deleteAll method

@override Future<void> deleteAll(List<String> keys)

Deletes multiple values associated with the given keys.

Throws a CacheException if there is an error deleting the data.

Implementation

@override
Future<void> deleteAll(List<String> keys) async {
  final p = await prefs;
  for (final key in keys) {
    await p.remove(_getKey(key));
  }
}