clear method
Clears all preferences from the platform.
If no parameters
are provided, and SharedPreferencesAsync has no filter,
all preferences will be removed. This may include values not set by this instance,
such as those stored by native code or by other packages using
shared_preferences internally, which may cause unintended side effects.
It is highly recommended that an allowList
be provided to this call.
Implementation
Future<void> clear({Set<String>? allowList}) {
final ClearPreferencesParameters parameters = ClearPreferencesParameters(
filter: PreferencesFilters(allowList: allowList));
return _platform.clear(parameters, _options);
}