play lottie after loaded the lottie widget

 import 'package:flutter/material.dart';

import 'lottie/lottie.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Benny'),
      debugShowCheckedModeBanner: false,
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> with TickerProviderStateMixin {
  late AnimationController _lottieAnimationController;

  @override
  void initState() {
    super.initState();

    _lottieAnimationController = AnimationController(vsync: this);

    _lottieAnimationController.addStatusListener((status) {
      if(status == AnimationStatus.completed) {
        
      }


    });
  }




  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(

      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [Lottie.asset('assets/bennytext.json',
              controller: _lottieAnimationController,
              onLoaded: (composition) {
                _lottieAnimationController.duration = composition.duration;
                Future.delayed(const Duration(milliseconds: 100), () {

                  setState(() {
                    _lottieAnimationController.forward();
                  });
                });

              }
              )
          ],
        ),
      ),
    );
  }
}