case automatic
The element may be visible or hidden depending on the policies of the component accepting the visibility configuration.
case hidden
The element may be hidden.
Availability 有効性
Technology
case visible
Some APIs may use this value to represent a hint or preference, rather than a mandatory assertion. For example, setting list row separator visibility to visible
using the list
modifier may not always result in any visible separators, especially for list styles that do not include separators as part of their design.
case automatic
case hidden