FocusNode class - window library

Constructors

FocusNode({required String id}): Creates a new FocusNode with the given id.

children → List<FocusNode>: The children focus nodes nested under this node.
final
hasFocus → bool: Whether this node currently has focus.
no setter
hashCode → int: The hash code for this object.
no setterinherited
hasPrimaryFocus → bool: Whether this node has primary focus, meaning it is focused and none of its children are.
no setter
id → String: Unique identifier of the focus node (useful for debugging).
final
isFocused → bool: Whether this node currently holds focus.
no setter
onFocusChange ↔ void Function(bool hasFocus)?: Callback executed when this focus node gains or loses focus.
getter/setter pair
onKeyEvent ↔ bool Function(KeyEvent event)?: Callback executed when a key event hits this node. Return true to consume the keypress and prevent it from bubbling.
getter/setter pair
parent ↔ FocusNode?: The parent focus node, if any.
getter/setter pair
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

addChild(FocusNode child) → void: Adds a child focus node to this branch.
bubbleKeyEvent(KeyEvent event) → bool: Bubbles the event up the parent chain starting from the focused leaf.
dispose() → void: Disposes of the focus node, detaching it from the tree.
findFocusedLeaf() → FocusNode?: Traverses down the focused path to find the deeply focused leaf node.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
removeChild(FocusNode child) → void: Removes a child focus node from this branch.
requestFocus() → void: Request focus for this specific node.
toString() → String: A string representation of this object.
inherited
unfocus() → void: Removes focus from this node.