Xamarin Ios - Create rounded buttons on only 1 side

Question

I\'m currently developing an App for Xamarin Ios and i\'m struggling to find a way to apply a rounded border to simply one side off a button of a UIButton type.

Answer 1

In your UIButton subclass, override the LayoutSubviews method and add a mask:

Example: Top and bottom of left side rounded:

public override void LayoutSubviews()
{
    var maskingShapeLayer = new CAShapeLayer()
    {
        Path = UIBezierPath.FromRoundedRect(Bounds, UIRectCorner.BottomLeft | UIRectCorner.TopLeft, new CGSize(20, 20)).CGPath
    };
    Layer.Mask = maskingShapeLayer;
    base.LayoutSubviews();
}