AIDL--------应用之间的通信接口

在下面例子中04Service中添加aidl包包里定义好接口 接口文件名后缀为.aidl

package com.example.aidl;

interface IRemoteService
{
void print(String msg);
String getName();

}

在04 client中也有这样一个包 这个包就成为一个接口   Service里实现接口  client中可以调用注意

Service中定义好service的action  client中绑定服务时用这个action

<service android:name=".RemoteService">
<intent-filter >
<action android:name="com.example.service04aidl.RemoteService"/>
</intent-filter>
</service>

绑定时用到

bindService(new Intent("com.example.service04aidl.RemoteService"),conn,BIND_AUTO_CREATE);

客户端每次绑定都会创建一个与客户端activity绑定的Service  activity销毁服务也会销毁

package com.example.service04_client;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.view.View;
import android.widget.Toast;

import com.example.aidl.IRemoteService;

public class MainActivity extends Activity {

    IRemoteService remoteService;
    ServiceConnection conn=new ServiceConnection() {        
        @Override
        public void onServiceDisconnected(ComponentName name) {

        }
        
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            remoteService=IRemoteService.Stub.asInterface(service);    
        }
    };
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        bindService(new Intent("com.example.service04aidl.RemoteService"),conn,BIND_AUTO_CREATE);
    }
    public void print(View v) throws RemoteException
    {
        if(remoteService!=null)
        remoteService.print("hello,service");
    }
    public void getRemoteName(View v) throws RemoteException
    {
        if(remoteService!=null)
        Toast.makeText(getApplicationContext(), remoteService.getName(), 1).show();
    }
    
}

package com.example.service04aidl;

import com.example.aidl.IRemoteService;

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 {

    private IRemoteService.Stub stub=new IRemoteService.Stub() {    
        @Override
        public void print(String msg) throws RemoteException {
            Log.i("debug", "RemoteService---"+msg);
        }
        @Override
        public String getName() throws RemoteException {
            return "RemoteService";
        }
    };
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return stub;
    }

}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.service04aidl"
    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.service04aidl.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=".RemoteService">
            <intent-filter >
                <action android:name="com.example.service04aidl.RemoteService"/>
            </intent-filter>
        </service>
    </application>

</manifest>

package com.example.service04_client;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.view.View;
import android.widget.Toast;

import com.example.aidl.IRemoteService;

public class MainActivity extends Activity {

    IRemoteService remoteService;
    ServiceConnection conn=new ServiceConnection() {        
        @Override
        public void onServiceDisconnected(ComponentName name) {

        }
        
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            remoteService=IRemoteService.Stub.asInterface(service);    
        }
    };
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        bindService(new Intent("com.example.service04aidl.RemoteService"),conn,BIND_AUTO_CREATE);
    }
    public void print(View v) throws RemoteException
    {
        if(remoteService!=null)
        remoteService.print("hello,service");
    }
    public void getRemoteName(View v) throws RemoteException
    {
        if(remoteService!=null)
        Toast.makeText(getApplicationContext(), remoteService.getName(), 1).show();
    }
    
}