secondary property
final
This is the policy that is used when a node doesn't have an order assigned, or when multiple nodes have orders which are identical.
If not set, this defaults to ReadingOrderTraversalPolicy.
This policy determines the secondary sorting order of nodes which evaluate as having an identical order (including those with no order specified).
Nodes with no order specified will be sorted after nodes with an explicit order.
Implementation
final FocusTraversalPolicy? secondary;