android初接触之service2

在android初接触之service1基础上继续学习
将服务绑定在调用的service的客户类上：
在activity_main.xml中增加连个button用来控制启动绑定服务

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.example.test.MainActivity" >    <Button        android:id="@+id/startService"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_alignParentRight="true"        android:text="启动服务" />    <Button        android:id="@+id/destoryService"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/startService"        android:layout_alignRight="@+id/startService"        android:layout_below="@+id/startService"        android:text="注销服务" />    <Button        android:id="@+id/stopBind"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/destoryService"        android:layout_alignRight="@+id/destoryService"        android:layout_below="@+id/destoryService"        android:text="解除绑定" />    <Button        android:id="@+id/startBind"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/stopBind"        android:layout_alignRight="@+id/stopBind"        android:layout_below="@+id/stopBind"        android:text="绑定服务" /></RelativeLayout>

在MainActivity.java中实现了ServiceConnection

package com.example.test;import android.support.v7.app.ActionBarActivity;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.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class MainActivity extends ActionBarActivity implements OnClickListener, ServiceConnection {    private Button startService,destroyService,startBind,stopBind;    private Intent IntentService;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //创建调用服务的Intent        IntentService = new Intent(this,ServiceTest.class);        //获取button按钮        startService = (Button) findViewById(R.id.startService);        destroyService = (Button) findViewById(R.id.destoryService);        startBind = (Button) findViewById(R.id.startBind);        stopBind = (Button) findViewById(R.id.stopBind);        startService.setOnClickListener(this);        destroyService.setOnClickListener(this);        startBind.setOnClickListener(this);        stopBind.setOnClickListener(this);    }    @Override    public void onClick(View v) {        // TODO Auto-generated method stub        switch (v.getId()) {        case R.id.startService:            //启动服务            startService(IntentService);            break;        case R.id.destoryService:            //停止服务            stopService(IntentService);            break;        case R.id.startBind:            //绑定服务            bindService(IntentService, this, Context.BIND_AUTO_CREATE);            break;        case R.id.stopBind:            //解除绑定            unbindService(this);            break;        }    }    @Override    public void onServiceConnected(ComponentName name, IBinder service) {        // TODO Auto-generated method stub        System.out.println("绑定服务");    }    @Override    public void onServiceDisconnected(ComponentName name) {        // TODO Auto-generated method stub        //这个方法作用还不清楚，请读者自行使用，在这里不使用    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {        // Handle action bar item clicks here. The action bar will        // automatically handle clicks on the Home/Up button, so long        // as you specify a parent activity in AndroidManifest.xml.        int id = item.getItemId();        if (id == R.id.action_settings) {            return true;        }        return super.onOptionsItemSelected(item);    }}

在ServiceTest实现了OnBind方法

package com.example.test;import android.app.Service;import android.content.Intent;import android.os.Binder;import android.os.IBinder;public class ServiceTest extends Service {    //必须有返回值才能调用绑定方法    @Override    public IBinder onBind(Intent intent) {        // TODO Auto-generated method stub        System.out.println("绑定");        return new IBinderTest();    }    private class IBinderTest extends Binder{    }    @Override    public void onCreate() {        // TODO Auto-generated method stub        super.onCreate();        System.out.println("服务启动");    }    @Override    public void onDestroy() {        // TODO Auto-generated method stub        super.onDestroy();        System.out.println("服务注销");    }}