One of the common tasks that iOS developers have to do is import and export documents from their iOS application. For example, suppose you are developing a document reader and you want to allow the user to import documents into your application so that they can be read offline. In addition, your reader might also support the exporting of documents so that other applications can make use of them. In this section, you will learn the different techniques you can employ to allow documents to be imported into or exported from your iOS application.
The following Try It Out creates the project that you will use to learn the various methods to import and export documents.
TRY IT OUT: Creating the Project
#import <UIKit/UIKit.h> @interface OfflineReaderViewController : UIViewController <UIDocumentInteractionControllerDelegate> ...