Hello
In my app I have a list of items in a ForEach and at the end of the ForEach there is a .onDelete. (This is in a View that I called AllHistoryView)
The items are represented by a CoreData NSManagedObject that I called LifetimeInputs with 3 properties:
date: Date, imageTemplate: String, valori: Double
The problem is that, when I add (in a different View) an item with the date of tomorrow and then I add another to item with the date of today and then go to the AllHistoryView where there are all the items and delete slowly the item with date of tomorrow (especially at the end of the swipe action) instead of deleting the item that I swiped it deletes the on before it, how can I solve this problem?
Here is the AllHistoryView code:
import SwiftUI
import CoreData
struct AllHistoryView: View {
@Environment(\.managedObjectContext) var viewContext
@FetchRequest(entity: LifetimeInputs.entity(), sortDescriptors: [NSSortDescriptor(keyPath: \LifetimeInputs.date, ascending: true)], animation: .default) var lifetimeInputsModel: FetchedResults<LifetimeInputs>
@State private var text: String = ""
@State private var ascending: Bool = true
@State var sortDescriptor: NSSortDescriptor = NSSortDescriptor(keyPath: \LifetimeInputs.date, ascending: true)
@Environment(\.dynamicTypeSize) var dynamicTypeSize
var size: CGFloat{
if UIDevice.current.userInterfaceIdiom == .phone {
switch dynamicTypeSize {
case .xSmall: return 11
case .small: return 13
case .medium: return 15
case .large: return 17
case .xLarge: return 19
case .xxLarge: return 21
case .xxxLarge: return 23
default: return 23
}
} else {
switch dynamicTypeSize {
case .xSmall: return 13
case .small: return 15
case .medium: return 17
case .large: return 19
case .xLarge: return 21
case .xxLarge: return 23
case .xxxLarge: return 25
case .accessibility1: return 27
case .accessibility2: return 29
default: return 29
}
}
}
var body: some View {
theView()
}
@ViewBuilder
func theView() -> some View{
NavigationView{
if !lifetimeInputsModel.isEmpty{
List{
SectionList(sortDescripter: sortDescriptor, text: $text)
.environment(\.managedObjectContext, viewContext)
.onChange(of: ascending, perform: { _ in
if ascending {
withAnimation {
sortDescriptor = NSSortDescriptor(keyPath: \LifetimeInputs.date, ascending: true)
}
} else {
withAnimation {
sortDescriptor = NSSortDescriptor(keyPath: \LifetimeInputs.date, ascending: false)
}
}
})
}
.searchable(text: $text, placement: .navigationBarDrawer, prompt: "Quantity or date".localized())
.navigationBarTitle("History", displayMode: .inline)
.toolbar{
ToolbarItem(placement: .automatic) {
Image(systemName: "arrow.up.arrow.down.circle")
.foregroundColor(.primary)
.font(.system(size: size))
.rotation3DEffect(.degrees(ascending ? 0 : 180), axis: (x: 1, y: 0, z: 0))
.opacity(0.5)
.onTapGesture {
ascending.toggle()
}
}
}
} else{
VStack{
Text("No Data".localized())
.font(.largeTitle)
.fontWeight(.semibold)
.foregroundColor(.secondary)
}
.padding(.bottom)
.navigationBarTitle("History", displayMode: .inline)
}
}
}
}
struct SectionList: View {
@Environment(\.managedObjectContext) var viewContext
@FetchRequest var lifetimeInputsModel: FetchedResults<LifetimeInputs>
@Binding var text: String
init(sortDescripter: NSSortDescriptor, text: Binding<String>) {
let request: NSFetchRequest<LifetimeInputs> = LifetimeInputs.fetchRequest()
request.sortDescriptors = [sortDescripter]
_lifetimeInputsModel = FetchRequest<LifetimeInputs>(fetchRequest: request)
self._text = text
}
@FetchRequest(entity: Limit.entity(), sortDescriptors: [NSSortDescriptor(keyPath: \Limit.date, ascending: true)], animation: .default) var limit: FetchedResults<Limit>
@Environment(\.dynamicTypeSize) var dynamicTypeSize
var size: CGFloat{
if UIDevice.current.userInterfaceIdiom == .phone {
switch dynamicTypeSize {
case .xSmall: return 11
case .small: return 13
case .medium: return 15
case .large: return 17
case .xLarge: return 19
case .xxLarge: return 21
case .xxxLarge: return 23
default: return 23
}
} else {
switch dynamicTypeSize {
case .xSmall: return 13
case .small: return 15
case .medium: return 17
case .large: return 19
case .xLarge: return 21
case .xxLarge: return 23
case .xxxLarge: return 25
case .accessibility1: return 27
case .accessibility2: return 29
default: return 29
}
}
}
@StateObject var lifeTimeInputsViewModel = LifeTimeInputsViewModel()
var body: some View {
Section{
ForEach(lifetimeInputsModel.filter { text.isEmpty || "\($0)".contains(text) }){ lifetimeInputs in
HStack{
Text("\(lifetimeInputs.valori, specifier: format(unita: !limit.isEmpty ? limit[0].unita ?? ml : ml)) \(!limit.isEmpty ? limit[0].unita ?? ml: ml)")
.font(.system(size: size))
Spacer()
Text("\(dateFormatter.string(from: lifetimeInputs.date ?? Date()))")
.font(.system(size: size))
}
}
.onDelete(perform: { offsets in
lifeTimeInputsViewModel.deleteItems(offsets: offsets)
})
} header: {
Text("History".localized()).font(.system(size: size - 4))
}
}
}
Thank You very much!