protected override void OnElementChanged(ElementChangedEventArgs <Image> e)
{
base.OnElementChanged(e);
if (e.OldElement != null || Element == null)
{
return;
}
try{
CustomCircleImage circle = (CustomCircleImage)Element;
double min = Math.Min(Element.Width, Element.Height);
Control.Layer.CornerRadius = (float)(min / 2.0);
Control.Layer.MasksToBounds = false;
Control.Layer.BorderColor = new CGColor(circle.rgb.r, circle.rgb.g, circle.rgb.b);
Control.Layer.BorderWidth = 3;
Control.ClipsToBounds = false;
}catch (Exception ex) {
}
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
if (e.PropertyName == VisualElement.HeightProperty.PropertyName ||
e.PropertyName == VisualElement.WidthProperty.PropertyName)
{
try{
CustomCircleImage circle = (CustomCircleImage)Element;
double min = Math.Min(Element.Width, Element.Height);
Control.Layer.CornerRadius = (float)(min / 2.0);
Control.Layer.MasksToBounds = false;
Control.Layer.BorderColor = new CGColor(circle.rgb.r, circle.rgb.g, circle.rgb.b);
Control.Layer.BorderWidth = 3;
Control.ClipsToBounds = true;
}
catch (Exception ex) {
}
}
}
protected override bool DrawChild(Canvas canvas, global::Android.Views.View child, long drawingTime)
{
try{
var radius = Math.Min(Width, Height) / 2;
var strokeWidth = 10;
radius -= strokeWidth / 2;
Path path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
canvas.Save();
canvas.ClipPath(path);
CustomCircleImage circle = (CustomCircleImage)Element;
var result = base.DrawChild(canvas, child, drawingTime);
canvas.Restore();
path = new Path();
path.AddCircle(Width / 2, Height / 2, radius, Path.Direction.Ccw);
var paint = new Paint();
paint.AntiAlias = true;
paint.StrokeWidth = 5;
paint.SetStyle(Paint.Style.Stroke);
paint.Color = global::Android.Graphics.Color.Rgb(circle.rgb.r, circle.rgb.g, circle.rgb.b);
// = global::Android.Graphics.Color.Pink;
canvas.DrawPath(path, paint);
paint.Dispose();
path.Dispose();
return(result);
}catch (Exception ex) {
}
return(base.DrawChild(canvas, child, drawingTime));
}
