想要在swift3中創建集合視圖

Question

我想用可展開的格式創建uicollectionview。 當我們點擊可擴展的單元格時，應該加載更多單元格的單元格。再次敲打後關閉該部分。 這就像展開和摺疊部分。 部分細胞和內部細胞都是動態的。

Answer 1

你將不得不這樣做。

在全局構建這樣的結構，以便您可以在//表格方法中訪問這些結構。

class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate{ 
    @IBOutlet var tblView: UITableView! 
    let arr = [ "dict1":["1":"one","2":"two"], 
       "dict2":["3":"three","2":"four"], 
    ] as [String : Any] 
    var arrDict = [[String:AnyObject]]() 
    var aDict1 = [String:Any]() 
    var aDict2 = [String:Any]() 
    var aDict3 = [String:Any]() 
    var isbuttonTappedForExpand = false 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     aDict1 = ["Tittle": "Quick Start", 
         "RowKey": "0", 
         "ValueKey": ["Section0 row0", 
             "Section0 row1", 
             "Section0 row2", 
             ] 
         ] as [String : Any] 

     aDict2 = ["Tittle": "Personal", 
         "RowKey": "0", 
         "ValueKey": ["Section0 row1", 
             "Section1 row1", 
             "Section1 row2", 
             ] 
        ] as [String : Any] 

     aDict3 = ["Tittle": "Business", 
         "RowKey": "0", 
         "ValueKey": ["Section0 row2", 
              "Section2 row1", 
              "Section2 row2", 
             ] 
        ] as [String : Any] 

     arrDict.append(aDict1 as [String : AnyObject]) 
     arrDict.append(aDict2 as [String : AnyObject]) 
     arrDict.append(aDict3 as [String : AnyObject]) 

     print("Array of dictionaries is\(arrDict)") 
     print([arr ]) 
     print(arrDict[0]["Tittle"] ?? 2) 
    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
    } 

//Then pass your data into tableview delegate methods 


    func numberOfSections(in tableView: UITableView) -> Int { 

     return arrDict.count 

    } 

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 
     if (arrDict[section]["RowKey"] as? String == "0"){ 
     return 0 
    } 
     else{ 
      return arrDict.count 
      } 
    } 

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell{ 

     let cell:CustomTableViewCell = tableView .dequeueReusableCell(withIdentifier: "cell") as! CustomTableViewCell 
     let arr = arrDict[indexPath.row]["ValueKey"] as! [String] 
     cell.btnClickAddMore.addTarget(self, action: #selector(pressButton(button:)), for: .touchUpInside) 
     return cell 
    } 

    func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat{ 

     return 100 
    } 

//you will have to add sections first after clicking on sections you will get your cell so here you will make your view for section 


    func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int){ 

     view.tintColor = UIColor .black 

    } 

    func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? { 
     let rect = CGRect(x: 0, y: 0, width: tblView.frame.size.width, height: 100) 
     let headerView = UIView(frame:rect) 
     headerView.backgroundColor = .blue 
     let bundle = Bundle(for: type(of: self)) 
     let nib = UINib(nibName: "SectionView", bundle: bundle) 
     let view = nib.instantiate(withOwner: self, options: nil)[0] as! SectionViewClass 
     view.btnClickAdd.backgroundColor = .blue 
     view.btnClickAdd.tag = section 
     view.btnClickAdd.addTarget(self, action: #selector(pressButton(button:)), for: .touchUpInside) 
     view.frame = headerView.bounds 
     view.autoresizingMask = [.flexibleWidth, .flexibleHeight] 
     headerView.addSubview(view) 
     return headerView 
    } 

    func pressButton(button: UIButton) { 

     if (arrDict[button.tag]["RowKey"] as? String == "0") { 

      arrDict[button.tag]["RowKey"] = "1" as AnyObject? 

     } 
     else if (arrDict[button.tag]["RowKey"] as? String == "1") { 

      arrDict[button.tag]["RowKey"] = "0" as AnyObject? 

     } 
     tblView .reloadData() 

    } 
}