出现 leaked ServiceConnection 解决办法

在Android界面上调用service绑定方法，退出界面时候报告一堆错误 Activity has leaked ServiceConnection 等，应该重写 onDestroy方法，取消绑定，这样就ok了。

package com.jiuqi.testservice01;

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.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

public class MainActivity extends Activity {

private Button btn1;

private Button btn2;

private Button btn3;

private Button btn4;

private MyService myservice ;

public ServiceConnection serviceconnection = new ServiceConnection(){

@Override

public void onServiceDisconnected(ComponentName name){

myservice = null;

Toast.makeText(MainActivity.this, "MyService failed", Toast.LENGTH_SHORT).show();

}

@Override

public void onServiceConnected(ComponentName name, IBinder service){

myservice = ((MyService.MyBinder)service).getService();

Toast.makeText(MainActivity.this, "MyService connected", Toast.LENGTH_SHORT).show();

}

};

private OnClickListener btnClickListener = new OnClickListener(){

@Override

public void onClick(View v){

Intent intent = new Intent();

intent.setClass(MainActivity.this,MyService.class);

switch(v.getId()){

case R.id.button1:

startService(intent);

break;

case R.id.button2:

stopService(intent);

break;

case R.id.button3:

bindService(intent, serviceconnection, Context.BIND_AUTO_CREATE);

break;

case R.id.button4:

unbindService(serviceconnection);

break;

default:

break;

}

};

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

btn1 = (Button)findViewById(R.id.button1);

btn2 = (Button)findViewById(R.id.button2);

btn3 = (Button)findViewById(R.id.button3);

btn4 = (Button)findViewById(R.id.button4);

btn1.setOnClickListener(btnClickListener);

btn2.setOnClickListener(btnClickListener);

btn3.setOnClickListener(btnClickListener);

btn4.setOnClickListener(btnClickListener);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

getMenuInflater().inflate(R.menu.activity_main, menu);

return true;

}

@Override

protected void onDestroy(){

super.onDestroy();

unbindService(serviceconnection);

}

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