运行截图
可以看到，不仅MyIntentService 和MainActivity所在的线程id不一样，而且onDestory()方法的得到了执行，说明MyIntentService在运行完毕后确实自动停止了。集开启线程和自动停止线程于一身。
MainActivity.java
package lbstest.example.com.lbs.ServiceTest;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import lbstest.example.com.lbs.R;
public class Main3Activity extends AppCompatActivity implements View.OnClickListener {
private MyService.DownloadBinder downloadBinder;
//创建一个ServiceConnection匿名类
private ServiceConnection connection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
downloadBinder = (MyService.DownloadBinder) service;
downloadBinder.startDownload();
downloadBinder.getProgress();
}
@Override
public void onServiceDisconnected(ComponentName name) {
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
Button bindService = (Button) findViewById(R.id.bing_service);
Button unbindService = (Button) findViewById(R.id.unbing_service);
Button startService = (Button) findViewById(R.id.start_service);
Button stopService = (Button) findViewById(R.id.stop_service);
Button start_intent_service = (Button) findViewById(R.id.start_intent_service);
start_intent_service.setOnClickListener(this);
startService.setOnClickListener(this);
stopService.setOnClickListener(this);
bindService.setOnClickListener(this);
unbindService.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bing_service:
Intent bindIntent = new Intent(this, MyService.class);
bindService(bindIntent, connection, BIND_AUTO_CREATE); //绑定服务
break;
case R.id.unbing_service:
unbindService(connection); //解绑服务
break;
case R.id.start_service:
Intent startIntent = new Intent(this, MyService.class);
startService(startIntent);//启动服务
break;
case R.id.stop_service:
Intent stopIntent = new Intent(this,MyService.class);
stopService(stopIntent);//停止服务
break;
case R.id.start_intent_service:
//打印主线程id
Log.d("MyIntentService","Thread is"+Thread.currentThread().getId());
Intent intentService = new Intent(this, MyIntentService.class);
startService(intentService);
break;
default:
break;
}
}
}
MyIntentService.java
package lbstest.example.com.lbs.ServiceTest;
import android.app.IntentService;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
/**
* Created by bummer on 2017/7/26.
*/
public class MyIntentService extends IntentService {
/**
* 首先要提供一个无参构造函数，在其内部调用其父类的有参构造函数
*/
public MyIntentService() {
super("MyIntentService"); //调用父类的有参构造函数
//打印当前线程的id
}
/**
* 在抽象的onHandleIntent()这个方法中可以去处理一些具体的逻辑，不用担心ANR问题，
* 因为这个方法已经是在子线程中运行的了
* @param intent
*/
@Override
protected void onHandleIntent( Intent intent) {
//打印当前线程的id
Log.d("MyIntentService","Thread is "+Thread.currentThread().getId());
}
public void onDestory(){
super.onDestroy();
Log.d("MyIntentService","onDestory executed");
Toast.makeText(this,"Thread is is"+Thread.currentThread().getId(),Toast.LENGTH_SHORT).show();
}
}
MyService.java
package lbstest.example.com.lbs.ServiceTest;
import android.app.Notification;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.graphics.BitmapFactory;
import android.os.Binder;
import android.os.IBinder;
import android.support.v7.app.NotificationCompat;
import android.util.Log;
import lbstest.example.com.lbs.R;
/**
* Created by bummer on 2017/7/26.
*/
public class MyService extends Service {
private DownloadBinder mBinder = new DownloadBinder();
@Override
public void onCreate() {
super.onCreate();
Log.d("MyService","onCreate executed");
Intent intent = new Intent(this,Main3Activity.class);
PendingIntent pi = PendingIntent.getActivity(this,0,intent,0);
Notification notification = new NotificationCompat.Builder(this)
.setContentTitle("This is content title")
.setContentText("This is content text")
.setWhen(System.currentTimeMillis())
.setSmallIcon(R.mipmap.ic_launcher)
.setLargeIcon(BitmapFactory.decodeResource(getResources(),R.mipmap.ic_launcher))
.setContentIntent(pi)
.build();
startForeground(1,notification); //将MyService变成一个前台服务，并在系统状态栏显示出来
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d("MyService", "onStartCommand executed");
return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy() {
super.onDestroy();
Log.d("MyService", "onDestroy executed");
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
class DownloadBinder extends Binder {
public void startDownload() {
Log.d("Myservice", "startDownload executed");
}
public int getProgress() {
Log.d("MyService", "getProgress");
return 0;
}
public IBinder onBind(Intent intent) {
return mBinder;
}
}
}
activity_main.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/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" />
<Button
android:id="@+id/bing_service"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Bind Service" />
<Button
android:id="@+id/unbing_service"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Unbind Service" />
<Button
android:id="@+id/start_intent_service"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="start_intent_service" />
</LinearLayout>