iOS: Round image view

Swift

     

        imageView.layer.cornerRadius = imageView.frame.height/2

        imageView.clipsToBounds = true

Objective C

self.imageView.layer.cornerRadius = self. imageView.frame.size.width/2;
self. imageView.layer.borderColor = [UIColor whiteColor].CGColor;
self. imageView.layer.borderWidth = 2;

self. imageView.layer.masksToBounds = YES;

Interface Builder

Note: 

1) If you are using constraints make sure that the constraint height is the same as the image view size in the interface builder
2) You can't set border color in IB