Button class Null safety

Generic button, supports FlutterUI Modifiers.

Note: This class actually belongs to the FlutterUI package.

ignore: must_be_immutable

Inheritance
Available Extensions

Constructors

Button(Widget child()?, {Key? key})

Properties

autofocus bool
True if this widget will be selected as the initial focus when no other node in its scope is currently focused.
finalinherited
child Widget?
Typically the button's label.
finalinherited
clipBehavior Clip
The content will be clipped (or not) according to this option.
finalinherited
enabled bool
Whether the button is enabled or disabled.
read-onlyinherited
focusNode FocusNode?
An optional focus node to use as the focus node for this widget.
finalinherited
hashCode int
The hash code for this object.
@nonVirtualread-onlyinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onFocusChange ValueChanged<bool>?
Handler called when the focus changes.
finalinherited
onHover ValueChanged<bool>?
Called when a pointer enters or exits the button response area.
finalinherited
onLongPress VoidCallback?
Called when the button is long-pressed.
finalinherited
onPressed VoidCallback?
Called when the button is tapped or otherwise activated.
finalinherited
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
statesController MaterialStatesController?
Represents the interactive "state" of this widget in terms of a set of MaterialStates, like MaterialState.pressed and MaterialState.focused.
finalinherited
style ButtonStyle?
Customizes this button's appearance.
finalinherited

Methods

backgroundColor(Color? color) Button
A modifier that sets its Button's background color
createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() State<ButtonStyleButton>
Creates the mutable state for this widget at a given location in the tree.
inherited
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
defaultStyleOf(BuildContext context) ButtonStyle
Defines the button's default appearance.
inherited
disabled(bool? disabled) Button
A modifier that disabled the Button, making it unable for the user to press it.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
onLongTap(VoidCallback perform) Button
A modifier that sets its Button's onLongPress handler.
onTap(VoidCallback perform) Button
A modifier that sets its Button's onPress handler.
themeStyleOf(BuildContext context) ButtonStyle?
Returns the TextButtonThemeData.style of the closest TextButtonTheme ancestor.
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
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a one-line detailed description of the object.
inherited
toStringShort() String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) bool
The equality operator.
@nonVirtualinherited