I am constructing app utilizing CoreData and on a stage of including knowledge I acquired an error when operating my app. This is the complete message: Thread 1: “Try and delete part containing first responder that refused to resign.nFirst responder that was requested to resign (returned YES from -resignFirstResponder): <UITextField: 0x130146000; body = (0 0; 249 22); opaque = NO; autoresize = W+H; gestureRecognizers = <NSArray: 0x600001df3750>; placeholder = Enter definition; borderStyle = None; background = <UITextFieldNoBackgroundProvider: 0x6000010e3620: textfield=<UITextField 0x130146000>>; layer = <CALayer: 0x60000122c240>> inside containing view: <SwiftUI.ListCollectionViewCell: 0x1341bec00; baseClass = UICollectionViewListCell; body = (20 35; 353 361); clipsToBounds = YES; layer = <CALayer: 0x600001238320>> at index path: <NSIndexPath: 0x833f455114c3dfbc> {size = 2, path = 0 – 0}nCurrent first responder: <TtGC7SwiftUI15CellHostingViewGVS_15ModifiedContentVS_14_ViewList_ViewVS_26CollectionViewCellModifier: 0x13107e200; body = (0 0; 353 361); autoresize = W+H; gestureRecognizers = <NSArray: 0x600001c333c0>; layer = <CALayer: 0x600001239ac0>> inside co”.
I suppose the difficulty is with the 2 arrays I’ve in DataConroller file or with the for loop which runs by way of dataController.termdefpairs when the “+” button is tapped.
The primary level of the this view is to have the ability to add knowledge for flashcards to have the ability to create a stack of them. Once I press the “save” button, I save the context and all of knowledge utilizing CoreData.
This is the view the place I enter the info (TermDefinitionView):
struct TermDefinitionView: View {
@ObservedObject var dataController = DataController.shared
@ObservedObject personal var viewModel = TermDefinitionViewModel()
@State var identify = ""
@State var time period = ""
@State var definition = ""
@State var tag = ""// Separate state for the identify
@Atmosphere(.managedObjectContext) var managedObjectContext
@Atmosphere(.dismiss) var dismiss
@State var showSet = false
//@Binding var saveSet: Bool
@State var isShowingSet = false
@State personal var currentSet: SetEntity?
//@Binding var redirectToSet: Bool
var physique: some View {
ZStack {
NavigationStack {
VStack {
Textual content("Title")
.padding(.trailing, 220)
.fontWeight(.daring)
TextField("Enter identify", textual content: $identify)
.body(width: 250)
.padding()
.overlay(RoundedRectangle(cornerRadius: 8).stroke(Coloration.grey, lineWidth: 1))
Record {
// ForEach($dataController.termdefpairs) { _ in
// TermView(time period: time period, definition: definition, tag: tag)
//
// }
ForEach(dataController.termdefpairs.indices, id: .self) { index in
TermView(time period: dataController.termdefpairs[index].time period, definition: dataController.termdefpairs[index].definition, tag: dataController.termdefpairs[index].tag)
}
.onDelete { index in
self.dataController.termdefpairs.take away(at: index.first!)
}
}
.navigationBarItems(trailing: Button(motion: {
//for testForm in viewModel.termdefpairs {}
dataController.termdefpairs.removeAll()
dataController.save() //saving knowledge
}) {
Textual content("Save")
//
})
Spacer()
Button(motion: {
dataController.addNew()
for pair in dataController.termdefpairs {
dataController.add(time period: pair.time period, definition: pair.definition, tag: pair.tag, date: Date(), identify: identify)
}
identify = ""
isShowingSet = true
dismiss()
}) {
Picture(systemName: "plus")
.resizable()
.foregroundColor(.white)
.font(.title2)
.body(width: 30, peak: 30)
}
.body(width: 40, peak: 40)
.background(Coloration.blue)
.clipShape(Circle())
.padding()
}
}
}
}
}
struct TermDefinitionView_Previews: PreviewProvider {
static var previews: some View {
TermDefinitionView()
}
}
struct TermView: View {
@State var time period: String
@State var definition: String
@State var tag: String
@State personal var isTagExpanded = false
var physique: some View {
VStack(alignment: .main, spacing: 20) {
if isTagExpanded {
VStack(alignment: .main, spacing: 8) {
Textual content("Tag")
.font(.headline)
TextField("Enter tag", textual content: $tag)
.padding()
.overlay(RoundedRectangle(cornerRadius: 8).stroke(Coloration.grey, lineWidth: 1))
}
}
Button(motion: {
isTagExpanded.toggle()
}) {
HStack {
Spacer()
Picture(systemName: isTagExpanded ? "minus.circle.fill" : "plus.circle.fill")
.resizable()
.foregroundColor(.blue)
.body(width: 25, peak: 25)
Textual content(isTagExpanded ? "Cover Tag" : "Add Tag")
.foregroundColor(.blue)
.font(.headline)
}
}
.padding(.backside, -25)
VStack(alignment: .main, spacing: 8) {
Textual content("Time period")
.font(.headline)
TextField("Enter time period", textual content: $time period)
.padding()
.overlay(RoundedRectangle(cornerRadius: 8).stroke(Coloration.grey, lineWidth: 1))
}
VStack(alignment: .main, spacing: 8) {
Textual content("Definition")
.font(.headline)
TextField("Enter definition", textual content: $definition)
.padding()
.overlay(RoundedRectangle(cornerRadius: 8).stroke(Coloration.grey, lineWidth: 1))
}
}
.padding()
}
}
struct TermAndDefinition: Identifiable {
var id = UUID()
var time period: String
var definition: String
var tag: String
}
DataController for managing knowledge:
class DataController: ObservableObject {
static let shared = DataController()
@Printed var termdefpairs: [TermAndDefinition] = []
@Printed var savedFlash: [FlashCardData] = []
let container: NSPersistentContainer
init(inMemory: Bool = false) {
container = NSPersistentContainer(identify: "CoreData")
if inMemory {
container.persistentStoreDescriptions.first!.url = URL(fileURLWithPath: "/dev/null")
}
// tremendous.init()
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
fatalError("Unresolved error (error), (error.userInfo)")
}
self.container.viewContext.mergePolicy = NSMergePolicy.mergeByPropertyObjectTrump
})
container.viewContext.automaticallyMergesChangesFromParent = true
fetchRequest()
}
func addNew() {
termdefpairs.append(TermAndDefinition(time period: "", definition: "", tag: ""))
// func add(time period: String, definition: String, tag: String, date: Date, identify: String) {
// let knowledge = FlashCardData(context: self.container.viewContext)
// knowledge.id = UUID()
// knowledge.definition = definition
// knowledge.time period = time period
// knowledge.tag = tag
// knowledge.date = date
// knowledge.identify = identify
// fetchRequest()
// }
}
func fetchRequest() {
let request: NSFetchRequest<FlashCardData> = FlashCardData.fetchRequest()
let type = NSSortDescriptor(keyPath: FlashCardData.date, ascending: false)
request.sortDescriptors = [sort]
do {
self.savedFlash = strive container.viewContext.fetch(request)
} catch {
print("Didn't fetch FlashCardData: (error)")
}
}
func save() {
do {
strive container.viewContext.save()
print("Information saved")
} catch {
print("We couldn't save the info...")
}
}
func add(time period: String, definition: String, tag: String, date: Date, identify: String) {
let knowledge = FlashCardData(context: self.container.viewContext)
knowledge.id = UUID()
knowledge.definition = definition
knowledge.time period = time period
knowledge.tag = tag
knowledge.date = date
knowledge.identify = identify
fetchRequest()
}
