How to access files in iCloud Drive from within my iOS app?

Question

Is there a way to choose file from iCloud Drive similar way to UIImagePickerController()?

Answer 1

iCloudUrl.startAccessingSecurityScopedResource() // is returning true for me at this point,

However the following code gave the error:

try FileManager.default.createDirectory(atPath: iCloudUrl, withIntermediateDirectories: true, attributes: nil)

"You can’t save the file “xyz” because the volume is read only."

This actually works :
try FileManager.default.createDirectory(at: iCloudUrl, withIntermediateDirectories: true, attributes: nil)

Which makes sense because the URL probably is carrying around it’s security access, but this little oversight stumped me for half a day…