Flutter:使用TweenAnimationBuilder实现延迟动画

import 'package:flutter/material.dart';

class DelayedAnimation extends StatefulWidget {
  @override
  _DelayedAnimationState createState() => _DelayedAnimationState();
}

class _DelayedAnimationState extends State<DelayedAnimation>
    with SingleTickerProviderStateMixin {
  AnimationController _controller;
  Animation<double> _animation;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(
      duration: Duration(milliseconds: 1000),
      vsync: this,
    );
    _animation = Tween<double>(begin: 0, end: 1).animate(
      CurvedAnimation(
        parent: _controller,
        curve: Curves.easeInOut,
      ),
    );
    _controller.forward();
  }

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

  @override
  Widget build(BuildContext context) {
    return FadeTransition(
      opacity: _animation,
      child: YourWidget(), // 替换为你想要实现延迟动画的组件
    );
  }
}

DelayedAnimation(),