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归档HMUserAccount

• iOS存储数据的方式
  • 直接写到本地(Plist)
  • NSUserDefaults
  • 归档和解档(对象)
  • Sqlite(数据库)
  • CoreData

归档和解档

• 实现 NSCoding 协议

  class HMUserAccount: NSObject, NSCoding
  

• 实现协议方法

  // MARK: - 归档和解档
  /// 归档
  func encode(with aCoder: NSCoder) {
    aCoder.encode(access_token, forKey: "access_token")
    aCoder.encode(uid, forKey: "uid")
    aCoder.encode(expires_in, forKey: "expires_in")
    aCoder.encode(expiresDate, forKey: "expiresDate")
  }
  

  /// 解档
  required init?(coder aDecoder: NSCoder) {
    access_token = aDecoder.decodeObject(forKey: "access_token") as? String
    uid = aDecoder.decodeObject(forKey: "uid") as? String
    expires_in = aDecoder.decodeDouble(forKey: "expires_in")
    expiresDate = aDecoder.decodeObject(forKey: "expiresDate") as? Date
  }
  

• 在 HMUserAccountViewModel 定义归档路径

  /// 归档路径
  var accountPath = (NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true).last! as NSString).stringByAppendingPathComponent("userAccount.plist")
  

• 在 HMUserAccountViewModel 归档 CZUserAccount 保存账户信息

  ///  保存账户信息
  private func saveUserAccount() {
    if userAccount != nil {
         NSKeyedArchiver.archiveRootObject(userAccount!, toFile: accountPath)
    }
  }
  

  // MARK: - 加载Access Token
  func loadAccessToken(code: String) {
    ...
  
    HMNetworkTool.shared.request(method: HMNetworkMethod.POST, URLString: urlString, parameters: parameters, progress: nil, success: { (_, result) in
        print("result = \(result)")
        let dict = result as! [String: Any]
  
        // 字典转模型
        self.userAccount = HMUserAccount(dict: dict)
        print("userAccount = \(self.userAccount)")
  
        // 保存账户信息
        self.saveUserAccount()
    }) { (_, error) in
        print("error: \(error)")
    }
  }