prependHistory method

void prependHistory(
  1. List<KLineData> values
)

Implementation

void prependHistory(List<KLineData> values) {
  if (values.isEmpty) return;

  final previousLength = _data.length;
  _data.insertAll(0, values);
  _notifyDataChanged(KLineDataChange(
    type: KLineDataChangeType.prependHistory,
    previousLength: previousLength,
    newLength: _data.length,
    addedCount: values.length,
  ));
}