scrollToIndex error

[supagu]

I am getting an error when I press on a letter on the right to scroll to it:

scrollToIndex should be used in conjunction with getItemLayout or onScrollToIndexFailed, otherwise there is no way to know the location of offscreen indices or handle failures.

[helloeyesimple]

@supagu
Workaround for this error is adding getItemLayout props
Reference: https://medium.com/@jsoendermann/sectionlist-and-getitemlayout-2293b0b916fb