added radial menu animation

lib/Screens/practice2.dart

@@ -0,0 +1,115 @@
+// ignore_for_file: public_member_api_docs, sort_constructors_first
+import 'dart:math';
+import 'package:flutter/material.dart';
+import 'package:vector_math/vector_math_64.dart' show radians;
+
+class Practice2 extends StatefulWidget {
+  final String title;
+  const Practice2({
+    Key? key,
+    required this.title,
+  }) : super(key: key);
+
+  @override
+  State<Practice2> createState() => _Practice2State();
+}
+
+class _Practice2State extends State<Practice2>
+    with SingleTickerProviderStateMixin {
+  late AnimationController controller;
+
+  @override
+  void initState() {
+    super.initState();
+    controller =
+        AnimationController(vsync: this, duration: Duration(milliseconds: 700));
+    // ..forward();
+  }
+
+  @override
+  void dispose() {
+    controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    List angles = List.generate(6, (index) => index * 360 / 6);
+
+    return Scaffold(
+      appBar: AppBar(title: Text(widget.title)),
+      body: Center(
+          child: RotationTransition(
+        turns: Tween<double>(begin: 0, end: 0.3).animate(controller),
+        child: Stack(
+          children: [
+            Btn(const Icon(Icons.call), 100, angles.removeAt(0), controller),
+            Btn(const Icon(Icons.ac_unit_sharp), 100, angles.removeAt(0),
+                controller),
+            Btn(const Icon(Icons.access_time_filled_rounded), 100,
+                angles.removeAt(0), controller),
+            Btn(const Icon(Icons.account_balance), 100, angles.removeAt(0),
+                controller),
+            Btn(const Icon(Icons.add_a_photo), 100, angles.removeAt(0),
+                controller),
+            Btn(const Icon(Icons.adb), 100, angles.removeAt(0), controller),
+            Btn(const Icon(Icons.close), 0, 0, controller),
+            InkWell(
+                onTap: () {
+                  if (controller.isCompleted) {
+                    controller.reverse();
+                  } else {
+                    controller.forward();
+                  }
+                },
+                child: IgnorePointer(
+                    child: ScaleTransition(
+                        scale:
+                            Tween<double>(begin: 1, end: 0).animate(controller),
+                        child: Btn(
+                            const Icon(Icons.open_with), 0, 0, controller)))),
+          ],
+        ),
+      )),
+    );
+  }
+}
+
+class Btn extends StatefulWidget {
+  final Widget icon;
+  final double radius;
+  final double angle;
+  final AnimationController controller;
+
+  const Btn(this.icon, this.radius, this.angle, this.controller);
+
+  @override
+  State<Btn> createState() => _BtnState();
+}
+
+class _BtnState extends State<Btn> {
+  @override
+  Widget build(BuildContext context) {
+    late Animation<Offset> animation = Tween<Offset>(
+            begin: Offset(0, 0),
+            end: Offset(widget.radius * cos(radians(widget.angle)),
+                widget.radius * sin(radians(widget.angle))))
+        .animate(CurvedAnimation(
+            parent: widget.controller,
+            curve: const Interval(0, 0.7, curve: Curves.easeOut)));
+
+    return AnimatedBuilder(
+      animation: widget.controller,
+      builder: (context, child) => Transform.translate(
+        offset: animation.value,
+        child: IconButton(
+          onPressed: () {},
+          icon: widget.icon,
+          style: const ButtonStyle(
+              backgroundColor: MaterialStatePropertyAll(Colors.red),
+              iconColor: MaterialStatePropertyAll(Colors.white)),
+        ),
+      ),
+    );
+  }
+}

lib/main.dart

@@ -9,6 +9,7 @@ import 'package:animations/Screens/lecture6.dart';
 import 'package:animations/Screens/lecture8.dart';
 import 'package:animations/Screens/lecture9.dart';
 import 'package:animations/Screens/practice1.dart';
+import 'package:animations/Screens/practice2.dart';
 import 'package:flutter/material.dart';
 
 import 'Screens/lecture1.dart';
@@ -50,7 +51,8 @@ class MyApp extends StatelessWidget {
         'lec8/': (context) => const Lecture8(title: "3D Drawer"),
         'lec9/': (context) => const Lecture9(
               title: "Animated Prompt",
-            )
+            ),
+        'practice2/': (context) => const Practice2(title: "Radial Menu"),
       },
     );
   }
@@ -93,6 +95,7 @@ class _MyHomePageState extends State<MyHomePage> {
             Link(link: 'lec7/', title: "CustomPainter & Polygons"),
             Link(link: 'lec8/', title: "3D Drawer"),
             Link(link: 'lec9/', title: "Animated Prompt"),
+            Link(link: 'practice2/', title: "Radial Menu")
           ],
         ),
       ),