I used GIFBrewery a couple times before and it works great [1] [2] [3].

It is easier to understand now, but I think you should stay on the last part a bit longer before looping it to make it clear that the animation finished.

[1] https://github.com/fphilipe/PHFComposeBarView

[2] https://github.com/fphilipe/PHFArrayComparator

[3] https://github.com/fphilipe/PHFRefreshControl