This seems to be a feature that’s pretty popular. Saw this post yesterday with an example of it being implemented.
Not sure how hard this would be to work up though, I haven’t gone through that code to figure out how its done.
Edit:
Just went through the docs and found this file which seems to have some of the logic. Ethically, I wouldn’t go and take this and work it up for ionic, but if someone wants to reach out the the owner of the repo and see if he wouldn’t mind helping out…
Food for thought