AIDL学习笔记2之从Service获取地理位置

这个程序用到了百度地图的API，所以需要导入相应的包。下载地址： /2011/1219/20111219032516866.zip

之所以用百度地图API，是因为过google 的不怎么稳定，经测试，百度地图api还是比较稳定的。

怎么导网上有很多例子。

1、AIDL文件

ForMainActivity

package com.android.aidl;

interface ForMainActivity{
void performAction(double latitude, double longitude);
}
ForGetLocationService

package com.android.aidl;

import com.android.aidl.ForMainActivity;
interface ForGetLocationService{
void registCallback(ForMainActivity forMainActivity);
}
2、Service

package com.android.service;

import com.baidu.mapapi.BMapManager;
import com.baidu.mapapi.LocationListener;
import com.android.aidl.ForGetLocationService;
import com.android.aidl.ForMainActivity;
import com.android.util.Debugger;

import android.app.Service;
import android.content.Intent;
import android.location.Location;
import android.os.IBinder;
import android.os.RemoteException;

public class GetLocationService extends Service{

    private ForMainActivity callBack;

    private LocationListener locationListener = null;
    private BMapManager mapManager;

    @Override
    public void onCreate() {
        Debugger.debug("GetLocation Service onCreate().");
        init();
        super.onCreate();
    }

    @Override
    public void onDestroy() {
        Debugger.debug("GetLocation Service onDestroy().");
        if (mapManager != null) {
            mapManager.destroy();
            mapManager = null;
        }
        super.onDestroy();
    }

    @Override
    public void onRebind(Intent intent) {
        Debugger.debug("GetLocation Service onRebind().");
        super.onRebind(intent);
    }

    @Override
    public void onStart(Intent intent, int startId) {
        Debugger.debug("GetLocation Service onStart().");
        if (mapManager != null) {
            mapManager.getLocationManager().requestLocationUpdates(locationListener);
            mapManager.start();
        }
        super.onStart(intent, startId);
    }

    @Override
    public boolean onUnbind(Intent intent) {
        Debugger.debug("GetLocation Service onUnbind().");
        return super.onUnbind(intent);
    }

    @Override
    public IBinder onBind(Intent intent) {
        Debugger.debug("GetLocation Service onBind().");
        if (mapManager != null) {
            mapManager.getLocationManager().requestLocationUpdates(locationListener);
            mapManager.start();
        }
        return mBinder;
    }

    private void init(){
        // 初始化MapActivity
        mapManager = new BMapManager(getApplication());
        // init方法的第一个参数需填入申请的API Key
        mapManager.init("285B415EBAB2A92293E85502150ADA7F03C777C4", null);
        mapManager.start();

        locationListener = new LocationListener() {

            @Override
            public void onLocationChanged(Location location) {
                try {
                    callBack.performAction(location.getLatitude(), location.getLongitude());
                } catch (RemoteException e) {
                    e.printStackTrace();
                }
            }
        };
    }

    private final ForGetLocationService.Stub mBinder = new ForGetLocationService.Stub() {

        @Override
        public void registCallback(ForMainActivity forMainActivity)
                throws RemoteException {
            Debugger.debug("callback 赋值");
            callBack = forMainActivity;
        }
    };
}

3、Activity

private ForMainActivity.Stub callBack = new ForMainActivity.Stub() { 补充：移动开发 , Android ,