Change the button size by passing the parameters in the constructor

I want to change the button width when the user passes the parameter to the constructor, whether they want a full-width button or a normal-width button. However, I have tried to implement it, but the width of the button is not changing.

here's my code:

SmallButtonsElevated.dart

import 'package:flutter/material.dart';

class SmallButtonsElevated extends StatefulWidget {
  final String buttonName;
  final Color color;
  final bool isFullWidth;

  const SmallButtonsElevated({
    required this.buttonName,
    required this.color,
    this.isFullWidth = false,
    Key? key,
  }) : super(key: key);

  @override
  State<SmallButtonsElevated> createState() => _SmallButtonsElevatedState();
}

class _SmallButtonsElevatedState extends State<SmallButtonsElevated> {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Container(
        margin: EdgeInsets.all(16),
        child: ElevatedButton(
          onPressed: () {
            // Handle button press
          },
          style: ElevatedButton.styleFrom(
            backgroundColor: widget.color,
            minimumSize: widget.isFullWidth
                ? const Size(double.infinity, 60)
                : const Size(100, 60),
            shape:
                RoundedRectangleBorder(borderRadius: BorderRadius.circular(5)),
          ),
          child: Text(
            widget.buttonName,
            style: const TextStyle(color: Colors.white),
          ),
        ),
      ),
    );
  }
}

allButtons.dart

import 'package:flutter/material.dart';
import 'package:navbars/Buttons/smallButtons/smallButtonsElevated.dart';

class AllButtonsClass extends StatefulWidget {
  const AllButtonsClass({super.key});

  @override
  State<AllButtonsClass> createState() => _AllButtonsClassState();
}

class _AllButtonsClassState extends State<AllButtonsClass> {
  @override
  Widget build(BuildContext context) {
    List<Widget> functionList = [
      const SmallButtonsElevated(
        buttonName: 'Button',
        color: Colors.redAccent,
      ),
    ];
    return Scaffold(
      body: ListView.builder(
        itemCount: functionList.length,
        itemBuilder: (context, index) {
          return functionList[index];
        },
      ),
    );
  }
}

I tried to pass the parameters in the constructor, but it did not work. The button width remained the same, as if it was set to full width instead of normal width. Can you please help me solve this issue?