Fixed phone build break issue

app/pubspec.lock

@@ -43,6 +43,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.5"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.2"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -93,6 +114,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.14.0+4"
   http:
     dependency: transitive
     description:
@@ -252,6 +280,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.0"
+  universal_html:
+    dependency: transitive
+    description:
+      name: universal_html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.4"
+  universal_io:
+    dependency: transitive
+    description:
+      name: universal_io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
   url_launcher:
     dependency: transitive
     description:
@@ -301,6 +343,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
+  zone_local:
+    dependency: transitive
+    description:
+      name: zone_local
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.2"
 sdks:
   dart: ">=2.12.0-0.0 <3.0.0"
   flutter: ">=1.22.0"

lib/widgets/editor.dart

@@ -1,6 +1,5 @@
-import 'dart:io';
+import 'dart:io' as io;
 import 'dart:math' as math;
-import 'dart:math' if (dart.library.html) 'dart:html' as html;
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
@@ -20,6 +19,7 @@ import 'package:flutter_quill/widgets/image.dart';
 import 'package:flutter_quill/widgets/raw_editor.dart';
 import 'package:flutter_quill/widgets/responsive_widget.dart';
 import 'package:flutter_quill/widgets/text_selection.dart';
+import 'package:universal_html/prefer_universal/html.dart' as html;
 import 'package:url_launcher/url_launcher.dart';
 
 import 'FakeUi.dart' if (dart.library.html) 'RealUi.dart' as ui;
@@ -83,7 +83,7 @@ Widget _defaultEmbedBuilder(BuildContext context, leaf.Embed node) {
       String imageUrl = node.value.data;
       return imageUrl.startsWith('http')
           ? Image.network(imageUrl)
-          : Image.file(File(imageUrl));
+          : Image.file(io.File(imageUrl));
     default:
       throw UnimplementedError(
           'Embeddable type "${node.value.type}" is not supported by default embed '
@@ -403,7 +403,7 @@ class _QuillEditorSelectionGestureDetectorBuilder
             builder: (context) => ImageTapWrapper(
                 imageProvider: imageUrl.startsWith('http')
                     ? NetworkImage(imageUrl)
-                    : FileImage(File(blockEmbed.data))),
+                    : FileImage(io.File(blockEmbed.data))),
           ),
         );
       }

lib/widgets/responsive_widget.dart

@@ -5,7 +5,12 @@ class ResponsiveWidget extends StatelessWidget {
   final Widget mediumScreen;
   final Widget smallScreen;
 
-  const ResponsiveWidget({Key key, @required this.largeScreen, this.mediumScreen, this.smallScreen}) : super(key: key);
+  const ResponsiveWidget(
+      {Key key,
+      @required this.largeScreen,
+      this.mediumScreen,
+      this.smallScreen})
+      : super(key: key);
 
   static bool isSmallScreen(BuildContext context) {
     return MediaQuery.of(context).size.width < 800;
@@ -16,7 +21,8 @@ class ResponsiveWidget extends StatelessWidget {
   }
 
   static bool isMediumScreen(BuildContext context) {
-    return MediaQuery.of(context).size.width >= 800 && MediaQuery.of(context).size.width <= 1200;
+    return MediaQuery.of(context).size.width >= 800 &&
+        MediaQuery.of(context).size.width <= 1200;
   }
 
   @override
@@ -25,7 +31,8 @@ class ResponsiveWidget extends StatelessWidget {
       builder: (context, constraints) {
         if (constraints.maxWidth > 1200) {
           return largeScreen;
-        } else if (constraints.maxWidth <= 1200 && constraints.maxWidth >= 800) {
+        } else if (constraints.maxWidth <= 1200 &&
+            constraints.maxWidth >= 800) {
           return mediumScreen ?? largeScreen;
         } else {
           return smallScreen ?? largeScreen;

pubspec.lock

@@ -7,49 +7,70 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.5.0-nullsafety.1"
+    version: "2.5.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.1.0"
   characters:
     dependency: transitive
     description:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.3"
+    version: "1.1.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0"
   clock:
     dependency: transitive
     description:
       name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.1.0"
   collection:
     dependency: "direct main"
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0-nullsafety.3"
+    version: "1.15.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.5"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.2"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -79,6 +100,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.14.0+4"
   http:
     dependency: transitive
     description:
@@ -107,27 +135,34 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.1"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.3"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.10-nullsafety.1"
+    version: "0.12.10"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.3.0"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.1"
+    version: "1.8.0"
   pedantic:
     dependency: transitive
     description:
@@ -181,42 +216,42 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.2"
+    version: "1.8.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.10.0-nullsafety.1"
+    version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.19-nullsafety.2"
+    version: "0.2.19"
   tuple:
     dependency: "direct main"
     description:
@@ -230,7 +265,21 @@ packages:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.3.0"
+  universal_html:
+    dependency: "direct main"
+    description:
+      name: universal_html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.4"
+  universal_io:
+    dependency: transitive
+    description:
+      name: universal_io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
   url_launcher:
     dependency: "direct main"
     description:
@@ -279,7 +328,14 @@ packages:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.3"
+    version: "2.1.0"
+  zone_local:
+    dependency: transitive
+    description:
+      name: zone_local
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.2"
 sdks:
-  dart: ">=2.10.0-110 <2.11.0"
+  dart: ">=2.12.0-0.0 <3.0.0"
-  flutter: ">=1.22.0 <2.0.0"
+  flutter: ">=1.22.0"

pubspec.yaml

@@ -20,7 +20,7 @@ dependencies:
   flutter_colorpicker: ^0.3.4
   image_picker: ^0.6.7+17
   photo_view: ^0.10.3
-  universal_html: ^1.2.4
+  universal_html: ^1.2.1
 
 dev_dependencies:
   flutter_test: