问Realm无法解密后台线程中的数据库错误

EN

  class func updateRealmWithBlockInBackground(block: () -> Void) {
    let priority = DISPATCH_QUEUE_PRIORITY_DEFAULT
    dispatch_async(dispatch_get_global_queue(priority, 0)) {
        do {
          let config = RLMRealmConfiguration.defaultConfiguration()
          config.encryptionKey = Utils.getKey()
          let realm = try RLMRealm(configuration: config)

          realm.beginWriteTransaction()
          block()
          realm.commitWriteTransaction()

        } catch {
          dispatch_async(dispatch_get_main_queue(), {
            TXNotificationSystem.postGlobalNotification(text: "\(error)", textColor: UIColor.redColor())
          })
        }
    }
  }