SwiftUI - 动画调整视图框架的大小

问题描述

如何为视图的大小设置动画，以便视图可以使用框架高度来增大或缩小?我需要在两个已知维度之间进行转换.

How do you animate the size of a view, such that the view may grow or shrink using the frame height?I need to transition between two known dimensions.

推荐答案

我不确切知道您需要什么，但这里有一个非常基本的示例，其中 Rectangle 在您点击按钮:

I don't know exactly what you need but here is a very basic example with a Rectangle that gets scaled when you tap the Button:

struct ContentView: View {

    @State var animate = false

    var body: some View {
        VStack {
            Button(action: {
                withAnimation {
                    self.animate.toggle()
                }
            }, label: {
                Text("Animate")
            })
            Rectangle()
                .foregroundColor(.blue)
                .frame(width: self.animate ? 100 : 150, height: self.animate ? 60 : 90)
        }
    }
}

请在下一个问题中添加一些代码或编辑问题，以便人们提供更具体的答案.

Please add some code to your next question or edit the question so people can provide a more specific answer.

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