Merge pull request #2 from Sasikumar3595/main

FLUT-4313-Sample updated with null safety.

Author: jayaleshwari

lib/main.dart

@@ -23,40 +23,31 @@ class ViewHeaderCustomization extends StatefulWidget {
       _ViewHeaderCustomizationState();
 }
 
-List<String> _days = <String>['S', 'M', 'T', 'W', 'T', 'F', 'S'];
-List<Icon> _icons = <Icon>[
-  Icon(
-    Icons.ac_unit,
-    color: Colors.black,
-  ),
-  Icon(Icons.wb_sunny, color: Colors.amber),
-  Icon(
-    Icons.wb_incandescent,
-    color: Color(0xFF0ba0000),
-  ),
-  Icon(Icons.wb_auto, color: Colors.orange),
-  Icon(Icons.wb_cloudy, color: Colors.grey),
-  Icon(Icons.wb_sunny, color: Colors.amber),
-  Icon(
-    Icons.wb_incandescent,
-    color: Color(0xFF0ba0000),
-  )
-];
-
 class _ViewHeaderCustomizationState extends State<ViewHeaderCustomization> {
-  double _width, _cellWidth;
-
-  @override
-  void initState() {
-    _width = 0.0;
-    _cellWidth = 0.0;
-    super.initState();
-  }
+  final List<String> _days = <String>['S', 'M', 'T', 'W', 'T', 'F', 'S'];
+  final List<Icon> _icons = <Icon>[
+    Icon(
+      Icons.ac_unit,
+      color: Colors.black,
+    ),
+    Icon(Icons.wb_sunny, color: Colors.amber),
+    Icon(
+      Icons.wb_incandescent,
+      color: Color(0xFF0ba0000),
+    ),
+    Icon(Icons.wb_auto, color: Colors.orange),
+    Icon(Icons.wb_cloudy, color: Colors.grey),
+    Icon(Icons.wb_sunny, color: Colors.amber),
+    Icon(
+      Icons.wb_incandescent,
+      color: Color(0xFF0ba0000),
+    )
+  ];
 
   @override
   Widget build(BuildContext context) {
-    _width = MediaQuery.of(context).size.width;
-    _cellWidth = _width / 9;
+    final double width = MediaQuery.of(context).size.width;
+    final double cellWidth = width / 9;
 
     return Scaffold(
         body: SafeArea(
@@ -68,8 +59,8 @@ class _ViewHeaderCustomizationState extends State<ViewHeaderCustomization> {
               scrollDirection: Axis.horizontal,
               itemBuilder: (BuildContext ctxt, int index) {
                 return Container(
-                  padding: const EdgeInsets.only(left: 15,top: 5),
-                  width: _cellWidth,
+                  padding: const EdgeInsets.only(left: 15, top: 5),
+                  width: cellWidth,
                   height: 5,
                   color: Colors.lightGreen,
                   child: Text(_days[index]),
@@ -82,7 +73,7 @@ class _ViewHeaderCustomizationState extends State<ViewHeaderCustomization> {
               itemBuilder: (BuildContext ctxt, int index) {
                 return Container(
                   padding: const EdgeInsets.only(left: 5),
-                  width: _cellWidth,
+                  width: cellWidth,
                   child: _icons[index],
                 );
               }),

pubspec.lock

@@ -7,56 +7,56 @@ 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: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0-nullsafety.3"
+    version: "1.15.0"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.0"
+    version: "1.0.2"
   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
@@ -73,35 +73,28 @@ packages:
       name: intl
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.16.1"
+    version: "0.17.0"
   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.4"
+    version: "1.3.0"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.1"
-  pedantic:
-    dependency: transitive
-    description:
-      name: pedantic
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.9.2"
+    version: "1.8.0"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -113,69 +106,69 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.2"
+    version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.10.0-nullsafety.2"
+    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"
   syncfusion_flutter_core:
     dependency: transitive
     description:
       name: syncfusion_flutter_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "18.3.47"
+    version: "19.1.55"
   syncfusion_flutter_datepicker:
     dependency: "direct main"
     description:
       name: syncfusion_flutter_datepicker
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "18.3.47-beta"
+    version: "19.1.55-beta"
   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"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.3"
+    version: "2.1.0"
 sdks:
-  dart: ">=2.10.0-110 <=2.11.0-213.1.beta"
+  dart: ">=2.12.0 <3.0.0"

pubspec.yaml

@@ -18,17 +18,17 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
   flutter:
     sdk: flutter
-  syncfusion_flutter_datepicker: 18.3.47-beta
+  syncfusion_flutter_datepicker: ^19.1.55-beta
 
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^1.0.0
+  cupertino_icons: ^1.0.2
 
 dev_dependencies:
   flutter_test: