I have some class (class A: UIView) that conforms protocol UIGestureRecognizerDelegate from third-party library. I need to extend this class by adding some optional UIGestureRecognizerDelegate method, for example gestureRecognizer:shouldRequireFailureOfGestureRecognizer:. How to do that? I have tried writing an extension for…
I'm pretty new in the iOS development world and I'm trying to understand protocols in Swift. Here's my code: protocol Animal { func printFood() } struct Rabbit: Animal { func printFood() { print("carrot") } } struct Sheep: Animal { func…
I'm a bit confused by an error I'm seeing in the new Xcode beta around the new any syntax in Swift. I have a view that takes an any Hashable, and I'm trying to pass that to a parameter that…
I'm building a Converter to convert my DataObjects to ModelObjects and vice versa. I currently have two functions to do the converting. One for each conversion. Currently, both of my conversion functions do exactly the same thing with exceptions to…
I have a following method: private func returnNilIfEmpty<T: Collection>(_ collection: T?) -> T? { guard let collection = collection else { return nil } return collection.isEmpty ? nil : collection } I'd like to extend the Collection API to use…