Inheritance: Rg.Plugins.Popup.Pages.PopupPage
        private async void OnLogin(object sender, EventArgs e)
        {
            var loadingPage = new LoadingPopupPage();
            await Navigation.PushPopupAsync(loadingPage);

            await Task.Delay(2000);

            await Navigation.RemovePopupPageAsync(loadingPage);

            await Navigation.PushPopupAsync(new LoginSuccessPopupPage());
        }
 private async void OnLogin(object sender, EventArgs e)
 {
     var loadingPage = new LoadingPopupPage();
     await Navigation.PushPopupAsync(loadingPage);
     await Task.Delay(2000);
     await Navigation.RemovePopupPageAsync(loadingPage);
     await Navigation.PushPopupAsync(new LoginSuccessPopupPage());
 }