LabelAnnotation class

@author jd

Inheritance

• Object
• Annotation
• LabelAnnotation

Constructors

LabelAnnotation({dynamic userInfo, ValueChanged<Annotation>? onTap, bool fixed = false, int yAxisPosition = 0, double? minZoomVisible, double? maxZoomVisible, required String text, List<num>? positions, Offset anchor(Size)?, Offset offset = Offset.zero, TextAlign textAlign = TextAlign.start, TextStyle textStyle = const TextStyle(color: Colors.red)})

Properties

anchor → (Offset Function(Size)?)

设置Annotation的偏移，忽略positions的设置

final

fixed → bool

是否滚动

final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

isInit ↔ bool

getter/setter pair, inherited

maxZoomVisible → double?

大于该缩放级别则隐藏

final, inherited

minZoomVisible → double?

小于该缩放级别则隐藏

final, inherited

offset → Offset

偏移，可以做细微调整

final

onTap → ValueChanged<Annotation>?

标注可以点击

final, inherited

positions → List<num>?

两个长度的数组，优先级最高，ImageAnnotation的位置，对应xy轴的value

final

rect ↔ Rect?

所在的区域

getter/setter pair, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

text → String

内容

final

textAlign → TextAlign

对齐方式

final

textStyle → TextStyle

文本风格

final

userInfo → dynamic

携带额外信息

final, inherited

yAxisPosition → int

跟哪个y轴关联

final, inherited

Methods

draw(Canvas canvas, ChartsState state) → void

init(ChartsState state) → void

初始化 耗时的方法都可以放到这里

isNeedDraw(ChartsState state) → bool

是否需要绘制

inherited

isRange(Offset point) → bool

判断point是否在此Annotation范围内

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited