UserDefaults Text / SwiftUI - ios

Question

When I click the "Update" button, I want the text view to save the text used in the User Defaults.
I could not. Do you know how? Can you edit the codes?
After updating, I want the checkbox to appear, but first I need to set user defaults.
Struct ContentView: View{
#State private var profilName = ""
#State private var profilSurname = ""
var body: some View{
ZStack{
VStack{
TextField("Name", text: $profilName)
.frame(height: 60)
.padding([.leading, .trailing], 20)
.foregroundColor(.white)
.font(Font.system(size: 30, design: .default))
.multilineTextAlignment(.center)
.accentColor(Color.white)
.overlay(RoundedRectangle(cornerRadius:30)
.stroke(Color(#colorLiteral(red: 0.5411764706, green:
0.4549019608, blue: 0.2823529412, alpha: 1)), lineWidth: 1)).padding(.horizontal, 50)
TextField("Surname", text: $profilSurname)
.frame(height: 60)
.padding([.leading, .trailing], 20)
.foregroundColor(.white)
.font(Font.system(size: 30, design: .default))
.multilineTextAlignment(.center)
.accentColor(Color.white)
.overlay(RoundedRectangle(cornerRadius:30)
.stroke(Color(#colorLiteral(red: 0.5411764706, green: 0.4549019608, blue: 0.2823529412, alpha: 1)), lineWidth: 1)).padding(.horizontal, 50)
Button(action: {
}, label: {
Text("Update")
.frame(width:300 , height: 40)
.padding(10)
.font(Font.system(size: 30, weight: .medium, design: .serif))
.foregroundColor(.white)
.background(RoundedRectangle(cornerRadius: 45))
.foregroundColor(.init(red: 45 / 255, green: 0 / 255, blue: 112 / 255))
})
}
}
}
}

Answer 1

You can save textfield content by simply calling user defaults in button action
Button(action: {
UserDefaults.standard.set(profilSurname, forKey: "Key")
}
To retrieve text from user defaults when app starts load user defaults data in init function like below
struct ContentView: View{
#State private var profilName = ""
#State private var profilSurname = ""
init() {
self._profilSurname = State(initialValue: UserDefaults.standard.object(forKey: "Key") as? String ?? "")
}
var body: some View{

Answer 2

struct ContentView: View{
#State private var profilName = ""
#State private var profilSurname: String = UserDefaults.standard.string(forKey: "Key") ?? ""
var body: some View{
ZStack{
VStack{
TextField("Name", text: $profilName)
.frame(height: 60)
.padding([.leading, .trailing], 20)
.foregroundColor(.black)
.font(Font.system(size: 30, design: .default))
.multilineTextAlignment(.center)
.accentColor(Color.white)
.overlay(RoundedRectangle(cornerRadius:30)
.stroke(Color(#colorLiteral(red: 0.5411764706, green:
0.4549019608, blue: 0.2823529412, alpha: 1)), lineWidth: 1)).padding(.horizontal, 50)
TextField("Surname", text: $profilSurname)
.frame(height: 60)
.padding([.leading, .trailing], 20)
.font(Font.system(size: 30, design: .default))
.multilineTextAlignment(.center)
.accentColor(Color.white)
.overlay(RoundedRectangle(cornerRadius:30)
.stroke(Color(#colorLiteral(red: 0.5411764706, green: 0.4549019608, blue: 0.2823529412, alpha: 1)), lineWidth: 1)).padding(.horizontal, 50)
Button(action: {
UserDefaults.standard.set(profilSurname, forKey: "Key")
}, label: {
Text("Update")
.frame(width:300 , height: 40)
.padding(10)
.font(Font.system(size: 30, weight: .medium, design: .serif))
.foregroundColor(.white)
.background(RoundedRectangle(cornerRadius: 45))
.foregroundColor(.init(red: 45 / 255, green: 0 / 255, blue: 112 / 255))
})
}
}
}
}

Answer 3

This will be the updated code.
Button(action: {
// This is the action section. You can add your code here
UserDefaults.standard.set($profilSurname.wrappedValue, forKey: "surnname")
}, label: {
Text("Update")
.frame(width:300 , height: 40)
.padding(10)
.font(Font.system(size: 30, weight: .medium, design: .serif))
.foregroundColor(.white)
.background(RoundedRectangle(cornerRadius: 45))
.foregroundColor(.init(red: 45 / 255, green: 0 / 255, blue: 112 / 255))
})
Getting stored values form Userdefaults
let surnName = UserDefaults.standard.object(forKey: "surnname") as? String ?? ""