MWClash/lib/widgets/effect.dart

import 'dart:ui';

import 'package:flutter/material.dart';

class EffectGestureDetector extends StatefulWidget {
  final Widget child;
  final GestureLongPressCallback? onLongPress;
  final GestureTapCallback? onTap;

  const EffectGestureDetector({
    super.key,
    required this.child,
    this.onLongPress,
    this.onTap,
  });

  @override
  State<EffectGestureDetector> createState() => _EffectGestureDetectorState();
}

class _EffectGestureDetectorState extends State<EffectGestureDetector>
    with SingleTickerProviderStateMixin {
  late AnimationController _controller;
  double _scale = 1;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(vsync: this);
  }

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

  @override
  Widget build(BuildContext context) {
    return AnimatedScale(
      scale: _scale,
      duration: kThemeAnimationDuration,
      curve: Curves.easeOut,
      child: GestureDetector(
        onLongPress: widget.onLongPress,
        onLongPressStart: (_) {
          setState(() {
            _scale = 0.95;
          });
        },
        onTap: widget.onTap,
        onLongPressEnd: (_) {
          setState(() {
            _scale = 1;
          });
        },
        child: widget.child,
      ),
    );
  }
}

Widget proxyDecorator(
  Widget child,
  int index,
  Animation<double> animation,
) {
  return AnimatedBuilder(
    animation: animation,
    builder: (_, Widget? child) {
      final double animValue = Curves.easeInOut.transform(animation.value);
      final double scale = lerpDouble(1, 1.02, animValue)!;
      return Transform.scale(
        scale: scale,
        child: child,
      );
    },
    child: child,
  );
}