Using this guide, I made it so that my app is able to open jpeg's and pngs by clicking the "Open in (my app)" button.
This works say, when I open a photo in the messages app and click share. But, I can't seem to get it to work anywhere else. My app doesn't pop up in photos, or mail.
So my question is, am I doing something wrong or is messages the only app that supports exporting files? If not, which apps do? Is there a list?
Thanks, Gabe