Contents

nextAvailableURLs(withPathExtensions:)

Generates an array of security scoped URLs that are compliant for digital camera formats, where each element has a different path extension.

Declaration

func nextAvailableURLs(withPathExtensions extensionArray: [String]) throws -> [URL]

Parameters

  • extensionArray:

    An array of path extensions the method generates URLs for.

Return Value

An array of digital camera format (DCF) compliant URLs with security scoping, one for each path extension element in extensionArray.

Discussion

The method generates a digital camera format (DCF) compliant URL with security scoping for each file extension element in extensionArray. It does this by configuring the folder structure and, if necessary, creates a digital camera image (DCIM) folder on the external storage device.

Request access to the storage device before request

Your app can request authorization before calling the method if authorizationStatus is AVAuthorizationStatus.notDetermined by calling the requestAccess(completionHandler:) method first.

Start and stop access to a URL around your code

To access one of the security-scoped URLs the method returns, you need to call the startAccessingSecurityScopedResource(), and stopAccessingSecurityScopedResource() methods before and after your code.