Quick Look Framework Reference for iOS
Use the Quick Look framework to provide previews of items that are in formats you don’t handle—such as iWork or Microsoft Office. This framework affords you more control over the preview process than you get from the
UIDocumentInteractionController class—including choosing whether the preview is displayed in the context of a navigation controller or modally (full screen). The primary class in this framework is
QLPreviewController, which provides a specialized view for previewing an item. It relies on a delegate for mediating preview actions, and a data source for providing the preview items.
If you want to take advantage of the options-menu feature, which lets a user pick an application to open a previewed item with, use the
UIDocumentInteractionController class instead.
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