Service的基本的用法

（1.）这边是Activity对Service操作的类
import android.os.Bundle;
import android.os.IBinder;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
/**
*
* @项目名：ServiceTest_demo1
* @类名称：MainActivity
* @类描述： 服务基本用法
* @创建人：HXF
* @修改人：
* @创建时间：2015-8-13 上午11:22:54
* @version
*
*/
public class MainActivity extends Activity implements OnClickListener {

private Button startService;private Button stopService;private Button bindService;private Button unbindService;/** 拿到服务的对象 */private MyService.DownLoadBinder downLoadBinder;/** 匿名类，里面的方法在成功绑定的时候和解除绑定的时候调用 */private ServiceConnection connection = new ServiceConnection() {    @Override    public void onServiceConnected(ComponentName name, IBinder service) {        downLoadBinder = (MyService.DownLoadBinder)service;        downLoadBinder.startDownload();        downLoadBinder.getProgress();    }    @Override    public void onServiceDisconnected(ComponentName name) {    }};@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    init();}/** 初始化控件 */private void init() {    startService = (Button) findViewById(R.id.start_sercice);    stopService = (Button) findViewById(R.id.stop_sercice);    bindService = (Button) findViewById(R.id.bind_sercice);    unbindService = (Button) findViewById(R.id.UnBind_sercice);    startService.setOnClickListener(this);    stopService.setOnClickListener(this);    bindService.setOnClickListener(this);    unbindService.setOnClickListener(this);}@Overridepublic void onClick(View v) {    switch (v.getId()) {    case R.id.start_sercice:        /** 开启服务 */        Intent startIntent = new Intent(this,MyService.class);        startService(startIntent);        break;    case R.id.stop_sercice:        /** 停止服务 */        Intent stopIntent = new Intent(this,MyService.class);        stopService(stopIntent);        break;    case R.id.bind_sercice:        /** 绑定服务 */        Intent bindIntent = new Intent(this,MyService.class);        bindService(bindIntent, connection, BIND_AUTO_CREATE);        break;    case R.id.UnBind_sercice:        /** 解开绑定服务 */        unbindService(connection);        break;    default:        break;    }}

}

（2.）继承Service解释一些简单的方法的使用
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;
/* 服务的基本用法和方法的解释 /
public class MyService extends Service{

private DownLoadBinder mBinder = new DownLoadBinder();@Overridepublic IBinder onBind(Intent intent) {    return mBinder;}/** 会在服务创建的时候调用 */@Overridepublic void onCreate() {    super.onCreate();    Log.d("MyService", "onCreate executed");}/** 会在每次服务启动的时候调用 */@Overridepublic int onStartCommand(Intent intent, int flags, int startId) {    Log.d("MyService", "onStartCommand executed");    return super.onStartCommand(intent, flags, startId);}/** 会在每次服务销毁的时候调用 */@Overridepublic void onDestroy() {    super.onDestroy();    Log.d("MyService", "onDestroy executed");}/** *  * @项目名：ServiceTest_demo1  * @类名称：DownLoadBinder    * @类描述：   绑定服务与activity设置 * @创建人：HXF    * @修改人：     * @创建时间：2015-8-13 上午11:52:46   * @version     * */class DownLoadBinder extends Binder{    /** 开始下载 */    public void startDownload(){        System.out.println("开始下载---startDownload");    }    /** 查看下载进度 */    public int getProgress(){        System.out.println("查看下载进度---getProgress");        return 0;    }}

}