推送

//以下代码是完成一个简单的推送

package com.example.notificationservice;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

public class MainActivity extends Activity implements OnClickListener {

private Button btnStart;

private Button btnStop;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

initView();

}

private void initView() {

btnStart = (Button) findViewById(R.id.btnStart);

btnStop = (Button) findViewById(R.id.btnStop);

btnStart.setOnClickListener(this);

btnStop.setOnClickListener(this);

}

@Override

public void onClick(View v) {

int id = v.getId();

if (id == R.id.btnStart) {

// 启动Service

Intent intent = new Intent();

intent.setAction("ymw.MY_SERVICE");

startService(intent);

}

if (id == R.id.btnStop) {

// 关闭Service

Intent intent = new Intent();

intent.setAction("ymw.MY_SERVICE");

stopService(intent);

}

}

@Override

public void onBackPressed() {

System.exit(0);

super.onBackPressed();

}

}

//Service

import android.app.Notification;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.app.Service;

import android.content.Context;

import android.content.Intent;

import android.os.IBinder;

public class NotificationService extends Service {

// 获取消息线程

private MessageThread messageThread = null;

// 点击查看

private Intent messageIntent = null;

private PendingIntent messagePendingIntent = null;

// 通知栏消息

private int messageNotificationID = 1000;

private Notification messageNotification = null;

private NotificationManager messageNotificatioManager = null;

public IBinder onBind(Intent intent) {

return null;

}

@Override

public int onStartCommand(Intent intent, int flags, int startId) {

// 初始化

messageNotification = new Notification();

messageNotification.icon = R.drawable.ic_launcher;

messageNotification.tickerText = "新消息";

messageNotification.defaults = Notification.DEFAULT_SOUND;

messageNotificatioManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

messageIntent = new Intent(this, MainActivity.class);

messagePendingIntent = PendingIntent.getActivity(this, 0,

messageIntent, 0);

// 开启线程

messageThread = new MessageThread();

messageThread.isRunning = true;

messageThread.start();

return super.onStartCommand(intent, flags, startId);

}

/**

* 从服务器端获取消息

*

*/

class MessageThread extends Thread {

// 设置是否循环推送

public boolean isRunning = true;

public void run() {

// while (isRunning) {

try {

// 间隔时间

Thread.sleep(1000);

// 获取服务器消息

String serverMessage = getServerMessage();

if (serverMessage != null && !"".equals(serverMessage)) {

// 更新通知栏

messageNotification.setLatestEventInfo(

getApplicationContext(), "新消息", "您有新消息。"

+ serverMessage, messagePendingIntent);

messageNotificatioManager.notify(messageNotificationID,

messageNotification);

// 每次通知完，通知ID递增一下，避免消息覆盖掉

messageNotificationID++;

}

} catch (InterruptedException e) {

e.printStackTrace();

}

// }

}

}

@Override

public void onDestroy() {

// System.exit(0);

messageThread.isRunning = false;

super.onDestroy();

}

/**

* 模拟发送消息

*

* @return 返回服务器要推送的消息，否则如果为空的话，不推送

*/

public String getServerMessage() {

return "NEWS!";

}

}

//AndroidManifest文件的配置

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.example.notificationservice"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="8"

android:targetSdkVersion="19" />

<application

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<activity

android:name="com.example.notificationservice.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>

<service android:name="NotificationService" >

<intent-filter>

<action android:name="ymw.MY_SERVICE" />

</intent-filter>

</service>

</application>

<uses-permission android:name="android.permission.VIBRATE" />

</manifest>

//xml文件

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

<Button

android:id="@+id/btnStart"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="通知" />

<Button

android:id="@+id/btnStop"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="清除" />

</LinearLayout>