How to add a border to a circular image with mask

Question

This is my attempt:

func round() {
    let width = bounds.width < bounds.height ? bounds.width : bounds.height
    let mask = CAShapeLayer()
    mask.path         


        

Answer 1

The easiest way is to manipulate the layer of the image view itself.

imageView.layer.cornerRadius = imageView.bounds.size.width / 2.0
imageView.layer.borderWidth = 2.0
imageView.layer.borderColor = UIColor.whiteColor.CGColor
imageView.layer.masksToBounds = true

You can include this in viewDidLayoutSubviews or layoutSubviews to make sure the size is always correct.

NB: Maybe this technique makes your circle mask obsolete ;-). As a rule of thumb, always choose the simplest solution.