animatedopacity.dart

import 'package:flutter/material.dart';

class AnimatedOpacityWidget extends StatefulWidget {
  const AnimatedOpacityWidget({super.key});

  @override
  State<AnimatedOpacityWidget> createState() => _AnimatedOpacityWidgetState();
}

class _AnimatedOpacityWidgetState extends State<AnimatedOpacityWidget> {
  double opacity = 1.0;
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Widget Name"),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            AnimatedOpacity(
              opacity: opacity,
              duration: const Duration(seconds: 2),
              child: const FlutterLogo(size: 59),
            ),
            ElevatedButton(
              onPressed: (() {
                setState(() {
                  opacity = opacity == 0 ? 1.0 : 0.0;
                });
              }),
              child: const Text(
                'Fade Logo',
                style: TextStyle(color: Colors.black),
              ),
            )
          ],
        ),
      ),
    );
  }
}