android百度地图之公交线路详情搜索

本篇文章可以实现百度公交线路搜索，可以选择多条线路，具体实现代码如下：

一、公交线路详情检索

获取公交线路的详情主要分来两步，1.获取公交线路的Uid，2.通过Uid获取公交线路详情。

1.获取公交线路的Uid：

/*
     * 获得公交线路图的Uid，并且根据系Uid发起公交线路详情的检索
     *
     * @see
     * com.baidu.mapapi.MKSearchListener#onGetPoiResult(com.baidu.mapapi
     * .MKPoiResult, int, int)
     */
    @Override
    public void onGetPoiResult(MKPoiResult arg0, int arg1, int arg2) {
      // TODO Auto-generated method stub
      if (arg0 == null || arg2 != 0) {
        Toast.makeText(MainActivity.this, "未找到结果", 1);
        return;
      }
      // 定义一个公交线路描述类
      MKPoiInfo mkPoiInfo = null;
      // 获得本次就爱你所的公交线路的总站点
      int totalPoiNum = arg0.getNumPois();
      for (int i = 0; i < totalPoiNum; i++) {
        mkPoiInfo = arg0.getPoi(i);
        if (mkPoiInfo.ePoiType == 2) {
          break;
        }
      }
      mkSearch.busLineSearch("开封", mkPoiInfo.uid);
    }

2.获取公交线路详情：

/*
     * 得到公交线路图的详情
     *
     * @see
     * com.baidu.mapapi.MKSearchListener#onGetBusDetailResult(com.baidu.
     * mapapi.MKBusLineResult, int)
     */
    @Override
    public void onGetBusDetailResult(MKBusLineResult arg0, int arg1) {
      // TODO Auto-generated method stub
      if (arg0 == null || arg1 != 0) {
        Toast.makeText(MainActivity.this, "未找到结果", 1);
        return;
      }
      RouteOverlay routeOverlay = new RouteOverlay(MainActivity.this,
          mapView);
      routeOverlay.setData(arg0.getBusRoute());// 获得公交线路

      mapView.getOverlays().clear();// 清楚公交站点的标识
      mapView.getOverlays().add(routeOverlay);
      mapView.invalidate();
      // 采用动画形式描述公交站点
      mapView.getController().animateTo(arg0.getBusRoute().getStart());
    }

查询时，只需提供城市名和线路

mkSearch.poiSearchInCity("开封", "3");

完整代码：

package com.arlen.android.baidumap08;

import android.os.Bundle;
import android.view.Menu;
import android.widget.Toast;

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;

public class MainActivity extends MapActivity {

  private BMapManager bMapManager;
  private MapView mapView;
  private String key = "43D220AAB0DEC976D2EABC83CFC9EEE52BCCCA7A";
  private MKSearch mkSearch;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    bMapManager = new BMapManager(MainActivity.this);
    bMapManager.init(key, new MKGeneralListener() {

      @Override
      public void onGetPermissionState(int arg0) {
        // TODO Auto-generated method stub

      }

      @Override
      public void onGetNetworkState(int arg0) {
        // TODO Auto-generated method stub

      }
    });
    initMapActivity(bMapManager);
    mapView = (MapView) findViewById(R.id.bmapView);
    mkSearch = new MKSearch();
    mkSearch.init(bMapManager, new MySearchListener());

    mkSearch.poiSearchInCity("开封", "3");
  }

  private class MySearchListener implements MKSearchListener {

    @Override
    public void onGetAddrResult(MKAddrInfo arg0, int arg1) {
      // TODO Auto-generated method stub

    }

    /*
     * 得到公交线路图的详情
     *
     * @see
     * com.baidu.mapapi.MKSearchListener#onGetBusDetailResult(com.baidu.
     * mapapi.MKBusLineResult, int)
     */
    @Override
    public void onGetBusDetailResult(MKBusLineResult arg0, int arg1) {
      // TODO Auto-generated method stub
      if (arg0 == null || arg1 != 0) {
        Toast.makeText(MainActivity.this, "未找到结果", 1);
        return;
      }
      RouteOverlay routeOverlay = new RouteOverlay(MainActivity.this,
          mapView);
      routeOverlay.setData(arg0.getBusRoute());// 获得公交线路

      mapView.getOverlays().clear();// 清楚公交站点的标识
      mapView.getOverlays().add(routeOverlay);
      mapView.invalidate();
      // 采用动画形式描述公交站点
      mapView.getController().animateTo(arg0.getBusRoute().getStart());
    }

    @Override
    public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1) {
      // TODO Auto-generated method stub

    }

    @Override
    public void onGetPoiDetailSearchResult(int arg0, int arg1) {
      // TODO Auto-generated method stub

    }

    /*
     * 获得公交线路图的Uid，并且根据系Uid发起公交线路详情的检索
     *
     * @see
     * com.baidu.mapapi.MKSearchListener#onGetPoiResult(com.baidu.mapapi
     * .MKPoiResult, int, int)
     */
    @Override
    public void onGetPoiResult(MKPoiResult arg0, int arg1, int arg2) {
      // TODO Auto-generated method stub
      if (arg0 == null || arg2 != 0) {
        Toast.makeText(MainActivity.this, "未找到结果", 1);
        return;
      }
      // 定义一个公交线路描述类
      MKPoiInfo mkPoiInfo = null;
      // 获得本次就爱你所的公交线路的总站点
      int totalPoiNum = arg0.getNumPois();
      for (int i = 0; i < totalPoiNum; i++) {
        mkPoiInfo = arg0.getPoi(i);
        if (mkPoiInfo.ePoiType == 2) {
          break;
        }
      }
      mkSearch.busLineSearch("开封", mkPoiInfo.uid);
    }

    @Override
    public void onGetRGCShareUrlResult(String arg0, int arg1) {
      // TODO Auto-generated method stub

    }

    @Override
    public void onGetSuggestionResult(MKSuggestionResult arg0, int arg1) {
      // TODO Auto-generated method stub

    }

    @Override
    public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {
      // TODO Auto-generated method stub

    }

    @Override
    public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1) {
      // TODO Auto-generated method stub

    }
  }

  @Override
  protected void onDestroy() {
    // TODO Auto-generated method stub
    super.onDestroy();
    if (bMapManager != null) {
      bMapManager.destroy();
      bMapManager = null;
    }
  }

  @Override
  protected void onResume() {
    // TODO Auto-generated method stub
    super.onResume();
    if (bMapManager != null) {
      bMapManager.start();
    }
  }

  @Override
  protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
    if (bMapManager != null) {
      bMapManager.stop();
    }
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  protected boolean isRouteDisplayed() {
    // TODO Auto-generated method stub
    return false;
  }

}

二、多条线路显示

在同一个地图上显示多条导航线路，也只需要分两步完成，

1.定义起始点个终点

start = new MKPlanNode();
    start.pt = new GeoPoint((int) (39.915 * 1E6), (int) (116.404 * 1E6));
    end = new MKPlanNode();
    end.pt = new GeoPoint(40057031, 116307852);

    mkSearch.transitSearch("北京", start, end);

2.将所有的线路详情循环显示在地图上

@Override
    public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {
      // TODO Auto-generated method stub
      if (arg0 == null) {
        return;
      }
      int planNum = arg0.getNumPlan();// 获取所有的驾车路线
      for (int i = 0; i < planNum; i++) {
        TransitOverlay overlay = new TransitOverlay(MainActivity.this,
            mapView);
        overlay.setData(arg0.getPlan(i));
        mapView.getOverlays().add(overlay);
      }
      mapView.invalidate();
      mapView.getController().animateTo(arg0.getStart().pt);
    }

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