上次我们一块研究下了最基本的POI检索，今天我们来看下，，个人觉得比较有用的公交线路检索。
下面我们看下这个类中的方法
程序包com.baidu.mapapi.search.busline
BusLineResult
公共交通信息查询结果
BusLineResult.BusStation
公交站点信息
BusLineResult.BusStep
公交路线分段信息
BusLineSearch
城市公交信息(包含地铁信息)查询 该接口用于查询整条公交线路信息 公交换乘路线查询请参看RoutePlanSearch
BusLineSearchOption
城市公交信息查询参数
>>usLineSearch
void()
释放检索对象资源
staticBusLineSearch()
获取一个新的检索实例
boolean(BusLineSearchOptionoption)
公交检索入口
void(OnGetBusLineSearchResultListenerlistener)
设置公交详情检索结果监听者
>>BusLineSearchOption参数如下
BusLineSearchOption(java.lang.Stringcity)
设置查询城市
BusLineSearchOption(java.lang.Stringuid)
设置公交路线uid.
结合POI搜索完成今天的例子
xml文件依旧仅仅包含一个listview
<RelativeLayout xmlns:android=""xmlns:tools=""android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".IndexActivity" ><ListViewandroid:id="@+id/mylistView"android:layout_width="wrap_content"android:layout_height="wrap_content" /></RelativeLayout>
package com.flyou.hellomap;import java.util.ArrayList;import java.util.List;import android.app.Activity;import android.os.Bundle;import android.view.KeyEvent;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.Toast;import com.baidu.mapapi.SDKInitializer;import com.baidu.mapapi.search.busline.BusLineResult;import com.baidu.mapapi.search.busline.BusLineResult.BusStation;import com.baidu.mapapi.search.busline.BusLineSearch;import com.baidu.mapapi.search.busline.BusLineSearchOption;import com.baidu.mapapi.search.busline.OnGetBusLineSearchResultListener;import com.baidu.mapapi.search.core.CityInfo;import com.baidu.mapapi.search.core.PoiInfo;import com.baidu.mapapi.search.core.SearchResult;import com.baidu.mapapi.search.poi.OnGetPoiSearchResultListener;import com.baidu.mapapi.search.poi.PoiCitySearchOption;import com.baidu.mapapi.search.poi.PoiDetailResult;import com.baidu.mapapi.search.poi.PoiResult;import com.baidu.mapapi.search.poi.PoiSearch;public class BusMapActivity extends Activity { private int totalpages = 0; private ListView listView = null; private PoiSearch poiSearch; private int currentPage = 0; ArrayAdapter<String> adapter = null; protected String busLineId; private BusLineSearch buslineSearch ; @Override protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);// 在使用SDK各组件之前初始化context信息，传入ApplicationContext// 注意该方法要再setContentView方法之前实现SDKInitializer.initialize(getApplicationContext());setContentView(R.layout.activity_index);listView = (ListView) findViewById(R.id.mylistView);// 第一步，创建POI检索实例poiSearch = PoiSearch.newInstance();// 第三步，设置POI检索监听者；poiSearch.setOnGetPoiSearchResultListener(poiListener);// 第一步，创建Busline检索实例buslineSearch = BusLineSearch.newInstance();// 第三步，设置<span style="font-family: Arial, Helvetica, sans-serif;">Busline</span><span style="font-family: Arial, Helvetica, sans-serif;">检索监听者；</span>buslineSearch.setOnGetBusLineSearchResultListener(busLineListener);} <span style="color:#ff0000;"> OnGetBusLineSearchResultListener busLineListener =new OnGetBusLineSearchResultListener() {@Overridepublic void onGetBusLineResult(BusLineResult result) {String title;List<BusStation> stations = result.getStations();List<String> datas=new ArrayList<String>();for (BusStation busStation : stations) {title = busStation.getTitle();datas.add(title);}</span>listView.setAdapter(new ArrayAdapter<String>(BusMapActivity.this, android.R.layout.simple_list_item_1, datas));} }; // 第二步，创建POI检索监听者； OnGetPoiSearchResultListener poiListener = new OnGetPoiSearchResultListener() {public void onGetPoiResult(PoiResult result) {// 获取POI检索结果if (result == null || result.error == SearchResult.ERRORNO.RESULT_NOT_FOUND) {Toast.makeText(BusMapActivity.this, "未找到结果", Toast.LENGTH_LONG).show();return;}if (result.error == SearchResult.ERRORNO.NO_ERROR) {List<PoiInfo> allPoi = result.getAllPoi();totalpages = result.getTotalPageNum();String[] datas = new String[10];//遍历所有POI，找到类型为公交线路的POI<span style="color:#ff0000;"> for (PoiInfo poi : result.getAllPoi()) {if (poi.type == PoiInfo.POITYPE.BUS_LINE ||poi.type == PoiInfo.POITYPE.SUBWAY_LINE) {//说明该条POI为公交信息，获取该条POI的UIDbusLineId = poi.uid;break;}}//如下代码为发起检索代码，定义监听者和设置监听器的方法与POI中的类似buslineSearch .searchBusLine((new BusLineSearchOption().city("开封").uid(busLineId)));</span>}if (result.error == SearchResult.ERRORNO.AMBIGUOUS_KEYWORD) {// 当输入关键字在本市没有找到，但在其他城市找到时，返回包含该关键字信息的城市列表String strInfo = "在";for (CityInfo cityInfo : result.getSuggestCityList()) {strInfo += cityInfo.city;strInfo += ",";}strInfo += "找到结果";Toast.makeText(BusMapActivity.this, strInfo, Toast.LENGTH_LONG).show();}}public void onGetPoiDetailResult(PoiDetailResult result) {// 获取Place详情页检索结果} }; @Override protected void onDestroy() {super.onDestroy();// 在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理poiSearch.destroy(); } @Override protected void onResume() {super.onResume();// 在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理 } @Override protected void onPause() {super.onPause();// 在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理 } @Override public boolean onKeyDown(int keyCode, KeyEvent event) {switch (keyCode) {case KeyEvent.KEYCODE_MENU:/*** 范围检索 // 这是范围 LatLngBounds.Builder b = new LatLngBounds.Builder();* b.include(new LatLng(39.976446, 116.320331)); b.include(new* LatLng(39.900766, 116.32838)); b.include(new LatLng(39.910065,* 116.491081)); b.include(new LatLng(39.976004, 116.475558));* LatLngBounds build = b.build(); // 第四步，发起检索请求；* poiSearch.searchInBound(new* PoiBoundSearchOption().bound(build).keyword* ("美食").pageNum(currentPage));*/<span style="color:#ff0000;"> poiSearch.searchInCity((newPoiCitySearchOption()).city("开封").keyword("33").pageNum(currentPage));</span>/*** poiSearch.searchNearby(new PoiNearbySearchOption() .keyword("大学")* .location(new LatLng(34.82336,114.31496)) .radius(3000)* );//可以为定位的坐标也可自己制定*/currentPage++;if (currentPage == totalpages) {currentPage = 0;}break;}return super.onKeyDown(keyCode, event); }}
运行结果为开封市33路的线路
人总是珍惜未得到的，而遗忘了所拥有的
