如何根据图像在flutter中创建动态容器

import 'package:flutter/material.dart';

class ImageContainer extends StatefulWidget {
  @override
  _ImageContainerState createState() => _ImageContainerState();
}

class _ImageContainerState extends State<ImageContainer> {
  double _width = 200; // 容器的初始宽度
  double _height = 200; // 容器的初始高度
  double _opacity = 1; // 容器的初始透明度

  // 定义动画时长和曲线
  Duration _duration = Duration(seconds: 1);
  Curve _curve = Curves.easeInOut;

  // 定义方法来改变容器的属性
  void _changeContainer() {
    setState(() {
      _width = 300; // 改变容器的宽度
      _height = 300; // 改变容器的高度
      _opacity = 0.5; // 改变容器的透明度
    });
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        AnimatedContainer(
          duration: _duration,
          curve: _curve,
          width: _width,
          height: _height,
          opacity: _opacity,
          child: Image.asset('assets/image.png'), // 图像资源
        ),
        RaisedButton(
          onPressed: _changeContainer,
          child: Text('改变容器属性'),
        ),
      ],
    );
  }
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('动态容器示例'),
        ),
        body: Center(
          child: ImageContainer(),
        ),
      ),
    );
  }
}