FAccordionController class
A controller shows and hides items in an FAccordion.
When the maximum number of expanded items is reached, it automatically collapses the least recently expanded item to make room for new expansions.
Methods like toggle, expand, and collapse will not work during State.initState or before the accordion items are built. Use FAccordionItem.initiallyExpanded instead.
- Inheritance
-
- Object
- FChangeNotifier
- FAccordionController
Constructors
- FAccordionController.new({int min = 0, int? max})
- Creates a FAccordionController.
Properties
- disposed → bool
-
True if this notifier has been disposed.
no setterinherited
-
expanded
→ Set<
int> -
The indexes of the currently expanded items.
no setter
- 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
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
collapse(
int index) → Future< bool> -
Collapses the item at the given
index, returning true if successfully collapsed. -
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
-
expand(
int index) → Future< bool> -
Expands the item at the given
index, returning true if succesfully expanded. It collapses the least recently expanded item if the maximum number of expanded items is reached. -
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(
int index) → Future< bool> -
Toggles the item at the given
index, expanding it if it is collapsed and vice versa. -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited