I found this tutorial in order to let my users share images from my app:
https://www.hackingwithswift.com/articles/118/uiactivityviewcontroller-by-example
Here is the relevant code:
let items = [yourImage]
let ac = UIActivityViewController(activityItems: items, applicationActivities: nil)
present(ac, animated: true)
It looks like I need to pass a UIImage in the items array.
In my app, I show a feed of images. In the API call for the feed, each image has a thumbnail URL (smaller size) and a full-size URL. My app displays the thumbnail images in the feed in order to keep my app speedy.
This activity view controller is triggered when the user long-presses one of the images in the feed. The problem is that I want the user to be able to share the full-size image (which isn't loaded into any ImageView in the feed), instead of the thumbnail image.
How can I do this?
I've considered fetching the full-size image on long press by following this tutorial, but this causes issues in that the activity view controller doesn't actually show until the image is fully downloaded.
What else can I do??
As an additional question, would the same apply to if I wanted to let the user share a video (mp4)?