Can'；t在SwiftUI中选择同一行两次

我有一个包含多个部分和行的导航列表。我选择一行foo，它将导航到我想要的视图。但是，当我返回到根视图时，我不能选择row foo。我轻触row foo，什么也没发生

我轻触行栏，该行将我发送到其视图。回到根视图。然后我不能选择RowBar，但现在RowFoo可以工作了

这是SwiftUI中的错误还是设计行为？当我离开视图时，是否需要执行某些操作来重置视图

NavigationView {
            List {
Section(header: shoppingListData.lastItemSection.sectionHeader, footer: shoppingListData.lastItemSection.sectionFooter) {
            ForEach(0..<shoppingListData.lastItemSection.sectionRows.count) { index in
                ShoppingItemRow(shoppingListData: self.shoppingListData,
                                rowItem: self.shoppingListData.lastItemSection.sectionRows[index])
            }
        }
}
}

运行XCode版本11.2.1（11B500）和 iOS 13.3测试版

有关详细信息，请添加ShoppingItemRow

struct ShoppingItemRow: View {

    @ObservedObject var shoppingListData: ShoppingListData
    @ObservedObject var rowItem: ShoppingItems

    var id: UUID {
        return rowItem.uuidKey
    }

    var body: some View {
        NavigationLink(destination: ShoppingItemPage(shoppingListData: shoppingListData, shoppingItem: rowItem)) {
            HStack(alignment: .center) {
                VStack(alignment: .leading)  {
                    rowName
                    rowDescription
                    rowPremiumDescription
                }
                Spacer()
                VStack(alignment: .trailing) {
                    rowPrice
                    rowPremium
                }
            }.padding(3)
            }.background(premiumColor)
    }

    var rowName: Text {
        if let msp = rowItem.minStorePackage {
            return Text(msp.brandName).font(.body).fontWeight(.bold)
        }
        // fall through
        return Text(rowItem.myName).font(.body).fontWeight(.bold)
    }

    var rowPrice: Text {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let pr = msp.pkgCost(pkgQty: dq)
            return Text(pr.cash()).font(.body)
        } else if let mp = rowItem.minPackage {
            let dq = mp.defQty
            let pr = mp.pkgCost(pkgQty: dq)
            return Text(pr.cash()).font(.body)
        } else {
            return Text("rowPrice Test")
            // return Text("0").hidden() as! Text
        }
    }

    var rowPremium: Text? {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let pc = msp.premiumCents(pkgQty: dq)
            if pc == 0 {
                return Text("0").hidden() as? Text
            } else {
                return Text(pc.cash()).font(.caption)
            }
        } else {
            return Text("0").hidden() as? Text
        }
    }

    var rowDescription: Text? {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let unitText: String
            if msp.pkgInteger {
                if dq == 1 {
                    unitText = "\(msp.pkgSize.basicString()) \(rowItem.myUnit.myName)"
                } else {
                    unitText = "\(dq.basicString()) x [\(msp.pkgSize.basicString()) \(rowItem.myUnit.myName)]"
                }
            } else {
                unitText = "\((dq * msp.pkgSize).basicString()) \(rowItem.myUnit.myName)"
            }
            let thisText = "\(unitText) \(msp.costX()) (\(msp.stdPrice.cash())/\(rowItem.myUnit.myName))"
            return Text(thisText).font(.caption)
        } else {
            return Text("").hidden() as? Text
        }
    }

    var rowPremiumDescription: Text? {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let premium = msp.premiumCents(pkgQty: dq)
            if premium == 0 {
                return Text("Minimum price at \(shoppingListData.dataStack.currentReceipt.myStore!.longName).").font(.caption)
            } else {
                let mp = rowItem.minPackage!
                return Text("\(premium.cash()) cheaper at \(mp.myStore.longName)").font(.caption)
            }
        } else if let mp = rowItem.minPackage {
            let dq = mp.defQty
            let pc = "Minimum price \(mp.pkgCost(pkgQty: dq).cash()) (\(mp.stdPrice.cash()) \(rowItem.myUnit.myName)) at "
            let storeName = mp.myStore.longName
            return Text("\(pc)\(storeName)").font(.caption)
        } else {
            return Text("").hidden() as? Text
        }
    }

    var premiumColor: Color {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let pc = msp.premiumCents(pkgQty: dq)
            if pc == 0 {
                return Color.yellow
            } else {
                return Color.clear
            }
        } else {
            return Color.clear
        }
    }

}

---

我也有同样的问题，看这个。这个问题只发生在9.7英寸的物理iPad上。模拟器中没有，我的iPhone上也没有。

苹果在iOS 13.3 beta 4中修复了该漏洞。请记住，在您测试iOS 13.3时，iOS 13.3处于测试阶段。这在iOS 13.2中不是一个bug，所以这再也不用担心了

iOS 13.3版本的更新：

---

该错误已在物理设备上修复，但仍然存在于emulator上。

您能提供一些示例数据以查看吗？添加了另一个示例。更有趣的是

ShoppingItemRow

中的内容这是一个带有NavigationLink的错误，很容易在小样本中重现。请参阅我的帖子：。请在反馈助手中报告这一点，以便苹果注意。我已在反馈助手中报告。下载beta 4。是的，它修复了它。13.3已经过了测试版，但我刚刚遇到了这个问题。在运行13.3的所有模拟器（电话和PAD）上发生。还没有在物理设备上测试过；iOS 13.3.1对我来说，不是通过模拟器工作，而是通过设备工作。

struct ShoppingItemRow: View {

    @ObservedObject var shoppingListData: ShoppingListData
    @ObservedObject var rowItem: ShoppingItems

    var id: UUID {
        return rowItem.uuidKey
    }

    var body: some View {
        NavigationLink(destination: ShoppingItemPage(shoppingListData: shoppingListData, shoppingItem: rowItem)) {
            HStack(alignment: .center) {
                VStack(alignment: .leading)  {
                    rowName
                    rowDescription
                    rowPremiumDescription
                }
                Spacer()
                VStack(alignment: .trailing) {
                    rowPrice
                    rowPremium
                }
            }.padding(3)
            }.background(premiumColor)
    }

    var rowName: Text {
        if let msp = rowItem.minStorePackage {
            return Text(msp.brandName).font(.body).fontWeight(.bold)
        }
        // fall through
        return Text(rowItem.myName).font(.body).fontWeight(.bold)
    }

    var rowPrice: Text {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let pr = msp.pkgCost(pkgQty: dq)
            return Text(pr.cash()).font(.body)
        } else if let mp = rowItem.minPackage {
            let dq = mp.defQty
            let pr = mp.pkgCost(pkgQty: dq)
            return Text(pr.cash()).font(.body)
        } else {
            return Text("rowPrice Test")
            // return Text("0").hidden() as! Text
        }
    }

    var rowPremium: Text? {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let pc = msp.premiumCents(pkgQty: dq)
            if pc == 0 {
                return Text("0").hidden() as? Text
            } else {
                return Text(pc.cash()).font(.caption)
            }
        } else {
            return Text("0").hidden() as? Text
        }
    }

    var rowDescription: Text? {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let unitText: String
            if msp.pkgInteger {
                if dq == 1 {
                    unitText = "\(msp.pkgSize.basicString()) \(rowItem.myUnit.myName)"
                } else {
                    unitText = "\(dq.basicString()) x [\(msp.pkgSize.basicString()) \(rowItem.myUnit.myName)]"
                }
            } else {
                unitText = "\((dq * msp.pkgSize).basicString()) \(rowItem.myUnit.myName)"
            }
            let thisText = "\(unitText) \(msp.costX()) (\(msp.stdPrice.cash())/\(rowItem.myUnit.myName))"
            return Text(thisText).font(.caption)
        } else {
            return Text("").hidden() as? Text
        }
    }

    var rowPremiumDescription: Text? {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let premium = msp.premiumCents(pkgQty: dq)
            if premium == 0 {
                return Text("Minimum price at \(shoppingListData.dataStack.currentReceipt.myStore!.longName).").font(.caption)
            } else {
                let mp = rowItem.minPackage!
                return Text("\(premium.cash()) cheaper at \(mp.myStore.longName)").font(.caption)
            }
        } else if let mp = rowItem.minPackage {
            let dq = mp.defQty
            let pc = "Minimum price \(mp.pkgCost(pkgQty: dq).cash()) (\(mp.stdPrice.cash()) \(rowItem.myUnit.myName)) at "
            let storeName = mp.myStore.longName
            return Text("\(pc)\(storeName)").font(.caption)
        } else {
            return Text("").hidden() as? Text
        }
    }

    var premiumColor: Color {
        if let msp = rowItem.minStorePackage {
            let dq = msp.defQty
            let pc = msp.premiumCents(pkgQty: dq)
            if pc == 0 {
                return Color.yellow
            } else {
                return Color.clear
            }
        } else {
            return Color.clear
        }
    }

}