Open Radar

 
Area:
Something not on this list

Summary:
Before iOS 11, it was possible to open folders using the UIDocumentPickerViewController by adding kUTTypeDirectory to the array of document types if the document provider extension supported. This enabled one app to list and edit the contents of an entire folder in another app's sandbox.

For example, in my code editor app Textastic, you can open a folder from the Git client Working Copy. This is described in this blog post:
http://blach.io/2016/08/02/opening-git-repository-folders-in-textastic-6-2/

Please add this functionality to the new document picker when picking folder from local storage.

Steps to Reproduce:
Present a document picker with kUTTypeDirectory in the list of document types:

NSArray *utis = @[
                      (NSString *)kUTTypeText,
                      (NSString *)kUTTypePlainText,
                      (NSString *)kUTTypeSourceCode,
                      (NSString *)kUTTypeScript,
                      (NSString *)kUTTypeDirectory
                      ];
    
    UIDocumentPickerViewController *picker = [[UIDocumentPickerViewController alloc] initWithDocumentTypes:utis inMode:UIDocumentPickerModeOpen];
    [self presentViewController:picker animated:YES completion:nil];

Expected Results:
In addition to picking files, it should be possible to pick a directory from the "On my iPhone/iPad" local storage.

Observed Results:
You can only pick files.

Version:
iOS 11 Beta 1

Notes:


Configuration: