package com.example.aidl.calculate;

interface CalculateInterface {
  double doCalculate(double a, double b);
 }

 package com.example.aidl.calculate;
 
interface CalculateInterface {
   double doCalculate(double a, double b);
 }

 package com.example.calculate;

import com.example.aidl.calculate.CalculateInterface;
import com.example.aidl.calculate.CalculateInterface.Stub;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;

public class CalculateService extends Service {
  
  private static final String              TAG            =  "CalculateService";
  
  @Override
  public IBinder onBind(Intent arg0) {
    // TODO Auto-generated method stub
    logE("onBind()");
    return mBinder;
  }
  
  @Override
  public void onCreate() {
    // TODO Auto-generated method stub
    logE("onCreate()");
    super.onCreate();
  }
  
  @Override
  public void onStart(Intent intent, int startId) {
    // TODO Auto-generated method stub
    logE("onStart()");
    super.onStart(intent, startId);
  }
  
  @Override
  public boolean onUnbind(Intent intent) {
    // TODO Auto-generated method stub
    logE("onUnbind()");
    return super.onUnbind(intent);
  }
  
  @Override
  public void onDestroy() {
    // TODO Auto-generated method stub
    logE("onDestroy()");
    super.onDestroy();
  }
  
  private static void logE(String str) {
    Log.e(TAG, "--------" + str + "--------");
  }
  
  private final CalculateInterface.Stub mBinder = new CalculateInterface.Stub() {
    
    @Override
    public double doCalculate(double a, double b) throws RemoteException {
      // TODO Auto-generated method stub
      Log.e("Calculate", "远程计算中");
      Calculate calculate = new Calculate();
      double answer = calculate.calculateSum(a, b);
      return answer;
    }
  };
}

package com.example.calculate;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.graphics.Color;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.example.aidl.calculate.CalculateInterface;
import com.example.aidlcalculatedemoclient.R;

public class CalculateClient extends Activity {
  private static final String         TAG            =      "CalculateClient";
  
  private       Button         btnCalculate;
  
  private       EditText        etNum1;
  
  private         EditText        etNum2;
  
  private       TextView        tvResult;
  
  private        CalculateInterface   mService;
  
  private       ServiceConnection    mServiceConnection = new ServiceConnection() {
    
    @Override
    public void onServiceDisconnected(ComponentName name) {
      // TODO Auto-generated method stub
      logE("disconnect service");
      mService = null;
    }
    
    @Override
    public void onServiceConnected(ComponentName name, IBinder service) {
      // TODO Auto-generated method stub
      logE("connect service");
      mService = CalculateInterface.Stub.asInterface(service);
    }
  };
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    
    Bundle args = new Bundle();
    Intent intent = new Intent("com.example.calculate.CalculateService");
    intent.putExtras(args);
    bindService(intent, mServiceConnection, Context.BIND_AUTO_CREATE);
    
    etNum1 = (EditText) findViewById(R.id.et_num_one);
    etNum2 = (EditText) findViewById(R.id.et_num_two);
    
    tvResult = (TextView) findViewById(R.id.tv_result);
    
    btnCalculate = (Button) findViewById(R.id.btn_cal);
    
    btnCalculate.setOnClickListener(new View.OnClickListener() {
      
      @Override
      public void onClick(View v) {
        // TODO Auto-generated method stub
        
        logE("开始远程运算");
        try {
          double num1 = Double.parseDouble(etNum1.getText().toString());
          double num2 = Double.parseDouble(etNum2.getText().toString());
          String answer = "计算结果：" + mService.doCalculate(num1, num2);
          tvResult.setTextColor(Color.BLUE);
          tvResult.setText(answer);
              
        } catch (RemoteException e) {
        }
      }
    });
  }
  
  private void logE(String str) {
    Log.e(TAG, "--------" + str + "--------");
  }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.example.aidlcaculatedemoserver"
  android:versionCode="1"
  android:versionName="1.0" >

  <uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />

  <application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
      android:name="com.example.aidlcaculatedemoserver.MainActivity"
      android:label="@string/app_name" >
      <intent-filter>
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
    </activity>
    <service android:name="com.example.calculate.CalculateService">
      <intent-filter>
        <action android:name="com.example.calculate.CalculateService" />
      </intent-filter>
    </service>
  </application>

</manifest>