If true, this widget may request the primary focus.
Defaults to true. Set to false if you want the FocusNode this widget
manages to do nothing when
requestFocus is called on it. Does not affect
the children of this node, and FocusNode.hasFocus can still return true
if this node is the ancestor of the primary focus.
Setting canRequestFocus to false implies that the widget will also be skipped for traversal purposes.
DefaultFocusTraversal, a widget that sets the traversal policy for its descendants.
- FocusTraversalPolicy, a class that can be extended to describe a traversal policy.
final bool canRequestFocus