安卓绑定本地服务Service并与之通信

效果

代码

1.主Activity

package com.example.test2.myapplication.service;

import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.example.test2.myapplication.R;

/**
* Created by Derek on 2017/2/18.
* 绑定本地服务Service并与之通信
*/

public class BindServiceTest extends AppCompatActivity implements View.OnClickListener {

private Button bind;
private Button unbind;
private Button getservicestatus;

BindService.MyBinder binder;
ServiceConnection serviceConnection = new ServiceConnection() {
//当Activity和service连接成功时，回调该方法
@Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
Log.d("GsonUtils", "onServiceConnected");
binder = (BindService.MyBinder) iBinder;
}

@Override
public void onServiceDisconnected(ComponentName componentName) {
Log.d("GsonUtils", "onServiceDisconnected");

}
};
Intent intent;
private TextView textView8;
private TextView count;

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.bindservicetest);
initView();
//        intent = new Intent();

intent = new Intent(this, BindService.class);
intent.setAction("com.example.test2.myapplication.service.Bind_Service");
}

private void initView() {
bind = (Button) findViewById(R.id.bind);
unbind = (Button) findViewById(R.id.unbind);
getservicestatus = (Button) findViewById(R.id.getservicestatus);

bind.setOnClickListener(this);
unbind.setOnClickListener(this);
getservicestatus.setOnClickListener(this);
textView8 = (TextView) findViewById(R.id.textView8);
textView8.setOnClickListener(this);
count = (TextView) findViewById(R.id.count);
count.setOnClickListener(this);
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bind:
//绑定Service
bindService(intent, serviceConnection, BIND_AUTO_CREATE);
break;
case R.id.unbind:
//解除绑定Service
unbindService(serviceConnection);
break;
case R.id.getservicestatus:
//不能直接设置int的值
//count.setText(binder.getCount());
//获取并显示Service的count值
count.setText("Service的count值为：" +binder.getCount());
Toast.makeText(this, "Service的count值为：" + binder.getCount(), Toast.LENGTH_SHORT).show();
break;
}
}
}

2.服务

package com.example.test2.myapplication.service;

import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.util.Log;

/**
* Created by Derek on 2017/2/18.
*/

public class BindService extends Service {

int count;
boolean quit;

//MyBinder通过继承Binder来实现IBinder类
public class MyBinder extends Binder {
public int getCount() {
//获取service的运行状态值：count
return count;
}
}

//定义onBind方法所返回的对象
private MyBinder binder = new MyBinder();

@Nullable
@Override
public IBinder onBind(Intent intent) {
Log.d("GsonUtils", "onBind");
//返回IBinder对象
return binder;
}

@Override
public void onCreate() {
super.onCreate();
//启动一条线程，动态的修改count的状态值
new Thread() {
@Override
public void run() {
super.run();
while (!quit) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
count++;
}
}
}.start();
}

@Override
public boolean onUnbind(Intent intent) {
Log.d("GsonUtils", "onUnbind");
return true;
}

//service被关闭时
@Override
public void onDestroy() {
super.onDestroy();
//停止线程任务的执行
this.quit = true;
Log.d("GsonUtils", "onDestroy");
}
}

布局xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<Button
android:id="@+id/bind"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="bind"/>
<Button
android:id="@+id/unbind"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="unbind"/>
<Button
android:id="@+id/getservicestatus"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="getservicestatus"/>
<TextView
android:id="@+id/textView8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Service的count值动态值"
android:textSize="26dp"/>
<TextView
android:textColor="#f00"
android:id="@+id/count"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="count"
android:textSize="26dp"/>

</LinearLayout>

AndroidManifest.xml

<service android:name="com.example.test2.myapplication.service.BindService">
<intent-filter>
<action android:name="com.example.test2.myapplication.service.Bind_Service"></action>
</intent-filter>
</service>