FocusController class

Represents a focus controller for a FormControl.

Inheritance

Constructors

FocusController({FocusNode? focusNode}): Constructs an instance of the focus controller.

disposed ↔ bool: getter/setter pair
focusNode → FocusNode: Gets the UI focus node registered with the controller.
no setter
hasFocus → bool: Gets the focus state of the focus controller.
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

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).
override
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void: Call all the registered listeners.
inherited
onControlFocusChanged(bool hasFocus) → void: This method is called from FormControl to notify the controller that the focus in the control has changed.
removeListener(VoidCallback listener) → void: Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
toString() → String: A string representation of this object.
inherited
updateFocus(bool hasFocus, {bool emitEvent = true}) → void: Update the focus state for controller.