public bool ReadPOIPage(string keyword, int pageSize, List <POI> list, int pageNum = 0)
{
var url = string.Format(_apiGetPOI, keyword, LeftBottom.Lat, LeftBottom.Lng, RightTop.Lat, RightTop.Lng, AKProvider.Peek(), pageSize, pageNum);
string content = null;
WebClient wc = new WebClient();
var stream = wc.OpenRead(url);
if (stream != null)
{
StreamReader sr = new StreamReader(stream);
content = sr.ReadToEnd();
sr.Close();
stream.Close();
}
wc.Dispose();
if (!string.IsNullOrEmpty(content))
{
JsonContent = content;
JavaScriptSerializer jss = new JavaScriptSerializer();
jss.MaxJsonLength = Int32.MaxValue;
var poi = jss.Deserialize <BaiduMapJSON>(content);
if (poi.Status == 0)
{
if (poi.Results.Count > 0)
{
list.AddRange(poi.Results);
if (pageSize * ++pageNum < poi.Total)
{
return(true);
}
else
{
return(false);
}
}
}
else
{
//AK失效
AKProvider.Pop(AKProvider.Peek());
ReadPOIPage(keyword, pageSize, list, pageNum);
return(ReadPOIPage(keyword, pageSize, list, pageNum));
}
}
return(false);
}
public bool VerifyCity()
{
var url = string.Format(_apiGetLocationCity, AKProvider.Peek(), Center.Lat, Center.Lng);
string content = null;
WebClient wc = new WebClient();
var stream = wc.OpenRead(url);
if (stream != null)
{
StreamReader sr = new StreamReader(stream);
content = sr.ReadToEnd();
sr.Close();
stream.Close();
}
if (!string.IsNullOrEmpty(content))
{
JsonContent = content;
JavaScriptSerializer jss = new JavaScriptSerializer();
jss.MaxJsonLength = Int32.MaxValue;
var location = jss.Deserialize <LocationInfoDefinition>(content);
if (location.Status == 0)
{
if (location.Result.AddressComponent.City.Contains(CityName))
{
District = location.Result.AddressComponent.District;
//Debug.WriteLine(url);
InCity = true;
return(true);
}
}
else
{
AKProvider.Pop(AKProvider.Peek());
return(VerifyCity());
}
}
wc.Dispose();
return(false);
}
private Location GetCityCenter()
{
var url = string.Format(_apiFindCityLocation, AKProvider.Peek(), CityName);
string content = null;
WebClient wc = new WebClient();
var stream = wc.OpenRead(url);
if (stream != null)
{
StreamReader sr = new StreamReader(stream);
content = sr.ReadToEnd();
sr.Close();
stream.Close();
}
if (!string.IsNullOrEmpty(content))
{
JsonContent = content;
JavaScriptSerializer jss = new JavaScriptSerializer();
jss.MaxJsonLength = Int32.MaxValue;
var city = jss.Deserialize <CityLocationDefinition>(content);
if (city.Result.Level == "城市")
{
var location = city.Result.Location;
return(location);
}
else
{
throw new ApplicationException("您输入的地名不是城市级别，而是" + city.Result.Level);
}
}
wc.Dispose();
return(null);
}