ioscrashuikiticloud-documents

UIDocumentMenuViewController initWithDocumentTypes:inMode: can only be called with mode Import or Open

In my iOS app I'm opening a UIDocumentMenuViewController. When I called it with the UIDocumentPickerModeImport mode, everything works fine (all my iCloud entitlements are set up).

When I call it with the UIDocumentPickerModeExportToService, however, the app crashes with this error:

Assertion failure in -[UIDocumentMenuViewController initWithDocumentTypes:inMode:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3600.6.22/UIDocumentMenuViewController.m:71

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIDocumentMenuViewController initWithDocumentTypes:inMode:] can only be called with mode Import or Open'

What am I doing wrong? Why can this only be called with the Import or Open modes?

My code:

UIDocumentMenuViewController *exportMenu = [[UIDocumentMenuViewController alloc] initWithDocumentTypes:@[@"public.image"]
                                                                                                    inMode:UIDocumentPickerModeExportToService];
    
exportMenu.delegate = self;
[self presentViewController:exportMenu animated:YES completion:nil];

This happens in the simulator and on two devices that I've tested (both running iOS 10).

Any help will be greatly appreciated!

Solution

  • I just found the answer: When wanting to export you need to use a different init method: initWithURL:inMode:

    I wish the exception would be a little bit more helpful in this case :)