implementation of listwheelscrollview widget (#65)

using_listwheelscrollview/lib/roundcontainer.dart

@@ -0,0 +1,43 @@
+import 'package:flutter/material.dart';
+
+class NewWidget extends StatelessWidget {
+  final Widget l;
+  final String s;
+  double radius = 8;
+  NewWidget({this.size, this.l, this.s});
+  final double size;
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedContainer(
+      duration: Duration(milliseconds: 1000),
+      curve: Curves.elasticInOut,
+      margin: EdgeInsets.symmetric(horizontal: 70, vertical: 20),
+      decoration: BoxDecoration(
+        color: Colors.black12,
+        borderRadius: BorderRadius.circular(20.0),
+        boxShadow: [
+          BoxShadow(
+            offset: Offset(5, 5),
+            blurRadius: radius,
+            color: Color(0XFF585858).withOpacity(.3),
+//            color: Color(0XFF383838).withOpacity(.4),
+          ),
+        ],
+      ),
+      child: Center(
+        child: ListTile(
+          contentPadding: EdgeInsets.symmetric(horizontal: 25),
+          leading: l,
+          trailing: Text(
+            s,
+            style: TextStyle(
+                fontSize: 21,
+                color: Colors.white54,
+                fontWeight: FontWeight.w200),
+          ),
+        ),
+      ),
+    );
+  }
+}