private async void OnNavigating(object sender, WebNavigatingEventArgs args)
{
if (args.Url.StartsWith("black://localhost/auth/spotify", StringComparison.CurrentCulture))
{
web.Navigating -= OnNavigating;
var uri = new Uri(args.Url);
if (uri.Query.StartsWith("?code=", StringComparison.CurrentCulture))
{
string code = uri.Query.TrimStart('?').Split('&').First().Split('=').LastOrDefault();
AuthorizationCodeAuth auth = await AuthorizationCodeAuth.GetToken(code);
Application.Current.Resources["auth"] = auth;
Application.Current.Properties["auth"] = auth.RefreshToken;
await Application.Current.SavePropertiesAsync();
Application.Current.MainPage = new NavigationPage(new IndexPage());
}
}
}