问列表中HStacks的数量是否有限制(SwiftUI)？
EN

Stack Overflow用户

提问于 2020-02-03 00:51:05

回答 1查看 133关注 0票数 0

我在SwiftUI中有一个列表，用于显示视图模型。奇怪的是，当我在列表中指定最后一个HStack时，视图就不再编译了。以下内容正确地编译和工作：

struct LandingResultView: View {
    @Binding var dryLand: LandingViewModel
    @Binding var wetLand: LandingViewModel

    var body: some View {
        GeometryReader { geo in
            List {
                HStack {
                    Text("30T")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.throttles30)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.throttles30)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("10T")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.throttles10)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.throttles10)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("0T")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.throttles0)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.throttles0)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("30F")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.flaps30)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.flaps30)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("10F")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.flaps10)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.flaps10)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("0F")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.flaps0)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.flaps0)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("Land 30")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.landing30)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.landing30)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("Land 10")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.landing10)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.landing10)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("Land 0")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.landing0)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.landing0)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("HB")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.hb)")
                        .frame(width: geo.size.width * 0.6)
                }
            }
        }
    }
}

以下内容不编译，也不会呈现。我知道SwiftUI很挑剔，但我看不出我在哪里出了问题：

struct LandingResultView: View {
    @Binding var dryLand: LandingViewModel
    @Binding var wetLand: LandingViewModel

    var body: some View {
        GeometryReader { geo in
            List {
                HStack {
                    Text("30T")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.throttles30)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.throttles30)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("10T")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.throttles10)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.throttles10)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("0T")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.throttles0)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.throttles0)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("30F")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.flaps30)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.flaps30)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("10F")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.flaps10)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.flaps10)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("0F")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.flaps0)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.flaps0)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("Land 30")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.landing30)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.landing30)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("Land 10")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.landing10)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.landing10)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("Land 0")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.landing0)")
                        .frame(width: geo.size.width * 0.3)
                    Text("\(self.wetLand.landing0)")
                        .frame(width: geo.size.width * 0.3)
                }
                HStack {
                    Text("HB")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.hb)")
                        .frame(width: geo.size.width * 0.6)
                }
                HStack {
                    Text("HB")
                        .frame(width: geo.size.width * 0.2)
                    Text("\(self.dryLand.hb)")
                        .frame(width: geo.size.width * 0.6)
                }
            }
        }
    }
}

我故意重复上一个HStack，以排除我所显示的内容可能出现的任何问题。任何帮助都将不胜感激！

swift

listview

swiftui

回答 1

Stack Overflow用户

回答已采纳

发布于 2020-02-03 00:54:44

10，试着使用Group将它们分成10组。

票数 1

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/60031977

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