The element you are referencing in the mockup is called 'Action Sheet' in iOS terminology.
An action sheet always contains at least two buttons that allow users to choose how to complete their task. When users tap a button, the action sheet disappears. An action sheet doesn’t include a title or explanatory text, because it appears in immediate response to a user action.
Use an action sheet to:
- Provide alternate ways to complete a task. An action sheet lets you to provide a range of choices that make sense in the context of the current task, without giving these choices a permanent place in the UI.
- Get confirmation before completing a potentially dangerous task. An action sheet prompts users to think about the potentially dangerous effects of the step they’re about to take and gives them some alternatives. This type of communication is particularly important on iOS devices because sometimes users tap controls without meaning to.
The guideline states that it should not contain any title or explanatory text (you are showing the title). If you can make the pop-up menu (action sheet) that obvious, then you can use it (according to the guidelines).
That being said, guidelines can be broken if deemed necessary. In your case, I would like to know why a standard ipad menu is not being used? When you select 'Settings' the current menu items are replaced by the settings' items. Back and forth navigation.
The action sheet menu can be useful when changing certain settings, like, volume or something from the menu. The context is quite clear and there is no need of adding another layer of hierarchy, rather can just use a pop-up at that level.