Understanding opaque return types in Swift 5.1
If you have spent some time with SwiftUI or if you have watched the WWDC videos on SwiftUI this year, you may have noticed that views in SwiftUI have a property called body of type Read more…
An introduction to generics in Swift using its built-in types
Whenever we write code, we want our code to be well-designed. We want it to be flexible, elegant and safe. We want to make sure that Swift’s type system and the compiler catch as many Read more…
Efficiently loading images in table views and collection views
When your app shows images from the network in a table view or collection view, you need to load the images asynchronously to make sure your list scrolls smoothly. More importantly, you’ll need to somehow Read more…
Appropriately using DispatchQueue.main
Lots of iOS developers eventually run into code that calls upon DispatchQueue.main. It’s often clear that this is done to update the UI, but I’ve seen more than a handful of cases where developers use Read more…
Changes to location access in iOS 13
If you’re working on an app that requires access to a user’s location, even when your user has sent your app to the background, you might have noticed that when you ask the user for Read more…
Using launch arguments for easier Core Data debugging
If you use Core Data in your apps, you might be aware that the larger and more complicated your set up becomes, the harder it is to debug. It’s at this point where you might Read more…