init method
Implementation
@override
Future<void> init() async {
final sharedPrefs = await SharedPreferences.getInstance();
final keys = sharedPrefs.getKeys();
for (final key in keys) {
if (!key.startsWith(_eventKeyPrefix)) continue;
final value = sharedPrefs.get(key);
if (value is String) _events[key] = value;
}
return super.init();
}