I use OAuth to let users sign in to the android app via Google account. When the user taps the Google login button for the first time, it produces a dialog to choose the acc
I found this question while searching for a solution using the javascript client, but it might be similar with Android.
signIn({ prompt: 'select_account' })
select_account
The authorization server prompts the user to select a Google account. This allows a user who has multiple accounts to select amongst the multiple accounts that they may have current sessions for.
See https://developers.google.com/identity/sign-in/web/reference#googleauthsigninoptions.