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Make SwiftUI Form Change a Variable's Value With The User's Input

How can I make the fields in a form add the users input to a string variable?


The code is below:


import SwiftUI

struct ContentView: View {
    var colorPicker = ["Select an option", "Red", "Brown", "Tan"]
    var oppoAttractPicker = ["Select an option", "Yes", "No",]
    var intExtPicker = ["Select an option", "Intravert", "Extravert"]
    @State var firstName = ""
    @State var lastName = ""
    @State var selectedIntExt = "Select an option"
    @State var selectedOppoAttract = "Select an option"
    @State var selectedColor = "Select an option"
    @State var status = ""
    
    var body: some View {
        NavigationView {
            VStack {
                Form {
                    Section {
                        TextField("First Name", text: $firstName)
                        TextField("Last Name", text: $lastName)
                    }
                    Section {
                        Picker("Opposites attract", selection: $selectedOppoAttract) {
                            ForEach(oppoAttractPicker, id: \.self) {
                                Text($0)
                            }
                        }
                        Picker("Choose color", selection: $selectedColor) {
                            ForEach(colorPicker, id: \.self) {
                                Text($0)
                            }
                        }
                        Picker("Intravert/Extravert", selection: $selectedIntExt) {
                            ForEach(intExtPicker, id: \.self) {
                                Text($0)
                            }
                        }
                    }
                }
            }
            .navigationTitle("My App")
            .toolbar {
                NavigationLink(destination: SaveView()) {
                    HStack {
                        Text("Done")
                    }
                }
            }
        }
    }
}

struct ContentView_Preview: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}


So if the user enters "Hello" in the one of the text fields, "Hello" will be saved in the status var.


Thanks,

Liam

MacBook Pro Apple Silicon

Posted on Oct 6, 2022 8:55 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 6, 2022 11:21 AM

Why don't you create a text field for the status and bind it to the status variable like you do for the first name and last name?


The only text fields I see in your code are for a first name and last name. Why would someone ever type "Hello" in those text fields? I don't understand why you want the status to be the person's first or last name.

6 replies
Question marked as Top-ranking reply

Oct 6, 2022 11:21 AM in response to liamcharger

Why don't you create a text field for the status and bind it to the status variable like you do for the first name and last name?


The only text fields I see in your code are for a first name and last name. Why would someone ever type "Hello" in those text fields? I don't understand why you want the status to be the person's first or last name.

Oct 10, 2022 10:31 AM in response to liamcharger


liamcharger wrote:

@MrHoffman

It does for me.


There seems to be a discrepancy somewhere then; some code in another module?




Xcode 14.0.1 macOS Monterey 12.6 on Intel, newly-created Swift Language SwiftUI project, cut-and-pasted code, build fails.


Or I'm completely missing something here in the build settings or such, which is also possible.

Make SwiftUI Form Change a Variable's Value With The User's Input

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