A Boolean value indicating whether the toolbar at the bottom of the screen is hidden when the view controller is pushed on to a navigation controller.
- iOS 2.0+
A view controller added as a child of a navigation controller can display an optional toolbar at the bottom of the screen. The value of this property on the topmost view controller determines whether the toolbar is visible. If the value of this property is
true, the toolbar is hidden. If the value of this property is
false, the bar is visible.