ReaderWidget class

Widget to scan a code from the camera stream

Inheritance

Constructors

ReaderWidget({Key? key, dynamic onScan(Code)?, dynamic onScanFailure(Code)?, dynamic onMultiScan(Codes)?, dynamic onMultiScanFailure(Codes)?, dynamic onControllerCreated(CameraController? controller, Exception? error)?, dynamic onMultiScanModeChanged(bool)?, bool isMultiScan = false, AlignmentGeometry multiScanModeAlignment = Alignment.bottomRight, EdgeInsetsGeometry multiScanModePadding = const EdgeInsets.all(10), int codeFormat = Format.any, bool tryHarder = false, bool tryInverted = false, bool tryRotate = true, bool showScannerOverlay = true, ScannerOverlay? scannerOverlay, AlignmentGeometry actionButtonsAlignment = Alignment.bottomLeft, EdgeInsetsGeometry actionButtonsPadding = const EdgeInsets.all(10), bool showFlashlight = true, bool showToggleCamera = true, bool showGallery = true, bool allowPinchZoom = true, Duration scanDelay = const Duration(milliseconds: 1000), Duration scanDelaySuccess = const Duration(milliseconds: 1000), double cropPercent = 0.5, ResolutionPreset resolution = ResolutionPreset.high, CameraLensDirection lensDirection = CameraLensDirection.back, Widget loading = const DecoratedBox(decoration: BoxDecoration(color: Colors.black))})
const

Properties

actionButtonsAlignment → AlignmentGeometry
Align for action buttons
final
actionButtonsPadding → EdgeInsetsGeometry
Padding for action buttons
final
allowPinchZoom → bool
Allow pinch zoom
final
codeFormat → int
Code format to scan
final
cropPercent → double
Crop percent of the screen, will be ignored if isMultiScan is true
final
hashCode → int
The hash code for this object.
no setterinherited
isMultiScan → bool
Allow multiple scans
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
lensDirection → CameraLensDirection
Camera lens direction
final
loading → Widget
Loading widget while camera is initializing. Default is a black screen
final
multiScanModeAlignment → AlignmentGeometry
Alignment for multi scan mode button
final
multiScanModePadding → EdgeInsetsGeometry
Padding for multi scan mode button
final
onControllerCreated → (dynamic Function(CameraController? controller, Exception? error)?)
Called when the camera controller is created
final
onMultiScan → (dynamic Function(Codes)?)
Called when a code is detected
final
onMultiScanFailure → (dynamic Function(Codes)?)
Called when a code is not detected
final
onMultiScanModeChanged → (dynamic Function(bool)?)
Called when the multi scan mode is changed When set to null, the multi scan mode button will not be displayed
final
onScan → (dynamic Function(Code)?)
Called when a code is detected
final
onScanFailure → (dynamic Function(Code)?)
Called when a code is not detected
final
resolution → ResolutionPreset
Camera resolution
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scanDelay → Duration
Delay between scans when no code is detected
final
scanDelaySuccess → Duration
Delay between scans when a code is detected, will be ignored if isMultiScan is true
final
scannerOverlay → ScannerOverlay?
Custom scanner overlay
final
showFlashlight → bool
Show flashlight button
final
showGallery → bool
Show toggle camera
final
showScannerOverlay → bool
Show cropping rect
final
showToggleCamera → bool
Show toggle camera
final
tryHarder → bool
Try harder to detect a code
final
tryInverted → bool
Try to detect inverted code
final
tryRotate → bool
Try to rotate the image
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<ReaderWidget>
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
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}) → 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