There will be three rounds initially
1st with a junior developer, who will ask you android interview questions from blogs
2nd round will be with the lead, he is mature and more interested in your previous work and will ask questions on android architecture and which new technologies you can add, oops concepts, and healthy conversation
3rd around will be someone they will ask you why you want to change company, what are practices you're following for ci/cd setup, types of environment, etc .. nothing about the android as such it is up to the person if like you or not .. not happy with this .. they should work on it .. we cannot say everything why we are looking for a change .. if the culture is good, employee are treated well they stay and learn and grow .. by the way, the same person will give you small call before starting/allowing the first rounds of the interview.
the same 3rd around person be more clear when you call the person the said almost the same things on call and he allowed me to go for different rounds of the interview and then rejected at the end .. what a time waste !!
They added one more HR round a day before for me I took off for that and they canceled at the last moment. Please respect everyone's time coming to the interview .. be confident about your culture and tech