GpQrCode class
Muestra un código QR generado a partir de data — para el caso "acá está
esto, escaneálo" (un link, un id de invitación, un token para vincular
otro dispositivo, etc). Para el caso inverso (leer un QR con la cámara),
ver el scanner de package:gp_design/scanner.dart.
No depende de red ni de nada asíncrono — se pinta localmente a partir del
texto (vía package:qr_flutter), así que sirve igual con o sin conexión.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- GpQrCode
Constructors
-
GpQrCode({Key? key, required String data, double size = 240, Color backgroundColor = Colors.white, Color foregroundColor = Colors.black, EdgeInsets padding = const EdgeInsets.all(16), double borderRadius = 12, ImageProvider<
Object> ? embeddedImage, Size embeddedImageSize = const Size(40, 40), int errorCorrectionLevel = QrErrorCorrectLevel.L, String semanticLabel = 'Código QR', String errorMessage = 'No pudimos generar el código QR'}) -
const
Properties
- backgroundColor → Color
-
final
- borderRadius → double
-
final
- data → String
-
final
-
embeddedImage
→ ImageProvider<
Object> ? -
Logo/imagen chica centrada arriba del QR (ej. el ícono de la app). Subí
el nivel de corrección de errores (
errorCorrectionLevel) si lo usás, para que el QR siga siendo legible con parte del patrón tapado.final - embeddedImageSize → Size
-
final
- errorCorrectionLevel → int
-
Nivel de corrección de errores del QR — más alto tolera más superficie
tapada o dañada (ej. por embeddedImage) a costa de un patrón más
denso. Ver
QrErrorCorrectLevel(L/M/Q/H, defaultL).final - errorMessage → String
-
final
- foregroundColor → Color
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- padding → EdgeInsets
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- semanticLabel → String
-
final
- size → double
-
final
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
inherited
-
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
-
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
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited