adwaita-swift/Documentation/Reference/structs/Binding.md

STRUCT

Binding

A property wrapper for a property of a view that binds the property of the parent view.

struct Grandparent: View {

    @State private var state = false

    var view: Body {
        Parent(value: $state)
    }
}

struct Parent: View {

    @Binding var value: Bool

    var view: Body {
        Child(value: $value)
    }

}

struct Child: View {

    @Binding var value: Bool

    var view: Body {
        // ...
    }

}

Properties

wrappedValue

The value.

projectedValue

Get the value as a binding using the $ prefix.

getValue

The closure for getting the value.

setValue

The closure for settings the value.

Methods

init(get:set:)

Initialize a property that is bound from a parent view.

• Parameters:
  • get: The closure for getting the value.
  • set: The closure for setting the value.

constant(_:)

Initialize a property that does not react to changes in the child view.

• Parameters:
  • value: The constant value.
• Returns: The binding.