Android中new Notification创建实例的最佳方法

Notification notification = new Notification(R.drawable.ic_launcher,"This is ticker text",System.currentTimeMillis());

Notification notification = new Notification.Builder(this).setContentTitle("This is title").setContentText("This is content").setSmallIcon(R.drawable.ic_launcher).setTicker("This is ticker").setContentIntent(pi).build();