CommandBarButton class
Buttons are the most common control to put within a CommandBar. They are composed of an (optional) icon and an (optional) label.
- Inheritance
-
- Object
- CommandBarItem
- CommandBarButton
Constructors
- CommandBarButton({Key? key, Widget? icon, Widget? label, Widget? subtitle, Widget? trailing, required VoidCallback? onPressed, VoidCallback? onLongPress, FocusNode? focusNode, bool autofocus = false})
-
Creates a command bar button
const
Properties
- autofocus → bool
-
True if this widget will be selected as the initial focus when no other
node in its scope is currently focused.
final
- focusNode → FocusNode?
-
An optional focus node to use as the focus node for this widget.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- icon → Widget?
-
The icon to show in the button (primary area) or menu (secondary area)
final
- key → Key?
-
finalinherited
- label → Widget?
-
The label to show in the button (primary area) or menu (secondary area)
final
- onLongPress → VoidCallback?
-
final
- onPressed → VoidCallback?
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- subtitle → Widget?
-
The sub-title to use if this item is shown in the secondary menu
final
- trailing → Widget?
-
The trailing widget to use if this item is shown in the secondary menu
final
Methods
-
build(
BuildContext context, CommandBarItemDisplayMode displayMode) → Widget -
Builds the final widget for this display mode for this item.
Sub-classes implement this to build the widget that is appropriate
for the given display mode.
override
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringShort(
) → String -
A brief description of this object, usually just the runtimeType and the
hashCode.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited