3、添加PoiOverlay.cs文件
在SrcOverlayUtil文件夹下添加该文件。
using Android.OS;
using Android.Widget;
using Com.Baidu.Mapapi;
using Com.Baidu.Mapapi.Map;
using Com.Baidu.Mapapi.Search.Poi;
using System.Collections.Generic;
namespace BdMapV371Demos.SrcOverlayUtil
{
/// <summary>
/// 显示一条公交详情结果的Overlay，继承自该类的子类可显示其他类型的Overlay
/// </summary>
public class PoiOverlay : OverlayManager
{
private static readonly int MaxPoiSize = 10;
private PoiResult mPoiResult = null;
public PoiOverlay(BaiduMap baiduMap) : base(baiduMap)
{
}
/// <summary>
/// 设置POI数据
/// </summary>
/// <param name="poiResult">POI结果数据</param>
public void SetData(PoiResult poiResult)
{
this.mPoiResult = poiResult;
}
public override List<OverlayOptions> GetOverlayOptions()
{
if (mPoiResult == null || mPoiResult.AllPoi == null)
{
return null;
}
List<OverlayOptions> markerList = new List<OverlayOptions>();
int markerSize = 0;
for (int i = 0; i < mPoiResult.AllPoi.Count && markerSize < MaxPoiSize; i++)
{
if (mPoiResult.AllPoi[i].Location == null)
{
continue;
}
markerSize++;
Bundle bundle = new Bundle();
bundle.PutInt("index", i);
markerList.Add(new MarkerOptions()
.InvokeIcon(BitmapDescriptorFactory.FromAssetWithDpi("Icon_mark"
+ markerSize + ".png")).InvokeExtraInfo(bundle)
.InvokePosition(mPoiResult.AllPoi[i].Location));
}
return markerList;
}
/// <summary>
/// 获取该 PoiOverlay 的 poi数据
/// </summary>
public PoiResult GetPoiResult()
{
return mPoiResult;
}
/// <summary>
/// 重写此方法可改变默认点击行为
/// </summary>
/// <param name="i">被点击的poi在PoiResult.AllPoi中的索引</param>
/// <returns></returns>
public virtual bool OnPoiClick(int i)
{
if (mPoiResult.AllPoi != null && mPoiResult.AllPoi[i] != null)
{
Toast.MakeText(BMapManager.Context,
mPoiResult.AllPoi[i].Name, ToastLength.Long).Show();
}
return false;
}
public override bool OnMarkerClick(Marker marker)
{
if (!mOverlayList.Contains(marker))
{
return false;
}
if (marker.ExtraInfo != null)
{
return OnPoiClick(marker.ExtraInfo.GetInt("index"));
}
return false;
}
public override bool OnPolylineClick(Polyline polyline)
{
return false;
}
}
}
4、添加Demo12PoiSearch.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：
