OverlayNotifier class

A subclass of OverlayPortalController that sends a notification when show and hide are called.

Inheritance
Implemented types
Mixed-in types

Constructors

OverlayNotifier({String? debugLabel})
Optionally initializes the superclass debugLabel field.

Properties

hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
isShowing → bool
Whether the associated OverlayPortal should build and show its overlay child, using its overlayChildBuilder.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value → bool
The current value of the object.
no setteroverride

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
dispose() → void
Discards any resources used by the object.
inherited
hide() → void
Hide the OverlayPortal's overlay child.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
show() → void
Show the overlay child of the OverlayPortal this controller is attached to, at the top of the target Overlay.
override
toggle() → void
Convenience method for toggling the current isShowing status.
inherited
toString() → String
A string representation of this object.
inherited

Operators

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