百度地图api周围的公交站这个功能是怎么实现的（例如周围500的公交站）

魅离儿 2015-01-03 05:43:04



				PoiSearch mPoiSearch = PoiSearch.newInstance();

				OnGetPoiSearchResultListener poiListener = new OnGetPoiSearchResultListener(){  

				    public void onGetPoiResult(PoiResult result){

				    	if (result == null || result.error == SearchResult.ERRORNO.RESULT_NOT_FOUND) {

				    		Toast.makeText(getApplicationContext(), "检索失败",

									Toast.LENGTH_LONG).show();

				            return;

				        }

				        if (result.error == SearchResult.ERRORNO.NO_ERROR) {  

				            mBaiduMap.clear();

				            ListIterator<PoiInfo> it=result.getAllPoi().listIterator();

				            int count=0;

				            while(it.hasNext()){

				            	Uid[count]=it.next();

				            	count++;

				            }

				        }

				    //获取POI检索结果  

				    }  

				    public void onGetPoiDetailResult(PoiDetailResult result){  

				    //获取Place详情页检索结果  

				    }  

				};

				mPoiSearch.setOnGetPoiSearchResultListener(poiListener);

				/*mPoiSearch.searchInCity((new PoiCitySearchOption())

					    .city("北京")  

					    .keyword("公交")  

					    .pageNum(20));*/

				mPoiSearch.searchInCity((new PoiCitySearchOption())  

					    .city(Present_location.my_present_location.getCity())  

					    .keyword("23路")

					    .pageNum(10));

				BusLineSearch mBusLineSearch = BusLineSearch.newInstance();

				OnGetBusLineSearchResultListener busListener = new OnGetBusLineSearchResultListener() {

					@Override

					public void onGetBusLineResult(BusLineResult result) {

						// TODO Auto-generated method stub

						if (result == null

								|| result.error == SearchResult.ERRORNO.RESULT_NOT_FOUND) {

							Toast.makeText(getApplicationContext(), "附近无公交车车站",

									Toast.LENGTH_LONG).show();

							return;

						}

						if (result.error == SearchResult.ERRORNO.NO_ERROR) {

							mBaiduMap.clear();

							// 创建PoiOverlay

							MyBusLineOverlay overlay = new MyBusLineOverlay(

									mBaiduMap);

							// 设置overlay可以处理标注点击事件

							mBaiduMap.setOnMarkerClickListener(overlay);

							// 设置PoiOverlay数据

							overlay.setData(result);

							// 添加PoiOverlay到地图中

							overlay.addToMap();

							overlay.zoomToSpan();

							return;

						}

						// 获取POI检索结果

					}

				};

				mBusLineSearch.setOnGetBusLineSearchResultListener(busListener);

				mBusLineSearch.searchBusLine(new BusLineSearchOption()

						.city(Present_location.my_present_location.getCity())

						.uid(Uid[0].uid));