overlayInfo property
OverlayInfoGetter?
overlayInfo
final
How the overlay info are displayed, when user touches the chart.
If null, it defaults to display date
, open
, high
, low
, close
and volume
fields when user selects a data point in the chart.
To customize it, pass in a function that returns a Map<String,String>:
return {
"Date": "Customized date string goes here",
"Open": candle.open?.toStringAsFixed(2) ?? "-",
"Close": candle.close?.toStringAsFixed(2) ?? "-",
};
Implementation
final OverlayInfoGetter? overlayInfo;