descendantsAreFocusable property Null safety
If false, will make this widget's descendants unfocusable.
Defaults to true. Does not affect focusability of this node (just its descendants): for that, use FocusNode.canRequestFocus.
If any descendants are focused when this is set to false, they will be unfocused. When descendantsAreFocusable is set to true again, they will not be refocused, although they will be able to accept focus again.
Does not affect the value of FocusNode.canRequestFocus on the descendants.
If a descendant node loses focus when this value is changed, the focus will move to the scope enclosing this node.
- ExcludeFocus, a widget that uses this property to conditionally exclude focus for a subtree.
- descendantsAreTraversable, which makes this widget's descendants untraversable.
- ExcludeFocusTraversal, a widget that conditionally excludes focus traversal for a subtree.
- FocusTraversalGroup, a widget used to group together and configure the
focus traversal policy for a widget subtree that has a
descendantsAreFocusableparameter to conditionally block focus for a subtree.
bool get descendantsAreFocusable => _descendantsAreFocusable ?? focusNode?.descendantsAreFocusable ?? true;