Scroll View #74

Feature request

Hi. First of all thank you for the lib, it's really awesome. I'm having some problems trying to make the bottom sheet to respond based on the size of the content. My bottom sheet needs to have a fixed input on the bottom and 2 positions - 50% and 90%. On 50% the bottom sheet needs to be pushed when the keyboard appears and on 90% the content of my flat list needs to be pushed up and scrolled to the last item visible. Is possible to achieve this?

Steps To Achieve

1. On 50% - bottom sheet needs to be pushed up until the max size(90%)
2. on 90% - the flat list inside needs to be pushed up