Draw dotted (not dashed!) line, with IBDesignable in 2017

Question

It\'s easy to draw a dashed line with UIKit. So:

CGFloat dashes[] = {4, 2};
[path setLineDash:dashes count:2 phase:0];
[path stroke];
         


        

Answer 1

Not a full answer, just a very important gotcha that James P raised in a comment on the favourite answer:

He wrote:

I've found setting the on length to 0.01 gives you a circular dot, whereas they are slightly elongated when using 0.

For example,

   let dashes: [CGFloat] = [0.001, path.lineWidth * 2]