BarcodePainter class
Barcode renderer
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- RenderObjectWidget
- LeafRenderObjectWidget
- BarcodePainter
Constructors
- BarcodePainter.new(String? _dataString, CodeType barcode, Color color, bool drawText, TextStyle? style, double textPadding, {Key? key})
-
Create a Barcode renderer
const
- BarcodePainter.fromBytes(Uint8List? _dataBytes, CodeType barcode, Color color, bool drawText, TextStyle? style, double textPadding, {Key? key})
-
const
Properties
- barcode → CodeType
-
The barcode rendering object
final
- color → Color
-
The color of the barcode elements, usually black
final
- data → Uint8List
-
no setter
- drawText → bool
-
Draw the text if any
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- isBytes → bool
-
Is this raw bytes
no setter
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- style → TextStyle?
-
Text style to use
final
- textPadding → double
-
Padding to add between the text and the barcode
final
Methods
-
createElement(
) → LeafRenderObjectElement -
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
-
createRenderObject(
BuildContext context) → RenderObject -
Creates an instance of the RenderObject class that this
RenderObjectWidget represents, using the configuration described by this
RenderObjectWidget.
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
-
didUnmountRenderObject(
covariant RenderObject renderObject) → void -
This method is called when a RenderObject that was previously
associated with this widget is removed from the render tree.
The provided RenderObject will be of the same type as the one created by
this widget's createRenderObject method.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
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
-
updateRenderObject(
BuildContext context, covariant RenderBarcode renderObject) → void -
Copies the configuration described by this RenderObjectWidget to the
given RenderObject, which will be of the same type as returned by this
object's createRenderObject.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited