Forms, Input & Validation

The Form container

struct SettingsView: View {
    @State private var name = ""
    @State private var notifications = true
    @State private var theme = "Light"

    var body: some View {
        Form {
            Section("Profile") {
                TextField("Name", text: $name)
            }
            Section("Preferences") {
                Toggle("Notifications", isOn: $notifications)
                Picker("Theme", selection: $theme) {
                    Text("Light").tag("Light")
                    Text("Dark").tag("Dark")
                }
            }
        }
    }
}

Simple validation

Button("Save") { save() }
    .disabled(name.isEmpty)   // can't tap until valid

Tip: Two-way binding with $ means the view and your state always stay in sync automatically.