InsertAttachment withAlternateFilename is not working in iOS 10

Question

As per doc:

@method     insertAttachment:withAlternateFilename:completionHandler:
@abstract   The NSURL instance provided in the URL parameter is inserted into the Messages.app
input field. This must be a file URL.
@param      URL                The URL to the media file to be inserted.
@param      filename           If you supply a string here, the message UI uses it for the attachment. Use an alternate filename to better describe the attachment or to make the name more readable.
@param      completionHandler  A completion handler called when the insert is complete.
 */
open func insertAttachment(_ URL: URL, withAlternateFilename filename: String?, completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)

Where it says for

filename ---> If you supply a string here, the message UI uses it for the attachment. Use an alternate filename to better describe the attachment or to make the name more readable.

And my code is:

if let conversation = activeConversation {
    conversation.insertAttachment(fileURL, withAlternateFilename: "This is file Description.", completionHandler: nil)
}

But it is not showing anywhere in message app.

I am sending video file here.

I want to show that description on navigation bar title when user click on message or below the MSMessage if possible.

Answer 1

As of WWWDC 2020, I think this was fixed via Xcode 12 or iOS 14, because I saw it in Xcode 11, but my updated builds work.

Answer 2

As per latest doc, try func addAttachmentURL(_ attachmentURL: NSURL, withAlternateFilename alternateFilename: String?) -> Bool

https://developer.apple.com/library/ios/documentation/MessageUI/Reference/MFMessageComposeViewController_class/index.html#//apple_ref/occ/instm/MFMessageComposeViewController/addAttachmentURL:withAlternateFilename: