findFirstFocus method Null safety
- FocusNode currentNode
Returns the node that should receive focus if focus is traversing forwards, and there is no current focus.
The node returned is the node that should receive focus if focus is
traversing forwards (i.e. with next), and there is no current focus in
the nearest FocusScopeNode that currentNode belongs to.
The currentNode argument must not be null.
The default implementation returns the FocusScopeNode.focusedChild, if
set, on the nearest scope of the currentNode, otherwise, returns the
first node from sortDescendants, or the given currentNode if there are
no descendants.
See also:
- next, the function that is called to move the focus to the next node.
- DirectionalFocusTraversalPolicyMixin.findFirstFocusInDirection, a function that finds the first focusable widget in a particular direction.
Implementation
FocusNode? findFirstFocus(FocusNode currentNode) => _findInitialFocus(currentNode);