Android Service 启动和停止服务

activity_main.xml

　　定义两个Button控件，start_service和stop_service。

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/activity_main"
tools:context=".MainActivity">

<Button
android:id="@+id/start_service"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Start Service"/>

<Button
android:id="@+id/stop_service"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Stop Service"/>
</LinearLayout>

MainActivity.java

　　同样定义两个Button控件start_service和stop_service，并设置监听器，然后用Intent对象进行通信。

package jiangbin.servicetest;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity implements View.OnClickListener{

private Button startService;
private Button stopService;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startService = (Button) findViewById(R.id.start_service);
stopService = (Button) findViewById(R.id.stop_service);
startService.setOnClickListener(this);
stopService.setOnClickListener(this);
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.start_service:
Intent startIntent = new Intent(this, MyService.class);
startService(startIntent);
break;
case R.id.stop_service:
Intent stopIntent = new Intent(this, MyService.class);
stopService(stopIntent);
default:
break;
}
}
}

MyService.java

　　定义Myservice类

　　　　onCreate()在服务创建时候调用；

　　　　onStartCommand()在服务创建的时候调用；

　　　　onDestory()在服务销毁的时候调用。

package jiangbin.servicetest;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;

public class MyService extends Service {
@Override
public IBinder onBind(Intent intent){
return null;
}

@Override
public void onCreate() {
super.onCreate();
Log.d("Myservice", "onCreate");
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d("Myservice", "onStart");
return super.onStartCommand(intent, flags, startId);

}

@Override
public void onDestroy() {
super.onDestroy();
Log.d("Myservice", "onDestory");
}
}