<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"tools:context=".MainActivity"><TextViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:text="通知栏的使用" /><Buttonandroid:id="@+id/btn_send"android:layout_width="match_parent"android:layout_height="wrap_content"android:text="发送通知"/><Buttonandroid:id="@+id/btn_cancel"android:layout_width="match_parent"android:layout_height="wrap_content"android:text="取消通知"/>
</LinearLayout>

    <!--指示灯的权限--><uses-permission android:name="android.permission.FLASHLIGHT" /><!--震动的权限--><uses-permission android:name="android.permission.VIBRATE" />

package com.example.zhengcheng.myapplication;import android.app.Activity;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.app.Notification;public class MainActivity extends Activity {Button btn_send;    //发送按钮Button btn_cancel;  //取消按钮NotificationManager manager;  //通知控制类int notificationID;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//通过系统服务来创建NotificationManagermanager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);btn_send = (Button) findViewById(R.id.btn_send);btn_send.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {sendNotication();}});btn_cancel = (Button) findViewById(R.id.btn_cancel);btn_cancel.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {manager.cancel(notificationID);}});}/*** 发送通知信息*/private void sendNotication() {Intent intent = new Intent(this, MainActivity.class);PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);Notification.Builder builder = new Notification.Builder(this);builder.setSmallIcon(R.mipmap.ic_launcher);   //设置图标builder.setTicker("手机状态栏提示");           //手机状态栏提示builder.setWhen(System.currentTimeMillis());  //设置时间builder.setContentTitle("通知栏标题");         //设置标题栏builder.setContentText("我来自NotificationDemo");          //设置通知栏内容builder.setContentIntent(pendingIntent);      //设置点击通知栏时弹出哪一个Activity//        builder.setDefaults(Notification.DEFAULT_SOUND);    //设置提示声音
//        builder.setDefaults(Notification.DEFAULT_LIGHTS);    //设置指示灯
//        builder.setDefaults(Notification.DEFAULT_VIBRATE);  //设置震动
builder.setDefaults(Notification.DEFAULT_ALL);   //设置上面所有的效果Notification notification = builder.build();     //Android4.1以上的版本,
//        Notification notification = builder.getNotification();  //如果4.1以下的版本使用 builder.getNotification();
        manager.notify(notificationID, notification);}}