This sample demonstrates how to use popovers using UIPopoverController in iOS, including presentation, dismissal, and rotation.
The sample uses a UISplitViewController to show how to present popovers from bar button items. It also demonstrates how you can ensure that multiple popovers are not presented at the same time.
## Main classes
Acts as the master list view controller for the split view controller and adds rows of placeholder items to the table view.
Displays the detail view of the split view controller. This also contains buttons and a toolbar that all present popovers. The controller responds to orientation changes when popovers are visible and re-displays them in the new orientation; it is also responsible for ensuring that there are never multiple popovers visible at the same time.
A view controller that manages the contents of the popovers in this sample. In this example, the view only contains a label with text.
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