Bar<T> class

@author JD 普通bar

Inheritance

Constructors

Bar({required List<T> data, required BarPosition value, required ChartPosition<T> position, BarValueFormatter? valueFormatter, Offset valueOffset = Offset.zero, TextStyle textStyle = const TextStyle(fontSize: 10, color: Colors.black), int yAxisPosition = 0, double itemWidth = 20, Color color = Colors.blue, List<Color>? colors, Shader? shader, Color? highlightColor = Colors.yellow})

Properties

chartState ↔ ChartLayoutState
图表的布局状态
getter/setter pairinherited
color → Color
颜色 如果设置了colors 则color不会生效
final
colors → List<Color>?
bar 颜色
final
controller ↔ ChartController
getter/setter pairinherited
data → List<T>
数据源
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
highlightColor → Color?
高亮颜色
final
index ↔ int
在图表中的位置
getter/setter pairinherited
isInit ↔ bool
getter/setter pairinherited
itemWidth → double
bar的宽度
final
position → ChartPosition<T>
不要使用过于耗时的方法 数据在坐标系的位置，每个坐标系下取值逻辑不一样，在line和bar下是相对于每格的值，比如xAxis的interval为1，你的数据放在1列和2列中间，那么position就是0.5，在pie下是比例
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
shader → Shader?
优先级高于color
final
textStyle → TextStyle
值文字样式
final
value → BarPosition
值格式化 不要使用过于耗时的方法
final
valueFormatter → BarValueFormatter?
值文案格式化 不要使用过于耗时的方法
final
valueOffset → Offset
文案偏移
final
yAxisPosition → int
跟哪个y轴关联
finalinherited

Methods

draw(Canvas canvas, ChartsState state) → void
getLastData(bool need) → List<ChartItemLayoutState>?
inherited
init(ChartsState state) → void
初始化 耗时的方法都可以放到这里
inherited
lerpList(List<num>? a, List<num>? b, double t) → List<num>?
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