Best way to save form input in flutter as the user types in

Question

This is an open question for the best practices and experiences with creating forms in flutter. I didn't find a lot of material online, other than basic username and password form.

I was trying to create a screen in flutter that receives user input which is String and double inputs (32 inputs). I have to validate data to make sure numbers are within range, then do calculations and create a detailed PDF report.

My plan was to create a class say InputData where I can store all user inputs, and in my inputScreen create a Form widget with TextFormField s to receive and validate inputs

Expanded MyCustomTextFormField(String labelText, TextInputType textInputType) {
  return Expanded(
        child: TextFormField(
          keyboardType: textInputType,
          maxLines: 2,
          minLines: 1,
          decoration: InputDecoration(
            border: OutlineInputBorder(),
            labelText: labelText,
          ),
        ),
      );
}

How can I store all input data in one InputData class I created as the user types in, and how would I store it on the phone as the user types as well.

Any ideas!

Answer 1

What do you think about using textEditingController?