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：

<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：

<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