Xamarin谷歌地图API Json不转换

Question

问题是当我测试这个应用程序的时候

Task.Run(() => this.LoadDataAsync(url)).Wait()；

我得到一个错误Newtonsoft不能反序列化当前的JSON对象。有人能明白为什么吗？

我使用http://json2csharp.com/为JSON创建了类。该应用程序正常工作，并在另一次通话中返回Google上的lat液化天然气。

string url = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=-33.8670522,151.1957362&radius=500&type=restaurant&name=cruise&key=MYAPI IS HERE";
List<GoogleApiResponseJson> googleApiResponseJson = new List<GoogleApiResponseJson> ();

public async Task LoadDataAsync(string uri)
{
    string responseJsonString = null;

    using (var httpClient = new HttpClient())
    {
        try 
        {
            Task<HttpResponseMessage> getResponse = httpClient.GetAsync(uri);
            HttpResponseMessage response = await getResponse;
            responseJsonString = await response.Content.ReadAsStringAsync();
            googleApiResponseJson = JsonConvert.DeserializeObject<List<GoogleApiResponseJson>>(responseJsonString);
        } 
        catch (Exception ex) 
        {
            throw;
        }
    }
}

然后我让这个类保存JSON：

public class GoogleApiResponseJson

{
    public class Location
    {
        public double lat { get; set; }
        public double lng { get; set; }
    }
public class Geometry
{
    public Location location { get; set; }
}

public class OpeningHours
{
    public bool open_now { get; set; }
    public List<object> weekday_text { get; set; }
}

public class Photo
{
    public int height { get; set; }
    public List<string> html_attributions { get; set; }
    public string photo_reference { get; set; }
    public int width { get; set; }
}

public class Result
{
    public Geometry geometry { get; set; }
    public string icon { get; set; }
    public string id { get; set; }
    public string name { get; set; }
    public OpeningHours opening_hours { get; set; }
    public List<Photo> photos { get; set; }
    public string place_id { get; set; }
    public double rating { get; set; }
    public string reference { get; set; }
    public string scope { get; set; }
    public List<string> types { get; set; }
    public string vicinity { get; set; }
}

public class RootObject
{
    public List<object> html_attributions { get; set; }
    public List<Result> results { get; set; }
    public string status { get; set; }
}

}

OnCreate呼叫：

    public async void ApiCallCall ()
    {
        Task.Run(() => this.LoadDataAsync(url)).Wait();         
    }

Answer 1

摆脱包装在所有其他类中的GoogleApiResponseJson类，并反序列化RootObject(而不是列表)，如下所示。

var response = JsonConvert.DeserializeObject<RootObject>(responseJsonString);

RootObject有一个结果列表，这将是您所要寻找的大部分结果。