android黑屏问题

android做本地消息通知的时候,点击推送消息进入游戏出现黑屏。

NotificationManager notificationManager = (NotificationManager)context.getSystemService(android.content.Context.NOTIFICATION_SERVICE);
Resources res = context.getResources();
int icon = res.getIdentifier(“icon”, “drawable”, context.getPackageName());

	Intent notificationIntent = new Intent(context, zbMainActivity.class); 
	notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
			     | Intent.FLAG_ACTIVITY_NEW_TASK );
	  
	PendingIntent contentItent = PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);    
	
	Notification notification = new Notification.Builder(context)
	.setSmallIcon(icon)
	.setContentTitle(contentTitle)
	.setContentText(contentText)
	.setContentIntent(contentItent)
	
	.setDefaults(Notification.DEFAULT_SOUND)
	.getNotification();
	
	notificationManager.notify(0, notification);