Android筆記 Activity和Service的通信

Activity和Service的Bind通信方式
Activity的代碼

import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;

public class TestActivity extends Activity{
    private TestService mService;
    private ServiceConnection conn=new ServiceConnection() {

        @Override
        public void onServiceDisconnected(ComponentName name) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onServiceConnected(ComponentName name, IBinder binder) {
            //獲取TestService類
            mService=((TestService.MyBinder)binder).getService();
            //TestService的getString();方法
            mService.getString();

        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        init();
    }
    private void init(){
        Intent intent=new Intent(this, TestService.class);
        bindService(intent, conn, Context.BIND_AUTO_CREATE);
    }

}

Service的代碼

package com.aikeri.overload.service;

import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;

public class TestService extends Service{

    public String getString(){
        return "";

    }
    @Override
    public IBinder onBind(Intent arg0) {
        return new MyBinder();
    }
    public class MyBinder extends Binder{
        public TestService getService(){
            return TestService.this;

        }
    }
}