struct · iOS 16.0+ · SDK 27.1
struct NavigationSplitViewVisibilityThe visibility of the leading columns in a navigation split view. Use a value of this type to control the visibility of the columns of a ``NavigationSplitView``. Create a ``State`` property with a value of this type, and pass a ``Binding`` to that state to the ``NavigationSplitView/init(columnVisibility:sidebar:detail:)`` or ``NavigationSplitView/init(columnVisibility:sidebar:content:detail:)`` initializer when you create the navigation split view. You can then modify the value elsewhere in your code to: * Hide all but the trailing column with ``detailOnly``. * Hide the leading column of a three-column navigation split view with ``doubleColumn``. * Show all the columns with ``all``. * Rely on the automatic behavior for the current context with ``automatic``. >Note: Some platforms don't respect every option. For example, macOS always displays the content column.
static get detailOnly(): NavigationSplitViewVisibilitystatic var detailOnly: NavigationSplitViewVisibility { get }Hide the leading two columns of a three-column navigation split view, so that just the detail area shows.
static get doubleColumn(): NavigationSplitViewVisibilitystatic var doubleColumn: NavigationSplitViewVisibility { get }Show the content column and detail area of a three-column navigation split view, or the sidebar column and detail area of a two-column navigation split view. For a two-column navigation split view, `doubleColumn` is equivalent to `all`.
static get all(): NavigationSplitViewVisibilitystatic var all: NavigationSplitViewVisibility { get }Show all the columns of a three-column navigation split view.
static get automatic(): NavigationSplitViewVisibilitystatic var automatic: NavigationSplitViewVisibility { get }Use the default leading column visibility for the current device. This computed property returns one of the three concrete cases: ``detailOnly``, ``doubleColumn``, or ``all``.
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