Runar Ovesen Hjerpbakk

Software Philosopher

Cross-platform SwiftUI - challenges and solutions →

Today’s article delves into the world of cross-platform development utilizing SwiftUI.

In this context, cross-platform refers to the ability to deploy a single app across multiple Apple platforms, leveraging a shared codebase written in SwiftUI. This approach, while efficient, presents unique challenges. The article aims to offer effective solutions, focusing on critical areas such as:

  • Layout and User Interface Adaptation: The key challenge in cross-platform development is achieving a UI that excels on all devices, for which SwiftUI’s ResponsiveView is essential; it dynamically adapts content to different environments, such as device types or screen sizes, using layout changes and environmental properties like size classes for a more responsive design.

  • Platform-Specific Features and Capabilities: Apple platforms, each with unique features and APIs, require tailored coding approaches in SwiftUI, like conditional compilation and the use of extensions and typealiases, to streamline cross-platform functionality and maintain focus on the app’s business logic.

  • Performance Optimization: Remember that the watch is a tiny supercomputer on your wrist, not a gargantuan supercomputer.

  • Working with Previews: SwiftUI’s preview feature significantly aids in cross-platform development by allowing developers to view real-time UI changes and validate how their app appears on various devices, using PreviewProvider and .previewDevice() to simultaneously preview the app on different platforms like iPhones and iPads.

Read the article Cross-platform SwiftUI to learn more.