FocusController class
Represents a focus controller for a FormControl.
- Inheritance
-
- Object
- ChangeNotifier
- FocusController
Constructors
- FocusController({FocusNode? focusNode})
- Constructs an instance of the focus controller.
Properties
- 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
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).
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.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited