adding packages

deprecated/floating_search_bar/example/lib/main.dart

@@ -0,0 +1,68 @@
+import 'package:flutter/material.dart';
+
+import 'package:floating_search_bar/floating_search_bar.dart';
+
+import 'dart:io' show Platform;
+import 'package:flutter/foundation.dart';
+
+// The existing imports
+// !! Keep your existing impots here !!
+
+/// main is entry point of Flutter application
+void main() {
+  // Desktop platforms aren't a valid platform.
+  if (!kIsWeb) _setTargetPlatformForDesktop();
+  return runApp(MyApp());
+}
+
+/// If the current platform is desktop, override the default platform to
+/// a supported platform (iOS for macOS, Android for Linux and Windows).
+/// Otherwise, do nothing.
+void _setTargetPlatformForDesktop() {
+  TargetPlatform targetPlatform;
+  if (Platform.isMacOS) {
+    targetPlatform = TargetPlatform.iOS;
+  } else if (Platform.isLinux || Platform.isWindows) {
+    targetPlatform = TargetPlatform.android;
+  }
+  if (targetPlatform != null) {
+    debugDefaultTargetPlatformOverride = targetPlatform;
+  }
+}
+
+class MyApp extends StatefulWidget {
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      debugShowCheckedModeBanner: false,
+      theme: ThemeData.light(),
+      darkTheme: ThemeData.dark(),
+      home: FloatingSearchBar.builder(
+        pinned: true,
+        itemCount: 100,
+        padding: EdgeInsets.only(top: 10.0),
+        itemBuilder: (BuildContext context, int index) {
+          return ListTile(
+            leading: Text(index.toString()),
+          );
+        },
+        leading: CircleAvatar(
+          child: Text("RD"),
+        ),
+        endDrawer: Drawer(
+          child: Container(),
+        ),
+        onChanged: (String value) {},
+        onTap: () {},
+        decoration: InputDecoration.collapsed(
+          hintText: "Search...",
+        ),
+      ),
+    );
+  }
+}