findLastFocus method Null safety
- FocusNode currentNode
Returns the node that should receive focus if focus is traversing backwards, and there is no current focus.
The node returned is the one that should receive focus if focus is
traversing backwards (i.e. with previous), 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
last node from sortDescendants, or the given currentNode if there are
no descendants.
See also:
- previous, 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 findLastFocus(FocusNode currentNode) => _findInitialFocus(currentNode, fromEnd: true);