private void OnBackRequested(object sender = null, BackRequestedEventArgs e = null)
{
if (TextInputOverlay.Visibility == Visibility.Visible)
{
TextInputOverlay.Visibility = Visibility.Collapsed;
if (e != null)
{
e.Handled = true;
}
txtInput.Text = "";
frame.Focus(FocusState.Programmatic);
}
else if (discoverer.HandleBackButton())
{
if (e != null)
{
e.Handled = true;
}
}
else
{
if (frame.CanGoBack)
{
frame.GoBack();
e.Handled = true;
}
}
}