PopupMenuButton<T> class

Flutter-style popup menu button.

Pressing the trigger opens a dropdown menu under the button.

Inheritance

Constructors

PopupMenuButton({required List<PopupMenuEntry<T>> items, ValueCmdCallback<T>? onSelected, CmdCallback? onCanceled, T? initialValue, Widget? child, Widget? icon, bool enabled = true, ButtonSize size = ButtonSize.small, ButtonVariant variant = ButtonVariant.outline, Border? menuBorder = Border.rounded, Color? menuBorderColor, Color? menuBackground, Color? menuSelectedBackground, Color? menuSelectedForeground, Color? menuForeground, EdgeInsets? itemPadding, Key? key})

Properties

accessibilityLabel → String?
Optional accessibility label.
no setterinherited
accessibilityRole → String
Optional accessibility role.
no setterinherited
child → Widget?
final
children → List<Widget>
Child widgets that receive forwarded messages.
no setterinherited
debugRenderObjectPassthrough → bool
Whether this widget is intentionally transparent to render-object layouts.
no setterinherited
degradationSignal → WidgetDegradationSignal
Signal that controls this widget's render budget behavior.
no setterinherited
enabled → bool
final
focusable → bool
Whether this widget can receive keyboard focus.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
icon → Widget?
final
id → String
Unique identifier for this widget.
no setterinherited
initialValue → T?
final
itemPadding → EdgeInsets?
final
items → List<PopupMenuEntry<T>>
final
key → Key?
Key for preserving widget identity.
finalinherited
final
final
final
final
final
final
onCanceled → CmdCallback?
final
onSelected → ValueCmdCallback<T>?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
size → ButtonSize
final
theme → Theme
Access the current theme.
no setterinherited
variant → ButtonVariant
final

Methods

buildCachedView<T>(T builder(), Object? cacheKey) → T
Returns a cached view if the cache key matches.
inherited
createState() → State<StatefulWidget>
Creates the mutable State associated with this widget.
override
handleInit() → Cmd?
Override this instead of init for widget-specific initialization.
inherited
handleIntercept(Msg msg) → (Widget, Cmd?)
Override this to handle messages before they reach children.
inherited
handleUpdate(Msg msg) → (Widget, Cmd?)
Override this to handle messages specific to this widget.
inherited
init() → Cmd?
Called once when the widget is first mounted.
inherited
invalidateCachedView() → void
Clears any cached view for this widget.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
shouldRenderAt(DegradationLevel degradationLevel, {required bool subtreeHasFocusedWidget}) → bool
Whether this widget should participate in the current render when degradationLevel is active.
inherited
toString() → String
A string representation of this object.
inherited
update(Msg msg) → (Model, Cmd?)
Handles messages by forwarding to children then calling handleUpdate.
inherited
view() → Object
Renders the widget to a string or View.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited