public override void Draw(CGRect rect)
{
base.Draw(rect);
GradientStack stack = (GradientStack)Element;
CGColor startColor = stack.StartColor.ToCGColor();
CGColor endColor = stack.EndColor.ToCGColor();
CAGradientLayer gradientLayer;
if (stack.Orientation == StackOrientation.Horizontal)
{
gradientLayer = new CAGradientLayer
{
StartPoint = new CGPoint(0, 0.5),
EndPoint = new CGPoint(1, 0.5)
};
}
else
{
gradientLayer = new CAGradientLayer();
}
gradientLayer.Frame = rect;
gradientLayer.Colors = new CGColor[] { startColor, endColor };
NativeView.Layer.InsertSublayer(gradientLayer, 0);
}
protected override void OnElementChanged(ElementChangedEventArgs <StackLayout> e)
{
base.OnElementChanged(e);
if (e.OldElement != null || Element == null)
{
return;
}
try
{
stack = e.NewElement as GradientStack;
StartColor = stack.StartColor;
EndColor = stack.EndColor;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(@"Error: ", ex.Message);
}
}
public override void Draw(CGRect rect)
{
base.Draw(rect);
GradientStack stack = (GradientStack)this.Element;
CGColor[] cGColors = new CGColor[] { stack.StartColor.ToCGColor(), stack.EndColor.ToCGColor() };
CAGradientLayer gradientLayer = new CAGradientLayer
{
Frame = rect,
Colors = cGColors
};
if (!stack.IsVertical)
{
gradientLayer = new CAGradientLayer()
{
StartPoint = new CGPoint(0, 0.5),
EndPoint = new CGPoint(1, 0.5),
};
}
NativeView.Layer.InsertSublayer(gradientLayer, 0);
}
