UI to move a document in UIDocumentBrowserViewController is not practical with deep folder hierarchies

Number:rdar://33004045 Date Originated:27-Jun-2017 03:58 PM
Status:Open Resolved:
Product:iOS + SDK Product Version:iOS 11b2
Classification:UI/Usability Reproducible:Always
The UI that is used to move a document to a different folder shows all possible folders in a long scrollable list. This has several drawbacks.
 1. The user has to potentially scroll a lot to find the folder he is looking for
 2. There is no search/filter function to speed this up
 3. There is no way to collapse certain folders, only storage providers itself
 4. The visual indentation for every new folder level is very wide, resulting in cut-off folder names very quickly

In addition to that, there's a bug that the title of the moved document is not centered (or the image preview doesn't show up, if it should be there as well).

Steps to Reproduce:
1. Open the attached DocumentBrowser-based app
2. Tap on "Select"
3. Select a document and tap on "Move"

Expected Results:
A practical UI is presented, that allows to quickly move a document to a certain folder

Actual Results:
The Move UI has several drawbacks outlined above

iOS 11b2



Dupe of http://www.openradar.me/32846223

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