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();