分类：C#、Android、VS2015、百度地图应用； 创建日期：2016-02-04
一、简介线路规划支持以下功能：
公交信息查询：可对公交详细信息进行查询；公交换乘查询：根据起、终点，查询策略，进行线路规划方案；驾车线路规划：提供不同策略，规划驾车路线；（支持设置途经点）步行路径检索：支持步行路径的规划。其中驾车线路规划自v3.4.0版本起支持多线路检索结果的能力。
二、运行截图简介：介绍公交、驾车和步行三种线路规划方法和自设路线方法。
详述：
（1）驾车查询新增路径点查询功能，具体使用方法详见开发者指南路径规划部分，只需重载接口；
（2）自设路线功能演示开发者如何自己设定一条路线，包括如何设定起点、终点、途径站点和路段；
（3）自设路线功能同时也介绍如何在两个Activity之间切换的时候管理Mapview的生命周期；
（4）可自定义路线的起终点图标；
本示例运行截图如下：
[flash=500,400]http://s1.knowsky.com/20160211/varouulddlc54.png[/flash]
三、设计步骤1、添加自定义类【代码太多，就不再粘贴在这里了】
本示例用到的文件很多，主要涉及的是自定义覆盖物的相关类，这些文件都在SrcOverlayUtil文件夹下，除了上一节列出的OverlayManager.cs文件和PoiOverlay.cs外，还包括下面的文件。
（1）BikingRouteOverlay.cs文件
用于显示骑行路线的Overlay，自3.4.0版本起可实例化多个添加在地图中显示。
（2）BusLineOverlay.cs文件
用于显示一条公交详情结果的Overlay。
（3）DrivingRouteOverlay.cs文件
用于显示一条驾车路线的overlay，自3.4.0版本起可实例化多个添加在地图中显示，当数据中包含路况数据时，则默认使用路况纹理分段绘制。
（4）TransitRouteOverlay.cs文件
用于显示换乘路线的Overlay，自3.4.0版本起可实例化多个添加在地图中显示。
（5）WalkingRouteOverlay.cs文件
用于显示步行路线的overlay，自3.4.0版本起可实例化多个添加在地图中显示。
2、添加demo13_routeplan.xml文件
在layout文件夹下添加该文件，然后将代码改为下面的内容：
<?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical"><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextViewandroid:id="@+id/textView1"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="起点："/><EditTextandroid:id="@+id/start"android:layout_width="fill_parent"android:layout_height="wrap_content"android:ems="10"android:text="龙泽"><requestFocus/></EditText></LinearLayout><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="wrap_content"android:orientation="horizontal"><TextViewandroid:id="@+id/textView2"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="终点："/><EditTextandroid:id="@+id/end"android:layout_width="fill_parent"android:layout_height="wrap_content"android:ems="10"android:text="西单"><requestFocus/></EditText></LinearLayout><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="wrap_content"android:layout_marginBottom="5dip"android:layout_marginTop="5dip"android:orientation="horizontal"><Buttonandroid:id="@+id/drive"android:layout_width="fill_parent"android:layout_height="fill_parent"android:layout_marginLeft="2dip"android:layout_marginRight="2dip"android:layout_weight="1.0"android:background="@drawable/button_style"android:text="驾车搜索"/><Buttonandroid:id="@+id/transit"android:layout_width="fill_parent"android:layout_height="fill_parent"android:layout_marginLeft="2dip"android:layout_marginRight="2dip"android:layout_weight="1.0"android:background="@drawable/button_style"android:text="公交搜索"/><Buttonandroid:id="@+id/walk"android:layout_width="fill_parent"android:layout_height="fill_parent"android:layout_marginLeft="2dip"android:layout_marginRight="2dip"android:layout_weight="1.0"android:background="@drawable/button_style"android:text="步行搜索"/><Buttonandroid:id="@+id/bike"android:layout_width="fill_parent"android:layout_height="fill_parent"android:layout_marginLeft="2dip"android:layout_marginRight="2dip"android:layout_weight="1.0"android:background="@drawable/button_style"android:text="骑行搜索"/></LinearLayout><RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"><com.baidu.mapapi.map.TextureMapViewandroid:id="@+id/map"android:layout_width="fill_parent"android:layout_height="fill_parent"android:clickable="true"/><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentRight="true"android:layout_alignParentTop="true"android:layout_alignWithParentIfMissing="false"android:layout_marginRight="10dp"android:layout_marginTop="10dip"android:orientation="vertical"><Buttonandroid:id="@+id/customicon"android:layout_width="fill_parent"android:layout_height="fill_parent"android:layout_marginTop="10dip"android:layout_weight="1.0"android:background="@drawable/button_style"android:text="自定义起终点图标"/></LinearLayout><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"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"><Buttonandroid:id="@+id/PRe"android:layout_width="fill_parent"android:layout_height="fill_parent"android:layout_marginLeft="2dip"android:layout_marginRight="2dip"android:layout_weight="1.0"android:background="@drawable/pre_"/><Buttonandroid:id="@+id/next"android:layout_width="fill_parent"android:layout_height="fill_parent"android:layout_marginLeft="2dip"android:layout_marginRight="2dip"android:layout_weight="1.0"android:background="@drawable/next_"/></LinearLayout></RelativeLayout></LinearLayout>
3、添加Demo13RoutePlan.cs文件
在SrcSdkDemos文件夹下添加该文件，然后将代码改为下面的内容：
usingAndroid.App;usingAndroid.Content.PM;usingAndroid.OS;usingAndroid.Views;usingAndroid.Widget;usingCom.Baidu.Mapapi.Map;usingCom.Baidu.Mapapi.Model;usingCom.Baidu.Mapapi.Search.Core;usingCom.Baidu.Mapapi.Search.Route;usingBdMapV371Demos.SrcOverlayUtil;namespaceBdMapV371Demos.SrcSdkDemos
{///<summary>///此demo用来展示如何进行驾车、步行、公交路线搜索并在地图使用RouteOverlay、TransitOverlay绘制，///同时展示如何进行节点浏览并弹出泡泡。///</summary>[Activity(Label ="@string/demo_name_route",
ConfigurationChanges= ConfigChanges.Orientation |ConfigChanges.KeyboardHidden,
ScreenOrientation=ScreenOrientation.Sensor)]publicclassDemo13RoutePlan : Activity
{//浏览路线节点相关Button btnPre =null;//上一个节点Button btnNext =null;//下一个节点intnodeIndex = -2;//节点索引,供浏览节点时使用RouteLine route =null;
OverlayManager routeOverlay=null;booluseDefaultIcon =false;privateTextView popupText =null;//泡泡view//地图相关，使用MyRouteMapView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TextureMapView即可。TextureMapView mMapView =null;//地图ViewBaiduMap mBaidumap =null;//搜索相关RoutePlanSearch mSearch =null;//搜索模块，也可去掉地图模块独立使用protectedoverridevoidOnCreate(Bundle savedInstanceState)
{base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.demo13_routeplan);//初始化地图mMapView = FindViewById<TextureMapView>(Resource.Id.map);
mBaidumap=mMapView.Map;
btnPre= FindViewById<Button>(Resource.Id.pre);
btnNext= FindViewById<Button>(Resource.Id.next);
btnPre.Visibility=ViewStates.Invisible;
btnNext.Visibility=ViewStates.Invisible;//处理地图点击事件mBaidumap.MapClick += (s, e) =>{//LatLng point = e.P0;//Toast.MakeText(this, point.ToString(), ToastLength.Long).Show();mBaidumap.HideInfoWindow();
};//--begin--初始化搜索模块，注册处理事件mSearch =RoutePlanSearch.NewInstance();//处理驾车搜索结果mSearch.GetDrivingRouteResult += (s, e) =>{varresult =e.P0;if(result ==null|| result.Error !=SearchResult.ERRORNO.NoError)
{
Toast.MakeText(this,"抱歉，未找到结果", ToastLength.Short).Show();
}if(result.Error ==SearchResult.ERRORNO.AmbiguousRoureAddr)
{//起终点或途经点地址有岐义，通过result.SuggestAddrInfo属性获取建议查询信息//......return;
}if(result.Error ==SearchResult.ERRORNO.NoError)
{
nodeIndex= -1;
btnPre.Visibility=ViewStates.Visible;
btnNext.Visibility=ViewStates.Visible;
route= result.RouteLines[0];
DrivingRouteOverlay overlay=newMyDrivingRouteOverlay(this, mBaidumap);
routeOverlay=overlay;
mBaidumap.MarkerClick+= (sender, args) =>{//......};
overlay.SetData(result.RouteLines[0]);
overlay.AddToMap();
overlay.ZoomToSpan();
}
};//处理公交搜索结果mSearch.GetTransitRouteResult += (s,e) =>{varresult =e.P0;if(result ==null|| result.Error !=SearchResult.ERRORNO.NoError)
{
Toast.MakeText(this,"抱歉，未找到结果", ToastLength.Short).Show();
}if(result.Error ==SearchResult.ERRORNO.AmbiguousRoureAddr)
{//起终点或途经点地址有岐义，通过以下接口获取建议查询信息//result.getSuggestAddrInfo()return;
}if(result.Error ==SearchResult.ERRORNO.NoError)
{
nodeIndex= -1;
btnPre.Visibility=ViewStates.Visible;
btnNext.Visibility=ViewStates.Visible;
route= result.RouteLines[0];
TransitRouteOverlay overlay=newMyTransitRouteOverlay(this, mBaidumap);
mBaidumap.MarkerClick+= (sender, args) =>{//......};
routeOverlay=overlay;
overlay.SetData(result.RouteLines[0]);
overlay.AddToMap();
overlay.ZoomToSpan();
}
};//处理步行搜索结果mSearch.GetWalkingRouteResult += (s, e) =>{varresult =e.P0;if(result ==null|| result.Error !=SearchResult.ERRORNO.NoError)
{
Toast.MakeText(this,"抱歉，未找到结果", ToastLength.Short).Show();
}if(result.Error ==SearchResult.ERRORNO.AmbiguousRoureAddr)
{//起终点或途经点地址有岐义，通过以下接口获取建议查询信息//result.getSuggestAddrInfo()return;
}if(result.Error ==SearchResult.ERRORNO.NoError)
{
nodeIndex= -1;
btnPre.Visibility=ViewStates.Visible;
btnNext.Visibility=ViewStates.Visible;
route= result.RouteLines[0];
WalkingRouteOverlay overlay=newMyWalkingRouteOverlay(this, mBaidumap);
mBaidumap.MarkerClick+= (sender, args) =>{//......};
routeOverlay=overlay;
overlay.SetData(result.RouteLines[0]);
overlay.AddToMap();
overlay.ZoomToSpan();
}
};//处理骑行搜索结果mSearch.GetBikingRouteResult += (s, e) =>{varresult =e.P0;if(result ==null|| result.Error !=SearchResult.ERRORNO.NoError)
{
Toast.MakeText(this,"抱歉，未找到结果", ToastLength.Short).Show();
}if(result.Error ==SearchResult.ERRORNO.AmbiguousRoureAddr)
{//如果起终点或途经点地址有岐义，可通过result.SuggestAddrInfo属性获取建议查询信息//......return;
}if(result.Error ==SearchResult.ERRORNO.NoError)
{
nodeIndex= -1;
btnPre.Visibility=ViewStates.Visible;
btnNext.Visibility=ViewStates.Visible;
route= result.RouteLines[0];
BikingRouteOverlay overlay=newMyBikingRouteOverlay(this, mBaidumap);
routeOverlay=overlay;
mBaidumap.MarkerClick+= (sender, args) =>{//......};
overlay.SetData(result.RouteLines[0]);
overlay.AddToMap();
overlay.ZoomToSpan();
}
};//--end--初始化搜索模块，注册监听事件//处理【驾车搜素】按钮点击事件varbtnDrive = FindViewById<Button>(Resource.Id.drive);
btnDrive.Click+=delegate{
SearchButtonProcess(Resource.Id.drive);
};//处理【公交搜素】按钮点击事件varbtnTransit = FindViewById<Button>(Resource.Id.transit);
btnTransit.Click+=delegate{
SearchButtonProcess(Resource.Id.transit);
};//处理【步行搜素】按钮点击事件varbtnWalk = FindViewById<Button>(Resource.Id.walk);
btnWalk.Click+=delegate{
SearchButtonProcess(Resource.Id.walk);
};//处理【骑行搜素】按钮点击事件varbtnBike = FindViewById<Button>(Resource.Id.bike);
btnBike.Click+=delegate{
SearchButtonProcess(Resource.Id.bike);
};//处理【自定义起终点图标】按钮点击事件varbtnCustomicon = FindViewById<Button>(Resource.Id.customicon);
btnCustomicon.Click+=delegate{//切换路线图标，刷新地图使其生效。注意：起终点图标使用中心对齐。if(routeOverlay ==null)return;if(useDefaultIcon)
{
btnCustomicon.Text="自定义起终点图标";
Toast.MakeText(this,"将使用系统起终点图标", ToastLength.Short).Show();
}else{
btnCustomicon.Text="系统起终点图标";
Toast.MakeText(this,"将使用自定义起终点图标", ToastLength.Short).Show();
}
useDefaultIcon= !useDefaultIcon;
routeOverlay.RemoveFromMap();
routeOverlay.AddToMap();
};//处理节点浏览相关的按钮事件btnPre.Click +=delegate{
NodeClick(Resource.Id.pre);
};
btnNext.Click+=delegate{
NodeClick(Resource.Id.next);
};
}///<summary>///发起路线规划搜索///</summary>///<param name="id">按钮的id</param>publicvoidSearchButtonProcess(intid)
{//重置浏览节点的路线数据route =null;
btnPre.Visibility=ViewStates.Invisible;
btnNext.Visibility=ViewStates.Invisible;
mBaidumap.Clear();//处理搜索按钮响应示例EditText editSt = FindViewById<EditText>(Resource.Id.start);
EditText editEn= FindViewById<EditText>(Resource.Id.end);//设置起终点信息，对于tranist search 来说，城市名无意义PlanNode stNode = PlanNode.WithCityNameAndPlaceName("北京", editSt.Text);
PlanNode enNode= PlanNode.WithCityNameAndPlaceName("北京", editEn.Text);//实际使用中请对起点终点城市进行正确的设定if(id ==Resource.Id.drive)
{
mSearch.DrivingSearch(newDrivingRoutePlanOption()
.From(stNode).To(enNode));
}elseif(id ==Resource.Id.transit)
{
mSearch.TransitSearch(newTransitRoutePlanOption()
.From(stNode).City("北京").To(enNode));
}elseif(id ==Resource.Id.walk)
{
mSearch.WalkingSearch(newWalkingRoutePlanOption()
.From(stNode).To(enNode));
}elseif(id ==Resource.Id.bike)
{
mSearch.BikingSearch(newBikingRoutePlanOption()
.From(stNode).To(enNode));
}
}///<summary>///节点浏览示例///</summary>///<param name="id">按钮的id</param>publicvoidNodeClick(intid)
{if(nodeIndex < -1|| route ==null||route.AllStep==null|| nodeIndex >route.AllStep.Count)
{return;
}//设置节点索引if(id == Resource.Id.next && nodeIndex < route.AllStep.Count -1)
{
nodeIndex++;
}elseif(id == Resource.Id.pre && nodeIndex >1)
{
nodeIndex--;
}if(nodeIndex <0|| nodeIndex >=route.AllStep.Count)
{return;
}//获取节结果信息LatLng nodeLocation =null;stringnodeTitle =null;varstep =route.AllStep[nodeIndex];if(stepisDrivingRouteLine.DrivingStep)
{
nodeLocation=((DrivingRouteLine.DrivingStep)step).Entrance.Location;
nodeTitle=((DrivingRouteLine.DrivingStep)step).Instructions;
}elseif(stepisWalkingRouteLine.WalkingStep)
{
nodeLocation=((WalkingRouteLine.WalkingStep)step).Entrance.Location;
nodeTitle=((WalkingRouteLine.WalkingStep)step).Instructions;
}elseif(stepisTransitRouteLine.TransitStep)
{
nodeLocation=((TransitRouteLine.TransitStep)step).Entrance.Location;
nodeTitle=((TransitRouteLine.TransitStep)step).Instructions;
}if(nodeLocation ==null|| nodeTitle ==null)
{return;
}//移动节点至中心mBaidumap.SetMapStatus(MapStatusUpdateFactory.NewLatLng(nodeLocation));//Show popuppopupText=newTextView(this);
popupText.SetBackgroundResource(Resource.Drawable.popup);
popupText.SetTextColor(Android.Graphics.Color.Black);
popupText.Text=nodeTitle;
mBaidumap.ShowInfoWindow(newInfoWindow(popupText, nodeLocation,0));
}protectedoverridevoidOnRestoreInstanceState(Bundle savedInstanceState)
{base.OnRestoreInstanceState(savedInstanceState);
}//定制RouteOverlyprivateclassMyDrivingRouteOverlay : DrivingRouteOverlay
{
Demo13RoutePlan routePlanDemo;publicMyDrivingRouteOverlay(Demo13RoutePlan routePlanDemo, BaiduMap baiduMap) :base(baiduMap)
{this.routePlanDemo =routePlanDemo;
}publicoverrideBitmapDescriptor GetStartMarker()
{if(routePlanDemo.useDefaultIcon)
{returnBitmapDescriptorFactory.FromResource(Resource.Drawable.icon_st);
}returnnull;
}publicoverrideBitmapDescriptor GetTerminalMarker()
{if(routePlanDemo.useDefaultIcon)
{returnBitmapDescriptorFactory.FromResource(Resource.Drawable.icon_en);
}returnnull;
}
}privateclassMyWalkingRouteOverlay : WalkingRouteOverlay
{
Demo13RoutePlan routePlanDemo;publicMyWalkingRouteOverlay(Demo13RoutePlan routePlanDemo, BaiduMap baiduMap) :base(baiduMap)
{this.routePlanDemo =routePlanDemo;
}publicnewBitmapDescriptor GetStartMarker()
{if(routePlanDemo.useDefaultIcon)
{returnBitmapDescriptorFactory.FromResource(Resource.Drawable.icon_st);
}returnnull;
}publicnewBitmapDescriptor GetTerminalMarker()
{if(routePlanDemo.useDefaultIcon)
{returnBitmapDescriptorFactory.FromResource(Resource.Drawable.icon_en);
}returnnull;
}
}privateclassMyTransitRouteOverlay : TransitRouteOverlay
{
Demo13RoutePlan routePlanDemo;publicMyTransitRouteOverlay(Demo13RoutePlan routePlanDemo, BaiduMap baiduMap) :base(baiduMap)
{this.routePlanDemo =routePlanDemo;
}publicoverrideBitmapDescriptor GetStartMarker()
{if(routePlanDemo.useDefaultIcon)
{returnBitmapDescriptorFactory.FromResource(Resource.Drawable.icon_st);
}returnnull;
}publicoverrideBitmapDescriptor GetTerminalMarker()
{if(routePlanDemo.useDefaultIcon)
{returnBitmapDescriptorFactory.FromResource(Resource.Drawable.icon_en);
}returnnull;
}
}privateclassMyBikingRouteOverlay : BikingRouteOverlay
{
Demo13RoutePlan routePlanDemo;publicMyBikingRouteOverlay(Demo13RoutePlan routePlanDemo, BaiduMap baiduMap) :base(baiduMap)
{this.routePlanDemo =routePlanDemo;
}publicnewBitmapDescriptor GetStartMarker()
{if(routePlanDemo.useDefaultIcon)
{returnBitmapDescriptorFactory.FromResource(Resource.Drawable.icon_st);
}returnnull;
}publicnewBitmapDescriptor GetTerminalMarker()
{if(routePlanDemo.useDefaultIcon)
{returnBitmapDescriptorFactory.FromResource(Resource.Drawable.icon_en);
}returnnull;
}
}protectedoverridevoidOnPause()
{
mMapView.OnPause();base.OnPause();
}protectedoverridevoidOnResume()
{
mMapView.OnResume();base.OnResume();
}protectedoverridevoidOnDestroy()
{
mSearch.Destroy();
mMapView.OnDestroy();base.OnDestroy();
}
}
}
4、修改MainActivity.cs
在MainActivity.cs文件的demos字段定义中，去掉【示例13】下面的注释。
运行观察结果。