/ 第一步：获取NotificationManager

NotificationManager nm = (NotificationManager)

getSystemService(Context.NOTIFICATION_SERVICE);

/ 第二步：定义Notification

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

//PendingIntent是待运行的Intent

PendingIntent pi = PendingIntent.getActivity(this, 0, intent,

PendingIntent.FLAG_CANCEL_CURRENT);

Notification notification = new Notification.Builder(this)

.setContentTitle("title")

.setContentText("text")

.setSmallIcon(R.drawable.ic_launcher).setContentIntent(pi)

.build();

notification.flags = Notification.FLAG_NO_CLEAR;

/第三步：启动通知栏，第一个參数是一个通知的唯一标识

nm.notify(0, notification);

//关闭通知

//nm.cancel(0);

更复杂的功能能够查询相关api文档。