公交路线详细搜索
如何检索某一城市的公交路线图
实战案例：检索北京市公交路线717的路线
主要代码：
import com.baidu.mapapi.BMapManager;import com.baidu.mapapi.MKAddrInfo;import com.baidu.mapapi.MKBusLineResult;import com.baidu.mapapi.MKDrivingRouteResult;import com.baidu.mapapi.MKGeneralListener;import com.baidu.mapapi.MKPoiInfo;import com.baidu.mapapi.MKPoiResult;import com.baidu.mapapi.MKSearch;import com.baidu.mapapi.MKSearchListener;import com.baidu.mapapi.MKSuggestionResult;import com.baidu.mapapi.MKTransitRouteResult;import com.baidu.mapapi.MKWalkingRouteResult;import com.baidu.mapapi.MapActivity;import com.baidu.mapapi.MapView;import com.baidu.mapapi.RouteOverlay;import com.baidu.mapapi.TransitOverlay;import android.os.Bundle;import android.widget.Toast;public class MainActivity extends MapActivity {// 添加百度地图的相关控件private MapView mapView;// 加载地图的引擎private BMapManager bMapManager;// 百度地图的keyprivate String KeyString = "8C426377B3526B6BF3672C9BA3BB544D1E8289CD";// 用于位置检索、周边检索、范围检索、公交检索、驾乘检索、步行检索等private MKSearch mkSearch;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);mapView = (MapView) this.findViewById(R.id.bmapView);bMapManager = new BMapManager(MainActivity.this);// 必须要加载keybMapManager.init(KeyString, new MKGeneralListener() {public void onGetPermissionState(int arg0) {}public void onGetNetworkState(int arg0) {if (arg0 == 300) {Toast.makeText(MainActivity.this, "输入的key有错，请核实！！", 1).show();}}});this.initMapActivity(bMapManager);//实例化地图的查询类mkSearch = new MKSearch();mkSearch.init(bMapManager, new MySearchListener());//城市名,关键字mkSearch.poiSearchInCity("北京", "300");}public class MySearchListener implements MKSearchListener {public void onGetAddrResult(MKAddrInfo arg0, int arg1) {// TODO Auto-generated method stub}public void onGetBusDetailResult(MKBusLineResult arg0, int arg1) {// TODO Auto-generated method stubif(arg0==null||arg1!=0){Toast.makeText(MainActivity.this, "对不起，未找到结果！！", 1).show();return;}RouteOverlay routeOverlay = new RouteOverlay(MainActivity.this,mapView);routeOverlay.setData(arg0.getBusRoute());//获得公交线路图mapView.getOverlays().clear();//清除公交站点的标识 mapView.getOverlays().add(routeOverlay);mapView.invalidate();//采用动画形式描述公交站点 mapView.getController().animateTo(arg0.getBusRoute().getStart());}public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1) {// TODO Auto-generated method stub }/*** 获得公交线路图的Uid,并且根据此UID来发起公交线路详情的检索*/public void onGetPoiResult(MKPoiResult result, int type, int iError) {// TODO Auto-generated method stubif(result==null||iError!=0){Toast.makeText(MainActivity.this, "对不起,未找到结果", 1).show();return;}//定义公交线路图的描述类MKPoiInfo mkPoiInfo = null;int totalPoiNum = result.getNumPois();//获得本地检索的公交线路图的总站数for(int i = 0;i<totalPoiNum;i++){mkPoiInfo = result.getPoi(i);//2 公交线路if(mkPoiInfo.ePoiType==2){break;}}mkSearch.busLineSearch("北京", mkPoiInfo.uid);}public void onGetRGCShareUrlResult(String arg0, int arg1) {// TODO Auto-generated method stub}public void onGetSuggestionResult(MKSuggestionResult arg0, int arg1) {// TODO Auto-generated method stub}public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {// TODO Auto-generated method stubif(arg0==null){return;}TransitOverlay transiOverlay = new TransitOverlay(MainActivity.this,mapView);transiOverlay.setData(arg0.getPlan(0));mapView.getOverlays().add(transiOverlay);mapView.invalidate();}public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1) {// TODO Auto-generated method stub }}@Overrideprotected void onDestroy() {super.onDestroy();if (bMapManager != null) {bMapManager.destroy();bMapManager = null;}}@Overrideprotected void onResume() {super.onResume();if (bMapManager != null) {bMapManager.start();}}@Overrideprotected void onPause() {super.onPause();if (bMapManager != null) {bMapManager.stop();}}@Overrideprotected boolean isRouteDisplayed() {return false;}}
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