Cell size changed after reload data and content offset not set to initial postion

[bhaveshbc]

HI @V8tr Thanks for your demo
I encounter a problem when I set

cell.maxWidth = collectionView.bounds.width/2

it works nicely for the initial load. but when I reload the collectionView
collectionView.reloadData()

there are two problems that Occur

1. cell size changed and not set properly
2. content offset not set to initial position(the position before reload)