focusNode property
Defines the focus for this widget.
Text is only selectable when widget is focused.
The focusNode is a long-lived object that's typically managed by a StatefulWidget parent. See FocusNode for more information.
To give the focus to this widget, provide a focusNode and then use the current FocusScope to request the focus:
FocusScope.of(context).requestFocus(myFocusNode);
This happens automatically when the widget is tapped.
To be notified when the widget gains or loses the focus, add a listener to the focusNode:
focusNode.addListener(() { print(myFocusNode.hasFocus); });
If null, this widget will create its own FocusNode.
Implementation
final FocusNode? focusNode;