CupertinoCheckbox constructor
- Key? key,
- required bool? value,
- bool tristate = false,
- required ValueChanged<
bool?> ? onChanged, - MouseCursor? mouseCursor,
- Color? activeColor,
- @Deprecated('Use fillColor instead. ' 'fillColor now manages the background color in all states. ' 'This feature was deprecated after v3.24.0-0.2.pre.') Color? inactiveColor,
- WidgetStateProperty<
Color?> ? fillColor, - Color? checkColor,
- Color? focusColor,
- FocusNode? focusNode,
- bool autofocus = false,
- BorderSide? side,
- OutlinedBorder? shape,
- String? semanticLabel,
Creates a macOS-styled checkbox.
The checkbox itself does not maintain any state. Instead, when the state of
the checkbox changes, the widget calls the onChanged
callback. Most
widgets that use a checkbox will listen for the onChanged
callback and
rebuild the checkbox with a new value
to update the visual appearance of
the checkbox.
The following arguments are required:
value
, which determines whether the checkbox is checked. Thevalue
can only be null iftristate
is true.onChanged
, which is called when the value of the checkbox should change. It can be set to null to disable the checkbox.
Implementation
const CupertinoCheckbox({
super.key,
required this.value,
this.tristate = false,
required this.onChanged,
this.mouseCursor,
this.activeColor,
@Deprecated(
'Use fillColor instead. '
'fillColor now manages the background color in all states. '
'This feature was deprecated after v3.24.0-0.2.pre.'
)
this.inactiveColor,
this.fillColor,
this.checkColor,
this.focusColor,
this.focusNode,
this.autofocus = false,
this.side,
this.shape,
this.semanticLabel,
}) : assert(tristate || value != null);