The UIAlertView class displays a blue popup box on the screen and the UIActionSheet causes a panel to slide up from the bottom of the screen.

This presents an overview of the MPMoviePlayerController class on how to play a movie within an iOS 6 iPhone application. The sole purpose of the MPMoviePlayerController is to play video content. It is initialized with the URL of the media to be played (either a path to a local movie file on the device or the URL of network based media). The movie player view is added as a subview of the current view, configured using a variety of properties and then displayed to the user.

The application user interface for this example will consist of an image view and a toolbar containing two buttons. When touched by the user, the first button will display the camera to the user and allow a photograph to be taken which will subsequently be displayed in the image view. The second button will provide access to the camera roll where the user may select an existing photo image.

In Android, the Spinner is the equivalent of the drop-down selector you might find in other toolkits (e.g., JComboBox in Java/Swing).

ListView is a view group that displays a list of scrollable items. The list items are automatically inserted to the list using an Adapter that pulls content from a source such as an array or database query and converts each item result into a view that's placed into the list.