带 Wrap 的 SwiftUI HStack [英] SwiftUI HStack with Wrap

问题描述

是否有可能将蓝色标签(当前被截断)完全显示，然后自动换行?

Is it possible that the blue tags (which are currently truncated) are displayed completely and then it automatically makes a line break?

NavigationLink(destination: GameListView()) {
  VStack(alignment: .leading, spacing: 5){
    // Name der Sammlung:
    Text(collection.name)
      .font(.headline)

    // Optional: Für welche Konsolen bzw. Plattformen:
    HStack(alignment: .top, spacing: 10){
      ForEach(collection.platforms, id: .self) { platform in
        Text(platform)
          .padding(.all, 5)
          .font(.caption)
          .background(Color.blue)
          .foregroundColor(Color.white)
          .cornerRadius(5)
          .lineLimit(1)
      }
    }
  }
  .padding(.vertical, 10)
}

此外，蓝色标签中不应有换行符:

Also, there should be no line breaks with in the blue tags:

最后应该是这样的:

推荐答案

这里有一些方法可以说明如何使用alignmentGuide(s).为了避免很多代码发布，它被简化了，但希望它有用.

Here is some approach of how this could be done using alignmentGuide(s). It is simplified to avoid many code post, but hope it is useful.

更新:还有更新&在我对 SwiftUI HStack 的回答中改进了以下解决方案的变体，具有环绕和动态高度

Update: There is also updated & improved variant of below solution in my answer for SwiftUI HStack with wrap and dynamic height

结果如下:

这里是完整的演示代码(自动支持方向):

And here is full demo code (orientation is supported automatically):

import SwiftUI

struct TestWrappedLayout: View {
    @State var platforms = ["Ninetendo", "XBox", "PlayStation", "PlayStation 2", "PlayStation 3", "PlayStation 4"]

    var body: some View {
        GeometryReader { geometry in
            self.generateContent(in: geometry)
        }
    }

    private func generateContent(in g: GeometryProxy) -> some View {
        var width = CGFloat.zero
        var height = CGFloat.zero

        return ZStack(alignment: .topLeading) {
            ForEach(self.platforms, id: .self) { platform in
                self.item(for: platform)
                    .padding([.horizontal, .vertical], 4)
                    .alignmentGuide(.leading, computeValue: { d in
                        if (abs(width - d.width) > g.size.width)
                        {
                            width = 0
                            height -= d.height
                        }
                        let result = width
                        if platform == self.platforms.last! {
                            width = 0 //last item
                        } else {
                            width -= d.width
                        }
                        return result
                    })
                    .alignmentGuide(.top, computeValue: {d in
                        let result = height
                        if platform == self.platforms.last! {
                            height = 0 // last item
                        }
                        return result
                    })
            }
        }
    }

    func item(for text: String) -> some View {
        Text(text)
            .padding(.all, 5)
            .font(.body)
            .background(Color.blue)
            .foregroundColor(Color.white)
            .cornerRadius(5)
    }
}

struct TestWrappedLayout_Previews: PreviewProvider {
    static var previews: some View {
        TestWrappedLayout()
    }
}

这篇关于带 Wrap 的 SwiftUI HStack的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！