case automatic
The element may be visible or hidden depending on the policies of the component accepting the visibility configuration.
case visible
The element may be visible.
Availability 有効性
Technology
case hidden
Some APIs may use this value to represent a hint or preference, rather than a mandatory assertion. For example, setting confirmation dialog title visibility to hidden
using the confirmation
modifier may not always hide the dialog title, which is required on some platforms.
case automatic
case visible