Learn Swift and iOS Development
Master iOS development through in-depth tutorials and comprehensive courses on Swift, SwiftUI, UIKit, Core Data, and more.
Cocoa
3 posts
Key-Value Observing (KVO) and Swift 3
Key-Value Observing, KVO for short, is an important concept of the Cocoa API. It allows objects to be notified when the state of another object changes. That sounds very useful. Right?
in Cocoa
Exploring Application Did Finish Launching with Options
In this tutorial, we take a close look at one of the key methods of the UIApplicationDelegate protocol, application(_:didFinishLaunchingWithOptions:). As the name suggests, this method is called when your app finish launching. It is an ideal moment to set up your app and prepare it for the user.
in Cocoa
Everything You Need to Know About Deployment Targets
You need to understand what a deployment target is if you plan to develop for iOS (and iPadOS), tvOS, macOS, or watchOS. In this episode, you learn everything you need to know about deployment targets, how to set a target's deployment target in Xcode, and when it is appropriate to change the minimum deployment target.
in Cocoa