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A preview action, or peek quick action, that is displayed below a peek when a user swipes the peek upward.
An object containing a group of commands and other groups.
UIAccelerometer class lets you register to receive acceleration-related data from the onboard hardware. As a device moves, its hardware reports linear acceleration changes along the primary axes in three-dimensional space. You can use this data to detect both the current orientation of the device (relative to the ground) and any instantaneous changes to that orientation. You might use instantaneous changes as input to a game or to initiate some action in your application.
Menu View Controller
A list of all the available document providers for a given file type and mode, in addition to custom menu items that you add.
User Notification Category
UIMutable is deprecated in iOS 10. Use
UNNotification instead. A
UIMutable object encapsulates information about custom actions that your app can perform in response to a local or push notification. Use instances of this class to customize the actions included in an alert when space onscreen is constrained.
UIStoryboard class defines a specific type of segue for presenting content in a popover. For popover segues, the destination view controller contains the content to be displayed in the popover. This class provides an additional
popover property so that your custom code has access to the popover controller object. For example, you might want to store the popover controller elsewhere in your code so that you can dismiss the popover programmatically.
UIAccelerometer protocol defines a single method for receiving acceleration-related data from the system. Implementation of this method is optional, but expected.
For apps that run in versions of iOS prior to iOS 8, the
UIAlert protocol defines the methods a delegate of a
UIAlert object should implement. The delegate implements the button actions and any other custom behavior. Some of the methods defined in this protocol are optional.
UIPopover protocol defines the methods you can implement for the delegate of a
UIPopover object. Popover controllers notify their delegate whenever user interactions would cause the dismissal of the popover and, in some cases, give the user a chance to prevent that dismissal.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.Learn more about using Apple's beta software