TooltipTextFormatterCallback typedef

TooltipTextFormatterCallback = String Function(dynamic actualValue, String formattedText)

Signature for formatting or changing the whole tooltip label text.

Implementation

typedef TooltipTextFormatterCallback = String Function(
  /// actualValue will be either [DateTime] or [double]
  /// based on given [values].
  dynamic actualValue,

  /// If the actual value is [double], it is formatted by [numberFormat] and
  /// if the actual value is [DateTime], it is formatted by [dateFormat].
  String formattedText,
);