Array is not updating swiftUI [duplicate] - ios

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Closed 8 months ago.
I trying to update the array when the user change the input.
Here is the viewModel
struct Person: Identifiable {
var id = UUID()
var name : String
var age : String
}
class PersonViewModel : ObservableObject{
#Published var PersonArray = [Person]()
func emptyPersonArray() {
self.PersonArray.append(Person(name: "", age: ""))
}
}
struct ContentView: View {
#ObservedObject var personViewModel = PersonViewModel()
var body: some View {
VStack{
Button(action: {
personViewModel.emptyPersonArray()
}) {
HStack {
Text("Add")
.font(.title3)
.bold()
}
}
.padding()
.foregroundColor(Color.black)
.frame(width: 150.72, height: 40)
.background(RoundedRectangle(cornerRadius: 6).stroke(Color(red: 0.463, green: 0.483, blue: 1.034), lineWidth: 2))
List{
ForEach(personViewModel.PersonArray) {person in
PersonView(person: person,name: person.name, age: person.age)
}.padding(.leading, -150)
}
Button(action: {
for person in personViewModel.PersonArray{
print("Person Name: \(person.name)")
print("Person Age: \(person.age)")
}
}) {
HStack {
Text("Show data")
.font(.title3)
.bold()
}
}
}
}
}
here is PersonView:
struct PersonView: View {
#State var person: Person
#State var name = ""
#State var age = ""
var body: some View {
ZStack {
RoundedRectangle(cornerRadius: 9)
.fill(Color.white)
.frame(width: 650, height: 180)
VStack (alignment: .center) {
Text("Person")
.font(.title3)
.fontWeight(.bold)
VStack{
Text("Enter Name:")
TextField("", text: $name)
.onChange(of: name, perform: { newValue in
person.name = newValue
})
.frame(width: 289, height: 40.0)
.background(RoundedRectangle(cornerRadius: 6).stroke(Color.black))
Text("Enter Age:")
TextField("", text: $age).padding()
.onChange(of: age, perform: { newValue in
person.age = newValue
})
.frame(width: 289, height: 40.0)
.background(RoundedRectangle(cornerRadius: 6).stroke(Color.black))
} .padding(.leading)
}
}
}
}
when I tried to print it shows empty and did not update:
The problem have be solved
by changing the #State to #Binding in PersonView
struct PersonView: View {
#Binding var person: Person
var body: some View {
ZStack {
RoundedRectangle(cornerRadius: 9)
.fill(Color.white)
.frame(width: 650, height: 180)
VStack (alignment: .center) {
Text("Person")
.font(.title3)
.fontWeight(.bold)
VStack{
Text("Enter Name:")
TextField("", text: $person.name)
.onChange(of: person.name, perform: { newValue in
person.name = newValue
})
.frame(width: 289, height: 40.0)
.background(RoundedRectangle(cornerRadius: 6).stroke(Color.black))
Text("Enter Age:")
TextField("", text: $person.age).padding()
.onChange(of: person.age, perform: { newValue in
person.age = newValue
})
.frame(width: 289, height: 40.0)
.background(RoundedRectangle(cornerRadius: 6).stroke(Color.black))
} .padding(.leading)
}
}
}
}