Flutter中的文本有水平淡入功能吗？

import 'package:flutter/material.dart';

class FadeInText extends StatefulWidget {
  @override
  _FadeInTextState createState() => _FadeInTextState();
}

class _FadeInTextState extends State<FadeInText>
    with SingleTickerProviderStateMixin {
  AnimationController _controller;
  Animation<double> _opacityAnimation;
  Animation<Offset> _slideAnimation;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(
      duration: const Duration(milliseconds: 500),
      vsync: this,
    );

    _opacityAnimation = Tween<double>(begin: 0.0, end: 1.0).animate(
      CurvedAnimation(
        parent: _controller,
        curve: Curves.easeIn,
      ),
    );

    _slideAnimation = Tween<Offset>(
      begin: const Offset(-1.0, 0.0),
      end: const Offset(0.0, 0.0),
    ).animate(
      CurvedAnimation(
        parent: _controller,
        curve: Curves.easeIn,
      ),
    );

    _controller.forward();
  }

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

  @override
  Widget build(BuildContext context) {
    return SlideTransition(
      position: _slideAnimation,
      child: FadeTransition(
        opacity: _opacityAnimation,
        child: Text(
          'Hello, Flutter!',
          style: TextStyle(fontSize: 24.0),
        ),
      ),
    );
  }
}

// 使用示例
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Fade In Text'),
        ),
        body: Center(
          child: FadeInText(),
        ),
      ),
    );
  }
}