initState method

@override void initState()

Called when this state object is first inserted into the tree.

Implementation

@override
void initState() {
  super.initState();
  _focusNode = providedFocusNode ?? FocusNode();
  _isFocusNodeOwned = providedFocusNode == null;
  FocusManager.instance.registerNode(_focusNode);
  _focusNode.onKeyEvent = onKeyEvent;
  _focusNode.addListener(_onFocusChange);
  _hasFocus = _focusNode.hasFocus;
}