New property wrappers in SwiftUI SwiftUI allows us to declaratively build our user interfaces, while also indicating data dependencies for our views. We indicate these dependencies using data management types, which are implemented in SwiftUI as property wrappers such as State and Binding. With iOS 14, SwiftUI introduces additional property wrappers to help us manage state and data flow, and in this post, Majid shows us how we can use them. Posted on July 6, 2020 #swiftui #ios14 #wwdc20
How SwiftUI can now be used to build entire iOS apps At this year's WWDC20, SwiftUI received some very impressive updates. One of them is the ability to create an entry point for an app without needing to rely on UIKit/AppKit. What this means is that we can now build an entire app using SwiftUI. In this post, John Sundell shows us how simple it is to build such an app. Posted on July 5, 2020 #swiftui #ios14 #xcode12 #wwdc20
Use PinnedScrollableViews to make sticky headers In this short post from Yo! Swift, we learn how to use the new SwiftUI PinnedScrollableViews type to implement sticky headers in a scrollable view. Posted on July 5, 2020 #swiftui #wwdc20
Add custom SwiftUI view to View Library with LibraryContentProvider Xcode's library allows us to quickly access commonly used SwiftUI system elements such as views and modifiers. New to iOS 14 and Xcode 12 is the ability to add our own custom SwiftUI views to the library. This post from Sarun shows us how to do it. Posted on July 4, 2020 #ios14 #xcode12 #swiftui
Enabling high-performance Metal rendering with drawingGroup() As many iOS devices now render at 120 frames per second, it's important we consider performance when rendering complex content. In this post from Paul Hudson, we learn how to use the drawingGroup view modifier to improve rendering when using SwiftUI. Posted on July 3, 2020 #swiftui #performance
Grouping Array Elements With Dictionary in Swift Swift 5 introduced a new initializer for Dictionary, which allows us to create a dictionary of grouped elements from an input array. Here, Lee Kah Seng demonstrates how we can use this initializer to group array elements based on a custom property of the array element type. Posted on July 3, 2020 #array #dictionary
SwiftUI: Two equal width columns SwiftUI provides built-in view modifiers which we can apply to views to produce a different version of the original view. One such modifier is frame(width:height:alignment:), which when applied to a view positions it within an invisible frame with the specified size. In this post, Noah Gilmore shows us how we can use the frame modifier to create a view consisting of two equal width columns. Posted on July 2, 2020 #swiftui
SwiftUI Tips and Tricks Anupam Chugh has compiled a list of tips and tricks to help us build our SwiftUI applications. Check them out. Posted on July 1, 2020 #swiftui
SwiftUI: Double-Edged Sword I really like this short post from Mohsen Alijanpour. One of the many benefits of migrating to SwiftUI from the world of UIKit, which assumes we will build using the MVC pattern, is that SwiftUI is architecure-less. That is, SwiftUI doesn't assume what architectural pattern we will use when building. Here, Mohsen highlights this freedom, while also reminding us that such freedom comes at the cost of more responsibility. Posted on July 1, 2020 #swiftui #uikit #architecture
Using SceneStorage for State Restoration in SwiftUI Apps iOS 14 introduces a new SwiftUI property wrapper, SceneStorage. In this short post, Natalia Panferova shows us how we can use it to persist tab selection in a tab-based app. Posted on June 30, 2020 #ios14 #swiftui