Swift

Learn more and get better in Swift using this list of Swift blog posts, tutorials, tips, and tricks.

Concurrent vs Serial DispatchQueue: Concurrency in Swift explained

Concurrent and Serial queues help us to manage how we execute tasks and help to make our applications run faster, ...
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  •  5 min Swift

Dark Mode: Adding support to your app in Swift

Dark Mode was introduced in iOS 13 and announced at WWDC 2019. It adds a darker theme to iOS and ...
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  •  7 min SwiftXcode

Core Data and App extensions: Sharing a single database

Core Data got better and better over the years with improved APIs that make it easier to work with. The ...
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  •  5 min Swift

Auto Layout in Swift: Writing constraints programmatically

Auto Layout constraints allow us to create views that dynamically adjust to different size classes and positions. The constraints will ...
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  •  6 min Swift

Optionals in Swift explained: 5 things you should know

Optionals are in the core of Swift and exist since the first version of Swift. An optional value allows us ...
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  •  5 min Swift

Rich notifications on iOS explained in Swift

Rich notifications on iOS allow us to make the boring default notification just a little nicer by adding images, GIFs, ...
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  •  7 min Swift

Unit tests best practices in Xcode and Swift

Writing unit tests is just as important as writing your application code. Unit tests are oftentimes the first to be ...
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  •  6 min SwiftXcode

Struct vs classes in Swift: The differences explained

Swift brings us classes and structs which both can look quite similar. When should you use a struct and when ...
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  •  4 min Swift

Error handling in Combine explained with code examples

Once you get started with Combine you'll quickly run into error handling issues. Each Combine stream receives either a value ...
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  •  4 min CombineSwift

Array vs Set: Fundamentals in Swift explained

An Array and a Set seem to be quite the same in the beginning. They're both collection types and have ...
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  •  4 min Swift

Xcode refactoring options explained with examples

A brand new Xcode refactoring engine was introduced in Xcode 9. Although this is quite a few Xcode versions ago ...
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  •  4 min SwiftWorkflow

UIKeyCommand how-to add keyboard shortcuts & speed up your workflow

The UIKeyCommand class allows you to add keyboard shortcuts to your app. Although they might seem useful for iPad only, ...
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  •  6 min SwiftWorkflow