Use UIActivityViewController to share all types of files

Question

I want to use UIActivityViewController to share files from my iOS app. The main question for me is how do I handle different file types.

What I\'v got s

Answer 1

I tried to implement UIActivityItemProvider, but here again not all apps where shown for the corresponding filetype. E.g. for a docx-document Word was not shown.

Now I switched to UIDocumentInteractionController and now there are many apps available.

UIDocumentInteractionController documentController = new UIDocumentInteractionController();
documentController.Url = new NSUrl(filepath, false);
string fileExtension = Path.GetExtension(filepath).Substring(1);
string uti = UTType.CreatePreferredIdentifier(UTType.TagClassFilenameExtension.ToString(), fileExtension, null);
documentController.Uti = uti;

UIView presentingView = UIApplication.SharedApplication.KeyWindow.RootViewController.View;
documentController.PresentOpenInMenu(CGRect.Empty, presentingView, true);

Imho there are too many apps, because the file type xml should not be really be supported by a PDF reader, but it is. Nevertheless, it seems to work now thanks to this post:

In general if you’re sharing an image or url, you might want to use a UIActivityViewController. If you’re sharing a document, you might want to use a UIDocumentInteractionController.