UIDocumentPickerViewController - All files grayed out

Question

I'm testing the new UIDocumentPickerViewController API in iOS 8. I want to just open a file in iCloud, to see how the interaction works.

This is the code I'm running from my UIViewController:

- (IBAction)openDocument:(id)sender {
    [self showDocumentPickerInMode:UIDocumentPickerModeOpen];
}

- (void)showDocumentPickerInMode:(UIDocumentPickerMode)mode {
    UIDocumentPickerViewController *picker = [[UIDocumentPickerViewController alloc] initWithDocumentTypes:@[(NSString *)kUTTypeData] inMode:mode];

    picker.delegate = self;

    [self presentViewController:picker animated:YES completion:nil];
}

openDocument is tied to a button in IB. When I tap it, it opens the iCloud browser, but every folder in it is grayed out (I created some test Keynote, Numbers and Pages files) so I cannot get to the files:

Document Picker with files grayed out .

I checked some documentation and did the following (with no luck):

Enabled iCloud in my app (in the Capabilities section, for both Key-value storage and iCloud Documents).
Added the UTI for public.data in my Info.plist as follows:
```
<key>CFBundleDocumentTypes</key>
```
CFBundleTypeIconFile icon.png CFBundleTypeName MyData CFBundleTypeRole Viewer LSItemContentTypes public.data LSTypeIsPackage NSDocumentClass Document NSPersistentStoreTypeKey Binary
Added the NSUbiquitousContainerIsDocumentScopePublic key with a value of YES to my Info.plist.

Any idea what could be wrong or missing?

Your image doesn't show grayed out files. What happens if you open the folder(s)? — Owen Hartnett
– Owen Hartnett, Commented Jun 30, 2014 at 19:13
The folder(s) are grayed out, I cannot get to the files. Just added a clarification. — pgb
– pgb, Commented Jun 30, 2014 at 19:14
@karan not yet. I can't link my project with the latest Xcode... — pgb
– pgb, Commented Jul 15, 2014 at 15:00
@pgb thanks for your reply. I am also working with UIDocumentPickerViewController in my app.I followed above steps but when presenting UIDocumentPicker app get crash with error "icloud entittlement missing for uidocumentpicker". I enable icloud to my project. Can you test your project with latest beta? — karan
– karan, Commented Jul 16, 2014 at 4:46

nikhil nangia · Accepted Answer · 2017-02-09 17:09:40Z

24

**Swift 3+ Solution**

Will open and provide access to all items on drive.

//open document picker controller

func openImportDocumentPicker() {
    let documentPicker = UIDocumentPickerViewController(documentTypes: ["public.item"], in: .import)
    documentPicker.delegate = self
    documentPicker.modalPresentationStyle = .formSheet
    self.present(documentPicker, animated: true, completion: { _ in })
}
/*
 *
 * Handle Incoming File
 *
 */

func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {
    if controller.documentPickerMode == .import {
        let alertMessage: String = "Successfully imported \(url.absoluteURL)"
   }
}
/*
 *
 * Cancelled
 *
 */

func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
    print("Cancelled")
}

answered Feb 9, 2017 at 17:09

nikhil nangia

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2 Comments

nikhil nangia Over a year ago

Glad ! Could help you .

Sasho Over a year ago

Public faking item!

honganhkhoa · Accepted Answer · 2014-07-14 03:40:39Z

18

iWork documents do not conform to kUTTypeData, they conform to kUTTypePackage.

However, in iOS 8 beta 3, I had to use the exact UTIs:

UIDocumentPickerViewController *picker = [[UIDocumentPickerViewController alloc] initWithDocumentTypes:@[@"com.apple.iwork.pages.pages", @"com.apple.iwork.numbers.numbers", @"com.apple.iwork.keynote.key"] inMode:mode];

answered Jul 14, 2014 at 3:40

honganhkhoa

3863 silver badges6 bronze badges

6 Comments

Weaverfish Over a year ago

Seems to occur in beta 4 as well

arcticmatt Over a year ago

It occurs in beta 5 as well

Tarek Over a year ago

Thanks for the answer! How did you know the UTIs of Apple's own apps? Is that published somewhere? Thanks again!

honganhkhoa Over a year ago

You can use the mdls command to see the UTI of a file. iWork files created on the Mac also have ZIP file format, but files saved in iCloud seem to always use the package format.

Eytan Schulman Over a year ago

When I use these UTIs, the iWork folders become openable, but upon tapping on a file nothing happens. I have implemented documentPicker didPickDocumentAtURL and it is not being called

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