preferredPrimaryColumnWidthFraction
The relative width of the primary view controller’s content.
Declaration
var preferredPrimaryColumnWidthFraction: CGFloat { get set }Discussion
Use this property to specify your preferred width for the primary view controller’s view. The value of this property is a floating-point number between 0.0 and 1.0 that represents the percentage of the overall width of the split view controller. For example, the value 0.4 represents 40% of the current width. The default value of this property is automaticDimension, which results in an appropriate width for the primary view controller.
The values in the minimumPrimaryColumnWidth and maximumPrimaryColumnWidth properties constrain the actual width of the primary view controller. The split view controller attempts to use the width you specify, but may change this value to accommodate the available space. You can get the actual width for the primary view controller’s view from the primaryColumnWidth property.
See Also
Managing column dimensions
isCollapsedpreferredPrimaryColumnWidthprimaryColumnWidthminimumPrimaryColumnWidthmaximumPrimaryColumnWidthpreferredSupplementaryColumnWidthFractionpreferredSupplementaryColumnWidthsupplementaryColumnWidthminimumSupplementaryColumnWidthmaximumSupplementaryColumnWidthpreferredSecondaryColumnWidthpreferredSecondaryColumnWidthFractionminimumSecondaryColumnWidthpreferredInspectorColumnWidthpreferredInspectorColumnWidthFraction