突然看到公司项目有个地方同时使用startService()和bindService()启动服务,做了个demo测试了一下,下面直接上代码:
Activity中:
package com.example.test3;
import android.app.Activity;
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.util.Log;
import com.example.service.ConnService;
public class ConnActivity extends Activity {
private static final String tag = "ConnActivity";
private MyServiceConnection mConn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_conn);
bindServiceMothod();
}
private void bindServiceMothod() {
Intent intent = new Intent(this, ConnService.class);
mConn = new MyServiceConnection();
startService(intent);
bindService(intent, mConn, Context.BIND_AUTO_CREATE);
}
private class MyServiceConnection implements ServiceConnection {
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
Log.i(tag, "====onServiceConnected----------------");
ConnService.MyBinder myBinder = (ConnService.MyBinder) service;
myBinder.sendMsg("我是Activity!");
}
@Override
public void onServiceDisconnected(ComponentName name) {
Log.i(tag, "====onServiceDisconnected----------------");
}
}
@Override
protected void onDestroy() {
super.onDestroy();
Log.i(tag,"====onDestroy-----------------");
if(mConn != null){
unbindService(mConn);
}
}
}
Service中(记得在Manifest配置):
package com.example.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;
/**
* user: uidq0530 ,date: 2017-04-05.
* description:
*
* @author xhunmon
*/
public class ConnService extends Service {
private static final String tag = "ConnService";
@Nullable
@Override
public IBinder onBind(Intent intent) {
Log.i(tag,"======onBind---------------------------");
return new MyBinder();
}
@Override
public void onCreate() {
super.onCreate();
Log.i(tag,"======onCreate---------------------------");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.i(tag,"======onStartCommand---------------------------");
return super.onStartCommand(intent, flags, startId);
}
@Override
public boolean onUnbind(Intent intent) {
Log.i(tag,"======onUnbind---------------------------");
return super.onUnbind(intent);
}
@Override
public void onDestroy() {
super.onDestroy();
Log.i(tag,"======onDestroy---------------------------");
}
public class MyBinder extends Binder{
public void sendMsg(String str){
Log.i(tag,"=====接受的数据为:"+str);
}
}
}
情况1,只是使用startService(),启动后退出,如下图:
情况2,只是使用bindService(),启动后退出,如下图:
情况3,同时使用用startService()和bindService(),启动后退出,如下图:
结论:当同时使用两个方法启动服务时,绑定的服务只是被解绑了,而没有被销毁!