circle image in cell imageView and how to resize it?

Question

I have in a ViewController tableView with the identifier \"Cell\". This is my code:

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSInd         


        

Answer 1

You cannot change an attribute of the frame property of any view. You have to provide a totally new frame.

cell.imageView?.frame.size.width = 100 //wont work

Try doing this -

let rect = cell.imageView?.frame;

rect.size.width = 100;

cell.imageView?.frame = rect; //this will work

Answer 2

You cannot change a frame width or height independently. You have to set the complete frame. In Objective C it would be something like

cell.imageView.frame = CGRectMake(cell.imageView.frame.origin.x, cell.imageView.frame.origin.y, 100, 100);

Answer 3

You can use this extension to crop the longest side of your image and return a squared UIImage:

extension UIImage {
    var squared: UIImage {
        let square = size.width < size.height ? CGSize(width: size.width, height: size.width) : CGSize(width: size.height, height: size.height)
        let imageView = UIImageView(frame: CGRect(origin: CGPoint(x: 0, y: 0), size: square))
        imageView.contentMode = UIViewContentMode.ScaleAspectFill
        imageView.image = self
        UIGraphicsBeginImageContext(imageView.bounds.size)
        imageView.layer.renderInContext(UIGraphicsGetCurrentContext())
        let result = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return result
    }
    var circle: UIImage {
        let square = size.width < size.height ? CGSize(width: size.width, height: size.width) : CGSize(width: size.height, height: size.height)
        let imageView = UIImageView(frame: CGRect(origin: CGPoint(x: 0, y: 0), size: square))
        imageView.contentMode = UIViewContentMode.ScaleAspectFill
        imageView.image = self
        imageView.layer.cornerRadius = square.width/2
        imageView.layer.masksToBounds = true
        UIGraphicsBeginImageContext(imageView.bounds.size)
        imageView.layer.renderInContext(UIGraphicsGetCurrentContext())
        let result = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return result
    }
    func resizeToWidth(width:Int)-> UIImage {
        let imageView = UIImageView(frame: CGRect(origin: CGPoint(x: 0, y: 0), size: CGSize(width: CGFloat(width), height: CGFloat(ceil(CGFloat(width)/size.width * size.height)))))
        imageView.contentMode = UIViewContentMode.ScaleAspectFit
        imageView.image = self
        UIGraphicsBeginImageContext(imageView.bounds.size)
        imageView.layer.renderInContext(UIGraphicsGetCurrentContext())
        let result = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return result
    }

}