Fix web warrning

image_cropper/example/lib/main.dart

@@ -132,8 +132,8 @@ class _HomePageState extends State<HomePage> {
   }
 
   Widget _image() {
-    final screenWidth = MediaQuery.of(context).size.width;
-    final screenHeight = MediaQuery.of(context).size.height;
+    final screenWidth = MediaQuery.sizeOf(context).width;
+    final screenHeight = MediaQuery.sizeOf(context).height;
     if (_croppedFile != null) {
       final path = _croppedFile!.path;
       return ConstrainedBox(

image_cropper_for_web/example/lib/main.dart

@@ -1,4 +1,3 @@
-
 import 'package:dotted_border/dotted_border.dart';
 import 'package:flutter/material.dart';
 import 'package:image_cropper/image_cropper.dart';
@@ -48,7 +47,9 @@ class MyApp extends StatelessWidget {
               side: MaterialStateBorderSide.resolveWith(
                   (states) => const BorderSide(color: Color(0xFFBC764A))),
             ),
-          ), colorScheme: ColorScheme.fromSwatch(primarySwatch: Colors.blue).copyWith(background: const Color(0xFFFDF5EC))),
+          ),
+          colorScheme: ColorScheme.fromSwatch(primarySwatch: Colors.blue)
+              .copyWith(background: const Color(0xFFFDF5EC))),
       home: const MyHomePage(title: 'Image Cropper Demo'),
     );
   }
@@ -61,7 +62,7 @@ class MyHomePage extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final screenWidth = MediaQuery.of(context).size.width;
+    final screenWidth = MediaQuery.sizeOf(context).width;
     if (screenWidth > 700) {
       return _HomePage(
         key: const ValueKey('desktop'),
@@ -158,8 +159,8 @@ class _HomePageState extends State<_HomePage> {
   }
 
   Widget _image() {
-    final screenWidth = MediaQuery.of(context).size.width;
-    final screenHeight = MediaQuery.of(context).size.height;
+    final screenWidth = MediaQuery.sizeOf(context).width;
+    final screenHeight = MediaQuery.sizeOf(context).height;
     if (_croppedBlobUrl != null) {
       return ConstrainedBox(
           constraints: BoxConstraints(
@@ -242,9 +243,10 @@ class _HomePageState extends State<_HomePage> {
                       const SizedBox(height: 24.0),
                       Text(
                         'Upload an image to start',
-                        style: Theme.of(context).textTheme.headlineSmall!.copyWith(
-                              color: Theme.of(context).highlightColor,
-                            ),
+                        style:
+                            Theme.of(context).textTheme.headlineSmall!.copyWith(
+                                  color: Theme.of(context).highlightColor,
+                                ),
                       )
                     ],
                   ),
@@ -268,8 +270,8 @@ class _HomePageState extends State<_HomePage> {
     if (_uploadedBlobUrl != null) {
       WebUiSettings settings;
       if (widget.displayStyle == PageDisplayStyle.mobile) {
-        final screenWidth = MediaQuery.of(context).size.width;
-        final screenHeight = MediaQuery.of(context).size.height;
+        final screenWidth = MediaQuery.sizeOf(context).width;
+        final screenHeight = MediaQuery.sizeOf(context).height;
         settings = WebUiSettings(
           context: context,
           presentStyle: CropperPresentStyle.page,

image_cropper_for_web/lib/image_cropper_for_web.dart

@@ -1,7 +1,8 @@
 library image_cropper_for_web;
 
 import 'dart:html' as html;
-import 'dart:ui' as ui;
+import 'src/universal_ui/dart_fake_ui.dart'
+    if (dart.library.html) 'src/universal_ui/dart_real_ui.dart' as ui;
 
 import 'package:flutter/material.dart';
 import 'package:flutter_web_plugins/flutter_web_plugins.dart';
@@ -130,8 +131,7 @@ class ImageCropperPlugin extends ImageCropperPlatform {
 
     final viewId = 'croppie-view-${DateTime.now().millisecondsSinceEpoch}';
 
-    // ignore: undefined_prefixed_name
-    ui.platformViewRegistry
+    ui.PlatformViewRegistry()
         .registerViewFactory(viewId, (int viewId) => element);
 
     final cropper = HtmlElementView(

image_cropper_for_web/lib/src/universal_ui/dart_fake_ui.dart

@@ -0,0 +1,20 @@
+class PlatformViewRegistry {
+  /// Register [viewType] as being created by the given [viewFactory].
+  ///
+  /// [viewFactory] can be any function that takes an integer and optional
+  /// `params` and returns an `HTMLElement` DOM object.
+  bool registerViewFactory(
+    String viewType,
+    Function viewFactory, {
+    bool isVisible = true,
+  }) {
+    return false;
+  }
+
+  /// Returns the view previously created for [viewId].
+  ///
+  /// Throws if no view has been created for [viewId].
+  Object getViewById(int viewId) {
+    return '';
+  }
+}

image_cropper_for_web/lib/src/universal_ui/dart_real_ui.dart

@@ -0,0 +1 @@
+export 'dart:ui' if (dart.library.html) 'dart:ui_web';