InterfaceBuilderTricks-1

UIVIew+stringTag.swift

private var stringTagHandle: UInt8 = 0

extension UIView {
	
	//use Objective C Associated Object API to add this property to UIView
	@IBInspectable public var stringTag:String? {
		get {
			if let object = objc_getAssociatedObject(self, &stringTagHandle) as? String {
				return object
			}
			return nil
		}
		set {
			objc_setAssociatedObject(self, &stringTagHandle, newValue, objc_AssociationPolicy(OBJC_ASSOCIATION_RETAIN_NONATOMIC))
		}
	}
	
	//this should work in a similar way to viewWithTag:
	public func viewWithStringTag(strTag:String) -> UIView? {
		
		if stringTag == strTag {
			return self
		}
		
		for view in subviews as! [UIView] {
			if let matchingSubview = view.viewWithStringTag(strTag) {
				return matchingSubview
			}
		}
		
		return nil
	}
}