Checkbox class

A material-design checkbox that toggles between checked (✓) and unchecked states.

Responds to KeyCode.space and KeyCode.enter to toggle. Wrap in Focus to enable keyboard navigation.

Inheritance

• Object
• Widget
• StatefulWidget
• Checkbox

Constructors

Checkbox({Key? key, required bool value, ValueChanged<bool?>? onChanged, bool tristate = false, FocusNode? focusNode, Color? activeColor, Color? checkColor})

Creates a Checkbox with the given value and optional onChanged.

const

Properties

activeColor → Color?

The color of the filled checkbox when checked.

final

checkColor → Color?

The color of the check mark inside the box.

final

focusNode → FocusNode?

An optional focus node for keyboard navigation.

final

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another in the tree.

final, inherited

onChanged → ValueChanged<bool?>?

Called when the user toggles the checkbox.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

tristate → bool

Whether the checkbox supports a third "null" state.

final

value → bool

Whether the checkbox is currently checked.

final

Methods

createElement() → StatefulElement

Creates the Element for this widget.

inherited

createState() → State<Checkbox>

Creates the mutable state for this widget.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited