Intl class

The Intl class provides a common entry point for internationalization related tasks. An Intl instance can be created for a particular locale and used to create a date format via anIntl.date(). Static methods on this class are also used in message formatting.

Examples:

String today(DateTime date) => Intl.message(
      "Today's date is $date",
      name: 'today',
      args: [date],
      desc: 'Indicate the current date',
      examples: const {'date': 'June 8, 2012'},
    );
print(today(DateTime.now().toString());

String howManyPeople(int numberOfPeople, String place) => Intl.plural(
      numberOfPeople,
      zero: 'I see no one at all in $place.',
      one: 'I see $numberOfPeople other person in $place.',
      other: 'I see $numberOfPeople other people in $place.',
      name: 'howManyPeople',
      args: [numberOfPeople, place],
      desc: 'Description of how many people are seen in a place.',
      examples: const {'numberOfPeople': 3, 'place': 'London'},
    );

Calling howManyPeople(2, 'Athens'); would produce "I see 2 other people in Athens." as output in the default locale. If run in a different locale it would produce appropriately translated output.

You can set the default locale.

Intl.defaultLocale = 'pt_BR';