通知

import android.app.Activity;import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.Intent;import android.graphics.BitmapFactory;import android.net.Uri;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.view.View;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}public void click(View v){//1.获取到手机系统里面的通知管理器NotificationManager nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);//2.实例化Notification，表示通知的内容Notification notification = new Notification(R.drawable.ic_launcher,"我是一个Notification",System.currentTimeMillis());//点击之后自动取消notification.flags = Notification.FLAG_AUTO_CANCEL;Intent intent = new Intent();intent.setAction(Intent.ACTION_CALL);intent.setData(Uri.parse("tel:110"));PendingIntent contentIntent = PendingIntent.getActivity(this, 0, intent, 0);notification.setLatestEventInfo(this, "我是Notification的标题", "我是Notification的内容", contentIntent);// Notification.Builder builder = new Notification.Builder(this);//// builder.setContentTitle("我是Notification的标题 " )//         .setContentText("我是Notification的内容")//         .setSmallIcon(R.drawable.ic_launcher)//         .setLargeIcon(BitmapFactory.decodeResource(getResources(),//          R.drawable.ic_launcher));// Notification notification = builder.build();// nm.notify(0,notification);}}