rotation vinil

main.dart

import 'package:flutter/material.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark().copyWith(
        scaffoldBackgroundColor: darkBlue,
      ),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(
          title: Text('Demo'),
        ),
        body: SplashPage(),
      ),
    );
  }
}

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

  @override
  State<SplashPage> createState() => _SplashPageState();
}

class _SplashPageState extends State<SplashPage>
    with SingleTickerProviderStateMixin {
  late final AnimationController _animationController;
  final bool _isRotated = false;

  @override
  void initState() {
    _animationController = AnimationController(
      vsync: this,
      duration: const Duration(seconds: 15),
    )..repeat();

    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      width: 300,
      height: 300,
      child: Stack(
        children: [
          ClipOval(
            child: RotationTransition(
              turns: Tween(begin: 0.0, end: 4.0).animate(_animationController),
              child: Container(
                decoration: const BoxDecoration(
                  gradient: LinearGradient(
                      colors: [
                        Color(0xFF212657),
                        Color(0xFF28346D),
                        Color(0xFF33498E),
                        Color(0xFF3A56A1),
                        Color(0xFF3D5BA9),
                        Color(0xFF405AA7),
                        Color(0xFF7D538B),
                        Color(0xFFAE4E74),
                        Color(0xFFD14A64),
                        Color(0xFFE7475A),
                        Color(0xFFEF4757),
                      ],
                      begin: Alignment.topLeft,
                      end: Alignment.bottomRight,
                      stops: [
                        0.02,
                        0.11,
                        0.28,
                        0.41,
                        0.5,
                        0.52,
                        0.73,
                        0.82,
                        0.92,
                        0.95,
                        1
                      ]),
                ),
              ),
            ),
          ),

          // ...others widgets
        ],
      ),
    );
  }
}