private void Current_ModalPopping(object sender, ModalPoppingEventArgs e)
{
if (e.Modal == onbordingpage)
{
FadeBox.FadeTo(0, 1000);
onbordingpage = null;
App.Current.ModalPopping -= Current_ModalPopping;
}
}
private async void Button_Clicked(object sender, EventArgs e)
{
await FadeBox.FadeTo(1, 500);
await Navigation.PopModalAsync(false);
}