如何使用 SwiftUI 扩展按钮的宽度 [英] How to extend the width of a button using SwiftUI

问题描述

我不知道如何在 SwiftUI 中更改按钮的宽度.

I cannot figure out how to change the width of buttons in SwiftUI.

我已经尝试过:使用 .frame(minWidth: 0, maxWidth: .infinity),在按钮和导航链接周围使用 Spacer()，在文本字段上使用框架并在按钮上使用填充，查看文档以及我在网上搜索时发现的其他一些内容.然而，没有任何改变按钮的宽度.

I have already attempted: using .frame(minWidth: 0, maxWidth: .infinity), using Spacer() around the button and navigationlink, using frame on the Text field and padding on the button, look through the documentation, as well as a few other things I found while just searching online. However nothing changes the buttons width whatsoever.

NavigationLink(destination: Home(), isActive: self.$isActive) { Text("") }
Button(action: { self.isActive = true }) { LoginBtn() }

struct LoginBtn: View {
    var body: some View {
        Text("Login")
            .fontWeight(.bold)
            .padding()
            .foregroundColor(Color.white)
            .background(Color.orange)
            .cornerRadius(5.0)
    }
}

当前按钮的照片

我想让按钮扩展到与使用的 TextFields 的宽度相似.同样，我知道已经发布了答案，但由于某种原因我无法让我的工作.谢谢！

I would like to have the button to extend to be similar to the width of the TextFields used. Again, I know there have been answers posted but for some reason I cannot get mine to work. Thanks!

推荐答案

声明你自己的按钮样式:

Declare your own button style:

struct WideOrangeButton: ButtonStyle {

    func makeBody(configuration: Configuration) -> some View {
        configuration.label
            .padding()
            .frame(minWidth: 0,
                   maxWidth: .infinity)
            .foregroundColor(.white)
            .padding()
            .background( RoundedRectangle(cornerRadius: 5.0).fill(Color.orange)
        )
    }
}

然后像这样使用它:

Button(action: { self.isActive = true }) {
        Text("Login")
           .fontWeight(.bold)
    }   .buttonStyle(WideOrangeButton())

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