clear method

@override FutureOr<void> clear()

Clears all keys and values from storage.

Implementation

@override
FutureOr<void> clear() async {
  // Duck-typing support for shared_preferences getKeys and remove.
  // ignore: avoid_dynamic_calls
  final dynamic rawKeys = _prefs.getKeys();
  if (rawKeys is Iterable) {
    final keys = rawKeys.map((dynamic e) => e.toString()).toList();
    for (final key in keys) {
      if (prefix.isEmpty || key.startsWith(prefix)) {
        // Duck-typing support for shared_preferences remove.
        // ignore: avoid_dynamic_calls
        await _prefs.remove(key);
      }
    }
  }
}