Thought someone might find this useful in case you need to show a list partially and allow the user to see more items from the top of the list when needed.
It’s the initial version I created but it looks to be displaying pretty smoothly. If you happen to have anything better do let me know.
Here’s a similar demo with a much better ux albeit higher code complexity. Tests show it works decently on both iOS and Android.
http://codepen.io/zarko/full/oXOoXq/ (ver 2.0)
http://codepen.io/zarko/full/rVEqGR/ (ver 3.0)
http://codepen.io/zarko/full/BoyLQP/ (ver 4.0)
how to use this as an injector? 
Nice