problem with expansion panel in recyclerview

[akshaykondekar]

I was trying to use expansion panel in recyclerview, and done with getting result from api but if result having 7 or 8 items its showing perfectly but list having 50 and more item then its getting more time and showing black screen also doesn't showing list after taking more time to build. layout design in below image, please check this

[chanicheetah]

any answer on this?

[akshaykondekar]

not find solution yet. but i'm still working on it as soon as i get any solution i will update here.

[bhavin1994]

In my case It's open very slow like leggy when even in 1 item but many in parent