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This allows us to use it as a SwiftUI view. The MTKView is a Metal-specific view provided by MetalKit, and it serves as the canvas for our Metal rendering. Metal Shaders in SwiftUI Metal shaders are at the heart of Metal programming. Shaders are small programs that run on the GPU ...
Type Name The type name is the name of a concrete type, including any generic parameters if the types have one.Here is an example.// 1 let stringDebugDescription = \String.debugDescription // KeyPath // 2 let userRole = \User.role // KeyPath // 3 let firstIndexInteger = \[Int][0]...
SwiftUI is a user interface toolkit that lets us design apps in a declarative way. That’s a fancy way of saying that we tell SwiftUI how we want our user interface to look and work, and it figures out how to make that happen as the user interacts with it.Declarative...
Want to learn how to use SwiftUI? Our latest post with app expert Reinder de Vries pulls back the curtain on SwiftUI to show you how to get started. Learn more,
Overall, Swift 5.2 is a minor release which is not necessarily a bad thing. It does bring many tweaks and minor improvements that will help the workflow of Swift developers. In this release, you’ll find:Better diagnostics with more helpful error messaging, especially for SwiftUI. New features...
When a user selects a particular item in the navigation stack, SwiftUI checks the item type of thevalueof the navigation link. It then calls up the destination view which associates with that specific item type. This is how the newNavigationStackworks. That said, it’s just a quick overvie...
This is a concrete nominal type in Swift, like structs, classes, and enums. Like classes, actors are reference types. This makes them useful for sharing state in your program. They have many of the same features as classes: you can give them properties, methods (async or otherwise...
any struct or class using a property wrapper with@MainActorfor its wrapped value will automatically be@MainActor. This is what makes@StateObjectand@ObservedObjectconvey "main-actor-ness" on SwiftUI views that use them – if you use either of those two property wrappers in a SwiftUI view, the...
by removing our tight dependency on UIKit, by eliminating some of the connection confusion you can run into with Interface Builder, and, yes, by enforcing the use of Swift, Apple is sending a clear message: we should be relying on tools as heavily as possible, and SwiftUI is a view of...