private PageViewItem CreateItem(float radius, float selectedRadius, UIColor itemColor, bool isSelect = false)
{
var item = new PageViewItem(radius, itemColor, selectedRadius, isSelect);
item.TranslatesAutoresizingMaskIntoConstraints = false;
item.BackgroundColor = UIColor.Clear;
this.AddSubview(item);
return item;
}
protected void AnimationItem(PageViewItem item, bool selected, double duration, bool fillColor = false)
{
var toValue = selected ? selectedItemRadius * 2: itemRadius * 2;
foreach(var constraint in item.Constraints)
{
if (constraint.GetIdentifier() == animationKey)
constraint.Constant = toValue;
}
UIView.Animate(duration, 0, UIViewAnimationOptions.CurveEaseOut, () =>
{
this.LayoutIfNeeded();
}, () => { });
item.AnimationSelected(selected, duration, fillColor);
}