I followed the documentation to use FirebaseUI in my Android application: https://firebase.google.com/docs/auth/android/firebaseui - their screenshot shows a bunch of buttons to log-in, one per provider.
I assume that all these buttons are shown because several providers have been used in their sources (cf. their part "Sign in"). In my application, only one provider is used and I have no button. Instead, a Google popup is shown in the device, asking the user for connection.
But I would prefer that user clicks on a Google button, and then the popup would be shown.
Is it possible to show this FirebaseUI button (in other words: I don't want to create my own button, customize it to make it feel as the button on the screenshot of the documentation, add click listener on it, etc.)?