Learn SwiftUI

Implicit animations

Let's start by creating a new playground project. Do this by clicking File | New | Playground. Call the project anything you like and add the following code to prepare your playground for SwiftUI:

import SwiftUIimport PlaygroundSupportstruct ContentView: View {    var body: some View {    }}PlaygroundPage.current.setLiveView(ContentView())

Now that we've got our playground set up, let's add some content to do. We'll start by adding a basic button and a Text view just beneath it:

struct ContentView: View {    var body: some View {        VStack {            Button("Tap to Animate") {            }            Text("Learn SwiftUI")        }    }}

Great! Now, let's make the button disappear and reappear when we click it. We'll achieve this by changing the opacity of the Text view (the ...