NSFileManager isUbiquitousItemAtURL example ios

isUbiquitousItemAtURL:

Returns a Boolean indicating whether the item is targeted for storage in iCloud.

- (BOOL)isUbiquitousItemAtURL:(NSURL *)url

Parameters

url

Specify the URL for the file or directory whose status you want to check.

Return Value of [NSFileManager isUbiquitousItemAtURL]

YES if the item is targeted for iCloud storage or NO if it is not. This method also returns NO if no item exists at url.

Discussion of [NSFileManager isUbiquitousItemAtURL]

This method reflects only whether the item should be stored in iCloud because a call was made to the setUbiquitous:itemAtURL:destinationURL:error: method with a value of YES for its flag parameter. This method does not reflect whether the file has actually been uploaded to any iCloud servers. To determine a file’s upload status, check the NSURLUbiquitousItemIsUploadedKey attribute of the corresponding NSURL object.

Example of [NSFileManager isUbiquitousItemAtURL]

- (BOOL)validateMenuItem:(NSMenuItem*)item 
{
     SEL action = [item action];
     if (action == @selector(moveToOrFromCloud:))
     {
          BOOL isUbiquitous = [[NSFileManager defaultManager] isUbiquitousItemAtURL:[[self document] fileURL]];
          [item setTitle:isUbiquitous ? @"Remove from Cloud": "Move to Cloud"];
          [item setTag:isUbiquitous?0:1];
          return [self.document fileURL] != nil;
     }    
     return YES;
}