protected override void LayoutView()
{
View.AddConstraints(new FluentLayout[]
{
_txtSubTotal.AtTopOfSafeArea(View),
_txtSubTotal.WithSameCenterX(View),
_sliderGenerosity.Below(_txtSubTotal, 10f),
_sliderGenerosity.AtLeftOfSafeArea(View, 10f),
_sliderGenerosity.AtRightOfSafeArea(View, 10f),
//_sliderGenerosity.WithSameCenterX(View),
_lblTip.Below(_sliderGenerosity, 10f),
_lblTip.WithSameWidth(View)
});
}