基于百度地图的android地理位置获取

通过手机获取GPS信息，然后把利用GPS经纬度查询相应的地理位置信息。

1、利用android自带API实现，经过测试基本没有结果。留作参考。关键代码如下：

Geocoder geocoder=new Geocoder(GotoMyLocationActivity.this); //        Geocoder geocoder = new Geocoder(this, Locale.CHINA);                       try {                //Thread.sleep(2000);                places = geocoder.getFromLocation(latitude, longitude, 5);               // Thread.sleep(2000);                Toast.makeText(GotoMyLocationActivity.this, places.size()+"", Toast.LENGTH_LONG).show();                System.out.println(places.size()+"");         } catch (Exception e) {                  e.printStackTrace();        }

 String placename = "";        if (places != null && places.size() > 0) {                // placename=((Address)places.get(0)).getLocality();                //一下的信息将会具体到某条街                //其中getAddressLine(0)表示国家，getAddressLine(1)表示精确到某个区，getAddressLine(2)表示精确到具体的街                placename = ((Address) places.get(0)).getAddressLine(0) + ", " + System.getProperty("line.separator")                                + ((Address) places.get(0)).getAddressLine(1) + ", "                                + ((Address) places.get(0)).getAddressLine(2);                Toast.makeText(GotoMyLocationActivity.this, placename, Toast.LENGTH_LONG).show();                       }else{         Toast.makeText(GotoMyLocationActivity.this, "无法获取地理信息", Toast.LENGTH_LONG).show();        }

2、利用百度地图API实现

关键代码：

// GPS编码成地理位置// 初始化搜索模块，注册事件监听// 把gps信号转成百度地图坐标JWD jwd = GPSToBaiDu.getData(longitude+"",latitude+"");//LatLng ptCenter = new LatLng(latitude, longitude);ptCenter = new LatLng(Double.parseDouble(jwd.getY()), Double.parseDouble(jwd.getX()));

mSearch.reverseGeoCode(new ReverseGeoCodeOption().location(ptCenter));mSearch.setOnGetGeoCodeResultListener(new OnGetGeoCoderResultListener() {@Overridepublic void onGetReverseGeoCodeResult(ReverseGeoCodeResult result) {if (result == null|| result.error != SearchResult.ERRORNO.NO_ERROR) {Toast.makeText(GotoMyLocationActivity.this, "抱歉，未能找到结果",Toast.LENGTH_LONG).show();return;}Toast.makeText(GotoMyLocationActivity.this,result.getAddress(), Toast.LENGTH_LONG).show();mAddr = result.getAddress();

3、利用web api实现

关键代码：

/** *  * @param latitude 纬度 * @param longitude经度 * @return ReturnValue 返回地址相关信息 */public static ReturnValue geocoding(String latitude, String longitude) {//String l = "http://api.map.baidu.com/geocoder/v2/?ak=E4805d16520de693a3fe707cdc962045&location=39.983424,116.322987&output=json&pois=1";//ak mean the key.you should apply it from baidu.String key = "XXXXXXXXXXXXXXXXX";String url = "http://api.map.baidu.com/geocoder/v2/" +"?ak="+key+"&location="+latitude+","+longitude+"&output=json&pois=1";ReturnValue rv = httpRequest(url,"GET");if(null==rv)return null;return rv;}

demo下载地址：http://download.csdn.net/detail/u014600432/8184399

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