PullDownButton class

Displays a pull-down menu and animates button to lower opacity when pressed.

See also:

• PullDownMenuItem, a pull-down menu entry for a simple action.
• PullDownMenuItem.selectable, a pull-down menu entry for a selection action.
• PullDownMenuDivider, a pull-down menu entry for a divider.
• PullDownMenuDivider.large, a pull-down menu entry that is a large divider.
• PullDownMenuTitle, a pull-down menu entry for a menu title.
• PullDownMenuActionsRow, a more compact way to show multiple pull-down menu entries for a simple action.
• PullDownButtonTheme, a pull-down button and menu theme configuration.
• showPullDownMenu, a alternative way of displaying a pull-down menu.
• PullDownMenu, a pull-down menu box without any route animations.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• PullDownButton

Annotations

• @immutable

Constructors

PullDownButton.new({Key? key, required PullDownMenuItemBuilder itemBuilder, required PullDownMenuButtonBuilder buttonBuilder, PullDownMenuCanceled? onCanceled, Offset offset = Offset.zero, PullDownMenuPosition position = PullDownMenuPosition.under, PullDownMenuItemsOrder itemsOrder = PullDownMenuItemsOrder.downwards, PullDownMenuRouteTheme? routeTheme, bool? applyOpacity, Widget? topWidget})

Creates a button that shows a pull-down menu.

const

Properties

applyOpacity → bool?

Whether to apply opacity on buttonBuilder as it is in iOS or not.

final

buttonBuilder → PullDownMenuButtonBuilder

Builder that provides BuildContext as well as showMenu function to pass to any custom button widget.

final

hashCode → int

The hash code for this object.

no setter, inherited

itemBuilder → PullDownMenuItemBuilder

Called when the button is pressed to create the items to show in the menu.

final

itemsOrder → PullDownMenuItemsOrder

Whether the popup menu orders its items from itemBuilder in downwards or upwards way.

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

offset → Offset

The offset is applied relative to the initial position set by the position.

final

onCanceled → PullDownMenuCanceled?

Called when the user dismisses the pull-down menu.

final

position → PullDownMenuPosition

Whether the popup menu is positioned above, over or under the popup menu button.

final

routeTheme → PullDownMenuRouteTheme?

Theme of route used to display pull-down menu launched from this PullDownButton.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

topWidget → Widget?

final

Methods

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → State<PullDownButton>

Creates the mutable state for this widget at a given location in the tree.

override

debugDescribeChildren() → List<DiagnosticsNode>

Returns a list of DiagnosticsNode objects describing this node's children.

inherited

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

toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → 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.

inherited