CountdownView SwiftUI 视图

Swift

一个简单的视图，用于在重要的事情开始之前显示一系列视图。以下是如何使用它

@State var start = false

...

.overlay(
    CountdownView(startOn: $start,
                  steps: ["3️⃣", "2️⃣", "1️⃣", "🔥🔥🔥"]) {
        // Let the games begin!
    }
)

或者使用自定义背景、视图和动画

@State var start = false

...

.overlay(
    CountdownView(startOn: $start,
                  steps: ["3️⃣", "2️⃣", "1️⃣", "🔥🔥🔥"].map({ label in
                    AnyView(Text("\(label)")
                        .transition(.asymmetric(insertion: .move(edge: .leading),
                                                removal:   .move(edge: .trailing)))
                        .animation(.easeInOut(duration: 0.2)))
                  })) {
        // Let the games begin!
    }
    .background(
        Circle()
            .fill(Color.primary)
            .padding()
            .opacity(0.5)
    )
)