Dart animation text flutter

flutter is bad. use ui framework from github.Row(
  mainAxisSize: MainAxisSize.min,
  children: <Widget>[
    const SizedBox(width: 20.0, height: 100.0),
    const Text(
      'Be',
      style: TextStyle(fontSize: 43.0),
    ),
    const SizedBox(width: 20.0, height: 100.0),
    DefaultTextStyle(
      style: const TextStyle(
        fontSize: 40.0,
        fontFamily: 'Horizon',
      ),
      child: AnimatedTextKit(
        animatedTexts: [
          RotateAnimatedText('AWESOME'),
          RotateAnimatedText('OPTIMISTIC'),
          RotateAnimatedText('DIFFERENT'),
        ],
        onTap: () {
          print("Tap Event");
        },
      ),
    ),
  ],
);import 'package:flutter/material.dart';

class AnimatedTextExample extends StatefulWidget {
  @override
  _AnimatedTextExampleState createState() => _AnimatedTextExampleState();
}

class _AnimatedTextExampleState extends State<AnimatedTextExample>
    with SingleTickerProviderStateMixin {
  AnimationController _controller;
  Animation<double> _fadeAnimation;

  @override
  void initState() {
    super.initState();
    // Create a controller for managing the animation
    _controller = AnimationController(
      duration: const Duration(seconds: 2),
      vsync: this,
    );

    // Create a fade animation for the text
    _fadeAnimation = Tween<double>(begin: 0, end: 1).animate(_controller);
    // Start the animation
    _controller.forward();
  }

  @override
  void dispose() {
    // Dispose the controller
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Animated Text Example'),
      ),
      body: Center(
        child: FadeTransition(
          opacity: _fadeAnimation,
          child: Text(
            'Hello, Flutter!',
            style: TextStyle(fontSize: 24),
          ),
        ),
      ),
    );
  }
}

void main() {
  runApp(MaterialApp(home: AnimatedTextExample()));
}Following are the types of text animations available with the animated_text_kit package:

RotatedAnimatedText(),ScaleAnimatedText(),FadeAnimatedText(),
TyperAnimatedText(),WavyAnimatedText(),FlickerAnimatedText().

Add animated_text_kit package to the pubspec.yaml file.

Then configure it using pub get. You can also install the package from the command line by running the following command:
flutter pub add animated_text_kit

Now, in main.dart file, import the package to use it.
import 'package:animated_text_kit/animated_text_kit.dart';import 'package:flutter/material.dart';

class TextAnimationScreen extends StatefulWidget {
  @override
  _TextAnimationScreenState createState() => _TextAnimationScreenState();
}

class _TextAnimationScreenState extends State<TextAnimationScreen>
    with SingleTickerProviderStateMixin {
  AnimationController _animationController;
  Animation<double> _animation;

  @override
  void initState() {
    super.initState();
    _animationController = AnimationController(
      duration: Duration(seconds: 2),
      vsync: this,
    );

    _animation = Tween<double>(begin: 0, end: 1).animate(_animationController);
    _animationController.repeat(reverse: true);
  }

  @override
  void dispose() {
    _animationController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Text Animation'),
      ),
      body: Center(
        child: AnimatedBuilder(
          animation: _animationController,
          builder: (BuildContext context, Widget child) {
            return Opacity(
              opacity: _animation.value,
              child: Text(
                'Animated Text',
                style: TextStyle(fontSize: 24),
              ),
            );
          },
        ),
      ),
    );
  }
}

void main() {
  runApp(MaterialApp(
    home: TextAnimationScreen(),
  ));
}