multiLevelLabelFormatter property
Called while rendering each multi-level label.
Provides label text, the actual level of the label, index, and
text styles such as color, font size, etc using MultiLevelLabelRenderDetails
class.
You can customize the text and text style using ChartAxisLabel
class
and can return it.
Defaults to null
.
Widget build(BuildContext context) {
return Container(
child: SfCartesianChart(
primaryXAxis: NumericAxis(
multiLevelLabelFormatter: (MultiLevelLabelRenderDetails details) {
if (details.index == 1) {
return ChartAxisLabel('Text', details.textStyle);
} else {
return ChartAxisLabel(details.text, details.textStyle);
}
},
multiLevelLabels: const <NumericMultiLevelLabel>[
NumericMultiLevelLabel(
start: 0,
end: 2,
text: 'First'
),
NumericMultiLevelLabel(
start: 2,
end: 4,
text: 'Second'
)
]
)
)
);
}
Implementation
final MultiLevelLabelFormatterCallback? multiLevelLabelFormatter;