async void FlipButton(object sender, EventArgs e)
{
uint timeout = 500;
if (RedButton.IsVisible)
{
GreenButton.RotationY = -270;
await RedButton.RotateYTo(-90, timeout, Easing.SpringIn);
RedButton.IsVisible = false;
GreenButton.IsVisible = true;
await GreenButton.RotateYTo(-360, timeout, Easing.SpringOut);
GreenButton.RotationY = 0;
}
else
{
RedButton.RotationY = -270;
await GreenButton.RotateYTo(-90, timeout, Easing.SpringIn);
GreenButton.IsVisible = false;
RedButton.IsVisible = true;
await RedButton.RotateYTo(-360, timeout, Easing.SpringOut);
RedButton.RotationY = 0;
}
}
