Controls the View behavior for the given layout property. Note
that the selected behavior only applies to unnamed Views or
Views with the prefix internal-generated-. In all cases, if any
View in the layout does not already exist, it will be created
with a name that starts with internal-generated-.
When set to reparent, Views prefixed with internal-generated- will
be reparented to the current Window and added to this new Layout.
Use this option when you need to transfer an existing Layout between Windows.
When set to 'duplicate', Views prefixed with internal-generated- will
be duplicated with new generated names. Use this option when you need
to clone a Layout to any Window.
When set to default or omitted, the Layout will attempt to re-use
existing Views only if they are attached to the current Window or
the Provider Window. Set to default or omit this option when creating
Layouts as part of implementing the LayoutManager::applyLayoutSnapshot
override. Note that during applyLayoutSnapshot, Views are created and
attached to the Provider while the Window is being created, so it's
important to not 'duplicate' Views in this workflow.
Default Value
'default'
Controls the View behavior for the given
layoutproperty. Note that the selected behavior only applies to unnamed Views or Views with the prefixinternal-generated-. In all cases, if any View in thelayoutdoes not already exist, it will be created with a name that starts withinternal-generated-.When set to
reparent, Views prefixed withinternal-generated-will be reparented to the current Window and added to this new Layout. Use this option when you need to transfer an existing Layout between Windows.When set to 'duplicate', Views prefixed with
internal-generated-will be duplicated with new generated names. Use this option when you need to clone a Layout to any Window.When set to
defaultor omitted, the Layout will attempt to re-use existing Views only if they are attached to the current Window or the Provider Window. Set todefaultor omit this option when creating Layouts as part of implementing the LayoutManager::applyLayoutSnapshot override. Note that during applyLayoutSnapshot, Views are created and attached to the Provider while the Window is being created, so it's important to not 'duplicate' Views in this workflow.