1 public class MainActivity extends Activity {
 2 
 3     private NotificationManager nm;
 4     @Override
 5     protected void onCreate(Bundle savedInstanceState) {
 6         super.onCreate(savedInstanceState);
 7         setContentView(R.layout.activity_main);
 8         nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
 9     }
10 
11     public void click(View v){
12         Notification notification = new Notification.Builder(this)
13                 .setContentTitle("我是大标题")
14                 .setContentText("我是标题的内容")
15                 .setSmallIcon(R.mipmap.ic_launcher)
16                 .setLargeIcon(BitmapFactory.decodeResource(getResources(),R.mipmap.ic_launcher))
17                 .build();
18             nm.notify(10,notification);
19     }
20     public void click1(View v){
21         nm.cancel(10);
22     }
23 }