Hello,
I have the problem that my todos are not only assigned to one project (one-to-many). They are displayed in the same way in every project. What have I done wrong?
Die HauptApp:
import SwiftData
@main
struct consiliaApp: App {
var body: some Scene {
WindowGroup {
ProjektView()
}.modelContainer(for: Projekte.self)
}
}
Das Datenmodell:
import SwiftData
@Model
final class Projekte {
var name: String
var info: String
var startdate: Date
var enddate: Date
var startadresse: String
var zieladresse: String
var priority: Int
@Relationship(deleteRule: .cascade, inverse: \Todo.projekte)
var todos: [Todo]? = []
init(name: String, info: String, startdate: Date, enddate: Date, startadresse: String, zieladresse: String, priority: Int) {
self.name = name
self.info = info
self.startdate = startdate
self.enddate = enddate
self.startadresse = startadresse
self.zieladresse = zieladresse
self.priority = priority
}
}
@Model
class Todo {
var name: String
// @Relationship
var projekte: Projekte?
init(name: String, projekte: Projekte) {
self.name = name
self.projekte = projekte
}
}
So speichere ich die Projekte:
let newDaten = Projekte(name: name, info: info, startdate: stardate, enddate: enddate, startadresse: startadresse, zieladresse: zieladresse, priority: priority)
modelContext.insert(newDaten)
newDaten.todos = []
Das ist der TodoAddView:
import SwiftData
struct TodoAddView: View {
@Environment(\.modelContext) private var modelContext
@Environment(\.dismiss) var dismiss
var projekte: Projekte
@State private var name: String = ""
var body: some View {
NavigationView {
Form {
Section(header: Text("Name")) {
TextField("Name eingeben", text: $name)
}
}
.navigationBarTitle("Aufgabe hinzufügen", displayMode: .inline)
.navigationBarItems(leading: Button("Abbrechen"){
dismiss()
}.foregroundStyle(.red), trailing: Button("Fertig") {
// Hier Code zum Speichern der Daten
let newDaten = Todo(name: name, projekte: projekte)
modelContext.insert(newDaten)
newDaten.projekte = projekte
projekte.todos?.append(newDaten)
dismiss()
})
}
}
}
Thanks and a nice Weekend!
ja_hartmann
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
User for
From
Augsburg
Post
Replies
Boosts
Views
Activity
Hello,
I have created a data model with Text Classification which contains many garments with the label clothing, technology equipment with the label technology, etc.... . I have inserted it so that when entering for example "T-shirt" the label clothing is output. But I want it so that when I create an equipment category with the clothing, that it suggests me clothing items, which I add. How do I implement this. In the function you can only use"preditction.label". I program with SwiftUI.
func textml() {
do {
let model = try DataModel_Symbols_Consilia(configuration: .init())
let prediction = try model.prediction(text: addProjectVM.title)
addProjectVM.symbol = prediction.label
} catch {
modelOutput = "Something went wrong"
}
}
Greetings
Janik
I have the problem that when I want to edit the item, the item that was created last is always changed.
// EditSheet.swift
// CoreData_T
//
// Created by Janik Hartmann on 11.01.23.
//
import SwiftUI
import Foundation
import CoreData
struct EditSheet: View {
@Environment(\.managedObjectContext) private var viewContext
@Environment(\.dismiss) private var dismiss
@State private var name: String = ""
private var item: Item
var itemid: UUID
init(itemId: UUID, item: Item) {
self.item = item
self.itemid = item.id!
self.name = item.name ?? ""
}
var body: some View {
VStack{
TextField("Text eingeben", text: $name)
.padding()
Button {
update(item: item, itemid: item.id!)
dismiss()
} label: {
Text("Save")
}.padding()
}.onAppear{
name = item.name!
}
}
func update(item:Item, itemid id: UUID){
let fetchRequest = NSFetchRequest<NSManagedObject>(entityName: "Item")
fetchRequest.predicate = NSPredicate(format: "id = %@", itemid as CVarArg)
do {
let results = try viewContext.fetch(fetchRequest) // Rufe den Fetchrequest auf
let objectToUpdate = results[0] // Nehme das erste
objectToUpdate.setValue(name, forKey: "name") //Editiere den Key "name" zum übergebenen Wert
do {
try viewContext.save() // Speichern
print("Erfolgreich gespeichert!")
} catch let error as NSError {
print("Fehler beim Speichern. \(error), \(error.userInfo)")
}
} catch let error as NSError {
print("Fehler beim Fetchen. \(error), \(error.userInfo)")
}
}
}
I have defined an attribute "id" as UUID in the database. When I want to edit an item, I want it to choose the right item based on the id. But when I edit an item it chooses a random item from the list. I've used a print statement to print the id each time and therefore I've seen that it randomly selects an id and not from the selected item.
import SwiftUI
import CoreData
import Foundation
struct ContentView: View {
@Environment(\.managedObjectContext) private var viewContext
//Abfrage zum Anzeigen
@FetchRequest(sortDescriptors: [NSSortDescriptor(keyPath: \Item.timestamp, ascending: true)],
animation: .default)
//Referenz zum Entity Item
var items: FetchedResults<Item>
@State private var name: String = ""
// Test
@State private var editName = ""
@State private var showEditInput = false
var body: some View {
NavigationView {
VStack{
TextField("Text eingeben", text: $name)
.padding()
Button {
addItem()
} label: {
Text("Save")
}.padding()
List {
ForEach(items, id: \.self) { item in
NavigationLink(destination: ToDo(list:item)) {
HStack {
Text(item.name ?? "Not found")
Button {
self.showEditInput = true
} label: {
Text("Edit")
}.buttonStyle(.bordered)
}.alert("Editieren", isPresented: $showEditInput, actions: {
// Eingabe des neuen Namens
TextField("Neuer Listenname", text: $editName)
Button("Save", action: {
editItem(itemid: item.id!, newName: editName) // Rufe die Edit funktion auf
// self.editName = "" //Resete den Eingabenstring
})
Button("Cancel", role: .cancel, action: {
// self.editName = "" // Resete den Eingabenstring
})
}, message: {
Text("Neuen Namen eingeben")
})
}
}
.onDelete(perform: deleteItems)
}
}
}
}
//MARK: - Hinzufügen der Listen
private func addItem() {
withAnimation {
let newItem = Item(context: viewContext)
newItem.name = name
newItem.id = UUID()
do {
try viewContext.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
private func editItem(itemid id: UUID, newName: String) {
// Fetchrequest um anhand der ID das richtige Item ausfindig zu machen
let fetchRequest = NSFetchRequest<NSManagedObject>(entityName: "Item")
fetchRequest.predicate = NSPredicate(format: "id == %@", id as CVarArg)
do {
let results = try viewContext.fetch(fetchRequest) // Rufe den Fetchrequest auf
let objectToUpdate = results[0] // Nehme das erste
objectToUpdate.setValue(newName, forKey: "name") //Editiere den Key "name" zum übergebenen Wert
print(id)
do {
try viewContext.save() // Speichern
print("Erfolgreich gespeichert!")
} catch let error as NSError {
print("Fehler beim Speichern. \(error), \(error.userInfo)")
}
} catch let error as NSError {
print("Fehler beim Fetchen. \(error), \(error.userInfo)")
}
}
private func deleteItems(offsets: IndexSet) {
withAnimation {
offsets.map { items[$0] }.forEach(viewContext.delete)
do {
try viewContext.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
}
Hello I have the problem that I can not update items that have already been saved with CoreData. I have tried different ways, but each time came several different error messages. In addition, many instructions are very old or use UIKit. I think I always think of the wrong approach. Do you know one or more ways how I can update existing items? I'll send a code along, though I've removed my attempts for now. So maybe you can give me some approaches based on my code.
Thanks in advance!
The ItemView:
import SwiftUI
import Foundation
import CoreData
struct ToDo: View {
@Environment(\.managedObjectContext) private var viewContext
// Referenz zu Entitiy Item
@ObservedObject var list: Item
//Die Todos mit Referenz zum Array vom Entity ToDos
@State var liste: [ToDos]
@State private var showingNewToDo = false
//Die Funktionen der Store-Klasse
var store = Store()
@State private var todo: String = ""
// Konstruktor-Hack, um die Verwendung
// von ToDos als Status zu ermöglichen (damit die
// Liste aktualisiert wird)
init(list: Item){
self.list = list
self.liste = list.liste?.array as! [ToDos]
}
var body: some View {
NavigationView {
List {
//Zeigt jedes ToDo für die Liste
ForEach(liste.sorted(using: SortDescriptor(\ToDos.todo))) { todo in
Text(todo.todo ?? "Not found")
}
.onDelete(perform: deleteItems)
}
}.toolbar {
EditButton()
Button() {
showingNewToDo.toggle()
} label: {
Label("Hinzufügen", systemImage: "plus")
}
}
.sheet(isPresented: $showingNewToDo){
ToDoAddSheet() { todo in
//speichert Änderungen
list.addToListe(todo)
store.save(viewContext: viewContext)
//Fügt ToDos zu Listen hinzu
withAnimation{
liste.append(todo)
}
}
}
}
//Wird hier nicht benötigt, würde aber Daten speichern
private func addItem() {
withAnimation {
let newToDo = ToDos(context: viewContext)
newToDo.id = UUID()
newToDo.todo = todo
do {
try viewContext.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
private func deleteItems(offsets: IndexSet) {
withAnimation {
offsets.map { liste[$0] }.forEach(viewContext.delete)
liste.remove(atOffsets: offsets)
store.save(viewContext: viewContext)
do {
try viewContext.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
}
The AddView:
import SwiftUI
struct ToDoAddSheet: View {
@Environment(\.dismiss) private var dismiss
@Environment(\.managedObjectContext) private var viewContext
var store = Store()
var save: (ToDos) -> ()
@State private var todo: String = ""
var body: some View {
VStack{
TextField("Text eingeben", text: $todo)
.padding()
Button {
add()
dismiss()
} label: {
Text("Save")
}.padding()
}
}
//MARK: - Syntax für neue todos
private func add() {
let newToDo = ToDos(context: viewContext)
newToDo.todo = todo
newToDo.id = UUID()
save(newToDo)
}
}
Hello, I have the problem that I want to create a relationship between a list and its items. I have created relationships and also selected one-to-many for the list. But when I create multiple lists and add an item in the list, this item is added to each list and not only to the one. How can I set that the item is only added to the list that was selected?
Lists code
import SwiftUI
import CoreData
import Foundation
struct ContentView: View {
@Environment(\.managedObjectContext) private var viewContext
@FetchRequest(sortDescriptors: []) var items: FetchedResults<Item>
@State private var name: String = ""
var body: some View {
NavigationView {
VStack{
TextField("Text eingeben", text: $name)
.padding()
Button {
addItem()
} label: {
Text("Save")
}.padding()
List {
ForEach(items, id: \.self) { item in
NavigationLink(destination: ToDo()) {
Text(item.name ?? "Not found")
}
// Text(item.name ?? "Not found")
}
.onDelete(perform: deleteItems)
}
}
}
}
private func addItem() {
withAnimation {
let newItem = Item(context: viewContext)
newItem.name = name
newItem.id = UUID()
do {
try viewContext.save()
} catch {
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
private func deleteItems(offsets: IndexSet) {
withAnimation {
offsets.map { items[$0] }.forEach(viewContext.delete)
do {
try viewContext.save()
} catch {
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView().environment(\.managedObjectContext, PersistenceController.preview.container.viewContext)
}
}
items list
import SwiftUI
import Foundation
import CoreData
struct ToDo: View {
@Environment(\.managedObjectContext) private var viewContext
@FetchRequest(sortDescriptors: []) var todos: FetchedResults<ToDos>
@State private var todo: String = ""
var body: some View {
NavigationView {
VStack{
TextField("Text eingeben", text: $todo)
.padding()
Button {
addItem()
} label: {
Text("Save")
}.padding()
List {
ForEach(todos, id: \.self) { todos in
Text(todos.todo ?? "Not found")
}
.onDelete(perform: deleteItems)
}
}
}
}
private func addItem() {
withAnimation {
let newToDo = ToDos(context: viewContext)
newToDo.todo = todo
newToDo.id = UUID()
do {
try viewContext.save()
} catch {
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
private func deleteItems(offsets: IndexSet) {
withAnimation {
offsets.map { todos[$0] }.forEach(viewContext.delete)
do {
try viewContext.save()
} catch {
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
}
struct ToDo_Previews: PreviewProvider {
static var previews: some View {
ToDo()
}
}
Thank you!
I get these errors every time: 'App' is ambiguous for type lookup in this context
And: Cannot convert value of type 'HomeList.Type' to expected argument type 'ObservedResults'
This is the code:
import UserNotifications
import RealmSwift
@main
struct KamelApp: App {
@UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
// @StateObject private var itemId = ObjectId()
let migrator = Migrator()
var body: some Scene {
WindowGroup {
let _ = UserDefaults.standard.set(false, forKey: "_UIConstraintBasedLayoutLogUnsatisfiable")
let _ = print(FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!.path)
ContentView(homeLists: HomeList, itemId: ObjectId())
}
}
}
The second error comes from Contentview
Hi. I would like to add an if statement to my list that only shows items that are only seven days in the future from the current date, and 30 days in the future. This is how tasks should be sorted. So upcoming tasks in the next 7 days and as an extra list tasks in the next 30 days. But I always get this error ("Operator function '<' requires that 'Date' conform to 'StringProtocol'"), or is there another way to sort the list like this?
List {
Section(header: Text("Test1")){
ForEach(homeLists, id: \.id) { homeList in
if homeList.listdate < Date.now {
NavigationLink {
HomeTabView(homeList: homeList)
} label: {
The content of the list is then written in the label underneath.
I have the problem that I want to add a button with "Toolbaritem". This should be placed as "Add" button on the top right. But unfortunately this button is not displayed.
import SwiftUI
import RealmSwift
struct HomeListItems: View {
@ObservedRealmObject var homeList: HomeList
@State private var isPresented: Bool = false
@State private var selectedItemIds: [ObjectId] = []
var body: some View {
VStack {
if homeList.items.isEmpty {
Text("Keine ToDo's gefunden")
}
List {
ForEach(homeList.items) { item in
NavigationLink {
AddToDoItems(homeList: homeList, itemToEdit: item)
} label: {
ItemCell(item: item, selected:
selectedItemIds.contains(item.id)) { selected in
if selected {
selectedItemIds.append(item.id)
if let indexToDelete = homeList.items.firstIndex(where: {
$0.id == item.id }) {
// delete the item
$homeList.items.remove(at: indexToDelete)
}
}
}
}
}
}
.navigationTitle(homeList.title)
}.toolbar{
Button {
//action
isPresented = true
} label: {
Image(systemName: "plus")
}}
.sheet(isPresented: $isPresented) {
AddToDoItems(homeList: homeList)
}
}
}
struct HomeListItems_Previews: PreviewProvider {
static var previews: some View {
HomeListItems(homeList: HomeList())
}
}
Hello, I have the problem that I have an image slider user and this makes the RAM consumption very high. Is there a way that the images are automatically scaled down to still look sharp on the device in question? I don't want to scale down every single image myself and am looking at a way a code would automatically make that fit for me.
Thanks a lot!
Hello,
I have the problem that a navigation view with a shape has a high distance to the top (see picture). How can I reduce this so that it looks "normal".
The Code looks like this:
struct EinstellungsView: View {
@ObservedObject var userSettings = UserSettings()
@State var darkMode = false;
var body: some View {
NavigationView {
Form {
Section(header: Text("PROFILE")) {
TextField("Anzeigename", text: $userSettings.username)
Toggle(isOn: $darkMode) {
Text("Darkmode")
}
}
Section(header: Text("Währungen")){
Picker(selection: $userSettings.currencyBase, label: Text("Währungsbasis")){
ForEach(userSettings.currencyOptions, id: \.self) { währungen in
Text(währungen)
}
}
Toggle(isOn: $userSettings.currencyFormat) {
Text("Alt. Währungsformatierung")
}
}
}
.navigationBarTitle("Settings")
}
}
}
Hello. wants to display images in a TabView. The names of the images are stored in an array, because there is more than one image. But in the final preview only a gray field is visible. What do I have to do so that the images are displayed?
The ImageSlider
import SwiftUI
struct ImageSlider: View {
//var numberOfImages = 4
let countryItem : CountryItem
var body: some View {
GeometryReader { proxy in
TabView{
ForEach(0..<4) { num in
Image("\(countryItem.image)")
.resizable()
.scaledToFill()
.overlay(Color.black.opacity(0.1))
.tag(num)
}
}.tabViewStyle(PageTabViewStyle())
.clipShape(RoundedRectangle(cornerRadius: 5))
.padding()
.frame(width: proxy.size.width, height: proxy.size.width / 1.5 )
}}
}
The Array with the datas. The images named 0,1,2,3 and 4,5,6,7
import Foundation
// Bitte Ab sofott hier neue Länder einfügen!
class CountryItemHolder: ObservableObject{
public let countryList: [CountryItem] = [
CountryItem(
country_flag: "🇪🇬",
name: "Ägypten",
description: "Ägypten ist ein Land, das Nordostafrika mit dem Nahen Osten verbindet und bis in die Zeit der Pharaonen zurückreicht. Zu den jahrtausendealten Baudenkmälern im fruchtbaren Niltal zählen die kolossalen Pyramiden und die Große Sphinx von Gizeh sowie die hieroglyphenbedeckten Wände des Karnak-Tempels und die Gräber im Tal der Könige bei Luxor.",
hauptstadt: "Kairo",
währung: "Ägyptisches Pfund",
währungskürzel: "egp",
einwohnerzahl: "102,3 Millionen",
nicetoknow:"In den meisten touristischen Orten werden Kreditkarten als Zahlungsmittel akzeptiert. Zudem gibt es mehrere Bankautomaten. Das Telefonnetz ist gut ausgebaut. Das Äygptische Stromnetz läuft mit 220V und es wird üblicherweiße der Eurostecker verwendet.",
image: [0,1,2,3]),
CountryItem(
country_flag: "🇦🇹",
name: "Österreich",
description: "Österreich ist ein mitteleuropäischer Binnenstaat. Mehr als 62 Prozent seiner Staatsfläche werden von alpinem Hochgebirge gebildet. Der österreichische Staat wird deshalb auch als Alpenrepublik bezeichnet.",
hauptstadt: "Wien",
währung: "Euro",
währungskürzel: "eur",
einwohnerzahl: "8,917 Millionen",
nicetoknow:"Österreich ist ein EU-Mitgliedsstaat. Österreich verlangt Mautgebühren für ihre Autobahnen.",
image:[4,5,6,7]),
]
}
Hi. I have created a "struct" with items and given in an array to each item the content. I want to provide some info for each country. That's why in the "struct" are items like name, capital or image. I wanted to make a slider with images and so I tried to make another array in the array at image. Then I get this error message. I hope you can help me.
Die struct mit den items:
import Foundation
struct CountryItem: Identifiable {
let id = UUID()
let country_flag: String
let name: String
let description: String
let hauptstadt: String
let währung: String
let währungskürzel: String
let einwohnerzahl: String
let nicetoknow: String
let image: Int
Das Array:
import Foundation
// Bitte Ab sofott hier neue Länder einfügen!
class CountryItemHolder: ObservableObject{
public let countryList: [CountryItem] = [
CountryItem(
country_flag: "🇪🇬",
name: "Ägypten",
description: "Ägypten ist ein Land, das Nordostafrika mit dem Nahen Osten verbindet und bis in die Zeit der Pharaonen zurückreicht. Zu den jahrtausendealten Baudenkmälern im fruchtbaren Niltal zählen die kolossalen Pyramiden und die Große Sphinx von Gizeh sowie die hieroglyphenbedeckten Wände des Karnak-Tempels und die Gräber im Tal der Könige bei Luxor.",
hauptstadt: "Kairo",
währung: "Ägyptisches Pfund",
währungskürzel: "egp",
einwohnerzahl: "102,3 Millionen",
nicetoknow:"In den meisten touristischen Orten werden Kreditkarten als Zahlungsmittel akzeptiert. Zudem gibt es mehrere Bankautomaten. Das Telefonnetz ist gut ausgebaut. Das Äygptische Stromnetz läuft mit 220V und es wird üblicherweiße der Eurostecker verwendet.",
image: [0,1,2,3]),
CountryItem(
country_flag: "🇦🇹",
name: "Österreich",
description: "Österreich ist ein mitteleuropäischer Binnenstaat. Mehr als 62 Prozent seiner Staatsfläche werden von alpinem Hochgebirge gebildet. Der österreichische Staat wird deshalb auch als Alpenrepublik bezeichnet.",
hauptstadt: "Wien",
währung: "Euro",
währungskürzel: "eur",
einwohnerzahl: "8,917 Millionen",
nicetoknow:"Österreich ist ein EU-Mitgliedsstaat. Österreich verlangt Mautgebühren für ihre Autobahnen.",
image:[4,5,6,7]),
CountryItem(
country_flag: "🇦🇺",
name: "Australien",
description: "Australien ist ein Land und Kontinent zwischen dem Indischen und dem Pazifischen Ozean. Seine größten Städte – Sydney, Brisbane, Melbourne, Perth, Adelaide – liegen an den Küsten, aber die Hauptstadt Canberra befindet sich im Landesinneren. Bekannte Wahrzeichen des Landes sind die Oper von Sydney, das Great Barrier Reef, das Outback genannte, wüstenartige Inland sowie einzigartige Tierarten wie Kängurus und Schnabeltiere.",
hauptstadt: "Canberra",
währung: "Australischer Dollar",
währungskürzel: "aud",
einwohnerzahl: "25,69 Millionen",
nicetoknow:"",
image:[4,5,6,7]),
CountryItem(
country_flag: "🇩🇪",
name: "Deutschland",
description: "Deutschland ist ein Bundesstaat in Mitteleuropa. Er hat 16 Bundesländer.Die bevölkerungsreichste deutsche Stadt ist Berlin; weitere Metropolen mit mehr als einer Million Einwohnern sind Hamburg, München und Köln; der größte Ballungsraum ist das Ruhrgebiet. Frankfurt am Main ist als europäisches Finanzzentrum von globaler Bedeutung.",
hauptstadt: "Berlin",
währung: "Euro",
währungskürzel: "eur",
einwohnerzahl: "83,24 Millionen",
nicetoknow:"",
image:[4,5,6,7]),
CountryItem(
country_flag: "🏴",
name: "England",
description: "England ist Teil der Britischen Inseln und grenzt an Schottland und Wales. Die Landeshauptstadt London liegt an der Themse. Sie ist Sitz des Parlaments und beherbergt Big Ben und den Tower of London aus dem 11. Jh. Die Metropole ist auch ein wichtiges Kunst- und Geschäftszentrum. Weitere Großstädte sind Manchester, Birmingham, Liverpool, und die Universitätszentren Oxford und Cambridge.",
hauptstadt: "London",
währung: "Britische Pfund",
währungskürzel: "gbp",
einwohnerzahl: "55,98 Millionen",
nicetoknow:"",
image:[4,5,6,7]),
CountryItem(
country_flag: "🇫🇷",
name: "Frankreich",
description: "Frankreich im Westen Europas ist ein Land mit mittelalterlichen Städten, Bergdörfern und Mittelmeerstränden. Die Hauptstadt Paris gilt als erstrangiges Mode- und Kulturzentrum. Hier befinden sich Wahrzeichen wie der Eiffelturm. Uralte Malereien in der Höhle von Lascaux sind Zeugnisse der reichen französischen Geschichte, ebenso wie das römische Theater in Lyon oder das prunkvolle Schloss Versailles",
hauptstadt: "Paris",
währung: "Euro",
währungskürzel: "eur",
einwohnerzahl: "67,39 Millionen",
nicetoknow:"",
image:[4,5,6,7]),
]
}
For "image: [0,1,2,3])," this error message occurs. I have named the images like this.
error message: Cannot convert value of type '[Int]' to expected argument type 'Int'
Hi. I want to make a planner app that has the date and location of the project. Only I have a problem. I used a "DatePicker" so that the date is counted. Only I do not know how to save and display the selected date.
In general I have problems to save and reload the content of the variables and texfielders etc. I thought that these contents are automatically saved on the end device of the user.
I have read that there are methods like "UserDefaults", "CoreData" or "AppStorage". Have been reading stuff about this forever. But I can't get this to work. I hope someone would like to donate their time to help.
Greetings
Janik