Added splash screen example

+import 'dart:async';
+
+import 'package:get/get.dart';
+import 'package:async/async.dart';
+
+class SplashService extends GetxService {
+  final welcomeStr = ['GetX', 'Rules!'];
+  final activeStr = 0.obs;
+
+  final memo = AsyncMemoizer<void>();
+  Future<void> init() {
+    return memo.runOnce(_initFunction);
+  }
+
+  void _changeActiveString() {
+    activeStr.value = (activeStr.value + 1) % welcomeStr.length;
+  }
+
+  Future<void> _initFunction() async {
+    final t = Timer.periodic(
+      Duration(milliseconds: 500),
+      (t) => _changeActiveString(),
+    );
+    //simulate some long running operation
+    await Future.delayed(Duration(seconds: 5));
+    //cancel the timer once we are done
+    t.cancel();
+  }
+}

+import 'package:flutter/material.dart';
+
+import 'package:get/get.dart';
+
+import '../controllers/splash_service.dart';
+
+class SplashView extends GetView<SplashService> {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Center(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Obx(
+              () => Text(
+                controller.welcomeStr[controller.activeStr.value],
+                style: TextStyle(fontSize: 20),
+              ),
+            ),
+            CircularProgressIndicator(),
+          ],
+        ),
+      ),
+    );
+  }
+}

+import 'package:example_nav2/app/modules/splash/controllers/splash_service.dart';
+import 'package:example_nav2/app/modules/splash/views/splash_view.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:get/get.dart';
 
 
@@ -10,10 +12,23 @@ void main() {
       title: "Application",
       title: "Application",
       initialBinding: BindingsBuilder(
       initialBinding: BindingsBuilder(
         () {
         () {
+          Get.put(SplashService());
           Get.put(AuthService());
           Get.put(AuthService());
         },
         },
       ),
       ),
       getPages: AppPages.routes,
       getPages: AppPages.routes,
+      builder: (context, child) {
+        return FutureBuilder<void>(
+          key: ValueKey('initFuture'),
+          future: Get.find<SplashService>().init(),
+          builder: (context, snapshot) {
+            if (snapshot.connectionState == ConnectionState.done) {
+              return child ?? SizedBox.shrink();
+            }
+            return SplashView();
+          },
+        );
+      },
       // routeInformationParser: GetInformationParser(
       // routeInformationParser: GetInformationParser(
       //     // initialRoute: Routes.HOME,
       //     // initialRoute: Routes.HOME,
       //     ),
       //     ),