create FloatingAnimatedButton

Author: AhmedAbdoElhawary

lib/features/base/view/movable_animated_button.dart

@@ -0,0 +1,91 @@
+import 'dart:math';
+
+import 'package:flutter/material.dart';
+
+class FloatingAnimatedButton extends StatefulWidget {
+  final Widget child;
+  final Duration stepDuration;
+
+  const FloatingAnimatedButton({
+    super.key,
+    required this.child,
+    this.stepDuration = const Duration(seconds: 3),
+  });
+
+  @override
+  State<FloatingAnimatedButton> createState() => _FloatingAnimatedButtonState();
+}
+
+class _FloatingAnimatedButtonState extends State<FloatingAnimatedButton> with SingleTickerProviderStateMixin {
+  late AnimationController _controller;
+  late Animation<double> _scale;
+  late Animation<Offset> _offset;
+
+  final Random _random = Random();
+  double _currentScale = 1.0;
+  Offset _currentOffset = Offset.zero;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _controller = AnimationController(vsync: this);
+
+    _setNewRandomAnimation();
+
+    // when one random animation finishes → schedule the next one
+    _controller.addStatusListener((status) {
+      if (status == AnimationStatus.completed) {
+        _currentScale = _scale.value;
+        _currentOffset = _offset.value;
+        _setNewRandomAnimation();
+      }
+    });
+  }
+
+  void _setNewRandomAnimation() {
+    // generate new random target scale and offset
+    final newScale = 0.95 + _random.nextDouble() * 0.1;
+    final newOffset = Offset(
+      (_random.nextDouble() * 40 - 35) / 100,
+      (_random.nextDouble() * 40 - 35) / 100,
+    );
+
+    _scale = Tween<double>(
+      begin: _currentScale,
+      end: newScale,
+    ).animate(CurvedAnimation(parent: _controller, curve: Curves.easeInOut));
+
+    _offset = Tween<Offset>(
+      begin: _currentOffset,
+      end: newOffset,
+    ).animate(CurvedAnimation(parent: _controller, curve: Curves.easeInOut));
+
+    _controller.duration = widget.stepDuration + Duration(milliseconds: _random.nextInt(2000));
+
+    _controller.reset();
+    _controller.forward();
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedBuilder(
+      animation: _controller,
+      builder: (_, __) {
+        return Transform.translate(
+          offset: _offset.value * 25,
+          child: Transform.scale(
+            scale: _scale.value,
+            child: widget.child,
+          ),
+        );
+      },
+    );
+  }
+}