【移動(dòng)應(yīng)用開發(fā)技術(shù)】Android中service的組件是什么

【移動(dòng)應(yīng)用開發(fā)技術(shù)】Android中service的組件是什么

MainActiivty.javapackage

com.yuanlp.servicedemo;

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.support.v7.app.AppCompatActivity;

import

android.view.View;

public

class

MainActivity

extends

AppCompatActivity

{

private

ServiceConnection

conn=new

ServiceConnection()

{

private

MyService

services=null;

@Override

//服務(wù)與活動(dòng)綁定時(shí)觸發(fā)

public

void

onServiceConnected(ComponentName

name,

IBinder

service)

{

MyService.MyBundler

bundler=

(MyService.MyBundler)

service;

//返回的是service里的那個(gè)bundler的實(shí)例

services

=

bundler.getService();

services.execute();

}

@Override

public

void

onServiceDisconnected(ComponentName

name)

{

//服務(wù)與活動(dòng)鏈接斷開時(shí)調(diào)用

}

};

@Override

protected

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

}

public

void

startService(View

view){

Intent

service

=

new

Intent(this,

MyService.class);

//startService(service);

bindService(service,conn,

Context.BIND_AUTO_CREATE);

}

public

void

stopServicess(View

view){

//

Intent

stopServices

=

new

Intent(this,

MyService.class);

//

stopService(stopServices);

unbindService(conn);

}

public

void

onDestroy(){

unbindService(conn);

//當(dāng)活動(dòng)銷毀時(shí)，取消綁定

super.onDestroy();

}

}Myservice.javapackage

com.yuanlp.servicedemo;

import

android.app.Service;

import

android.content.Intent;

import

android.os.Binder;

import

android.os.IBinder;

import

android.util.Log;

public

class

MyService

extends

Service

{

private

static

final

String

TAG

=

"MyService";

public

class

MyBundler

extends

Binder

{

MyService

getService(){

return

MyService.this;

//返回當(dāng)前的service對象

}

}

private

MyBundler

bundler=new

MyBundler();

public

MyService()

{

Log.d(TAG,

"MyService:

構(gòu)造方法");

}

@Override

public

IBinder

onBind(Intent

intent)

{

return

bundler;

}

public

void

onCreate(){

//再服務(wù)創(chuàng)建時(shí)啟用

super.onCreate();

}

/**

*

在服務(wù)啟動(dòng)的時(shí)候調(diào)用

*

@param

intent

*

@param

flags

*

@param

startId

*

@return

*/

public

int

onStartCommand(Intent

intent,int

flags,int

startId){

Log.d(TAG,

"onStartCommand:

");

return

super.onStartCommand(intent,flags,startId);

}

/**

*

在服務(wù)銷毀時(shí)調(diào)用

*/

public

void

onDestroy(){