MobileScanner class

This widget displays a live camera preview for the barcode scanner.

Inheritance

Constructors

MobileScanner({MobileScannerController? controller, void onDetect(BarcodeCapture barcodes)?, BoxFit fit = BoxFit.cover, MobileScannerErrorBuilder? errorBuilder, LayoutWidgetBuilder? overlayBuilder, Widget placeholderBuilder(BuildContext, Widget?)?, Rect? scanWindow, double scanWindowUpdateThreshold = 0.0, Key? key})
Create a new MobileScanner using the provided controller.
const

Properties

controller → MobileScannerController?
The controller for the camera preview.
final
errorBuilder → MobileScannerErrorBuilder?
The error builder for the camera preview.
final
fit → BoxFit
The BoxFit for the camera preview.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onDetect → (void Function(BarcodeCapture barcodes)?)
The function that signals when new codes were detected by the controller. If null, use the controller.barcodes stream directly to capture barcodes.
final
overlayBuilder → LayoutWidgetBuilder?
The builder for the overlay above the camera preview.
final
placeholderBuilder → (Widget Function(BuildContext, Widget?)?)
The placeholder builder for the camera preview.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scanWindow → Rect?
The scan window rectangle for the barcode scanner.
final
scanWindowUpdateThreshold → double
The threshold for updates to the scanWindow.
final

Methods

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