Pie<T> class

Inheritance

Constructors

Pie({required List<T> data, required ChartPosition<T> position, List<Color> colors = colors10, List<Shader>? shaders, double holeRadius = 0, TextStyle textStyle = const TextStyle(fontSize: 12, color: Colors.grey), TextStyle legendTextStyle = const TextStyle(fontSize: 12, color: Colors.black, fontWeight: FontWeight.bold), Color lineColor = Colors.grey, double? spaceWidth, double valueTextOffset = 0, PieValueFormatter? valueFormatter, PieValueFormatter? legendFormatter, TextStyle? centerTextStyle, RotateDirection direction = RotateDirection.forward, bool guideLine = false, bool showValue = false, bool enableTap = true, double startAngle = 0})

Properties

centerTextStyle → TextStyle?
中间文案样式 为空则不显示
final
chartState ↔ ChartLayoutState
图表的布局状态
getter/setter pairinherited
colors → List<Color>
颜色
final
controller ↔ ChartController
getter/setter pairinherited
data → List<T>
数据源
finalinherited
direction → RotateDirection
扇形的方向
final
enableTap → bool
是否能点击
final
guideLine → bool
是否显示引导线
final
hashCode → int
The hash code for this object.
no setterinherited
holeRadius → double
内圆半径
final
index ↔ int
在图表中的位置
getter/setter pairinherited
isInit ↔ bool
getter/setter pairinherited
legendFormatter → PieValueFormatter?
图例文案格式化 不要使用过于耗时的方法
final
legendTextStyle → TextStyle
图例样式
final
lineColor → Color
引导线颜色
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
shaders → List<Shader>?
优先级高于colors
final
showValue → bool
是否在图中显示value
final
spaceWidth → double?
百分比
final
startAngle → double
开始弧度，可以调整起始位置
final
textStyle → TextStyle
值文字样式
final
valueFormatter → PieValueFormatter?
值文案格式化 不要使用过于耗时的方法
final
valueTextOffset → double
值的位置偏移
final
yAxisPosition → int
跟哪个y轴关联
finalinherited

Methods

draw(Canvas canvas, ChartsState state) → void
drawPie(Canvas canvas, Path path, Paint paint) → void
可以重写，依靠path和paint修改成特殊的样式
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
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