NEW: My new book Pro SwiftUI is out now – level up your SwiftUI skills today! >>

How to create asymmetric transitions

Paul Hudson    @twostraws   

Updated for Xcode 14.0 beta 1

SwiftUI lets us specify one transition when adding a view and another when removing it, all done using the asymmetric() transition type.

For example, we can create a text view that uses asymmetric transitions so that it moves in from the leading edge when added and moves down to the bottom edge when being removed, like this:

struct ContentView: View {
    @State private var showDetails = false

    var body: some View {
        VStack {
            Button("Press to show details") {
                withAnimation {
                    showDetails.toggle()
                }
            }

            if showDetails {
                Text("Details go here.")
                    .transition(.asymmetric(insertion: .move(edge: .leading), removal: .move(edge: .bottom)))
            }
        }
    }
}

Download this as an Xcode project

Hacking with Swift is sponsored by Stream

SPONSORED Build Chat messaging quickly with Stream Chat. The Stream iOS Chat SDK is highly flexible, customizable, and crazy optimized for performance. Take advantage of this top-notch developer experience, get started for free today!

Click here

Sponsor Hacking with Swift and reach the world's largest Swift community!

Similar solutions…

BUY OUR BOOKS
Buy Pro Swift Buy Pro SwiftUI Buy Swift Design Patterns Buy Testing Swift Buy Hacking with iOS Buy Swift Coding Challenges Buy Swift on Sundays Volume One Buy Server-Side Swift Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Advanced iOS Volume Three Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with macOS Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Beyond Code

Was this page useful? Let us know!

Average rating: 4.3/5

 
Unknown user

You are not logged in

Log in or create account
 

Link copied to your pasteboard.