Neural Networks in iOS 10 and macOS
iOS MacApple has been using machine learning in their products for a long time—Siri answers our questions and entertains us, iPhoto recognizes faces in our...
WWDC 2016: Increased Safety in Swift 3.0
iOS MacSwift 3.0 changes the semantics of `ImplicitlyUnwrappedOptional`, and is even safer than its previous incarnations. What has changed in Swift 3.0 for this type...
WWDC 2016: A Quick Look at APFS
iOS MacWWDC 2016. New Notification Center features? Eh. Bouncy sticker graphics giant emoji in Messages? Blah. New file system? ...
WWDC 2016: Developer Reading List
iOS MacWith the advent of WWDC comes a lot of new information. Don't want to wait for the WWDC 2016 videos? Start with our list...
WWDC 2016: Continued Maturation, More Monetization
Clients iOS MacAs I type, Apple's yearly developer conference, (https://developer.apple.com/wwdc/live/), is in full swing. The keynote can be watched via Apple TV and their website,...
Creating a Custom XCTest Assertion
iOS Leveling Up MacApple's bundled test framework XCTest provides a very limited, general collection of assertions. These get the job done much of the time, but sometimes...
Protocol-Oriented Problems and the Immutable ‘self’ Error
iOS MacProtocol-oriented programming leverages Swift's features in a powerful way, but there are practical concerns, like whether you want both value types and reference types...
Hi! I’m #available!
iOS MacAs app developers, we don't have the luxury of shipping our software exclusively on the latest-and-greatest OS version. We want to use the new...
Introducing the Open-Source Big Nerd Ranch Core Data Stack
iOS MacWhen we at the Ranch use Core Data, we inevitably end up using it in a multi-threaded environment. The Right Way™ to use Core...
Swift 2.0 Error Handling
iOS MacAs my fellow Nerd (https://nerdranchighq.wpengine.com/about/the-team/juan-pablo-claude/) pointed out in his post on (https://nerdranchighq.wpengine.com/blog/error-handling-in-swift-2/), the latest iteration of Swift introduces...
We’ve Got You Covered: Code coverage and Xcode 7
iOS MacOne of Xcode 7’s new features is in-line display of code coverage metrics. Yay? That’s a pretty dull way of describing a nice feature....
Error Handling in Swift 2.0
iOS MacWhen Apple announced Swift 2.0 at this year’s WWDC, Swift’s main architect, Chris Lattner, indicated that the 2.0 update to the language focused on three...
