ContentSizeView.swift

ContentSizeView.swift

class ContentSizeView: UIView {
    override var intrinsicContentSize: CGSize {
        return contentSize ?? CGSize(width: UIView.noIntrinsicMetric, height: UIView.noIntrinsicMetric)
    }

    var contentSize: CGSize? {
        didSet {
            invalidateIntrinsicContentSize()
        }
    }

    init(frame: CGRect, contentSize: CGSize?) {
        super.init(frame: frame)
        self.contentSize = contentSize
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
}