ExpandableController class

Controls the state (expanded or collapsed) of one or more Expandable. The controller should be provided to Expandable via ExpandableNotifier.

Inheritance

Constructors

ExpandableController({bool? initialExpanded})

Properties

expanded ↔ bool
Returns true if the state is expanded, false if collapsed.
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value ↔ bool
The current value stored in this notifier.
getter/setter pairinherited

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. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
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
toggle() → void
Sets the expanded state to the opposite of the current state.
toString() → String
A string representation of this object.
inherited

Operators

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

Static Methods

of(BuildContext context, {bool rebuildOnChange = true, bool required = false}) → ExpandableController?