How to use created variables in every class?

Question

I have a Widget where the user can input data like height, weight and so on in a TextFormField like this:

String weightText;


TextFormField(
                      initialValue: null,
                      keyboardType: TextInputType.number,
                      onChanged: (value) => weightText = value,
                    ),

Now I want to use this variable weightText in other classes. Is there another way except constructor to make the variable weightText global, so I can use it wherever i want?

Answer 1

You must declare the variable as static in a static class. This way you can access it like this Class.variable

You can create a class like this :

class Global{
    static String weightText;
}

and then access the variable like this Global.weightText