Mobile Deep Learning with TensorFlow Lite, ML Kit and Flutter

Adding authentication in SignupSigninScreen

In this section, we will add Firebase authentication inside SignupSigninScreen.

We define a _signinSignup() method in the signup_signin_screen.dart file. The method is called when the sign-in button is pressed. The body of the method appears as follows:

 void _signinSignup() async {   setState(() {     _loading = true;   });     String userId = "";            if (_formMode == FormMode.SIGNIN) {         userId = await widget.auth.signIn(_usermail, _userpassword);       } else {         userId = await widget.auth.signUp(_usermail, _userpassword);       }       setState(() {         _loading = false;       });       if (userId.length > 0 && userId != null && _formMode == FormMode.SIGNIN) {         widget.onSignedIn();       }}

In the preceding method, we begin by setting the value of