How to add support for paginated API responses to SwiftUI lists — My latest SwiftUI demo project fetches data from a REST API and then paginates the responses. That’s why I was looking for an easy way to add pagination support to the SwiftUI List view. In the current beta (Xcode 11 beta 5), there isn’t a ready-to-use functionality provided. …

Type Erasure explained through common use cases — Some of you may already be familiar with Type Erasure and know how to use it. But I’m certain there are still people out there which don’t know about it or don’t know how to use it. Honestly, I didn’t take a look at it before writing my article about…

Implement a dynamic list with empty, error, and loading state — Update 2019/08/14: Now available as a Swift package 🚀 Motivation What do I mean by advanced list? The app I’m currently working on has many dynamic lists which can represent different states, such as empty, error, items or loading. I implemented a solution, on top of the data-driven framework IGListKit, to…

How to implement basic UI components in SwiftUI Updated on 07/06/2019: Xcode 11 beta 3 Updated on 07/07/2019: TextField and SecureField initializer changes Updated on 07/17/2019: List, ForEach, ActionSheet, Modal, DatePicker and Alert changes (Xcode 11 beta 4) Updated on 7/29/2019: TabView (previously named TabbedView): tabItem modifier supports images, Alert…

A long time ago our iOS team decided to try the VIPER Architecture pattern. There are a lot of variations of that pattern around. Over time, we have had a wide variety of use cases for which the classic VIPER Architecture (see below) doesn’t offer standardised solutions. That’s why we…