iPhone and iPad App 24-Hour Trainer by Abhishek Mishra & Gene Backlin

Author:Abhishek Mishra & Gene Backlin
Language: eng
Format: epub
Publisher: Wiley Publishing, Inc.
Published: 2012-04-02T16:00:00+00:00

Opening an Existing Document

To open an existing document, allocate and initialize an instance of your UIDocument subclass and call openWithCompletionHandler on the instance. For example, you could open a file called phoneNumbers.txt from iCloud using the following snippet:

NSURL *containerURL = [[NSFileManager defaultManager] URLForUbiquityContainerIdentifier:nil]; NSURL *documentURL = [[containerURL URLByAppendingPathComponent:@"Documents"] URLByAppendingPathComponent:@"phoneNumber.txt"]; CloudTestDocument* cloudDocument = [[CloudTestDocument alloc] initWithFileURL:documentURL]; [self.cloudDocument openWithCompletionHandler:^(BOOL success) if (success) { // cloud document opened successfully! } }];

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