protected override void OnElementChanged(ElementChangedEventArgs <SegmentView> e)
{
base.OnElementChanged(e);
if (e.NewElement == null)
{
return;
}
if (Control == null)
{
_control = new UISegmentedControl();
for (int i = 0; i < Element.Children.Count; i++)
{
var segment = Element.Children.ElementAt(i);
if (segment.Image != null)
{
var img = NativeImage.FromFile(((FileImageSource)segment.Image).File);
img = img.Scale(new CoreGraphics.CGSize(17, 17)); // Apple docs
_control.InsertSegment(img, i, false);
}
else
{
_control.InsertSegment(segment.Title, i, false);
}
}
_control.ClipsToBounds = true;
_control.TintColor = Element.TintColor.ToUIColor();
_control.SelectedSegment = Element.SelectedIndex;
_control.BackgroundColor = Element.BackgroundColor.ToUIColor();
_control.Layer.MasksToBounds = true;
_control.Layer.BorderColor = Element.IsBorderColorSet()
? Element.BorderColor.ToCGColor()
: Element.TintColor.ToCGColor();
if (Element.IsCornerRadiusSet())
{
_control.Layer.CornerRadius = Element.CornerRadius;
_control.Layer.BorderWidth = (nfloat)Element.BorderWidth;
}
SetSelectedTextColor();
SetNativeControl(_control);
}
if (e.OldElement != null && _control != null)
{
_control.ValueChanged -= OnSelectedIndexChanged;
}
if (e.NewElement != null)
{
_control.ValueChanged += OnSelectedIndexChanged;
}
}