The Apple Watch has become the premier device for health, fitness, and workout tracking. So now that authorization is setup on the iPhone, let’s take a look at how get authorization setup on the Apple Watch.
WWDC 2018 – Swift 4.2 and “Random” Changes
With WWDC 2018, Swift 4.2 has introduced new ways to generate and access random values from a collection. Often times, app developers will do this when building games or creating test data. Let’s take a look at the old way and the new way to access random items.
HealthKit – Getting Started – HKObjectType and Authorization
HealthKit is the most important API when it comes to building health, fitness and workout apps. HealthKit also has many intricacies and details which need introduction when getting started.
The data structures encourage precision while having the flexibility to store a variety of values. The way it asks users give app access HealthKit will probably be similar with many iOS developers. HealthKit follows many patterns in other iOS APIs such as Core Location or Core Data. At the same time it uses newer programming techniques and newer technology.
Understanding Optionals in Swift
Optionals are a fairly unique concept in Swift. While Objective-C used pointers which could be nil and C# had a Nullable generics type for value types, Swift has an inherent syntax for optionals as well as wrapping and unwrapping them.
ScriptingBridge – Communicating with Swift and AppleScript
AppleScript is a great technology on macOS for both developers and power users. With AppleScript, users can create automated processes which work other apps. As a developer though, sometimes you want a build an app in Xcode with the power of AppleScript without the need to have separate script files. That’s where ScriptingBridge comes in.