Question

android中如何清除系统的notification？

使用NotificationManager里的cancelAll，但是只有我自己编写的通知被清除了，系统本身的例如未读短信、未接来电之类却依旧存在。求解？

Answer 1

public void cancelAll() 移除所有通知(只是针对当前Context下的Notification)

Answer 2

Notification notification = new Notification(R.drawable.icon,
"嘎你妹", System.currentTimeMillis());

NotificationManager nm = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);

Intent ii = new Intent();

PendingIntent contentIntent = PendingIntent.getActivity(context, 0,
ii, PendingIntent.FLAG_UPDATE_CURRENT);

notification.flags = Notification.FLAG_AUTO_CANCEL;

notification.defaults = Notification.DEFAULT_SOUND;

Intent i = new Intent("com.android.broadcasttest.xxx");//已有广播

notification.deleteIntent = PendingIntent.getBroadcast(this, 0,i, 0);

notification.setLatestEventInfo(context, "嘎嘎消息",

String.format("共%d条新消息", 1), contentIntent);

nm.notify(R.string.app_name, notification);
一个例子，希望楼主采纳。