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();
                }
            }
        });


    }
}