Set rounded corners on UIimage in UICollectionViewCell in swift

Well you're using part of the code from the answer you said you were using. the other part is imageView.clipsToBounds = true

Update your awakeFromNib like this:

override func awakeFromNib() {
    mImage.layer.cornerRadius = 5 
    mimage.clipsToBounds = true
}

To make it a circle you need to set cornerRadius to half of the square height. In your cellForItemAtIndexPath add these lines:

cell.layoutIfNeeded()
cell.mImage.layer.cornerRadius = cell.mImage.frame.height/2

Update

To avoid layoutSubviews from being called twice, override layoutSubviews in your DescriptionCell class and put the code there:

override func layoutSubviews() {
    super.layoutSubviews()
    layoutIfNeeded()
    mImage.layer.cornerRadius = mImage.frame.height/2
}

Have you tried placing it inside the custom UICollectionViewCell's init function?

override init(frame: CGRect) {
    super.init(frame: frame)

    image.layer.masksToBounds = true
    image.layer.cornerRadius = 10
}

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