How do I set an @State variable programmatically in SwiftUI

Question

I have a control that sets an @State variable to keep track of the selected tabs in a custom tab View. I can set the @State variable in code by setting the following:

@State var selectedTab: Int = 1

How do I set the initial value programmatically so that I can change the selected tab when the view is created?

I have tried the following:

1:

@State var selectedTab: Int = (parameter == true ? 1 : 2)

2:

init(default: Int) {
    self.$selectedTab = default
}

Answer 1

Example of how I set initial state values in one of my views:

struct TodoListEdit: View {
    var todoList: TodoList
    @State var title = ""
    @State var color = "None"

    init(todoList: TodoList) {
        self.todoList = todoList
        self._title = State(initialValue: todoList.title ?? "")
        self._color = State(initialValue: todoList.color ?? "None")
    }