In your journeys with Swift since 4.2 released, you may have seen the CaseIterable protocol when working with enums. Since this is a relatively new language feature in 4.2, you might wonder what that is or what it does. In this article on raywenderlich.com, Getting to Know Enum, Struct and Class Types in Swift, Adam …
This article from the Big Nerd Ranch blog goes back to 2016, but it’s a great little rundown by Mark Dalrymple of #available, introduced back in Swift 2.0. Hi! I’m #available! Sometimes we just use language features like this and don’t really think about what’s going on under the hood when we use them, or perhaps …
This is a pretty great one-stop-shopping resource for Auto Layout by Paul Hudson. The Auto Layout cheat sheet – Hacking with Swift Auto Layout is a powerful tool for creating flexible, maintainable rules for your user interface. It can also be a real brain vortex if you’re unlucky – it’s something that makes hard things …
Handy Swift Resource: Hacking With Swift’s Auto Layout Cheat Sheet Read More »
When developing in Swift, you will eventually need to interact with Objective-C APIs. Most of the time this is fine, and fairly straightforward to do using #selector. However, every once in a while you will need to invoke an Objective-C selector that you did not write (usually when the selector is part of the iOS …
When Worlds Collide: How to call complex Objective-C selectors from Swift Read More »
I’m happy to announce that I recently updated Part Two of my Zero-to-BLE series on Core Bluetooth Post Updated for Swift at Cloud City Development Blog! It’s been updated for Swift 2, because when I wrote it, Swift 3 hadn’t officially been released and I honestly thought it would be published well in advance of …
Big thanks to Curt Clifton (https://github.com/curtclifton – his bio indicates that he’s with the Omni Group!) for creating this codeless Language Module for Swift that can be used in BBEdit and in TextWrangler. A BBEdit Codeless Language Module for Swift Curt indicates there are some limitations to codeless language modules: Keyword, comment, and string highlighting …
Syntax highlighting for Swift in BBEdit and TextWrangler Read More »
Here’s the scenario. You want to display a modal view controller without a navigation bar, and then from that view controller you want to navigate to another view controller that displays a navigation bar. First to get things set up, in the Storyboard we set up the view controller that would be displayed modally. We …
Smoother transitions when showing a View Controller with a UINavigationBar in Swift Read More »
Super important to know during this time of Objective-C to Swift transition. I’ve had to use this technique and it will be good for all Swift developers to have in their kit-bag until we can finally be 100% Swift. How to create an Objective-C Bridging header – iOS-Blog So you want to use an Objective-C …
Here is a very simple way to do UIView Animations in Swift. First, you create an IBOutlet for a constraint created in Interface Builder in Xcode – in my case, I had a constraint that anchored to the bottom of the containing view. In the code example, the constraint is named “constraintToAnimate”. You just control …