赵雅智：service_bindService生命周期

案例演示

布局文件

<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"  

    tools:context="${packageName}.${activityClass}" >  

    <Button  

        android:id="@+id/btn_bind"  

        android:layout_width="match_parent"  

        android:layout_height="wrap_content"  

        android:layout_alignParentLeft="true"  

        android:layout_below="@+id/btn_stop"  

        android:onClick="click"  

        android:text="context.bindService" />  

    <Button  

        android:id="@+id/btn_unbind"  

        android:layout_width="match_parent"  

        android:layout_height="wrap_content"  

        android:layout_below="@+id/btn_bind"  

        android:onClick="click"  

        android:text="context.unbindService" />  

</RelativeLayout>

注冊service

<?xml version="1.0" encoding="utf-8"?>  

<manifest xmlns:android="http://schemas.android.com/apk/res/android"  

    package="com.example.android_servicedemo"  

    android:versionCode="1"  

    android:versionName="1.0" >  

    <uses-sdk  

        android:minSdkVersion="14"  

        android:targetSdkVersion="19" />  

    <application  

        android:allowBackup="true"  

        android:icon="@drawable/ic_launcher"  

        android:label="@string/app_name"  

        android:theme="@style/AppTheme" >  

        <activity  

            android:name="com.example.android_servicedemo.MainActivity"  

            android:label="@string/app_name" >  

            <intent-filter>  

                <action android:name="android.intent.action.MAIN" />  

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

            </intent-filter>  

        </activity>  

        <service  

            android:name="ServiceTese"  

            android:permission="com.example.permission.servers" >  

            <intent-filter>  

                <action android:name="com.example.serversdemo.action" />  

            </intent-filter>  

        </service>  

    </application>  

</manifest>

主activity

package com.example.android_servicedemo;


import android.app.Activity;
import android.app.Service;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.view.View;

public class MainActivity extends Activity {
	private Intent service;
	MyConn myConn;
	public static final String TAG = "MainActivity";

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		// 隐士意图的启动
		service = new Intent();
		service.setAction("com.example.serversdemo.action");
	}

	public void click(View v) {
		int id = v.getId();
		switch (id) {
		case R.id.btn_bind:
			// con:该參数是一个ServiceConnection对象。该对象用于监听訪问者与service之间的连接情况
			// flag:指定绑定时是否自己主动创建service(假设service还没创建)0：不自己主动创建。BIND_AUTO_CREATE自己主动创建
			myConn = new MyConn();
			this.bindService(service, myConn, Service.BIND_AUTO_CREATE);
			break;
		case R.id.btn_unbind:
			if (myConn != null) {
				this.unbindService(myConn);
			}
			break;
		default:
			break;
		}
	}

	class MyConn implements ServiceConnection {
		/**
		 * 当连接成功的时候回调此方法
		 */
		@Override
		public void onServiceConnected(ComponentName name, IBinder service) {
			// TODO Auto-generated method stub
			Log.i(TAG, "---------onServiceConnected" + name);
		}

		/**
		 * 当service所在的宿主矜持因为异常终止或因为其它原因终止，导致该service与訪问者之间断开连接的时候回调
		 */
		@Override
		public void onServiceDisconnected(ComponentName name) {
			Log.i(TAG, "---------onServiceDisconnected" + name);

		}

	}
}