Committed all the syncfusion flutter widget packages.

packages/syncfusion_flutter_barcodes/README.md

@@ -1,12 +1,10 @@
 ![syncfusion_flutter_barcode_banner](https://cdn.syncfusion.com/content/images/FTControl/Flutter/Barcode%20Banner.png)
 
-# Syncfusion Flutter Barcodes
+# Flutter Barcodes library
 
-The Syncfusion Flutter Barcode Generator is a data visualization widget used to generate and display data in a machine-readable format. It provides a perfect approach to encoding input values using supported symbology types.
+Flutter Barcode Generator package is a data visualization widget used to generate and display data in a machine-readable format. It provides a perfect approach to encoding input values using supported symbology types.
 
-**Disclaimer:** This is a commercial package. To use this package, you need to have either a Syncfusion commercial license or Syncfusion Community License. For more details, please check the [LICENSE](https://github.com/syncfusion/flutter-examples/blob/master/LICENSE) file.
-
-**Note:** Our packages are now compatible with Flutter for Web. However, this will be in Beta until Flutter for Web becomes stable.
+**Disclaimer:** This is a commercial package. To use this package, you need to have either a Syncfusion commercial license or [Free Syncfusion Community license](https://www.syncfusion.com/products/communitylicense). For more details, please check the [LICENSE](https://github.com/syncfusion/flutter-examples/blob/master/LICENSE) file.
 
 ## Table of contents
 - [Barcode Generator feature](#barcode-generator-feature)

packages/syncfusion_flutter_barcodes/analysis_options.yaml

@@ -4,3 +4,4 @@ analyzer:
   errors:
     include_file_not_found: ignore
     lines_longer_than_80_chars: ignore
+    avoid_as: false

packages/syncfusion_flutter_barcodes/example/pubspec.yaml

@@ -14,7 +14,7 @@ description: A new Flutter project.
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.1.0 <3.0.0"
+  sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
   flutter:
@@ -24,7 +24,7 @@ dependencies:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.2
+  cupertino_icons: ^1.0.2
 
 dev_dependencies:
   flutter_test:

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/base/barcode_generator.dart

@@ -19,11 +19,10 @@ import '../one_dimensional/upca_symbology.dart';
 import '../one_dimensional/upce_symbology.dart';
 
 import '../renderers/one_dimensional/codabar_renderer.dart';
-
-import '../renderers/one_dimensional/code128A_renderer.dart';
-import '../renderers/one_dimensional/code128B_renderer.dart';
-import '../renderers/one_dimensional/code128C_renderer.dart';
 import '../renderers/one_dimensional/code128_renderer.dart';
+import '../renderers/one_dimensional/code128a_renderer.dart';
+import '../renderers/one_dimensional/code128b_renderer.dart';
+import '../renderers/one_dimensional/code128c_renderer.dart';
 import '../renderers/one_dimensional/code39_extended_renderer.dart';
 import '../renderers/one_dimensional/code39_renderer.dart';
 import '../renderers/one_dimensional/code93_renderer.dart';
@@ -87,9 +86,9 @@ class SfBarcodeGenerator extends StatefulWidget {
   ///
   /// Default symbology is [Code128].
   SfBarcodeGenerator(
-      {Key key,
-      @required this.value,
-      Symbology symbology,
+      {Key? key,
+      required this.value,
+      Symbology? symbology,
       this.barColor,
       this.backgroundColor,
       this.showValue = false,
@@ -115,7 +114,7 @@ class SfBarcodeGenerator extends StatefulWidget {
   ///        child: SfBarcodeGenerator(value:'123456'));
   ///}
   /// ```dart
-  final String value;
+  final String? value;
 
   /// Define the barcode symbology that will be used to encode the input value
   /// to the visual barcode representation.
@@ -160,7 +159,7 @@ class SfBarcodeGenerator extends StatefulWidget {
   ///        barColor : Colors.red));
   ///}
   /// ```dart
-  final Color barColor;
+  final Color? barColor;
 
   /// The background color to fill the background of the [SfBarcodeGenerator].
   ///
@@ -176,7 +175,7 @@ class SfBarcodeGenerator extends StatefulWidget {
   ///        backgroundColor : Colors.red));
   ///}
   /// ```dart
-  final Color backgroundColor;
+  final Color? backgroundColor;
 
   /// Whether to show a human readable text (input value) along with a barcode.
   ///
@@ -261,12 +260,12 @@ class SfBarcodeGenerator extends StatefulWidget {
 /// Represents the barcode generator state
 class _SfBarcodeGeneratorState extends State<SfBarcodeGenerator> {
   /// Specifies the theme data
-  SfBarcodeThemeData _barcodeTheme;
+  late SfBarcodeThemeData _barcodeTheme;
 
   /// Specifies the text size
-  Size _textSize;
+  Size? _textSize;
 
-  SymbologyRenderer _symbologyRenderer;
+  late SymbologyRenderer _symbologyRenderer;
 
   @override
   void didChangeDependencies() {
@@ -332,12 +331,12 @@ class _SfBarcodeGeneratorState extends State<SfBarcodeGenerator> {
     if (widget.showValue && _textSize == null) {
       _textSize = measureText(widget.value.toString(), widget.textStyle);
     }
-    _symbologyRenderer.getIsValidateInput(widget.value);
+    _symbologyRenderer.getIsValidateInput(widget.value!);
     _symbologyRenderer.textSize = _textSize;
     return Container(
       color: widget.backgroundColor ?? _barcodeTheme.backgroundColor,
       child: SfBarcodeGeneratorRenderObjectWidget(
-          value: widget.value,
+          value: widget.value!,
           symbology: widget.symbology,
           foregroundColor: widget.barColor ?? _barcodeTheme.barColor,
           showText: widget.showValue,

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/base/symbology_base.dart

@@ -44,5 +44,5 @@ abstract class Symbology {
   ///        symbology: UPCE(module: 2)));
   ///}
   /// ```dart
-  final int module;
+  final int? module;
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/common/barcode_renderer.dart

@@ -8,7 +8,7 @@ import '../renderers/one_dimensional/symbology_base_renderer.dart';
 class SfBarcodeGeneratorRenderObjectWidget extends LeafRenderObjectWidget {
   /// Creates the render object widget
   const SfBarcodeGeneratorRenderObjectWidget(
-      {Key key,
+      {Key? key,
       this.value,
       this.symbology,
       this.foregroundColor,
@@ -21,75 +21,75 @@ class SfBarcodeGeneratorRenderObjectWidget extends LeafRenderObjectWidget {
       : super(key: key);
 
   ///Defines the value of the barcode to be rendered.
-  final String value;
+  final String? value;
 
   ///Define anyone of barcode symbology that will be used to
   ///convert input value into visual barcode representation
-  final Symbology symbology;
+  final Symbology? symbology;
 
   /// Define the color for barcode elements.
-  final Color foregroundColor;
+  final Color? foregroundColor;
 
   /// Specifies whether to show the value along with the barcode.
-  final bool showText;
+  final bool? showText;
 
   /// Specifies the spacing between the text and the barcode.
-  final double textSpacing;
+  final double? textSpacing;
 
   ///Defines the text alignment for the text to be rendered in the barcode.
-  final TextStyle textStyle;
+  final TextStyle? textStyle;
 
   /// Add style to customize the text.
-  final Size textSize;
+  final Size? textSize;
 
   /// Specifies the spacing between the text and the barcode.
-  final TextAlign textAlign;
+  final TextAlign? textAlign;
 
   /// Specifies the corresponding renderer class
-  final SymbologyRenderer symbologyRenderer;
+  final SymbologyRenderer? symbologyRenderer;
 
   @override
   RenderObject createRenderObject(BuildContext context) {
     return _RenderBarcode(
-        value: value,
-        symbology: symbology,
-        foregroundColor: foregroundColor,
-        showText: showText,
-        textSpacing: textSpacing,
-        symbologyRenderer: symbologyRenderer,
-        textStyle: textStyle,
+        value: value!,
+        symbology: symbology!,
+        foregroundColor: foregroundColor!,
+        showText: showText!,
+        textSpacing: textSpacing!,
+        symbologyRenderer: symbologyRenderer!,
+        textStyle: textStyle!,
         textSize: textSize,
-        textAlign: textAlign);
+        textAlign: textAlign!);
   }
 
   @override
   void updateRenderObject(BuildContext context, _RenderBarcode renderObject) {
     renderObject
-      ..value = value
-      ..symbology = symbology
-      ..symbologyRenderer = symbologyRenderer
-      ..foregroundColor = foregroundColor
-      ..showText = showText
-      ..textSpacing = textSpacing
-      ..textStyle = textStyle
+      ..value = value!
+      ..symbology = symbology!
+      ..symbologyRenderer = symbologyRenderer!
+      ..foregroundColor = foregroundColor!
+      ..showText = showText!
+      ..textSpacing = textSpacing!
+      ..textStyle = textStyle!
       ..textSize = textSize
-      ..textAlign = textAlign;
+      ..textAlign = textAlign!;
   }
 }
 
 /// Represents the RenderBarcode class
 class _RenderBarcode extends RenderBox {
   /// Creates the RenderBarcode
   _RenderBarcode(
-      {@required String value,
-      Symbology symbology,
-      SymbologyRenderer symbologyRenderer,
-      Color foregroundColor,
-      bool showText,
-      double textSpacing,
-      TextStyle textStyle,
-      Size textSize,
-      TextAlign textAlign})
+      {required String value,
+      required Symbology symbology,
+      required SymbologyRenderer symbologyRenderer,
+      required Color foregroundColor,
+      required bool showText,
+      required double textSpacing,
+      required TextStyle textStyle,
+      Size? textSize,
+      required TextAlign textAlign})
       : _value = value,
         _symbology = symbology,
         _symbologyRenderer = symbologyRenderer,
@@ -120,7 +120,7 @@ class _RenderBarcode extends RenderBox {
   TextStyle _textStyle;
 
   /// Add style to customize the text.
-  Size _textSize;
+  Size? _textSize;
 
   /// Specifies the spacing between the text and the barcode.
   TextAlign _textAlign;
@@ -147,7 +147,7 @@ class _RenderBarcode extends RenderBox {
   TextStyle get textStyle => _textStyle;
 
   /// Returns the text size value
-  Size get textSize => _textSize;
+  Size get textSize => _textSize!;
 
   /// Returns the text align value
   TextAlign get textAlign => _textAlign;
@@ -204,7 +204,7 @@ class _RenderBarcode extends RenderBox {
   }
 
   /// Sets the text size value
-  set textSize(Size value) {
+  set textSize(Size? value) {
     if (_textSize != value) {
       _textSize = value;
       markNeedsPaint();
@@ -252,7 +252,7 @@ class _RenderBarcode extends RenderBox {
             size.height -
                 (showText
                     ? (_textSpacing +
-                        (_textSize != null ? _textSize.height : 0))
+                        (_textSize != null ? _textSize!.height : 0))
                     : 0)),
         offset,
         value,

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/codabar_symbology.dart

@@ -7,5 +7,5 @@ class Codabar extends Symbology {
   ///
   /// The arguments [module] must be non-negative and greater than 0.
   ///
-  Codabar({int module}) : super(module: module);
+  Codabar({int? module}) : super(module: module);
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/code128_symbology.dart

@@ -18,7 +18,7 @@ class Code128 extends Symbology {
   /// This is a very large method. This method could be
   /// refactor to a smaller methods, but it degrades the performance.Since it
   /// adds the character corresponding to this symbology is added in to the list
-  Code128({int module})
+  Code128({int? module})
       : super(
           module: module,
         );

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/code128a_symbology.dart

@@ -9,5 +9,5 @@ class Code128A extends Code128 {
   ///
   /// The arguments [module] must be non-negative and greater than 0.
   ///
-  Code128A({int module}) : super(module: module);
+  Code128A({int? module}) : super(module: module);
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/code128b_symbology.dart

@@ -9,5 +9,5 @@ class Code128B extends Code128 {
   ///
   /// The arguments [module] must be non-negative and greater than 0.
   ///
-  Code128B({int module}) : super(module: module);
+  Code128B({int? module}) : super(module: module);
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/code128c_symbology.dart

@@ -9,5 +9,5 @@ class Code128C extends Code128 {
   ///
   /// The arguments [module] must be non-negative and greater than 0.
   ///
-  Code128C({int module}) : super(module: module);
+  Code128C({int? module}) : super(module: module);
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/code39_extended_symbology.dart

@@ -17,6 +17,6 @@ class Code39Extended extends Code39 {
   /// This is a very large method. This method could be
   /// refactored to a smaller methods, but it degrades the performance.Since it
   /// adds character corresponding to this symbology is added in to the list
-  Code39Extended({int module, bool enableCheckSum})
+  Code39Extended({int? module, bool? enableCheckSum})
       : super(module: module, enableCheckSum: enableCheckSum ?? true);
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/code39_symbology.dart

@@ -23,7 +23,7 @@ class Code39 extends Symbology {
   /// a modulo 43 checksum can be added,
   /// if the [enableCheckSum] is true.
   ///
-  Code39({int module, this.enableCheckSum = true}) : super(module: module);
+  Code39({int? module, this.enableCheckSum = true}) : super(module: module);
 
   /// Whether to add a checksum on the far right side of the barcode.
   ///

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/code93_symbology.dart

@@ -14,5 +14,5 @@ class Code93 extends Symbology {
   /// high level of accuracy.
   /// The checksum character is the modulo 47 remainder of the sum of the
   /// weighted value of the data characters.
-  Code93({int module}) : super(module: module);
+  Code93({int? module}) : super(module: module);
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/ean13_symbology.dart

@@ -23,5 +23,5 @@ class EAN13 extends Symbology {
   /// valid check digit otherwise remove it, since it has been calculated
   /// automatically.
   ///
-  EAN13({int module}) : super(module: module);
+  EAN13({int? module}) : super(module: module);
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/ean8_symbology.dart

@@ -20,5 +20,5 @@ class EAN8 extends Symbology {
   /// valid check digit otherwise remove it, since it has been calculated
   /// automatically.
   ///
-  EAN8({int module}) : super(module: module);
+  EAN8({int? module}) : super(module: module);
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/upca_symbology.dart

@@ -21,5 +21,5 @@ class UPCA extends Symbology {
   /// be valid check digit otherwise remove it, since it has been calculated
   /// automatically.
   ///
-  UPCA({int module}) : super(module: module);
+  UPCA({int? module}) : super(module: module);
 }

packages/syncfusion_flutter_barcodes/lib/src/barcode_generator/one_dimensional/upce_symbology.dart

@@ -16,5 +16,5 @@ class UPCE extends Symbology {
   /// By default, the number system(0) will add at the front and check digit
   /// at the end along with 6 digits of the input product code.
   ///
-  UPCE({int module}) : super(module: module);
+  UPCE({int? module}) : super(module: module);
 }