ScannerView class

基于原始扫描预览 使用简单

Inheritance

Constructors

ScannerView({Key? key, CameraLensFacing? lensFacing, Color? flashOnColor, Color? flashOffColor, double topRatio = 0.3, double leftRatio = 0.1, double widthRatio = 0.8, double heightRatio = 0.4, bool bestFit = true, double? hornStrokeWidth, double? scannerStrokeWidth, bool scannerBox = true, ValueChanged<String>? scanResult, Widget? child, String? flashText, CameraResolution? resolution, Color? borderColor, Color? scannerColor})
const

Properties

bestFit → bool
限制最佳宽高
final
borderColor → Color?
final
child → Widget?
预览顶层添加组件
final
flashOffColor → Color
final
flashOnColor → Color
final
flashText → String?
final
hashCode → int
The hash code for this object.
no setterinherited
heightRatio → double
识别区域的宽高度比例
final
hornStrokeWidth → double?
屏幕宽度比例=leftRatio + widthRatio + leftRatio 屏幕高度比例=topRatio + heightRatio + topRatio 中间线条宽度
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
leftRatio → double
距离屏幕左边
final
lensFacing → CameraLensFacing
相机位置
final
resolution → CameraResolution?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scannerBox → bool
是否显示扫描框
final
scannerColor → Color?
final
scannerStrokeWidth → double?
边框宽度
final
scanResult → ValueChanged<String>?
扫描结果回调
final
topRatio → double
识别区域 比例 0-1 距离屏幕头部
final
widthRatio → double
识别区域的宽高度比例
final

Methods

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