Android 编写 Service 入门

package="com.easymorse" android:versionCode="1" android:versionName="1.0">

< android:name=".LocalServiceDemoActivity">

android:label="@string/app_name">

android:name="android.intent.category.LAUNCHER">

android:name="CountService">

android:minsdkversion="3">

Acitity代码不再通过startSerivce和stopService启动关闭服务，另外，需要通过ServiceConnection的内部类实现来连接Service和Activity。

package com.easymorse;

import android.app.Activity;

import android.content.ComponentName;

import android.content.Intent;

import android.content.ServiceConnection;

import android.os.Bundle;

import android.os.IBinder;

import android.util.Log;

public class LocalServiceDemoActivity extends Activity {

private ServiceConnection serviceConnection = new ServiceConnection() {

@Override

public void onServiceConnected(ComponentName name, IBinder service) {

countService = (ICountService) service;

Log.v("CountService", "on serivce connected, count is "

+ countService.getCount());

}

@Override

public void onServiceDisconnected(ComponentName name) {

countService = null;

}

};

private ICountService countService;

/** Called when the activity is first created. */