How To Limit Text Characters In Text Field Input Using Flutter App

import 'package:flutter/material.dart';

void main(){
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  TextEditingController _textFieldController = TextEditingController();
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.lightGreen[700],
        title: Text('Limit Text Characters'),
      ),
      body: Center(
        child: Padding(
          padding: EdgeInsets.symmetric(horizontal: 25.0),
          child: TextField(
            controller: _textFieldController,
            maxLength: 10,
            maxLengthEnforced: true,
            decoration: InputDecoration(
                enabledBorder: OutlineInputBorder(
                  borderRadius: BorderRadius.all(Radius.circular(12.0)),
                  borderSide: BorderSide(color: Colors.black26),
                ),
                focusedBorder: OutlineInputBorder(
                  borderRadius: BorderRadius.all(Radius.circular(12.0)),
                  borderSide: BorderSide(color: Colors.grey),
                ),
                contentPadding: EdgeInsets.all(15),
                hintText: "you can only enter 15 characters here",
              hintStyle: TextStyle(fontSize: 12,color: Colors.black45),
            ),),
        ),
      ),
    );
  }
}