Android中aidl实现Activity与service进行通信和回调

service一直再运行，通过bindService拿到service的代理，并将自己到回调对象注册过去，就能实现调用service中的方法，和在service中调用本地activity到方法。做到了进程间通信。

ImyserviceManager.aidl

package com.test;

import com.test.Ilisten;

interface ImyserviceManager

{

int add(int a,int b);

String show();

void register(Ilisten
listen);

}

RemoteService.java

package com.test;

import android.app.Service;

import android.content.Intent;

import android.os.IBinder;

import android.os.RemoteException;

import android.util.Log;

public class RemoteService
extends Service

{

Ilisten myListener =
null;

public class ServiceImpl
extends ImyserviceManager.Stub

{

public
int add(int a,int b)throws
RemoteException

{

if(myListener
!=
null)

myListener.change("this is call back!");

return
(a+b);

}

public
String show()throws
RemoteException

{

return
"hello world!";

}

public
void register(Ilisten
listen)
throws RemoteException

{

// TODO Auto-generated method stub

myListener =
listen;

}

}

@Override

public IBinder onBind(Intent intent)

{

// TODO Auto-generated method stub

return
new ServiceImpl();

}

@Override

public int onStartCommand(Intent intent,
int flags,
int startId)
{

// TODO Auto-generated method stub

Log.i("test","I am running .......................");

return
super.onStartCommand(intent,
flags, startId);

}

}

Ilisten.aidl

package com.test;

interface Ilisten

{

void change(String a);

}

TestAidl.java

package com.test;

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.os.RemoteException;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

public class TestAidl
extends Activity

{

String str
= null;

private ImyserviceManager myManager;

Button myButton;

private TextView textView;

private Button button1;

private Button button2;

private ServiceConnection serviceConnection
=new ServiceConnection()

{

public
void onServiceConnected(ComponentName
name, IBinder service)

{

// TODO Auto-generated method stub+

myManager=ImyserviceManager.Stub.asInterface(service);

try
{

Log.i("test-------",myManager.show());

TextView textView=(TextView)findViewById(R.id.text);

textView.setText(str);

myManager.register(new myListener());

}
catch (RemoteException e)
{

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public
void onServiceDisconnected(ComponentName
name)

{

// TODO Auto-generated method stub

}

};

public class myListener
extends Ilisten.Stub

{

public
void change(String a)
throws RemoteException

{

// TODO Auto-generated method stub

button1.setText(a);

}

}

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

bindService(new Intent(TestAidl.this,
RemoteService.class), serviceConnection,
Context.BIND_AUTO_CREATE);

textView=(TextView)findViewById(R.id.text);

button1 =
(Button) findViewById(R.id.b1);

button1.setOnClickListener(new
View.OnClickListener()
{

public
void onClick(View v)

{

try
{

button1.setText(myManager.show());

//myManager.add(1, 2);

}
catch (RemoteException e)
{

// TODO Auto-generated catch block

e.printStackTrace();

}

}

});

button2=
(Button)findViewById(R.id.b2);

button2.setOnClickListener(new
View.OnClickListener()
{

public
void onClick(View v)

{

try
{

myManager.add(2, 3);

}
catch (RemoteException e)
{

// TODO Auto-generated catch block

e.printStackTrace();

}

}

});

}

}

http://blog.chinaunix.net/uid-25677340-id-2854775.html