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lib/widgets/tap_bounce.dart

@@ -0,0 +1,60 @@
+import 'package:flutter/material.dart';
+
+/// Envolve [child] com um efeito de "aperto" ao toque: encolhe levemente
+/// no pointer-down e volta ao tamanho normal com uma pequena mola ao soltar.
+///
+/// Usa [Listener] (eventos de ponteiro puros) em vez de [GestureDetector]
+/// para não competir na arena de gestos com um `InkWell`/`Button` filho —
+/// o toque real continua a ser tratado pelo widget interno normalmente.
+class TapBounce extends StatefulWidget {
+  const TapBounce({
+    super.key,
+    required this.child,
+    this.scale = 0.94,
+    this.duration = const Duration(milliseconds: 110),
+  });
+
+  final Widget child;
+  final double scale;
+  final Duration duration;
+
+  @override
+  State<TapBounce> createState() => _TapBounceState();
+}
+
+class _TapBounceState extends State<TapBounce>
+    with SingleTickerProviderStateMixin {
+  late final AnimationController _controller = AnimationController(
+    vsync: this,
+    duration: widget.duration,
+  );
+  late final Animation<double> _scale = Tween<double>(
+    begin: 1.0,
+    end: widget.scale,
+  ).animate(CurvedAnimation(parent: _controller, curve: Curves.easeOut));
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  void _press(PointerDownEvent _) => _controller.forward();
+
+  void _release([PointerEvent? _]) => _controller.reverse();
+
+  @override
+  Widget build(BuildContext context) {
+    return Listener(
+      onPointerDown: _press,
+      onPointerUp: _release,
+      onPointerCancel: _release,
+      child: AnimatedBuilder(
+        animation: _scale,
+        builder: (context, child) =>
+            Transform.scale(scale: _scale.value, child: child),
+        child: widget.child,
+      ),
+    );
+  }
+}