SfBarcodeGenerator class

Create barcode to generate and display data in a machine-readable industry-standard 1D and 2D barcodes.

One-dimensional barcodes

SfBarcodeGenerator supports different one-dimensional barcode symbologies such as Code128, EAN8, EAN13, UPCA, UPCE, Code39, Code39Extended, Code93, and Codabar.

Two-dimensional barcodes

SfBarcodeGenerator supports popular QRCode and DataMatrix.

Customize the visual appearance of barcodes using the backgroundColor and barColor properties and adjust the size of smallest line or dot of the code using the Symbology.module property.

Configure to display the human readable text and can customize it's position and style.

Widget build(BuildContext context) {
  return MaterialApp(
     home: Scaffold(
         backgroundColor: Colors.white,
         body: Center(
             child: Container(
           height: 200,
           child: SfBarcodeGenerator(
             value: 'www.syncfusion.com',
             symbology: QRCode(),
             showValue: true,
             textStyle: TextStyle(fontSize: 15),
           ),
         ))),
   );
 }
```dart

Inheritance

Available extensions

Constructors

SfBarcodeGenerator.new({Key? key, required String? value, Symbology? symbology, Color? barColor, Color? backgroundColor, bool showValue = false, double textSpacing = 2, TextAlign textAlign = TextAlign.center, TextStyle? textStyle}): Generate the barcode using supported symbology types based on input values.

Properties

backgroundColor → Color?: The background color to fill the background of the SfBarcodeGenerator.
final
barColor → Color?: Define the color for barcode elements.
final
hashCode → int: The hash code for this object.
no setterinherited
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
pZero → Widget: Available on Widget, provided by the WidgetsExtension extension

no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
showValue → bool: Whether to show a human readable text (input value) along with a barcode.
final
sliverBox → Widget: Available on Widget, provided by the WidgetSliverBoxX extension

no setter
symbology → Symbology: Define the barcode symbology that will be used to encode the input value to the visual barcode representation.
final
textAlign → TextAlign: How the text should be aligned horizontally in barcode.
final
textSpacing → double: Specifies the space between the text and the barcode.
final
textStyle → TextStyle?: The style to use for the human readable text in barcode.
final
value → String?: Defines the value of the barcode to be rendered.
final

Methods

alignAtBottomCenter({Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignAtBottomLeft({Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignAtBottomRight({Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignAtCenter({Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignAtCenterLeft({Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignAtCenterRight({Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignAtLERP(Alignment a, Alignment b, double t, {Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignAtTopCenter({Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignAtTopLeft({Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignAtTopRight({Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
alignXY(double x, double y, {Key? key, double? heightFactor, double? widthFactor}) → Align: Available on Widget, provided by the WidgetsExtension extension
card({Color? backgroundColor, double elevation = 1, EdgeInsets? margin}) → Widget: Available on Widget, provided by the WidgetsExtension extension
container({double? width, double? height, Alignment? alignment, Color? backgroundColor, double borderWidth = 1, double radius = 1, Color borderColor = Colors.transparent, EdgeInsets? padding, EdgeInsets? margin, BoxConstraints? constraints}) → Widget: Available on Widget, provided by the WidgetsExtension extension
createElement() → StatefulElement: Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<StatefulWidget>: Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() → List<DiagnosticsNode>: Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node.
inherited
expanded({int flex = 1}) → Widget: Available on Widget, provided by the WidgetsExtension extension
fit({Alignment alignment = Alignment.center}) → Widget: Available on Widget, provided by the WidgetsExtension extension
form(GlobalKey<FormState> key) → Widget: Available on Widget, provided by the WidgetsExtension extension
ltr() → Widget: Available on Widget, provided by the WidgetsExtension extension
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
onDoubleTap(GestureTapCallback? onPressed) → Widget: Available on Widget, provided by the WidgetsExtension extension
onLongPress(GestureTapCallback? onPressed) → Widget: Available on Widget, provided by the WidgetsExtension extension
onTap(GestureTapCallback? onPressed) → Widget: Available on Widget, provided by the WidgetsExtension extension
onTapInk(GestureTapCallback? onPressed) → Widget: Available on Widget, provided by the WidgetsExtension extension
pAll(double padding) → Widget: Available on Widget, provided by the WidgetsExtension extension
pOnly({double left = 0.0, double top = 0.0, double right = 0.0, double bottom = 0.0}) → Widget: Available on Widget, provided by the WidgetsExtension extension
pSymmetric({double horizontal = 0.0, double vertical = 0.0}) → Widget: Available on Widget, provided by the WidgetsExtension extension
rotate(double scale) → Widget: Available on Widget, provided by the WidgetsExtension extension
rtl() → Widget: Available on Widget, provided by the WidgetsExtension extension
safeArea() → Widget: Available on Widget, provided by the WidgetsExtension extension
scale(double scale) → Widget: Available on Widget, provided by the WidgetsExtension extension
scrollable({Axis scrollDirection = Axis.vertical}) → Widget: Available on Widget, provided by the WidgetsExtension extension
showMenus(List<PopupMenuEntry<int>> items) → Widget: Available on Widget, provided by the WidgetsExtension extension
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode: Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String: A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String: Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String: Returns a one-line detailed description of the object.
inherited
toStringShort() → String: A short, textual description of this widget.
inherited
translate(Offset offset) → Widget: Available on Widget, provided by the WidgetsExtension extension

Operators

operator ==(Object other) → bool: The equality operator.
inherited