swiftUI中带属性字符串的高度问题

属性化视图未正确更新属性化字符串的布局。下面是我的代码

我已经为SwiftUI创建了属性标签

import SwiftUI

class ViewLabel : UIView {
    private var label = UILabel()

    override init(frame: CGRect) {
        super.init(frame:frame)
        self.addSubview(label)
        label.numberOfLines = 0
        label.autoresizingMask = [.flexibleWidth, .flexibleHeight]
        label.lineBreakMode = .byWordWrapping
    }

    required init?(coder: NSCoder) {
        super.init(coder: coder)
    }

    func setString(_ attributedString:NSAttributedString) {
        self.label.attributedText = attributedString
    }
}

struct AHAttributedTextLabel: UIViewRepresentable {
    var attributedString:NSAttributedString

    func makeUIView(context: Context) -> ViewLabel {
        let view = ViewLabel(frame:CGRect.zero)
        return view
    }

    func updateUIView(_ uiView: ViewLabel, context: UIViewRepresentableContext<AHAttributedTextLabel>) {
        uiView.setString(attributedString)
    }
}

struct AHAttributedLabel_Previews: PreviewProvider {
    static var previews: some View {
        AHAttributedTextLabel(attributedString: NSAttributedString(string: "Test"))
    }
}

}

显示列表的内容视图

import SwiftUI

struct AHVitalGraphContentView: View {

    @ObservedObject var viewModel: AHVitalsGraphViewModel

    var body: some View {
            VStack{

                    List(self.viewModel.vitalGroup.vitals,id:\.vitalId) { vital in
                        AHAttributtedTitleSubtitleView(title: vital.attributedString, subTitle: vital.recorderDetails)
                    }


            }.navigationBarTitle(Text(self.viewModel.vitalGroup.latestReadings.vitalName ?? ""), displayMode: .inline)
    }
}

下面是附加的问题截图。你可以看到。。。。在列表单元格的顶部

---

提供的代码没有给出屏幕截图结果，实际上，不可测试。。。提供最少的可测试示例。在屏幕截图中忽略图形，我已从类AHVitalGraphContentView中删除了图形的代码

import SwiftUI

struct AHVitalGraphContentView: View {

    @ObservedObject var viewModel: AHVitalsGraphViewModel

    var body: some View {
            VStack{

                    List(self.viewModel.vitalGroup.vitals,id:\.vitalId) { vital in
                        AHAttributtedTitleSubtitleView(title: vital.attributedString, subTitle: vital.recorderDetails)
                    }


            }.navigationBarTitle(Text(self.viewModel.vitalGroup.latestReadings.vitalName ?? ""), displayMode: .inline)
    }
}