Categories and global functions to make life easier.
Jan 3 2017
(Xcode 8.0, OSX 10.11) For the app I am currently working on, I wanted to implement the following: – user can import a picture – user can change their mind and undo their choice, up to a point – I don’t need to store a million images in my app And there are many ways […]
Jan 1 2017
Xcode 8.0, Swift 3, OSX 10.11 The following is a good example of creating your own operators. In the two years since first writing this, I have not found an actual use for this, but it appears to be a common operator in Ruby, and has been implemented several times in Swift. My example code […]
Dec 26 2016
Xcode 8, macOS 10.11 (I will test this with 10.12. Settings mostly borrowed from https://littlebitesofcocoa.com/89-custom-xcode-file-templates. Credit for working this out mainly goes to them, but I wanted to add a few additional observations. Also, I’m working on macOS rather than iOS.) When you are using certain classes a lot in your projects, having them as […]
Dec 5 2016
macOS 10.11/Xcode 8.0 Sometimes, you want items to have serial numbers. This is, to me, the neatest way of creating such unique identifiers – simply use a static variable, and assign it to each new item before incrementing it in the initialiser. class HazSerialNumber { static var serialCounter: Int = 1 let serial: Int init(){ […]
Jan 8 2017
Awesome Extensions: Selector
Credit for extending Selector goes entirely to Andyy Hope (@AndyyHope) who posted this article on Medium: He looks at the problem of Swift selector syntax being somewhat unwieldy, and turns it into [code language=”plain”]fileprivate extension Selector { static let buttonTapped = #selector(ViewController.buttonTapped(_:)) }[/code] Thanks to fileprivate, you don’t get namespacing conflicts. Awesome. So I […]
By Extelligent Cocoa • Extensions, Wiki • • Tags: NotificationCentre, NSNotification.Name, Selector