helpers_plethora_flutter 1.0.1

An helpful variety of extensions and enumerations dependent on Flutter.

An helpful variety of extensions and enumerations dependent on Flutter.

Usage

DateTime extension methods

You can determine if a date belongs to a date range:

final DateTime start = DateTime(2022, 7);
final DateTime end = DateTime(2022, 7, 31);
final DateTimeRange range = DateTimeRange(start: start, end: end);
DateTime(2022, 7, 15).belongsTo(range);

DateTimeRange extension methods

You can determine if a date range belongs to another date range:

final DateTimeRange other =
    DateTimeRange(
      start: DateTime(2022),
      end: DateTime(2022, 7, 31),
    );
DateTimeRange(
  start: DateTime(2021, 9),
  end: DateTime(2022),
).belongsTo(other);

You can determine if a date range overlaps, in part or completely, with the other date range:

final DateTimeRange other =
    DateTimeRange(
      start: DateTime(2022),
      end: DateTime(2022, 7, 31),
    );
DateTimeRange(
  start: DateTime(2021, 9),
  end: DateTime(2022, 1, 2),
).overlapsWith(other);

List<DateTimeRange> extension methods

You can get the sum of the duration of all intervals in a list after eliminating all duplicate intervals (which overlap some interval already present in the list).

final DateTimeRange range1 =
    DateTimeRange(start: DateTime(2022), end: DateTime(2022, 7));
final DateTimeRange range2 = DateTimeRange(
  start: DateTime(2022, 1, 25),
  end: DateTime(2022, 4, 7),
);
final DateTimeRange range3 =
    DateTimeRange(start: DateTime(2022, 4, 7), end: DateTime(2022, 7));
final DateTimeRange range4 = DateTimeRange(
  start: DateTime(2022, 5, 2),
  end: DateTime(2022, 6, 15),
);
final DateTimeRange range5 = DateTimeRange(
  start: DateTime(2022, 7, 3),
  end: DateTime(2022, 9, 30),
);
final DateTimeRange range6 =
    DateTimeRange(start: DateTime(2022), end: DateTime(2022, 7));
final DateTimeRange range7 = range5;
<DateTimeRange>[range1, range2, range3, range4, range5].duration.inDays;

You can get the a list of date ranges that covers the entirety of the period of the sum of all date ranges in this list, but without repeating any overlap:

final DateTimeRange range1 =
    DateTimeRange(start: DateTime(2022), end: DateTime(2022, 7));
final DateTimeRange range2 = DateTimeRange(
  start: DateTime(2022, 1, 25),
  end: DateTime(2022, 4, 7),
);
final DateTimeRange range3 =
    DateTimeRange(start: DateTime(2022, 4, 7), end: DateTime(2022, 7));
final DateTimeRange range4 = DateTimeRange(
  start: DateTime(2022, 5, 2),
  end: DateTime(2022, 6, 15),
);
final DateTimeRange range5 = DateTimeRange(
  start: DateTime(2022, 7, 3),
  end: DateTime(2022, 9, 30),
);
<DateTimeRange>[range1, range2, range3, range4, range5].minimize();

TimeOfDay extension methods

You can determine if a time is after another (this > other):

const TimeOfDay(hour: 7, minute: 35)
    .isAfter(const TimeOfDay(hour: 7, minute: 57));

You can determine if a time is before another (this < other):

const TimeOfDay(hour: 12, minute: 20)
    .isBefore(const TimeOfDay(hour: 7, minute: 10));

You can get the string representation of a time:

const TimeOfDay(hour: 7, minute: 15).toStringHm();