Sometimes I want to immediately rename a picture or video I just took, to remember what it was. I don't want to open a file manager, it takes too long, so here is how it should work:
- I have the file on the screen (any app that has a Share button)
- I press "Share"
- I press "Rename file"
- A popup appear, I edit the filename, press OK.
- The file is renamed and the popup disappears
- Fast to use
- Must work offline
- Free (ads OK), ideally open source