How do I access data from a child view as the parent view at any time in SwiftUI?

Question

I\'m new to SwiftUI and understand that I may need to implement EnvironmentObject in some way, but I\'m not sure how in this case.

This is the Trade cla

Answer 1

You can use @Binding and @State / @Published in Combine. In other words, use a @Binding property in Child View and bind it with a @State or a @Published property in Parent View as following.

struct ChildView: View {
    @Binding var property1: String
    var body: some View {
        VStack(alignment: .leading) {
            TextField(placeholderTitle, text: $property1)
        }        
    }
}
struct PrimaryTextField_Previews: PreviewProvider {
    static var previews: some View {
        PrimaryTextField(value: .constant(""))
    }
}

struct ParentView: View{
    @State linkedProperty: String = ""
    //...
        ChildView(property1: $linkedProperty)
    //...
}

or if you have a @Publilshed property in your viewModel(@ObservedObject), then use it to bind the state like ChildView(property1: $viewModel.publishedProperty).