NEW: Subscribe to Hacking with Swift+ and accelerate your learning! >>

How to apply multiple animations to a view

Paul Hudson    @twostraws   

Updated for Xcode 12.0

The order in which we use SwiftUI’s animation() modifier affects which modifiers get animated, and it’s also possible to add multiple animation() modifiers in order to get different animations.

For example, we could write code to create a button that animates between enabled and disabled states, making the corner rounding and background color changes. If we wanted the corner rounding to animate but not the color change, we’d use an animation such as animation(.default) after the clip shape, then animation(nil) after the background, like this:

struct ContentView: View {
    @State var isEnabled = false

    var body: some View {
        Button("Tap Me") {
            self.isEnabled.toggle()
        }
        .foregroundColor(.white)
        .frame(width: 200, height: 200)
        .background(isEnabled ? Color.green : Color.red)
        .animation(nil)
        .clipShape(RoundedRectangle(cornerRadius: isEnabled ? 100 : 0))
        .animation(.default)
    }
}

Using this technique it’s possible to animate every modifier differently if you need to.

Hacking with Swift is sponsored by Instabug

SPONSORED Are you tired of wasting time debugging your Swift app? Instabug’s SDK is here to help you minimize debugging time by providing you with complete device details, network logs, and reproduction steps with every bug report. All data is attached automatically, and it only takes a line of code to setup. Start your free trial now and get 3 months off exclusively for the Hacking with Swift Community.

Start your free trial!

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

Similar solutions…

BUY OUR BOOKS
Buy Pro Swift 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 (Vapor Edition) 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 Server-Side Swift (Kitura Edition) Buy Beyond Code

Was this page useful? Let us know!

Average rating: 5.0/5

Link copied to your pasteboard.