protected override void OnAppearing()
{
base.OnAppearing();
Task.WhenAll(
Box1.FadeTo(1, 500, Easing.SinIn),
Box2.FadeTo(1, 500, Easing.SinIn),
Box3.FadeTo(1, 500, Easing.SinIn),
Box4.FadeTo(1, 500, Easing.SinIn),
Box5.FadeTo(1, 500, Easing.SinIn),
Box6.FadeTo(1, 500, Easing.SinIn),
Box7.FadeTo(1, 500, Easing.SinIn),
Box8.FadeTo(1, 500, Easing.SinIn),
Box9.FadeTo(1, 500, Easing.SinIn));
}