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How to delay an animation

Paul Hudson    @twostraws   

Fully updated for Xcode 11.1

When you create any animation – implicitly, explicitly, or with bindings – you can attach modifiers to that animation to adjust the way it works. For example, if you want an animation to start after a certain number of seconds you should use the delay() modifier.

As an example, this creates a red rectangle that, when tapped, will rotate by 360 degrees using a two-second animation with a one-second delay:

struct ContentView: View {
    @State var rotation = 0.0

    var body: some View {
        Rectangle()
            .fill(Color.red)
            .frame(width: 200, height: 200)
            .rotationEffect(.degrees(rotation))
            .animation(Animation.easeInOut(duration: 3).delay(1))
            .onTapGesture {
                self.rotation += 360
            }
    }
}

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