Add ensureScreenSize to ScreenUtilInit constructor

@@ -12,6 +12,7 @@ class MyApp extends StatelessWidget {
     // In first method you only need to wrap [MaterialApp] with [ScreenUtilInit] and that's it
     // In first method you only need to wrap [MaterialApp] with [ScreenUtilInit] and that's it
     return ScreenUtilInit(
     return ScreenUtilInit(
       responsiveWidgets: responsiveWidgets,
       responsiveWidgets: responsiveWidgets,
+      ensureScreenSize: true,
       child: MaterialApp(
       child: MaterialApp(
         debugShowCheckedModeBanner: false,
         debugShowCheckedModeBanner: false,
         title: 'First Method',
         title: 'First Method',

+import 'dart:async';
 import 'dart:collection';
 import 'dart:collection';
 
 
 import 'package:flutter/widgets.dart';
 import 'package:flutter/widgets.dart';
@@ -99,12 +100,14 @@ class _ScreenUtilInitState extends State<ScreenUtilInit>
   final _canMarkedToBuild = HashSet<String>();
   final _canMarkedToBuild = HashSet<String>();
   MediaQueryData? _mediaQueryData;
   MediaQueryData? _mediaQueryData;
   final _binding = WidgetsBinding.instance;
   final _binding = WidgetsBinding.instance;
+  final _screenSizeCompleter = Completer<void>();
 
 
   @override
   @override
   void initState() {
   void initState() {
     if (widget.responsiveWidgets != null) {
     if (widget.responsiveWidgets != null) {
       _canMarkedToBuild.addAll(widget.responsiveWidgets!);
       _canMarkedToBuild.addAll(widget.responsiveWidgets!);
     }
     }
+    _validateSize().then(_screenSizeCompleter.complete);
 
 
     super.initState();
     super.initState();
     _binding.addObserver(this);
     _binding.addObserver(this);
@@ -129,6 +132,10 @@ class _ScreenUtilInitState extends State<ScreenUtilInit>
     return mq;
     return mq;
   }
   }
 
 
+  Future<void> _validateSize() async {
+    if (widget.ensureScreenSize ?? false) return ScreenUtil.ensureScreenSize();
+  }
+
   void _markNeedsBuildIfAllowed(Element el) {
   void _markNeedsBuildIfAllowed(Element el) {
     final widgetName = el.widget.runtimeType.toString();
     final widgetName = el.widget.runtimeType.toString();
     final allowed = widget is SU ||
     final allowed = widget is SU ||
@@ -162,20 +169,28 @@ class _ScreenUtilInitState extends State<ScreenUtilInit>
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
     final mq = _mediaQueryData;
     final mq = _mediaQueryData;
 
 
-    if (mq == null) return SizedBox.shrink();
+    if (mq == null) return const SizedBox.shrink();
 
 
+    return FutureBuilder<void>(
+      future: _screenSizeCompleter.future,
+      builder: (c, snapshot) {
         ScreenUtil.configure(
         ScreenUtil.configure(
           data: mq,
           data: mq,
           designSize: widget.designSize,
           designSize: widget.designSize,
           splitScreenMode: widget.splitScreenMode,
           splitScreenMode: widget.splitScreenMode,
           minTextAdapt: widget.minTextAdapt,
           minTextAdapt: widget.minTextAdapt,
-      ensureScreenHasSize: widget.ensureScreenSize,
           fontSizeResolver: widget.fontSizeResolver,
           fontSizeResolver: widget.fontSizeResolver,
         );
         );
 
 
+        if (snapshot.connectionState == ConnectionState.done) {
           return widget.builder?.call(context, widget.child) ?? widget.child!;
           return widget.builder?.call(context, widget.child) ?? widget.child!;
         }
         }
 
 
+        return const SizedBox.shrink();
+      },
+    );
+  }
+
   @override
   @override
   void dispose() {
   void dispose() {
     _binding.removeObserver(this);
     _binding.removeObserver(this);