This is indeed correct behaviour as overload resolution takes place at compile time (it would be a pretty expensive operation to take place at runtime). Therefore from within test(value:), the only thing the compiler knows about value is that it’s of some type that conforms to DispatchType – thus the only overload it can dispatch … Read more
You must be as fast as possible in your onClick implementation. Expensive operations should be, in general, offloaded to a background thread. In onClick, try: Thread t = new Thread(){ public void run(){ your_stuff(); } }; t.start(); instead of just your_stuff()
Functions are first class objects in Python and so you can dispatch using a dictionary. For example, if foo and bar are functions, and dispatcher is a dictionary like so. dispatcher = {‘foo’: foo, ‘bar’: bar} Note that the values are foo and bar which are the function objects, and NOT foo() and bar(). To … Read more
tl;dr: Use the class constant approach if you are using Swift 1.2 or above and the nested struct approach if you need to support earlier versions. From my experience with Swift there are three approaches to implement the Singleton pattern that support lazy initialization and thread safety. Class constant class Singleton { static let sharedInstance … Read more