忽略 Xamarin.Forms (PCL) 中的 SSL 证书错误

有没有办法做类似这里描述的事情：https://stackoverflow.com/a/2675183 https://stackoverflow.com/a/2675183但在 Xamarin.Forms PCL 应用程序中？我正在使用 HttpClient 连接到服务器。

ServicePointManager未在 PCL 中定义，而是在特定于平台的类中定义。

有ServicePointManager同时Xamarin.iOS and Xamarin.Android具有相同的用法。您可以在平台项目的任何类中引用它。However，目前没有这样的课程，似乎没有办法这样做Windows 手机 app.

Example:

// Xamarin.Android

public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsApplicationActivity
{
    protected override void OnCreate(Bundle bundle)
    {
        // You may use ServicePointManager here
        ServicePointManager
            .ServerCertificateValidationCallback +=
            (sender, cert, chain, sslPolicyErrors) => true;

        base.OnCreate(bundle);

        global::Xamarin.Forms.Forms.Init(this, bundle);
        LoadApplication(new App());
    }
}

// Xamarin.iOS

public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate
{
    public override bool FinishedLaunching(UIApplication app, NSDictionary options)
    {
        ServicePointManager
            .ServerCertificateValidationCallback +=
            (sender, cert, chain, sslPolicyErrors) => true;

        global::Xamarin.Forms.Forms.Init();
        LoadApplication(new App());

        return base.FinishedLaunching(app, options);
    }
}