DropDownController class

The controller of the drop-down menu, used to control the display and hiding of the drop-down menu.

Inheritance

Constructors

hashCode → int: The hash code for this object.
no setterinherited
hasListeners → bool: Whether any listeners are currently registered.
no setterinherited
headerIndex ↔ int: The index of the currently selected header item.
getter/setter pair
headerStatus ↔ List<DropDownHeaderStatus>: The status of header after the user selects the item
getter/setter pair
isExpand ↔ bool: Whether the DropDownView is expanded.
getter/setter pair
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
viewHeight ↔ double: The height of the DropDownView in DropDownMenu
getter/setter pair
viewOffset ↔ Offset?: The offset of the DropDownView in DropDownMenu
getter/setter pair

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
hide({int? index, DropDownHeaderStatus? status}) → void: Used to hide DropDownView. status: The status of header after the user selects the item
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(int index, {Offset? offset}) → void: Used to show DropDownView. offsetY: The Y-axis offset of the DropDownMenu in screen
toggle(int index, {Offset? offset, DropDownHeaderStatus? status}) → void: Used to toggle DropDownView.
toString() → String: A string representation of this object.
inherited