使用android中的AIDL让Service与Activity通信

bsp;int N = mCallbacks.beginBroadcast();        try {            for (int i = 0; i < N; i++) {                mCallbacks.getBroadcastItem(i).showResult(i);            }        } catch (RemoteException e) {            Log.e(TAG, "", e);        }        mCallbacks.finishBroadcast();    }     private Handler mHandler = new Handler() {         @Override        public void handleMessage(Message msg) {            callBack();            super.handleMessage(msg);        }    };} 然后是activity: package com.zhang.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 com.zhang.test.service.ICallback;import com.zhang.test.service.IService;import com.zhang.test.service.MainService; public class MainActivity extends Activity {     private static final String TAG = "MainActivity";     private IService mService;     /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        Intent i = new Intent(this, MainService.class);        bindService(i, mConnection, Context.BIND_AUTO_CREATE);    }     @Override    protected void onDestroy() {        if(mService!=null){            try {                mService.unregisterCallback(mCallback);            } catch (RemoteException e) {                Log.e(TAG, "", e);            }        }        //destroy的时候不要忘记unbindService        unbindService(mConnection);        super.onDestroy();    }     /**     * service的回调方法     */    private ICallback.Stub mCallback = new ICallback.Stub() {