ScanView class

Inheritance

Constructors

ScanView({Key? key, required ScanEvent onScan, required Size viewSize, Rect? scanRect, Size? scanSize, Alignment scanAilgn = Alignment.topLeft, Alignment viewAilgn = Alignment.topLeft, required double devicePixelRatio, Color? maskColor, List<ScanType> scanType = const [ScanType.ALL], bool autoScan = true, bool continuityScan = false, Duration scanInterval = const Duration(milliseconds: 500)})
const

Properties

autoScan → bool
是否立即扫描
final
continuityScan → bool
是否连续扫描
final
devicePixelRatio → double
屏幕分辨率
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maskColor → Color?
final
onScan → ScanEvent
扫描事件
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scanAilgn → Alignment
扫描框的位置(位于图片)
final
scanInterval → Duration
连续扫描间隔
final
scanRect → Rect?
扫描区域位置大小
final
scanSize → Size?
扫描区域大小
final
scanType → List<ScanType>
扫描的条码类型
final
viewAilgn → Alignment
view的位置(位于图片)
final
viewSize → Size
ScanView控件大小
final

Methods

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