notifications. layout.setImageViewResource(R.id.notification_button, R.drawable.pause); notificationManager.notify(NOTIFICATION_DEFAULT, builder.getNotification()); ``` waiting for reply