in build-android-start/app/src/main/java/com/google/firebase/codelab/friendlychat/SignInActivity.kt [37:47]
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
// This codelab uses View Binding
// See: https://developer.android.com/topic/libraries/view-binding
binding = ActivitySignInBinding.inflate(layoutInflater)
setContentView(binding.root)
// Initialize FirebaseAuth
// TODO: implement
}