remove method

Future remove(
  1. String key
)

清除**********************///

Implementation

Future remove(String key) {
  if(_storageType == StorageType.HIVE){
    return _realEncryptBox.delete(key);
  }else if(_storageType == StorageType.SP){
    if(_encrypt){
      return _prefs.remove(_realEncrypt.encrypt(key).base64);
    }else{
      return _prefs.clear();
    }
  }
  return Future.value(false);
}