我有这个代码：
struct CreateInfo: Identifiable {
var id: String
var name: String
var time: String
var day: String
var isDeleted: Bool
}
struct ZettelView: View {
@State var zettelInfos = [CreateInfo]()
@State private var showingAlert = false
@State private var savedValueForDeleteFunction: CreateInfo
func createNewInfo() {
var arr = [[String]]()
arr = getZettelData()
for x in arr {
zettelInfos.append(CreateInfo(id: "(x[0])", name: "(x[1])", time: "(x[2])", day: "(x[3])", isDeleted: false))
}
self.executeThisAsyncThing = false
}
@State var executeThisAsyncThing: Bool = true
var body: some View {
DispatchQueue.main.async {
if self.executeThisAsyncThing {
self.createNewInfo()
}
}
return VStack {
//New - testing
NavigationView {
List {
ForEach(zettelInfos) { x in
NavigationLink(destination: zettelDetailView(uuid: x.id, info: x)) {
Text("(x.id)")
}
}.onDelete(perform: delete)
}.navigationBarTitle("Einkaufszettel")
.navigationBarItems(trailing: Button(action: {
self.addRow()
}) {
Image(systemName: "plus.app.fill")
})
}
.alert(isPresented: $showingAlert) {
Alert(title: Text(" meImportantssage"), message: Text("Wear sunscreen"), dismissButton: .default(Text("Got it!")))
}
}
}
func delete(at offsets: IndexSet) {
zettelInfos.remove(atOffsets: offsets)
self.showingAlert = true
}
private func addRow() {
let dateAndTime = Date()
let dfDay = DateFormatter()
let dfTime = DateFormatter()
dfDay.dateFormat = "dd.MM.yyyy"
dfTime.dateFormat = "HH:mm:ss"
let day = dfDay.string(from: dateAndTime)
let time = dfTime.string(from: dateAndTime)
let x = CreateInfo(id: UUID().uuidString, name: "Neuer Zettel", time: time, day: day, isDeleted: false)
saveZettelData(x: x)
zettelInfos.append(x)
}
}
所以我的问题是，如何将ForEach中的x变量解析为delete func？
我为什么要这个->foreach中的x变量有一个UUID，我需要来自x的UUID
你们中有人知道如何从x获得UUID吗？
这是我第一个使用swift的应用程序，我正在努力学习，但在某些情况下，它与我所知道的其他语言不同。通常，我会将一个值解析为delete函数，然后对其进行迭代，以找到并删除特定的行/数据，但在swift中，我想这是另一种方法。
这里有一种让它的方法
func delete(at offsets: IndexSet) {
let index = offsets[offsets.startIndex]
let x = zettelInfos[index]
// ... do anything needed with x.id now
zettelInfos.remove(atOffsets: offsets)
self.showingAlert = true
}