Building a Multi-platform App with SwiftUI The Introduction to SwiftUI session at WWDC 2020 included content that focused on using SwiftUI to build multi-platform apps - i.e apps that work on both iOS and macOS. Building such apps can be done by separately building for each platform from a single codebase, or creating a Mac Catalyst app which runs an app built for iPad on macOS. In this post, Rick Wierenga looks at the former, providing a tutorial that shows us how to use a single codebase to build a HackerNews app for each platform. Posted on August 10, 2020 #swiftui #app #ios #macos
Creating custom .redacted effects The latest version of SwiftUI, available in Xcode 12, includes a redacted(reason:) view modifier. This modifier is used to hide the content of SwiftUI views, and while useful, is currently quite limited in the API it provides. In this post, Federico Zanetello explores how we can expand on what is currently available by adding custom redacted effects. Posted on August 9, 2020 #swiftui
Dependency Injection via Property Wrappers Property Wrappers in Swift allow us to add a layer of separation between code that manages how a property is stored and the code that defines a property. It's a powerful feature with a lot of potential use cases. Dependency injection is a software engineering technique used to supply dependencies to an object or value type. In this post, Kilo Loco demonstrates how we can use Swift property wrappers to pass dependencies to a SwiftUI view. It's a cool idea. Posted on August 7, 2020 #swiftui #property wrapper #dependency injection
Using MapKit with SwiftUI Apple continues to encourage the adoption of SwiftUI by creating more SwiftUI integrations for UIKit frameworks. In this post, Majid Jabrayilov describes the functionality available in the new SwiftUI Map type, which can be used to display MapKit maps in our SwiftUI apps. It's great to see more and more SwiftUI types like this, avoiding the need to mix SwiftUI and UIKit implementations. Posted on August 6, 2020 #swiftui #xcode12 #mapkit
Implementing Grid Layout in SwiftUI SwiftUI's LazyVGrid and LazyHGrid types, introduced in iOS 14, provide flexible grid layouts. In this post from the team at exyte, Denis Obukhov and Nikita Afonasov look at what a grid layout is, what features it has, and describe how their custom grid implementation differs from Apple's. Posted on August 5, 2020 #swiftui #grid #ios14
SwiftUI features in WidgetKit Apple's WidgetKit framework allows us to display relevant content from an app on the iOS Home screen or in Notification Center on macOS. SwiftUI is used to build widgets, and it has gained new features designed specifically for the task. In this post, Federico Zanetello explores some of these new features and includes examples of how they might be used in more general contexts. Posted on August 4, 2020 #swiftui #widgetkit
Activity Indicators in SwiftUI Activity indicators and progress bars are UI components that can be used to inform users that an app is performing some task and to give them some idea of how long they will be waiting. In this post, Sarah provides some examples of such UI components implemented in SwiftUI. Posted on August 3, 2020 #swiftui #ios
RedditOS - A SwiftUI Reddit client for macOS Big Sur This open-source SwiftUI app created by Thomas Ricouard is a Reddit client for macOS. It's great to see apps like this being developed as open-source projects, as it provides opportunities for collaboration and learning from others in the Swift community. Note - you need macOS Big Sur to run this app. Posted on August 2, 2020 #swiftui #app #open-source
Sidebar navigation in SwiftUI SwiftUI's NavigationView type - used for presenting a stack of views representing a navigation hierarchy - is incredibly powerful, enabling us to build complex layouts that adapt to the platform they are running on. In this post, Majid Jabrayilov shows us how to use a NavigationView to add a third sidebar column to a two-column master-detail navigation layout. Posted on August 2, 2020 #swiftui #ios14 #ipados
SwiftUI Hierarchy List New in iOS 14 is the ability to easily create hierarchical lists using SwiftUI's List view type. Given a recursive data model that contains optional children of the same type as the parent, a List will display a tree-like structure with expandable rows. In this post, Federico Zanetello shows us how to implement our version of a hierarchical list, creating a custom type that is compatible with iOS 13. I like the approach Federico takes in his posts. Implementing our version of existing types and APIs is a great way of learning more about how the original versions work. Posted on August 1, 2020 #swiftui #ios14