Assign xib to the UIView in Swift

Question

in objective c it can be done in init method by

-(id)init{
    self = [[[NSBundle mainBundle] loadNibNamed:@\"ViewBtnWishList\" owner:0 options:nil]     obje         


        

Answer 1

instead of adding an extension to UIView, you could define a protocol and add the implementation to a protocol extension. You can then declare that UIView conforms to the protocol.

This allows the return type to be Self instead of UIView. So the caller doesn't have to cast to the class.

Explained here: https://stackoverflow.com/a/33424509/845027

import UIKit

protocol UIViewLoading {}
extension UIView : UIViewLoading {}

extension UIViewLoading where Self : UIView {

  // note that this method returns an instance of type `Self`, rather than UIView
  static func loadFromNib() -> Self {
    let nibName = "\(self)".characters.split{$0 == "."}.map(String.init).last!
    let nib = UINib(nibName: nibName, bundle: nil)
    return nib.instantiateWithOwner(self, options: nil).first as! Self
  }

}