Best way to change a standard flutter widget-CodePudding

In my app I would like to make the suffixText property of the InputDecoration of a TextFormField always visible (not just when the field is not empty or when it is focused). I took a look at the flutter code and it is a 1-line change on the input_decorator.dart file. This file is used by text_field.dart which is used by text_form_field.dart. Of course I know that I could copy-paste all that 3 files in my project with my 1-line change. But is this the best option? There are several drawbacks:

If the flutter team updates those files (e.g. because of a bug), I have to patch them manually every time by copy-pasting
I have to add 6k lines of code to my project
I'm not sure if I can even copy-paste that code to my project because of the terms of the license

All of this for a 1-line change. Please tell me that there are better way of achieving this result. Thanks in advance!

CodePudding user response：

Based on the highest score answer from this question, you can do something like this to have a permanent suffix, I've tried on DartPad and it works:

TextFormField(
  decoration: const InputDecoration(
    suffixIcon: Text('permanent suffix'),
    suffixIconConstraints: BoxConstraints(minWidth: 0, minHeight: 0),
  ))