百度地图之搜索公交路线
百度SDK提供了查询公交路线的功能，并且可以浏览路线要经过的每一个站，百度Demo代码如下：
Activity:
package com.home;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.baidu.mapapi.map.MKMapTouchListener;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.PopupClickListener;
import com.baidu.mapapi.map.PopupOverlay;
import com.baidu.mapapi.map.RouteOverlay;
import com.baidu.mapapi.search.MKAddrInfo;
import com.baidu.mapapi.search.MKBusLineResult;
import com.baidu.mapapi.search.MKDrivingRouteResult;
import com.baidu.mapapi.search.MKPoiInfo;
import com.baidu.mapapi.search.MKPoiResult;
import com.baidu.mapapi.search.MKRoute;
import com.baidu.mapapi.search.MKSearch;
import com.baidu.mapapi.search.MKSearchListener;
import com.baidu.mapapi.search.MKShareUrlResult;
import com.baidu.mapapi.search.MKSuggestionResult;
import com.baidu.mapapi.search.MKTransitRouteResult;
import com.baidu.mapapi.search.MKWalkingRouteResult;
import com.baidu.platform.comapi.basestruct.GeoPoint;
/**
* 此demo用来展示如何进行公交线路详情检索，并使用RouteOverlay在地图上绘制 同时展示如何浏览路线节点并弹出泡泡
*
*/
public class BusLineSearchActivity extends Activity {
// UI相关
Button mBtnSearch = null;
Button mBtnNextLine = null;
// 浏览路线节点相关
Button mBtnPre = null;// 上一个节点
Button mBtnNext = null;// 下一个节点
int nodeIndex = -2;// 节点索引,供浏览节点时使用
MKRoute route = null;// 保存驾车/步行路线数据的变量，供浏览节点时使用
private PopupOverlay pop = null;// 弹出泡泡图层，浏览节点时使用
private TextView popupText = null;// 泡泡view
private View viewCache = null;
private List<String> busLineIDList = null;
int busLineIndex = 0;
// 地图相关，使用继承MapView的MyBusLineMapView目的是重写touch事件实现泡泡处理
// 如果不处理touch事件，则无需继承，直接使用MapView即可
MapView mMapView = null; // 地图View
// 搜索相关
MKSearch mSearch = null; // 搜索模块，也可去掉地图模块独立使用
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
DemoApplication app = (DemoApplication) this.getApplication();
setContentView(R.layout.activity_buslinesearch);
CharSequence titleLable = "公交线路查询功能";
setTitle(titleLable);
// 地图初始化
mMapView = (MapView) findViewById(R.id.bmapView);
mMapView.getController().enableClick(true);
mMapView.getController().setZoom(12);
busLineIDList = new ArrayList<String>();
// 创建 弹出泡泡图层
createPaopao();
// 地图点击事件处理
mMapView.regMapTouchListner(new MKMapTouchListener() {
@Override
public void onMapClick(GeoPoint point) {
// 在此处理地图点击事件
// 消隐pop
if (pop != null) {
pop.hidePop();
}
}
@Override
public void onMapDoubleClick(GeoPoint point) {
}
@Override
public void onMapLongClick(GeoPoint point) {
}
});
// 初始化搜索模块，注册事件监听
mSearch = new MKSearch();
mSearch.init(app.mBMapManager, new MKSearchListener() {
@Override
public void onGetPoiDetailSearchResult(int type, int error) {
}
public void onGetPoiResult(MKPoiResult res, int type, int error) {
// 错误号可参考MKEvent中的定义
if (error != 0 || res == null) {
Toast.makeText(BusLineSearchActivity.this, "抱歉，未找到结果",
Toast.LENGTH_SHORT).show();
return;
}
// 找到公交路线poi node
MKPoiInfo curPoi = null;
int totalPoiNum = res.getCurrentNumPois();
// 遍历所有poi，找到类型为公交线路的poi
busLineIDList.clear();
for (int idx = 0; idx < totalPoiNum; idx++) {
if (2 == res.getPoi(idx).ePoiType) {
// poi类型，0：普通点，1：公交站，2：公交线路，3：地铁站，4：地铁线路
curPoi = res.getPoi(idx);
// 使用poi的uid发起公交详情检索
busLineIDList.add(curPoi.uid);
System.out.println(curPoi.uid);
}
}
SearchNextBusline();
// 没有找到公交信息
if (curPoi == null) {
Toast.makeText(BusLineSearchActivity.this, "抱歉，未找到结果",
Toast.LENGTH_LONG).show();
return;
}
route = null;
}
public void onGetDrivingRouteResult(MKDrivingRouteResult res,
int error) {
}
public void onGetTransitRouteResult(MKTransitRouteResult res,
int error) {
}
public void onGetWalkingRouteResult(MKWalkingRouteResult res,
int error) {
}
public void onGetAddrResult(MKAddrInfo res, int error) {
}
/**
* 获取公交路线结果，展示公交线路
*/
public void onGetBusDetailResult(MKBusLineResult result, int iError) {
if (iError != 0 || result == null) {
Toast.makeText(BusLineSearchActivity.this, "抱歉，未找到结果",
Toast.LENGTH_LONG).show();
return;
}
RouteOverlay routeOverlay = new RouteOverlay(
BusLineSearchActivity.this, mMapView);
// 此处仅展示一个方案作为示例
routeOverlay.setData(result.getBusRoute());
// 清除其他图层
mMapView.getOverlays().clear();
// 添加路线图层
mMapView.getOverlays().add(routeOverlay);
// 刷新地图使生效
mMapView.refresh();
// 移动地图到起点
mMapView.getController().animateTo(
result.getBusRoute().getStart());
// 将路线数据保存给全局变量
route = result.getBusRoute();
// 重置路线节点索引，节点浏览时使用
nodeIndex = -1;
mBtnPre.setVisibility(View.VISIBLE);
mBtnNext.setVisibility(View.VISIBLE);
Toast.makeText(BusLineSearchActivity.this, result.getBusName(),
Toast.LENGTH_SHORT).show();
}
@Override
public void onGetSuggestionResult(MKSuggestionResult res, int arg1) {
}
@Override
public void onGetShareUrlResult(MKShareUrlResult result, int type,
int error) {
}
});
// 设定搜索按钮的响应
mBtnSearch = (Button) findViewById(R.id.search);
mBtnNextLine = (Button) findViewById(R.id.nextline);
mBtnPre = (Button) findViewById(R.id.pre);
mBtnNext = (Button) findViewById(R.id.next);
mBtnPre.setVisibility(View.INVISIBLE);
mBtnNext.setVisibility(View.INVISIBLE);
OnClickListener clickListener = new OnClickListener() {
public void onClick(View v) {
// 发起搜索
SearchButtonProcess(v);
}
};
OnClickListener nextLineClickListener = new OnClickListener() {
public void onClick(View v) {
// 搜索下一条公交线
SearchNextBusline();
}
};
OnClickListener nodeClickListener = new OnClickListener() {
public void onClick(View v) {
// 浏览路线节点
nodeClick(v);
}
};
mBtnSearch.setOnClickListener(clickListener);
mBtnNextLine.setOnClickListener(nextLineClickListener);
mBtnPre.setOnClickListener(nodeClickListener);
mBtnNext.setOnClickListener(nodeClickListener);
}
/**
* 发起检索
*
* @param v
*/
void SearchButtonProcess(View v) {
busLineIDList.clear();
busLineIndex = 0;
mBtnPre.setVisibility(View.INVISIBLE);
mBtnNext.setVisibility(View.INVISIBLE);
if (mBtnSearch.equals(v)) {
EditText editCity = (EditText) findViewById(R.id.city);
EditText editSearchKey = (EditText) findViewById(R.id.searchkey);
// 发起poi检索，从得到所有poi中找到公交线路类型的poi，再使用该poi的id进行公交详情搜索
mSearch.poiSearchInCity(editCity.getText().toString(),
editSearchKey.getText().toString());
}
}
void SearchNextBusline() {
if (busLineIndex >= busLineIDList.size()) {
busLineIndex = 0;
}
if (busLineIndex >= 0 && busLineIndex < busLineIDList.size()
&& busLineIDList.size() > 0) {
mSearch.busLineSearch(((EditText) findViewById(R.id.city))
.getText().toString(), busLineIDList.get(busLineIndex));
busLineIndex++;
}
}
/**
* 创建弹出泡泡图层
*/
public void createPaopao() {
viewCache = getLayoutInflater()
.inflate(R.layout.custom_text_view, null);
popupText = (TextView) viewCache.findViewById(R.id.textcache);
// 泡泡点击响应回调
PopupClickListener popListener = new PopupClickListener() {
@Override
public void onClickedPopup(int index) {
Log.v("click", "clickapoapo");
}
};
pop = new PopupOverlay(mMapView, popListener);
}
/**
* 节点浏览示例
*
* @param v
*/
public void nodeClick(View v) {
if (nodeIndex < -1 || route == null || nodeIndex >= route.getNumSteps())
return;
viewCache = getLayoutInflater()
.inflate(R.layout.custom_text_view, null);
popupText = (TextView) viewCache.findViewById(R.id.textcache);
// 上一个节点
if (mBtnPre.equals(v) && nodeIndex > 0) {
// 索引减
nodeIndex--;
// 移动到指定索引的坐标
mMapView.getController().animateTo(
route.getStep(nodeIndex).getPoint());
// 弹出泡泡
popupText.setText(route.getStep(nodeIndex).getContent());
popupText.setBackgroundResource(R.drawable.popup);
pop.showPopup(BMapUtil.getBitmapFromView(popupText),
route.getStep(nodeIndex).getPoint(), 5);
}
// 下一个节点
if (mBtnNext.equals(v) && nodeIndex < (route.getNumSteps() - 1)) {
// 索引加
nodeIndex++;
// 移动到指定索引的坐标
mMapView.getController().animateTo(
route.getStep(nodeIndex).getPoint());
// 弹出泡泡
popupText.setText(route.getStep(nodeIndex).getContent());
popupText.setBackgroundDrawable(getResources().getDrawable(
R.drawable.popup));
pop.showPopup(BMapUtil.getBitmapFromView(popupText),
route.getStep(nodeIndex).getPoint(), 5);
}
}
@Override
protected void onPause() {
mMapView.onPause();
super.onPause();
}
@Override
protected void onResume() {
mMapView.onResume();
super.onResume();
}
@Override
protected void onDestroy() {
mMapView.destroy();
super.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mMapView.onSaveInstanceState(outState);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
mMapView.onRestoreInstanceState(savedInstanceState);
}
}
布局XML：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="在" />
<EditText
android:id="@+id/city"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="北京" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="市内找" />
<EditText
android:id="@+id/searchkey"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="717" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="公交车" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="@+id/search"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:layout_weight="1"
android:background="@drawable/button_style"
android:text="开始" />
<Button
android:id="@+id/nextline"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:layout_weight="1"
android:background="@drawable/button_style"
android:text="下一条" />
</LinearLayout>
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<com.baidu.mapapi.map.MapView
android:id="@+id/bmapView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignWithParentIfMissing="false"
android:layout_centerHorizontal="true"
android:layout_centerVertical="false"
android:layout_marginBottom="10dip" >
<Button
android:id="@+id/pre"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:layout_weight="1.0"
android:background="@drawable/pre_" />
<Button
android:id="@+id/next"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:layout_weight="1.0"
android:background="@drawable/next_" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
配置文件和Application类同上文
附上图片效果：