import 'package:intl/intl.dart'; import 'package:selfprivacy/logic/common_enum/common_enum.dart'; import 'package:selfprivacy/logic/models/metrics.dart'; String bottomTitle( final int value, final List data, final Period period, ) { final hhmm = DateFormat('HH:mm'); final day = DateFormat('MMMd'); String res; if (value <= 0 || value >= data.length) { return ''; } final time = data[value].time; switch (period) { case Period.hour: case Period.day: res = hhmm.format(time); break; case Period.month: res = day.format(time); } return res; }