android - google sign in with fresh account not working | exiting sign in intent -

i have followed every single step mentioned on google doc (https://developers.google.com/identity/sign-in/android/start-integrating) integrating google sign in every time tried use service getting following errors

1. fresh account: able add new account while coming google account creation app google intent exit , forced click google sign in again work expected

2. choose google account sign in activity exit , when click sign in button again time app automatically sign in ... no account chooser

3. googleplayserviceavaialblity exception : in phone getting exception don't know how handle ...

any appreciated