android开源项目-旅游记录

项目名字：AndTripLog-旅游日记

一个很好的学习定位的开源项目，用的是google的定位系统，

但是google的基站定位在国内很不稳定，基本处于不能用的状态

本着自己动手丰衣足食的精神，果断改成百度的定位系统，

写了一个百度定位的工具类：

 

import java.util.List;



import android.content.Context;

import android.content.Intent;

import android.content.SharedPreferences;

import android.os.Handler;

import android.os.Message;

import android.telephony.SmsManager;

import android.util.Log;

import android.widget.Toast;



import com.baidu.location.*;

public class LocationUtils {

    private Context context;

    private boolean isLocationupdate=false;

    private String locationInfo;

    private Handler mhandler;

    private BDLocation bdLocation;

    public LocationClient mLocationClient = null;

    public MyLocationListenner myListener = new MyLocationListenner();

    

	public LocationUtils(Context context,Handler myhandler){

		this.context=context;

		mhandler=myhandler;

	}

	

	class MyLocationListenner implements BDLocationListener{



		public void onReceiveLocation(BDLocation location) {

			// TODO Auto-generated method stub

			Log.d("AndTripLog","onReceiveLocation");

			if (location == null)

				return ;

			Log.d("AndTripLog","onReceiveLocation is not null");

			bdLocation=location;

			isLocationupdate=true;

			locationInfo="Latitude:"+location.getLatitude()+",Longitude:"+location.getLongitude();

			mhandler.sendEmptyMessage(0);

		}



		public void onReceivePoi(BDLocation poiLocation) {

			// TODO Auto-generated method stub

			if (poiLocation == null){

				return ; 

			}

		}

		

	}

	public String getLocationInfo(){

		return locationInfo;		

	}

	public BDLocation getLocation(){

		return bdLocation;

	}

	public void startLocation(){

		isLocationupdate=false;

		mLocationClient = new LocationClient(context);	

		setLocationOption();

		mLocationClient.registerLocationListener(myListener);

		Log.d("lostprevent","startLocation");

		mLocationClient.start();

	}

	public boolean isupdate(){

		return isLocationupdate;

	}

	public void stopLocation(){

		isLocationupdate=false;

		mLocationClient.stop();

	}

	private void setLocationOption(){

		LocationClientOption option = new LocationClientOption();

		option.setOpenGps(true);				

		option.setServiceName("com.baidu.location.service_v3.3");

		option.setPoiExtraInfo(false);	

        option.setAddrType("all");	

		option.setScanSpan(3000);

        option.setCoorType("bd09ll"); 

        option.setPriority(LocationClientOption.NetWorkFirst);   

		option.disableCache(true);		

		mLocationClient.setLocOption(option);

	}



}

相应的权限设置、需要添加的包见官方的介绍：

 

http://developer.baidu.com/map/geosdk-android-developv3.3.htm

通过此项目学习，可以很好的学习知识点：

1.定位系统

2.SQLite语句

3.文件保存

4.邮件发送

项目源码下载地址：

http://download.csdn.net/detail/txj8612/5353448