UBarcode class

Inheritance
Available extensions

Constructors

UBarcode({required String value, UBarcodeType type = UBarcodeType.qrCode, Color? barColor, Color? backgroundColor, List<Color>? gradientColors, AlignmentGeometry gradientBegin = Alignment.centerLeft, AlignmentGeometry gradientEnd = Alignment.centerRight, UBarcodeModuleShape moduleShape = UBarcodeModuleShape.square, double cornerRadiusRatio = 0.3, bool showValue = false, double textSpacing = 8, TextStyle? textStyle, double quietZone = 0, UErrorCorrectionLevel? errorCorrectionLevel, int? qrCodeVersion, int? module, bool? enableCheckSum, Uint8List? logoBytes, double logoSizeRatio = 0.2, double? width, double? height, Key? key})
const

Properties

backgroundColor → Color?
final
barColor → Color?
final
cornerRadiusRatio → double
final
enableCheckSum → bool?
final
errorCorrectionLevel → UErrorCorrectionLevel?
final
gradientBegin → AlignmentGeometry
final
gradientColors → List<Color>?
final
gradientEnd → AlignmentGeometry
final
hashCode → int
The hash code for this object.
no setterinherited
height → double?
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
logoBytes → Uint8List?
final
logoSizeRatio → double
final
module → int?
final
moduleShape → UBarcodeModuleShape
final
qrCodeVersion → int?
final
quietZone → double
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
showValue → bool
final
textSpacing → double
final
textStyle → TextStyle?
final
type → UBarcodeType
final
value → String
final
width → double?
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, EdgeInsetsGeometry? margin}) → Widget

Available on Widget, provided by the WidgetsExtension extension

chip({required Color backgroundColor, double? width, double? height, Alignment? alignment, double borderWidth = 1, double radius = 12, Color borderColor = Colors.transparent, EdgeInsets padding = const EdgeInsets.symmetric(horizontal: 8, vertical: 6), EdgeInsetsGeometry? margin, BoxConstraints? constraints}) → 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, EdgeInsetsGeometry? padding, EdgeInsetsGeometry? 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<UBarcode>
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

fadeSlideIn({int milliseconds = 1000, double offset = 24}) → 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

onPress(VoidCallback onTap, {double pressedScale = 0.9, Duration duration = const Duration(milliseconds: 120)}) → 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

pLTRB(double left, double top, double right, double bottom) → 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

position({double? left, double? top, double? right, double? bottom, double? width, double? height}) → 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

Static Methods

isValid(String value, UBarcodeType type) → bool
toPng({required String value, UBarcodeType type = UBarcodeType.qrCode, double width = 512, double height = 512, double pixelRatio = 1, Color barColor = const Color(0xFF000000), Color background = const Color(0xFFFFFFFF), List<Color>? gradientColors, AlignmentGeometry gradientBegin = Alignment.centerLeft, AlignmentGeometry gradientEnd = Alignment.centerRight, UBarcodeModuleShape moduleShape = UBarcodeModuleShape.square, double cornerRadiusRatio = 0.3, bool showValue = false, double textSpacing = 8, double quietZone = 0, UErrorCorrectionLevel errorCorrectionLevel = UErrorCorrectionLevel.low, int? qrCodeVersion}) → Future<Uint8List?>
toSvg({required String value, UBarcodeType type = UBarcodeType.qrCode, double width = 200, double height = 80, bool showValue = false, UErrorCorrectionLevel errorCorrectionLevel = UErrorCorrectionLevel.low, int? qrCodeVersion}) → String