structureing and loading indicator when starting app

lib/app.dart

@@ -1,18 +1,19 @@
 import 'package:flutter/material.dart';
 import 'package:logger/logger.dart';
-import 'package:openmediacentermobile/api/token.dart';
+import 'package:openmediacentermobile/login/login_screen.dart';
-import 'package:openmediacentermobile/login_screen.dart';
 
-import 'logincontext.dart';
+import 'login/logincontext.dart';
 import 'video_feed.dart';
 
-class App extends StatefulWidget {
+// class App extends StatefulWidget {
-  const App({Key? key}) : super(key: key);
+//   const App({Key? key}) : super(key: key);
-  @override
+//   @override
-  State<StatefulWidget> createState() => AppState();
+//   State<StatefulWidget> createState() => AppState();
-}
+// }
+
+class App extends StatelessWidget {
+  const App({Key? key}) : super(key: key);
 
-class AppState extends State<App> {
   @override
   Widget build(BuildContext context) {
     var loginctx = LoginContext.of(context);
@@ -44,19 +45,4 @@ class AppState extends State<App> {
               body: VideoFeed()));
     }
   }
-
-  @override
-  void initState() {
-    final token = Token.getInstance();
-    token.getToken().then((value) {
-      // todo this context call might occur before app rendered correctly!
-      final loginctx = LoginContext.of(context);
-      Logger().i("The token value is $value");
-      if (value != null && value != "") {
-        loginctx.onLoggin(false);
-      } else {
-        loginctx.onLoggin(true);
-      }
-    });
-  }
 }

lib/login/logincontext.dart

@@ -1,4 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:logger/logger.dart';
+
+import '../api/token.dart';
 
 class LoginContainer extends StatefulWidget {
   const LoginContainer({Key? key, required this.child}) : super(key: key);
@@ -10,12 +13,40 @@ class LoginContainer extends StatefulWidget {
 
 class _LoginContainerState extends State<LoginContainer> {
   bool loggedIn = false;
+  bool loading = true;
+
+  @override
+  void initState() {
+    // TODO: implement initState
+    super.initState();
+
+    final token = Token.getInstance();
+    token.getToken().then((value) {
+      // todo this context call might occur before app rendered correctly!
+      Logger().i("The token value is $value");
+      if (value != null && value != "") {
+        setState(() {
+          loggedIn = true;
+          loading = false;
+        });
+      } else {
+        setState(() {
+          loggedIn = false;
+          loading = false;
+        });
+      }
+    });
+  }
 
   @override
   Widget build(BuildContext context) {
     return LoginContext(
       LoggedIn: loggedIn,
-      child: widget.child,
+      child: loading
+          ? const MaterialApp(
+              home: Center(child: CircularProgressIndicator()),
+            )
+          : widget.child,
       onLoggin: (bool login) {
         if (loggedIn != login) {
           setState(() {
@@ -38,10 +69,6 @@ class LoginContext extends InheritedWidget {
   final bool LoggedIn;
   final void Function(bool) onLoggin;
 
-  setLoggedIn(bool login) {
-    onLoggin(login);
-  }
-
   static LoginContext of(BuildContext context) {
     final LoginContext? result =
         context.dependOnInheritedWidgetOfExactType<LoginContext>();

lib/main.dart

@@ -1,7 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:logger/logger.dart';
 import 'package:openmediacentermobile/app.dart';
-import 'package:openmediacentermobile/logincontext.dart';
+
+import 'login/logincontext.dart';
 
 // main app entry point
 void main() {

pubspec.lock

@@ -239,5 +239,5 @@ packages:
     source: hosted
     version: "2.1.1"
 sdks:
-  dart: ">=2.16.0-85.0.dev <3.0.0"
+  dart: ">=2.15.0 <3.0.0"
   flutter: ">=2.0.0"