How to Validate Email in Flutter Textfield?

In Flutter, you can validate an email entered in a TextField by using regular expressions and the TextEditingController class. By creating a TextEditingController to handle the input, you can define a validator function that checks the email format using a regular expression pattern. The validator property of the TextField widget is then used to trigger the validation and display appropriate error messages if the input is empty or does not match the email pattern. It's important to note that this method validates the email format but does not guarantee the existence or validity of the email address in real life. Flutter textfield tutorials: https://letmeflutter.com/category/flutter-app-development/widgets-articles/flutter-textfield/