Activity和Service绑定

Activity和Service绑定后，可以方便Activity随时调用对应的Service里面的方法

绑定代码如下

Activity类代码：

[java] view plaincopy

<span style="font-size:16px;">package com.fox.Activity;

import com.fox.Activity.service.Service1;

import android.app.Activity;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.content.ServiceConnection;

import android.os.Bundle;

import android.os.IBinder;

import android.util.Log;

import android.view.View;

import android.widget.Button;

import android.widget.Toast;

public class Activity1 extends Activity {

private Button btn1 = null;

private static String LOG="mp3";

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

btn1 = (Button) findViewById(R.id.button1);

btn1.setOnClickListener(new btn1ClickListener());

//开始绑定

Intent intent = new Intent(Activity1.this,Service1.class);

bindService(intent, conn, Context.BIND_AUTO_CREATE);

}

private Service1 myservice = null;//绑定的service对象

//连接对象，重写OnserviceDisconnected和OnserviceConnected方法

public ServiceConnection conn= new ServiceConnection() {

@Override

public void onServiceDisconnected(ComponentName name) {

Log.i(LOG, "onServiceDisconnected>>>>>>>>");

myservice = null;

}

@Override

public void onServiceConnected(ComponentName name, IBinder service) {

Log.i(LOG, "onServiceConnected>>>>>>>>");

myservice = ((Service1.MyBinder)service).getService();

Log.i(LOG, myservice+">>>>>>>>");

}

};

class btn1ClickListener implements View.OnClickListener {

@Override

public void onClick(View v) {

unbindService(conn);

}

}

}</span>

Service类代码：

[java] view plaincopy

<span style="font-size:16px;">package com.fox.Activity.service;

import android.app.Service;

import android.content.Intent;

import android.os.Binder;

import android.os.IBinder;

import android.util.Log;

public class Service1 extends Service{

private final IBinder binder = new MyBinder();

private static final String LOG="mp3";

@Override

public IBinder onBind(Intent intent) {

Log.i(LOG, "onBind............");

return binder;

}

/**

* 该类是获得Service对象

* @author Administrator

*

*/

public class MyBinder extends Binder{

public Service1 getService(){

return Service1.this;

}

}

@Override

public void onCreate() {

Log.i(LOG, "oncreate............");

super.onCreate();

}

@Override

public void onStart(Intent intent, int startId) {

Log.i(LOG, "onstart............");

super.onStart(intent, startId);

}

@Override

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

Log.i(LOG, "onstartcommand............");

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

}

@Override

public void onDestroy() {

Log.i(LOG, "ondestory............");

super.onDestroy();

}

}

</span>

开始绑定调用方法A.bindService()--->S.onCreate--->S.onBind---->>A.onServiceConnected绑定成功，并获得Service对象

结束绑定按钮的监听事件-->>unbindService(conn)关闭连接对象-->>S.destory()销毁该service

注：结束绑定时是不会调用onServiceDisconnected()方法的;
http://blog.csdn.net/huqingwei0824/article/details/6869622