iOS13 UIDocumentPickerViewController - open directory does not display select/open/cancel buttons

Question

I am using UIDocumentPickerViewController to browse through and let the user select a directory but on iOS 13 when this UIDocumentPickerViewController is displayed, the buttons that should be displayed like select/cancel and open/done are not displayed but when you tap on that location it does behaves like how it would if the buttons were visible. Also this problem is seen only on iOS 13. With the same code, the buttons are displayed on iOS 12. Any help is appreciated

I do have the navigation bar's tint color set to nil for an instance of UIDocumentBrowserViewController in AppDelegate didFinishLaunchingWithOptions.

if #available(iOS 11.0, *) {
    UINavigationBar.appearance(whenContainedInInstancesOf: [UIDocumentBrowserViewController.self]).tintColor = nil
} 


//Here is how UIDocumentPickerViewController is created and presented
let documentPickerViewController = UIDocumentPickerViewController(documentTypes:["public.folder"], in: .open)
...
...
...

self!.documentPickerViewController.delegate = self!
self!.documentPickerViewController.allowsMultipleSelection = true
self!.documentPickerViewController.modalPresentationStyle = .fullScreen     

self!.navigationController?.present(self!.documentPickerViewController, animated: true, completion:nil)

Here is a screenshot

Edit : Here is the View Hierarchy - Not sure why DOCExportModeViewController on iOS 13. On iOS 12, it is a UIDocumentBrowserViewController for the same code. Any ideas how this can be fixed?

I observe this behavior in light mode, where buttons seem to be there but white on white, and therefore invisible. That's why they still work by knowing their position. — keeshux
– keeshux, Commented Feb 27, 2020 at 14:17

Martin Braun · Accepted Answer · 2020-04-27 09:41:49Z

1

I found this quick fix, if the document ViewController or any other picker is used at multiple places:

if #available(iOS 11.0, *) {
    UINavigationBar.appearance(whenContainedInInstancesOf: [UIDocumentBrowserViewController.self]).tintColor = nil
}

If you are worried for one place or have different colors at different places you can set tint color in ViewWillAppear and reset it in ViewWillDisappear method.

edited Apr 27, 2020 at 9:41

Martin Braun

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answered Apr 27, 2020 at 7:36

Vahida Havaldar

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Comments

Suresh M460 · Accepted Answer · 2019-10-10 12:54:41Z

0

I have observed that UIDocumentPickerController is a subclass of UIViewController Where UIImagepickerController is a subclass of UINavigationController.

if you try to set tintColor of navBar for UIImagePickerController , you can directly access it like imagePicker.navigationBar.tintColor = .red, coming to the document picker, you Cann't access navigationBar directly.you can access it by imagePicker.navigationController?.navigationBar.tintColor = .red. Here navigationController is Optional.thats why we are unable to access navbar directly and make changes.

Apple created an app with document picker. Refer source code here: Particles

edited Oct 10, 2019 at 12:54

answered Oct 5, 2019 at 16:51

Suresh M460

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2 Comments

learner Over a year ago

Your first suggestion does not work and I cannot set the tint color globally.

Suresh M460 Over a year ago

I have updated the answer and please make me correct if I was wrong.

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