How to delete iCloud documents?

Question

I'm using a UIDocument with iCloud. I'm not using CoreData. What's the best way to delete a UIDocument?

Answer 1

Copied from the "Deleting a Document" section of the Document-Based App Programming Guide for iOS.

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(void) {
    NSFileCoordinator* fileCoordinator = [[NSFileCoordinator alloc] initWithFilePresenter:nil];
    [fileCoordinator coordinateWritingItemAtURL:fileURL options:NSFileCoordinatorWritingForDeleting
        error:nil byAccessor:^(NSURL* writingURL) {
        NSFileManager* fileManager = [[NSFileManager alloc] init];
        [fileManager removeItemAtURL:writingURL error:nil];
    }];
});

N.B.: "When you delete a document from storage, your code should approximate what UIDocument does for reading and writing operations. It should perform the deletion asynchronously on a background queue, and it should use file coordination."