我正在尝试解码一些JSON并将其打印到列表中,当前收到此错误消息,
ForEach,Int,Text>计数(626)!=其初始计数(0)。 ForEach(_:content:)
仅应用于constant数据。而是使数据符合Identifiable
或使用ForEach(_:id:content:)
并提供明确的id
!
我可以通过访问结果来打印特定票证[0]但我无法将所有结果返回到视图。
这是我的ListView
struct WOListView: View {
@EnvironmentObject var ticketData:ControlCenter
var body: some View {
VStack {
Text(String(self.ticketData.jsonData?.result[0].ticketID?.ticketID ?? 0))
List{
ForEach(0 ..< (self.ticketData.jsonData?.result.count ?? 0)) {
Text(String(self.ticketData.jsonData?.result[$0].ticketID?.ticketID ?? 0))
}
}
}
}
}
struct WOListView_Previews: PreviewProvider {
static var previews: some View {
WOListView().environmentObject(ControlCenter())
}
}
WorkOrderResults.swift
struct WorkOrderResults: Codable{
var result:[Result]
enum CodingKeys:String, CodingKey{
case result = "Result"
}
struct Result:Codable{
var ticketID:TicketID?
var summary:Summary?
var status:Status?
var catagory:Catagory?
enum CodingKeys:String, CodingKey{
case ticketID = "1"
case summary = "22"
case status = "96"
case catagory = "164"
}
struct TicketID:Codable {
var ticketID:Int?
enum CodingKeys: String, CodingKey{
case ticketID = "Value"
}
}
在这里找到了我的问题的答案!view-is-not-rerendered-in-nested-foreach-loop!
将WOListView更改为以下外观...
var body: some View {
VStack {
Text(String(self.ticketData.jsonData?.result[0].ticketID?.ticketID ?? 0))
ForEach(0 ..< (self.ticketData.jsonData?.result.count ?? 0), id: \.self) {
Text(String(self.ticketData.jsonData?.result[$0].ticketID?.ticketID ?? 0))
}
}
}