UITableView與部分和Swift中的自定義對象

我正在尋找使用自定義對象填充UITableView，而不必使用多維數組來處理這些部分。我想我所缺少的是一種將對象進行排序的邏輯。該對象基本上是一個字典，我有var section: Int或者設置爲0或1。這些對象當前存儲在數組中並加載到表視圖中。其他變量是各種各樣的信息。UITableView與部分和Swift中的自定義對象

我有一個對象，看起來像這樣：

class MenuModel { 
    var displayText: String 
    var displayImage: UIImage 
    var location: String 
    var otherData: String 
    var section: Int 
}

調用是這樣的：

let bc = MenuModel(displayText: "Basic Commands", displayImage: UIImage(named: "[email protected]")!, location: "commands", otherData: "", section: 0) 
self.MenuList.append(bc)  //Right now I'm appending it to an array called MenuList

我如何可以訪問MenuModel.section並得到一個結果的對象爲那些部分進行排序0或1？這是否需要在tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int

這部分是更具體到我目前的實施。這並不完美（現在甚至可以正常工作）界面已更新並且看起來很開心，但是，即使完成處理程序只運行一次，MenuList陣列也會呈現四次。

這是我正在運行的代碼。基本上有兩個網絡呼叫，一個呼叫到Firebase，一個呼叫通過Alamofire。

public func ConstructMenu(completion: (Bool) ->()) { 

    if let user = FIRAuth.auth()?.currentUser { 
      // User is signed in. 

      GlobalFirebase.UserRef.child(user.uid).observeSingleEventOfType(.Value, withBlock: { (snapshot) in 
       let serverAdmin = snapshot.value!["serverAdmin"] as! String 
       if serverAdmin != "none" { 

        self.log.info("User as a Server Admin signed in") 

        let bc = MenuModel(displayText: "Basic Commands", displayImage: UIImage(named: "[email protected]")!, location: "commands", otherData: "", section: 0) 
        let ca = MenuModel(displayText: "Console Access", displayImage: UIImage(named: "[email protected]")!, location: "console", otherData: "", section: 0) 
        let sm = MenuModel(displayText: "Server Management", displayImage: UIImage(named: "[email protected]")!, location: "management", otherData: "", section: 0) 
        let cs = MenuModel(displayText: "Connect and Share", displayImage: UIImage(named: "[email protected]")!, location: "connect", otherData: "", section: 0) 

        self.MenuList.append(bc, ca, sm, cs) 
        completion(true) 


       } else { 

        self.log.info("User not a Server Admin signed in") 

        let ns = MenuModel(displayText: "New Server", displayImage: UIImage(named: "[email protected]")!, location: "makeServer", otherData: "", section: 0) 

        self.MenuList.append(ns) 
        completion(true) 
       } 
      }) 

     } else { 
      self.log.info("No user is signed in.") 

      let ns = MenuModel(displayText: "New Server", displayImage: UIImage(named: "[email protected]")!, location: "makeServer", otherData: "", section: 0) 

      self.MenuList.append(ns) 
      completion(true) 

     } 

    //Check for Other Archetype Servers 

    //Query Multicraft 
    let commandDictionary = [ "APIuser" : GlobalConstants.MulticraftAPIUser, 
           "APIkey" : "\(GlobalConstants.MulticraftAPIKey)", 
           "APIreq" : "listServers"] 

    Alamofire.request(.POST, "\(GlobalConstants.MulticraftAPIURL)tworeq.php", parameters: commandDictionary) 
     .responseJSON(){ response in 
      self.log.info("Request: \(response.result.value)") 
      if let _ = response.result.value { 

       if (JSON(response.result.value!)["success"] == true) { 

        let json = JSON(response.result.value!) 
        // self.log.verbose(json["data"]["Servers"].dictionaryValue) 

        for (key, value) in json["data"]["Servers"].dictionaryValue { 
         self.log.verbose("\"\(key) : \(value.string!)\"") 

         var name = "\(value.string!)" 
         var serverID = "\(key)" 
         var image = UIImage(named: "server_\(Int(arc4random_uniform(4) + 1))")! 

         var item = MenuModel(displayText: name, displayImage: image, location: "serverInfo", otherData: serverID, section: 1) 

         self.MenuList.append(item) 


        } 

        completion(true) 
       } //If result succeeds 
    } 
} // Alamofire Request 

}

，我調用該代碼：

override public func viewWillAppear(animated: Bool) { 

    MenuList.removeAll() 
    self.ConstructMenu() {completion in completion 
     if completion == true { 
      self.tableView.reloadData() 
      print("Menu Setup Completed") 
     } else { 
      self.tableView.reloadData() 
      print("Menu Setup Failed") 
     } 
    }

來源

2016-10-07 ErrorCode3000

您可以快速篩選菜單列表陣列通過與過濾方法部分 - 它會是這樣的： let sectionZero = menuList.filter { (model) -> Bool in return model.section == 0 } let sectionOne = menuList.filter { (model) -> Bool in return model.section == 1 }

如果你經常重新加載menuList和tableView，這可能會很痛苦，但如果你不想擁有一個多維數組，這是可行的。

來源

2016-10-07 16:31:18 creeperspeak

謝謝！這個方法取得了訣竅。我不得不將它添加到幾個不同的地方，以使UI匹配，但我期待着。：] – ErrorCode3000

UITableView與部分和Swift中的自定義對象

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