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How To Show A SwiftUI Onboarding Screen Only When To App Launches For The First Time
I want to use onboarding screen in my project, and it is work but I want to use it just once time for app, I do not know how I will do it, is there any way? struct ContentView: View {   @State private var onboardinDone = false   var data = OnboardingData.data       var body: some View {     Group {       if !onboardinDone {         OnboardingView(data: data, doneFunction: {                              print("done onboarding")         })       } else {         MainScreen()       }     }   }        } struct ContentView_Previews: PreviewProvider {   static var previews: some View {     ContentView()   } }
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2k
Sep ’23
why it is throw an error as a Value of type 'ContentView' has no member 'restaurants' in SwiftUI?
I have example of swiftUI project, and it is throw an error as a "Value of type 'ContentView' has no member 'restaurants'" for    self.restaurants.remove(atOffsets: indexSet) } line of code, I do not know what I missed, any idea? import SwiftUI struct ContentView: View {          @State private var selectedRestaurant: Restaurant?       var body: some View {     List {       ForEach(restaurants) { restaurant in         BasicImageRow(restaurant: restaurant)           .contextMenu {                           Button(action: {               // mark the selected restaurant as check-in               self.checkIn(item: restaurant)             }) {               HStack {                 Text("Check-in")                 Image(systemName: "checkmark.seal.fill")               }             }                           Button(action: {               // delete the selected restaurant               self.delete(item: restaurant)             }) {               HStack {                 Text("Delete")                 Image(systemName: "trash")               }             }                           Button(action: {               // mark the selected restaurant as favorite               self.setFavorite(item: restaurant)             }) {               HStack {                 Text("Favorite")                 Image(systemName: "star")               }             }           }           .onTapGesture {             self.selectedRestaurant = restaurant           }           .actionSheet(item: self.$selectedRestaurant) { restaurant in                           ActionSheet(title: Text("What do you want to do"), message: nil, buttons: [                               .default(Text("Mark as Favorite"), action: {                 self.setFavorite(item: restaurant)               }),                               .destructive(Text("Delete"), action: {                 self.delete(item: restaurant)               }),                               .cancel()             ])           }       }       .onDelete { (indexSet) in         self.restaurants.remove(atOffsets: indexSet)       }     }   }       private func delete(item restaurant: Restaurant) {     if let index = self.restaurants.firstIndex(where: { $0.id == restaurant.id }) {       self.restaurants.remove(at: index)     }   }       private func setFavorite(item restaurant: Restaurant) {     if let index = self.restaurants.firstIndex(where: { $0.id == restaurant.id }) {       self.restaurants[index].isFavorite.toggle()     }   }       private func checkIn(item restaurant: Restaurant) {     if let index = self.restaurants.firstIndex(where: { $0.id == restaurant.id }) {       self.restaurants[index].isCheckIn.toggle()     }   } } struct ContentView_Previews: PreviewProvider {   static var previews: some View {     ContentView()   } } struct BasicImageRow: View {   var restaurant: Restaurant       var body: some View {     HStack {       Image(restaurant.image)         .resizable()         .frame(width: 40, height: 40)         .cornerRadius(5)       Text(restaurant.name)               if restaurant.isCheckIn {         Image(systemName: "checkmark.seal.fill")           .foregroundColor(.red)       }               if restaurant.isFavorite {         Spacer()                   Image(systemName: "star.fill")           .foregroundColor(.yellow)       }     }   } } model: struct Restaurant: Identifiable {   var id = UUID()   var name: String   var image: String   var isFavorite: Bool = false   var isCheckIn: Bool = false } var restaurants = [ Restaurant(name: "Cafe Deadend", image: "cafedeadend"),        Restaurant(name: "Homei", image: "homei"),        Restaurant(name: "Teakha", image: "teakha"),        Restaurant(name: "Cafe Loisl", image: "cafeloisl"), ]
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1.8k
Feb ’22
Why list items not able to delete in SwiftUI?
I have a simple app in SwiftUI, and I try to delete list items in app , project is working, but still list items not able to delete, I do not know what I did not put in my codes, any idea will be appreciated. struct MyView: View { @State private var selectedUsers: MyModel? var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data } } .onDelete { (indexSet) in selectedUsers.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }} model: struct MyModel: Identifiable, Hashable, Codable { var id = UUID().uuidString var name: String } var datas = [ MyModel(name: "david"), MyModel(name: "marry"), ]
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2.1k
Feb ’22
How we can delete all list items in SwiftUI?
I have a simple app in SwiftUI, and I try to delete all list items with context menu , when I click context menu button, I want to remove all items, is it possible? struct MyView: View { @State private var selectedUsers: MyModel? var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data } } .onDelete { (indexSet) in selectedUsers.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }} model: struct MyModel: Identifiable, Hashable, Codable { var id = UUID().uuidString var name: String } var datas = [ MyModel(name: "david"), MyModel(name: "marry"), ]
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1.8k
Feb ’22
How we can use alert menu before delete list items in SwiftUI?
I have list items in SwiftUI, and when I delete list items I want to delete after alert menu, like "do want to delete your list items, ""yes" or "no" is it possible? struct MyView: View { @State private var selectedUsers: MyModel? var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data } } .onDelete { (indexSet) in self.datas.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }}
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2.5k
Jan ’23
How we can use alert menu before delete list items in SwiftUI?
I have list items in SwiftUI, and when I delete list items, but when I click the delete button, it delete item randomly, I want to delete seleted item, where is the mistake? struct MyView: View { @State private var selectedUsers: MyModel?   @State var datas: [MyModel]    @State private var confirmDelete = false var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data }   .confirmationDialog( "Are you sure ?",                   isPresented: $confirmDelete,                   titleVisibility: .visible                 ){                                       Button(role: .destructive) {                     self.delete(item: data)                   } label: {                     Text("ok")                                         }                   Button(role: .cancel) {                                         } label: {                     Text("cancel")                                         }                 }             } .onDelete { (indexSet) in self.datas.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }}
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1.1k
Feb ’22
Why SwiftUI `confirmationDialog` delete the wrong item?
I am trying to use confirmationDialog to delete an item in a List. But what happens is that the wrong item gets deleted. Why? Here is my code: struct MyView: View { @State private var selectedUsers: MyModel?   @State var datas: [MyModel]    @State private var confirmDelete = false var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data }   .alert(isPresented: $confirmDelete) {               Alert(title: Text("title"),                 message: Text("message"),                 primaryButton: .destructive(Text("Delete")) {                                 self.delete(item: data)                                   },                 secondaryButton: .cancel())             }                               } .onDelete { (indexSet) in self.datas.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }}
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1
1k
Oct ’22
Why it throw ab error as a "Cannot find 'state' in scope" in SwiftUI project?
I have small SwiftUI app, and it throw an error like "Cannot find 'state' in scope" for this line  Register(state: state) I guess it must be like that, but it is throw an error, I do not know what I missed? Any idea? struct Register: View {       @ObservedObject private var viewModel: RegisterViewModel        init(state: AppState) {    self.viewModel =RegisterViewModel(authAPI: AuthService(), state: state)    }       var body: some View { } } struct Register_Previews: PreviewProvider {       @ObservedObject private var viewModel: RegisterViewModel   @State var pushActive = false        init(state: AppState) {    self.viewModel = RegisterViewModel(authAPI: AuthService(), state: state)    }       static var previews: some View {     Register(state: state)   } } class RegisterViewModel: ObservableObject {     @Published var state: AppState       init(authAPI: AuthAPI, state: AppState) {     self.authAPI = authAPI     self.state = state   }     } }
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985
Mar ’22
why it say "Extra arguments at positions #3 , #4 in call" in SwiftUI?
I have small problem in my project, it throw an error as a Extra arguments at positions #3, #4 for  Auth.auth().signIn() line, I do not know what I missed? func login(email: String, password: String, name: String, surname: String) -> Future<User?, Never> { return Future<User?, Never> { promise in Auth.auth().signIn(withEmail: email, password: password, name: name, surname: surname) {(authResult, _) in guard let id = authResult?.user.providerID, let email = authResult?.user.email else { promise(.success(nil)) return } let user = User(id: id, email: email, name:name, surname:surname) promise(.success(user)) } } } model: import Foundation struct User { let id: String let email: String let name: String let surname: String }
1
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828
Mar ’22
when click list item, open new SwiftUI for every list items in SwiftUI
I have a simple SwiftUI project, when I click the any list items, I want to route different SwiftUI. Below, I used arrays, and for every SwiftUI, I want to use [0], [1],..., but it throw error, I do not know why? Any idea? ContentView: import SwiftUI struct ContentView: View {   var body: some View {     NavigationView {       List(contacts) { contact in         NavigationLink(destination: NumberOneView(contact: contact)) {           ContactRow(contact: contact)         }       }       .navigationBarTitle("Contacts")     }     .environment(\.colorScheme, .light)   } } struct ContentView_Previews: PreviewProvider {   static var previews: some View {     ContentView()   } } struct ContactRow: View {       let contact: Settings       var body: some View {     HStack {       Image(contact.imageName)         .resizable()         .aspectRatio(contentMode: .fill)         .frame(width: 20, height: 20)                          VStack(alignment: .leading) {         Text(contact.name)           .font(.system(size: 21, weight: .medium, design: .default))                }     }   } } Settings.swift: import Foundation import SwiftUI struct Settings: Identifiable { let imageName: String let name: String let id = UUID() } let contacts = [ Settings(imageName: "image1", name: "NumberOne"), Settings(imageName: "image2", name: "NumberTwo"), Settings(imageName: "image3", name: "NumberThree"), Settings(imageName: "image4", name: "NumberFour"), ] NumberOneView: import SwiftUI struct NumberOneView: View { let contact: Settings var body: some View { Text("hey") } } struct NumberOneView_Previews: PreviewProvider { static var previews: some View { NumberOneView(contact: contacts[0]) } } NumberTwoView: import SwiftUI struct NumberTwoView: View { let contact: Settings var body: some View { Text("hey") } } struct NumberTwoView_Previews: PreviewProvider { static var previews: some View { NumberTwoView(contact: contacts[1]) } }
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4.2k
Mar ’21
Why I am not success to pass data from one view to another view for many data in SwiftUI?
I ask this question before, it was answered but it is not work for many data, like when I click the any list items, all details pass name of "david", I want to pass data of user which I clicked, where I missed here? struct ImageModel: Identifiable, Hashable {   var id = UUID().uuidString   var name: String   } var datas = [       ImageModel(name: "davis"),  ImageModel(name: "carry"),   ImageModel(name: "maria"), ] struct ImageRowView: View {   var data: ImageModel   var body: some View {            NavigationLink(destination: ImageDetailsView(data: ImageModel)){                       HStack{} }}} struct ImageDetailsView: View {      var body: some View {          ImageDetails(data:  ImageModel(name: "davis"))   } } struct ImageDetailsView_Previews: PreviewProvider {   static var previews: some View {           ImageDetailsView()         } } struct ImageDetails : View {      var data: ImageModel   var body: some View{   VStack{             Text(data.name)                      } }
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494
Feb ’22
How can I use multiple `.alert` dialog in SwiftUI?
I have multiple alert dialog in project, just one of them is work, but I am still do not know why I am not use second one, so how we can use multiple .alert dialog in SwiftUI? struct MyView: View { @State private var selectedUsers: MyModel?   @State var datas: [MyModel]    @State private var deleteRow = false   @State private var deleteRows = false var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: {     deleteRow = true }) { Text("delete") } Button(action: {    deleteRows = true }) { Text("delete") } } .onTapGesture { selectedUsers = data }   .alert(isPresented: $deleteRow) {               Alert(title: Text("title"),                 message: Text("message"),                 primaryButton: .destructive(Text("Delete")) {                                 self.delete(item: data)                                   },                 secondaryButton: .cancel())             }   .alert(isPresented: $deleteRows) {               Alert(title: Text("title"),                 message: Text("message"),                 primaryButton: .destructive(Text("Delete")) {                    self.datas.removeAll()                 },                 secondaryButton: .cancel())             }                               } .onDelete { (indexSet) in self.datas.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }}
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2.2k
Mar ’22
Why it is throw an error as "Return from initializer without initializing all stored properties" in SwiftUI?
I have simple app in SwiftUI, when I use  @Binding var show : Bool for second register screen, it is throw an error for this line of code   init(state: AppState) {             self.viewModel = RegisterViewModel(authAPI: AuthService(), state: state)           } as a "Return from initializer without initializing all stored properties" any idea? first screen: import SwiftUI struct RegisterFirstScreen: View {   @Binding var show : Bool   init(state: AppState) {             self.viewModel = RegisterViewModel(authAPI: AuthService(), state: state)     }   var body: some View {    NavigationLink(destination: RegisterSecondScreen(state: viewModel.state, show: $show),                            isActive: self.$pushActive) {                 Button {                              viewModel.signUp()                                     } label: {                   Text("Register Now")                     .padding()                    }               } } second screen: struct RegisterSecondScreen: View {   @ObservedObject var state: AppState       @Binding var show : Bool   var body: some View { Text("Next main screen") }}
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2.8k
Mar ’22
why it throw an error as "'animation' was deprecated in iOS 15.0: Use withAnimation or animation(_:value:) instead"in SwiftUI 3.0?
I have a project, after update it to swiftUI 3.0, it is throw an error for    .animation(.spring()) as animation' was deprecated in iOS 15.0: Use withAnimation or animation(_:value:) instead, any idea?  @Binding var display: Bool   private var background: some View {   Color.black    .fillParent()    .opacity(0.6)    .animation(.spring())  }
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720
Feb ’22
Why I am not success to pass data from one view to another view in SwiftUI?
I have a problem when try to pass data from one view to another view, it is throw an error for   ImageDetails() as a "Missing argument for parameter 'data' in call" I do not know what I missed? struct ImageModel: Identifiable, Hashable {   var id = UUID().uuidString   var name: String   } var datas = [       ImageModel(name: "davis"), ] struct ImageRowView: View {   var data: ImageModel   var body: some View {            NavigationLink(destination: ImageDetailsView(data: ImageModel)){                       HStack{} }}} struct ImageDetailsView: View {      var body: some View {           ImageDetails()   } } struct ImageDetailsView_Previews: PreviewProvider {   static var previews: some View {           ImageDetailsView()         } } struct ImageDetails : View {      var data: ImageModel   var body: some View{   VStack{             Text(data.name)                      } }
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450
Feb ’22
How To Show A SwiftUI Onboarding Screen Only When To App Launches For The First Time
I want to use onboarding screen in my project, and it is work but I want to use it just once time for app, I do not know how I will do it, is there any way? struct ContentView: View {   @State private var onboardinDone = false   var data = OnboardingData.data       var body: some View {     Group {       if !onboardinDone {         OnboardingView(data: data, doneFunction: {                              print("done onboarding")         })       } else {         MainScreen()       }     }   }        } struct ContentView_Previews: PreviewProvider {   static var previews: some View {     ContentView()   } }
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Sep ’23
why it is throw an error as a Value of type 'ContentView' has no member 'restaurants' in SwiftUI?
I have example of swiftUI project, and it is throw an error as a "Value of type 'ContentView' has no member 'restaurants'" for    self.restaurants.remove(atOffsets: indexSet) } line of code, I do not know what I missed, any idea? import SwiftUI struct ContentView: View {          @State private var selectedRestaurant: Restaurant?       var body: some View {     List {       ForEach(restaurants) { restaurant in         BasicImageRow(restaurant: restaurant)           .contextMenu {                           Button(action: {               // mark the selected restaurant as check-in               self.checkIn(item: restaurant)             }) {               HStack {                 Text("Check-in")                 Image(systemName: "checkmark.seal.fill")               }             }                           Button(action: {               // delete the selected restaurant               self.delete(item: restaurant)             }) {               HStack {                 Text("Delete")                 Image(systemName: "trash")               }             }                           Button(action: {               // mark the selected restaurant as favorite               self.setFavorite(item: restaurant)             }) {               HStack {                 Text("Favorite")                 Image(systemName: "star")               }             }           }           .onTapGesture {             self.selectedRestaurant = restaurant           }           .actionSheet(item: self.$selectedRestaurant) { restaurant in                           ActionSheet(title: Text("What do you want to do"), message: nil, buttons: [                               .default(Text("Mark as Favorite"), action: {                 self.setFavorite(item: restaurant)               }),                               .destructive(Text("Delete"), action: {                 self.delete(item: restaurant)               }),                               .cancel()             ])           }       }       .onDelete { (indexSet) in         self.restaurants.remove(atOffsets: indexSet)       }     }   }       private func delete(item restaurant: Restaurant) {     if let index = self.restaurants.firstIndex(where: { $0.id == restaurant.id }) {       self.restaurants.remove(at: index)     }   }       private func setFavorite(item restaurant: Restaurant) {     if let index = self.restaurants.firstIndex(where: { $0.id == restaurant.id }) {       self.restaurants[index].isFavorite.toggle()     }   }       private func checkIn(item restaurant: Restaurant) {     if let index = self.restaurants.firstIndex(where: { $0.id == restaurant.id }) {       self.restaurants[index].isCheckIn.toggle()     }   } } struct ContentView_Previews: PreviewProvider {   static var previews: some View {     ContentView()   } } struct BasicImageRow: View {   var restaurant: Restaurant       var body: some View {     HStack {       Image(restaurant.image)         .resizable()         .frame(width: 40, height: 40)         .cornerRadius(5)       Text(restaurant.name)               if restaurant.isCheckIn {         Image(systemName: "checkmark.seal.fill")           .foregroundColor(.red)       }               if restaurant.isFavorite {         Spacer()                   Image(systemName: "star.fill")           .foregroundColor(.yellow)       }     }   } } model: struct Restaurant: Identifiable {   var id = UUID()   var name: String   var image: String   var isFavorite: Bool = false   var isCheckIn: Bool = false } var restaurants = [ Restaurant(name: "Cafe Deadend", image: "cafedeadend"),        Restaurant(name: "Homei", image: "homei"),        Restaurant(name: "Teakha", image: "teakha"),        Restaurant(name: "Cafe Loisl", image: "cafeloisl"), ]
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1.8k
Activity
Feb ’22
Why list items not able to delete in SwiftUI?
I have a simple app in SwiftUI, and I try to delete list items in app , project is working, but still list items not able to delete, I do not know what I did not put in my codes, any idea will be appreciated. struct MyView: View { @State private var selectedUsers: MyModel? var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data } } .onDelete { (indexSet) in selectedUsers.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }} model: struct MyModel: Identifiable, Hashable, Codable { var id = UUID().uuidString var name: String } var datas = [ MyModel(name: "david"), MyModel(name: "marry"), ]
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3
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2.1k
Activity
Feb ’22
How we can delete all list items in SwiftUI?
I have a simple app in SwiftUI, and I try to delete all list items with context menu , when I click context menu button, I want to remove all items, is it possible? struct MyView: View { @State private var selectedUsers: MyModel? var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data } } .onDelete { (indexSet) in selectedUsers.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }} model: struct MyModel: Identifiable, Hashable, Codable { var id = UUID().uuidString var name: String } var datas = [ MyModel(name: "david"), MyModel(name: "marry"), ]
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1.8k
Activity
Feb ’22
How we can use alert menu before delete list items in SwiftUI?
I have list items in SwiftUI, and when I delete list items I want to delete after alert menu, like "do want to delete your list items, ""yes" or "no" is it possible? struct MyView: View { @State private var selectedUsers: MyModel? var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data } } .onDelete { (indexSet) in self.datas.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }}
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Jan ’23
How we can use alert menu before delete list items in SwiftUI?
I have list items in SwiftUI, and when I delete list items, but when I click the delete button, it delete item randomly, I want to delete seleted item, where is the mistake? struct MyView: View { @State private var selectedUsers: MyModel?   @State var datas: [MyModel]    @State private var confirmDelete = false var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data }   .confirmationDialog( "Are you sure ?",                   isPresented: $confirmDelete,                   titleVisibility: .visible                 ){                                       Button(role: .destructive) {                     self.delete(item: data)                   } label: {                     Text("ok")                                         }                   Button(role: .cancel) {                                         } label: {                     Text("cancel")                                         }                 }             } .onDelete { (indexSet) in self.datas.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }}
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1.1k
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Feb ’22
Why SwiftUI `confirmationDialog` delete the wrong item?
I am trying to use confirmationDialog to delete an item in a List. But what happens is that the wrong item gets deleted. Why? Here is my code: struct MyView: View { @State private var selectedUsers: MyModel?   @State var datas: [MyModel]    @State private var confirmDelete = false var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: { self.delete(item: data) }) { Text("delete") } } .onTapGesture { selectedUsers = data }   .alert(isPresented: $confirmDelete) {               Alert(title: Text("title"),                 message: Text("message"),                 primaryButton: .destructive(Text("Delete")) {                                 self.delete(item: data)                                   },                 secondaryButton: .cancel())             }                               } .onDelete { (indexSet) in self.datas.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }}
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1k
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Oct ’22
Why it throw ab error as a "Cannot find 'state' in scope" in SwiftUI project?
I have small SwiftUI app, and it throw an error like "Cannot find 'state' in scope" for this line  Register(state: state) I guess it must be like that, but it is throw an error, I do not know what I missed? Any idea? struct Register: View {       @ObservedObject private var viewModel: RegisterViewModel        init(state: AppState) {    self.viewModel =RegisterViewModel(authAPI: AuthService(), state: state)    }       var body: some View { } } struct Register_Previews: PreviewProvider {       @ObservedObject private var viewModel: RegisterViewModel   @State var pushActive = false        init(state: AppState) {    self.viewModel = RegisterViewModel(authAPI: AuthService(), state: state)    }       static var previews: some View {     Register(state: state)   } } class RegisterViewModel: ObservableObject {     @Published var state: AppState       init(authAPI: AuthAPI, state: AppState) {     self.authAPI = authAPI     self.state = state   }     } }
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985
Activity
Mar ’22
why it say "Extra arguments at positions #3 , #4 in call" in SwiftUI?
I have small problem in my project, it throw an error as a Extra arguments at positions #3, #4 for  Auth.auth().signIn() line, I do not know what I missed? func login(email: String, password: String, name: String, surname: String) -> Future<User?, Never> { return Future<User?, Never> { promise in Auth.auth().signIn(withEmail: email, password: password, name: name, surname: surname) {(authResult, _) in guard let id = authResult?.user.providerID, let email = authResult?.user.email else { promise(.success(nil)) return } let user = User(id: id, email: email, name:name, surname:surname) promise(.success(user)) } } } model: import Foundation struct User { let id: String let email: String let name: String let surname: String }
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828
Activity
Mar ’22
when click list item, open new SwiftUI for every list items in SwiftUI
I have a simple SwiftUI project, when I click the any list items, I want to route different SwiftUI. Below, I used arrays, and for every SwiftUI, I want to use [0], [1],..., but it throw error, I do not know why? Any idea? ContentView: import SwiftUI struct ContentView: View {   var body: some View {     NavigationView {       List(contacts) { contact in         NavigationLink(destination: NumberOneView(contact: contact)) {           ContactRow(contact: contact)         }       }       .navigationBarTitle("Contacts")     }     .environment(\.colorScheme, .light)   } } struct ContentView_Previews: PreviewProvider {   static var previews: some View {     ContentView()   } } struct ContactRow: View {       let contact: Settings       var body: some View {     HStack {       Image(contact.imageName)         .resizable()         .aspectRatio(contentMode: .fill)         .frame(width: 20, height: 20)                          VStack(alignment: .leading) {         Text(contact.name)           .font(.system(size: 21, weight: .medium, design: .default))                }     }   } } Settings.swift: import Foundation import SwiftUI struct Settings: Identifiable { let imageName: String let name: String let id = UUID() } let contacts = [ Settings(imageName: "image1", name: "NumberOne"), Settings(imageName: "image2", name: "NumberTwo"), Settings(imageName: "image3", name: "NumberThree"), Settings(imageName: "image4", name: "NumberFour"), ] NumberOneView: import SwiftUI struct NumberOneView: View { let contact: Settings var body: some View { Text("hey") } } struct NumberOneView_Previews: PreviewProvider { static var previews: some View { NumberOneView(contact: contacts[0]) } } NumberTwoView: import SwiftUI struct NumberTwoView: View { let contact: Settings var body: some View { Text("hey") } } struct NumberTwoView_Previews: PreviewProvider { static var previews: some View { NumberTwoView(contact: contacts[1]) } }
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4.2k
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Mar ’21
Why I am not success to pass data from one view to another view for many data in SwiftUI?
I ask this question before, it was answered but it is not work for many data, like when I click the any list items, all details pass name of "david", I want to pass data of user which I clicked, where I missed here? struct ImageModel: Identifiable, Hashable {   var id = UUID().uuidString   var name: String   } var datas = [       ImageModel(name: "davis"),  ImageModel(name: "carry"),   ImageModel(name: "maria"), ] struct ImageRowView: View {   var data: ImageModel   var body: some View {            NavigationLink(destination: ImageDetailsView(data: ImageModel)){                       HStack{} }}} struct ImageDetailsView: View {      var body: some View {          ImageDetails(data:  ImageModel(name: "davis"))   } } struct ImageDetailsView_Previews: PreviewProvider {   static var previews: some View {           ImageDetailsView()         } } struct ImageDetails : View {      var data: ImageModel   var body: some View{   VStack{             Text(data.name)                      } }
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494
Activity
Feb ’22
How can I use multiple `.alert` dialog in SwiftUI?
I have multiple alert dialog in project, just one of them is work, but I am still do not know why I am not use second one, so how we can use multiple .alert dialog in SwiftUI? struct MyView: View { @State private var selectedUsers: MyModel?   @State var datas: [MyModel]    @State private var deleteRow = false   @State private var deleteRows = false var body: some View { ScrollView(.vertical, showsIndicators: false, content: { VStack(content: { ForEach(datas){ data in MyRowView(data: data) .contextMenu { Button(action: {     deleteRow = true }) { Text("delete") } Button(action: {    deleteRows = true }) { Text("delete") } } .onTapGesture { selectedUsers = data }   .alert(isPresented: $deleteRow) {               Alert(title: Text("title"),                 message: Text("message"),                 primaryButton: .destructive(Text("Delete")) {                                 self.delete(item: data)                                   },                 secondaryButton: .cancel())             }   .alert(isPresented: $deleteRows) {               Alert(title: Text("title"),                 message: Text("message"),                 primaryButton: .destructive(Text("Delete")) {                    self.datas.removeAll()                 },                 secondaryButton: .cancel())             }                               } .onDelete { (indexSet) in self.datas.remove(atOffsets: indexSet) }}) })} private func delete(item data: MyModel) { if let index = datas.firstIndex(where: { $0.id == data.id }) { datas.remove(at: index) } }}
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2.2k
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Mar ’22
Why it is throw an error as "Return from initializer without initializing all stored properties" in SwiftUI?
I have simple app in SwiftUI, when I use  @Binding var show : Bool for second register screen, it is throw an error for this line of code   init(state: AppState) {             self.viewModel = RegisterViewModel(authAPI: AuthService(), state: state)           } as a "Return from initializer without initializing all stored properties" any idea? first screen: import SwiftUI struct RegisterFirstScreen: View {   @Binding var show : Bool   init(state: AppState) {             self.viewModel = RegisterViewModel(authAPI: AuthService(), state: state)     }   var body: some View {    NavigationLink(destination: RegisterSecondScreen(state: viewModel.state, show: $show),                            isActive: self.$pushActive) {                 Button {                              viewModel.signUp()                                     } label: {                   Text("Register Now")                     .padding()                    }               } } second screen: struct RegisterSecondScreen: View {   @ObservedObject var state: AppState       @Binding var show : Bool   var body: some View { Text("Next main screen") }}
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2.8k
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Mar ’22
why it throw an error as "'animation' was deprecated in iOS 15.0: Use withAnimation or animation(_:value:) instead"in SwiftUI 3.0?
I have a project, after update it to swiftUI 3.0, it is throw an error for    .animation(.spring()) as animation' was deprecated in iOS 15.0: Use withAnimation or animation(_:value:) instead, any idea?  @Binding var display: Bool   private var background: some View {   Color.black    .fillParent()    .opacity(0.6)    .animation(.spring())  }
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720
Activity
Feb ’22
Why I am not success to pass data from one view to another view in SwiftUI?
I have a problem when try to pass data from one view to another view, it is throw an error for   ImageDetails() as a "Missing argument for parameter 'data' in call" I do not know what I missed? struct ImageModel: Identifiable, Hashable {   var id = UUID().uuidString   var name: String   } var datas = [       ImageModel(name: "davis"), ] struct ImageRowView: View {   var data: ImageModel   var body: some View {            NavigationLink(destination: ImageDetailsView(data: ImageModel)){                       HStack{} }}} struct ImageDetailsView: View {      var body: some View {           ImageDetails()   } } struct ImageDetailsView_Previews: PreviewProvider {   static var previews: some View {           ImageDetailsView()         } } struct ImageDetails : View {      var data: ImageModel   var body: some View{   VStack{             Text(data.name)                      } }
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450
Activity
Feb ’22