iOS Open in didn't work in share extension

Question

in the app integrated "app extension" processing. It has "open in" functionality. Problems that I work with special files (f.e. it has special extension - file_name.myextension). And when I try to do "Open In" from an email client.

I will get error: "No suitable App installed"

By the way I have updated plist file UIDocumentPickerSupportedFileTypes section:

        <key>UIDocumentPickerSupportedFileTypes</key>
        <array>
            <string>.myextension</string>
            <string>public.content</string>
        </array>

And this is didn't help. If you have some idea, it will be great. Thanks.

Answer 1

When using a custom filetype you have to add a new UTI.

For more infomation: https://developer.apple.com/library/ios/qa/qa1587/_index.html