(Create)

Create a Flutter application that uses local storage to store a counter value. Each time a button is pressed, increment the counter and save it. Retrieve and display the counter when the app restarts.

(Create)

Create a Flutter app where a user can navigate from a LoginPage to a DashboardPage after successfully logging in. Display the username on the DashboardPage.

(Code Evaluation)

Analyze the following Flutter code for signing up a user using Firebase Authentication. Identify potential issues and explain each part of the code.

Future<void> signUpUser(String email, String password) async {

  try {

    await FirebaseAuth.instance.createUserWithEmailAndPassword(

      email: email,

      password: password,

    );

    print('User signed up successfully');

  } catch (e) {

    print('Error signing up: $e');

  }

}

(Code Examination)

Examine the following code. Identify potential issues with this approach to reading a JSON file and suggest improvements.

Future<List<String>> loadItems() async {

  final file = File('/storage/emulated/0/items.json');

  final jsonString = await file.readAsString();

  final List<dynamic> items = jsonDecode(jsonString);

  return items.cast<String>();

}