Mobile Deep Learning with TensorFlow Lite, ML Kit and Flutter

Creating the main screen

We would also need to determine the authentication status, that is, whether the user was signed in when the application was launched and direct them to the home screen if already signed in. If the user wasn't signed in, SignInSignupScreen should appear first and, after completing the process, the home screen is launched. To implement this, we create a stateful widget, MainScreen, inside a new dart file, main_screen.dart, and perform the following steps:

1. We will begin by defining the enumeration, AuthStatus, which denotes the current authentication status of the user, which can either be signed in or not signed in:

enum AuthStatus { NOT_SIGNED_IN, SIGNED_IN,}

2. Now, we create a variable of the enum type to store the ...