Android studio 3.1 XML preview not showing for some XML layouts

Question

Some layouts are shown, some just have blank, gray frame. I can\'t seem to find a correlation between XML layouts that work and those that do not, there is a mixture of use

Answer 1

If you unable to see 'preview' with eye icon on the right of the xml text. You have to enable preview from the view. Follow this:- View -> Tool Windows -> Preview