protected override void OnElementChanged(ElementChangedEventArgs <Frame> e)
{
base.OnElementChanged(e);
if (e.OldElement != null || Element == null)
{
return;
}
try
{
GradientFrame stack = e.NewElement as GradientFrame;
StartColor = stack.StartColor;
EndColor = stack.EndColor;
_cornerRadius = stack.CornerRadius;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(@"ERROR:", ex.Message);
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Frame> e)
{
base.OnElementChanged(e);
if (e.NewElement != null)
{
frame = e.NewElement as GradientFrame;
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Frame> e)
{
base.OnElementChanged(e);
if (Control != null && e.NewElement != null)
{
grid = e.NewElement as GradientFrame;
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Xamarin.Forms.Frame> e)
{
base.OnElementChanged(e);
if (e.NewElement != null)
{
frame = e.NewElement as GradientFrame;
}
if (Control != null)
{
border = Control;
border.Loaded += this.Border_Loaded;
}
}
public override void Draw(CGRect rect)
{
base.Draw(rect);
GradientFrame stack = (GradientFrame)Element;
CGColor startColor = stack.StartColor.ToCGColor();
CGColor endColor = stack.EndColor.ToCGColor();
var gradientLayer = new CAGradientLayer
{
StartPoint = new CGPoint(0, 0.5),
EndPoint = new CGPoint(1, 0.5)
};
gradientLayer.Frame = rect;
gradientLayer.Colors = new CGColor[] { startColor, endColor };
NativeView.Layer.InsertSublayer(gradientLayer, 0);
}
