UIView Rotation using swift issue

Question

I would like to rotate UIView which defined on the storyboard I used

CGAffineTransform(rotationAngle: self.degreesToRadians(5))

which degreesToradians a function to convert to Radians, the rotation is working perfectly but the only problem is the UIView not vectorial (the edge of the view is not rendered properly and it looks like a saw) like in the screenshot below :

Answer 1

I have had the same problems as you and to solve it I just add a border to the view which is transparent, do it like this:

customView.layer.borderWidth = 1
customView.layer.borderColor = UIColor.clear.cgColor // important that it is clear
customView.layer.shouldRasterize = true
customView.layer.rasterizationScale = UIScreen.main.scale

Add that code after your rotation code.

With the code:

Without the code: