Swift blog posts, tutorials, tips, and tricks

JSON Parsing in Swift explained with code examples

JSON parsing in Swift is a common thing to do. Almost every app decodes JSON to show data in a ...
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• 5 min read Jan 21, 2020 Swift

Ranges in Swift explained with code examples

Ranges in Swift allow us to select parts of Strings, collections, and other types. They're the Swift variant of NSRange ...
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• 4 min read Jan 14, 2020 Swift

SwiftLee 2019 in review: Top Swift Development blog posts

You know it's been a great year if you have the feeling that it went really fast. After looking back ...
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• 5 min read Dec 31, 2019 Swift

Advanced asynchronous operations by making use of generics

Asynchronous operations allow you to write long-running tasks in a distinct matter while being able to add dependencies between several ...
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• 6 min read Dec 10, 2019 Swift

Asynchronous operations for writing concurrent solutions in Swift

Asynchronous operations allow executing long-running tasks without having to block the calling thread until the execution completes. It's a great ...
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• 5 min read Dec 03, 2019 Swift

Getting started with Operations and OperationQueues in Swift

Operations in Swift are a powerful way to separate responsibilities over several classes while keeping track of progress and dependencies ...
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• 3 min read Nov 26, 2019 Swift

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 read Nov 12, 2019 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 read Nov 05, 2019 Swift Xcode

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 read Oct 29, 2019 Core Data 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 read Oct 22, 2019 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 read Oct 15, 2019 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 read Sep 17, 2019 Swift