使用Notification发送消息通知

demo代码：

MainActivity.java

package com.example.notificationdemo;

import android.os.Build;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.Notification;
import android.app.Notification.Builder;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;

public class MainActivity extends Activity implements OnClickListener {

NotificationManager manager;//通知控制类
int notification_ID = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
findViewById(R.id.btn_send).setOnClickListener(this);
findViewById(R.id.btn_cancle).setOnClickListener(this);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.btn_send:
sendNotification();
break;
case R.id.btn_cancle:
manager.cancel(notification_ID);
break;
}
}
/**
* 构造notification并发送到通知栏
*/

private void sendNotification(){
Intent intent = new Intent(this,MainActivity.class);
PendingIntent pintent = PendingIntent.getActivity(this, 0, intent, 0);
Builder builder = new Notification.Builder(this);
builder.setSmallIcon(R.drawable.ic_launcher);//设置图标
builder.setTicker("hello");//手机状态栏的提示；
builder.setWhen(System.currentTimeMillis());//设置时间
builder.setContentTitle("通知栏通知");//设置标题
builder.setContentText("我来自NotificationDemo");//设置通知内容
builder.setContentIntent(pintent);//点击后的意图
builder.setDefaults(Notification.DEFAULT_SOUND);//设置提示声音（不要忘记权限设置）
builder.setDefaults(Notification.DEFAULT_LIGHTS);//设置指示灯（不要忘记权限设置）
// builder.setDefaults(Notification.DEFAULT_VIBRATE);//设置震动（不要忘记权限设置）
builder.setDefaults(Notification.DEFAULT_ALL);//设置震动
// Notification notification = builder.build();//4.1以上
Notification notification = builder.getNotification();//4.1以下
manager.notify(notification_ID, notification);
}

}
AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.notificationdemo"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="12"
android:targetSdkVersion="18" />
<span style="color:#ff0000;"><uses-permission android:name="android.permission.FLASHLIGHT"/></span>
<span style="color:#ff0000;"><uses-permission android:name="android.permission.VIBRATE"/></span>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.notificationdemo.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

</manifest>