在 iOS 中的 Xamarin Forms 中创建一个 HttpClient

Question

I have an ASP.Net Core API that is running.

I have a Xamarin Forms solution and in the main project and I have this class:

public class GetSettings
{

    public static async Task<SettingResponse> GetSetting()
    {
        SettingResponse setting = new SettingResponse();

        var url = new Uri(string.Format(GetUrl.GenerateURL("GetSetting"), string.Empty));

        var client = new HttpClient();

        var response = await client.GetAsync(url);

        if (response.IsSuccessStatusCode)
        {
            var result = response.Content.ReadAsStringAsync().Result;

            setting = JsonConvert.DeserializeObject<SettingResponse>(result);
        }
        else
        {
            setting = null;
        }

        return setting;
    }
}

In the Android and iOS project I have this two lines:

SettingResponse setting = new SettingResponse();

setting = await GetSettings.GetSetting();

In the Android project there is no problem and it works fine, but in the iOS project when getting to new HttpClient(); nothing happens and app does nothing.

Answer 1

Check if you have the NSAllowsArbitraryLoads key to YES in NSAppTransportSecurity dictionary in your info.plist file.

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>