在 iOS Swift 中，在 Swift 4 中的 TableView 中为 CollectionView 集成不同的数组

Posted 2023-03-14

【中文标题】在 iOS Swift 中，在 Swift 4 中的 TableView 中为 CollectionView 集成不同的数组

【英文标题】：In iOS Swift integrate Different array for CollectionView Inside TableView in Swift 4

【发布时间】：2018-08-19 08:01:57

【问题描述】：

如何将 CollectionView 数据设置为 Collection 标签。collection 标签计数不固定。如何在 CollectionView 中集成 cellForItemAt 和 numberOfItemsInSection。所以我在 tableView 中有一个 collectionView。我想使用我的数组中的值来填充每个 collectionViewCell 中的每个标签文本。如果我在 collectionView cellForItemAt 中打印下面的代码。

    class testViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout 


        @IBOutlet weak var providerCategoryTableView: UITableView!

        let collectionReuseIdentifier = "selectServiceProviderCollectioncell" // Collection cell identifier in the storyboard
        let tableReuseIdentifier = "selectServiceProviderTableViewCell"

        var providerCategoryTableViewDictionary = [NSMutableDictionary]()
        var providerCategoryCollectionViewDictionary = [String:Any]()
        var providerCategoryDictionary = [[String:Any]]()


        var ServiceResponse:[[String:Any]] = [id:1,provider_name:”Telephone”,providers:[category_name:”Test1”,id:”1”, category_name:”Test2”,id:”2”]], [id:2,provider_name:”MobileNumber”,providers:[category_name:”Test3”,id:”1”, category_name:”Test2”,id:”2”, category_name:”Test4”,id:”4”, category_name:”Test5”,id:”5”]]


        var setIndexTag:Int = 0
        var cellForItemIndexTag:Int = 0
        var exapandTableViewArray = [Int]()

        override func viewDidLoad() 
            super.viewDidLoad()
            initControls()
        

        // Expand function
        func isExpandable(tableViewHeight:Int) -> Bool 
            for item in exapandTableViewArray 
                if(tableViewHeight == item)
                    return true
                
            
            return false
        

        // MARK: - Private
        func initControls()
            providerCategoryTableView.tableFooterView = UIView()
            callSelectServiceProvidersAPI()
            addServiceProviderLabel.attributedText = GlobalFunctions().addNormalAndBoldText(normalText: NSLocalizedString("RecipientSelectServiceProvidersViewController.addServiceProviderNormalLabel", comment: ""), boldText: NSLocalizedString("RecipientSelectServiceProvidersViewController.addServiceProviderBoldLabel", comment: ""), fontSize : 16.0)
            DontSeeYourServiceUILabel.attributedText = GlobalFunctions().addNormalAndBoldText(normalText: NSLocalizedString("RecipientSelectServiceProvidersViewController.DontSeeYourServiceUINormalLabel", comment: ""), boldText: NSLocalizedString("RecipientSelectServiceProvidersViewController.DontSeeYourServiceUIBoldLabel", comment: ""),fontSize : 16.0)
            suggestAServiceUIView.layer.borderColor = UIColor( red: CGFloat(115/255.0), green: CGFloat(204/255.0), blue: CGFloat(215/255.0), alpha: CGFloat(1.0) ).cgColor

        


        // MARK: - UITableView
        func numberOfSections(in tableView: UITableView) -> Int 
            return 1
        

        func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int 
            return ServiceResponse.count
        

        func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell 
            let cell = tableView.dequeueReusableCell(withIdentifier: tableReuseIdentifier, for: indexPath) as! RecipientSelectServiceProviderTableViewCell
            let providerCategoryObject = selectServiceProviderResponse[indexPath.row]
            cell.categoryNameLabel.text = (providerCategoryObject["name"] as? String)!
            cell.categoryCollectionView.delegate = self
            cell.categoryCollectionView.dataSource = self
            cell.categoryCollectionView.tag = indexPath.row
            cell.categoryCollectionView.reloadData()
            return cell
        

        func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat 
            if(isExpandable(tableViewHeight:indexPath.row))
                return 60
            else
                return 120
            
        

        func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) 
            let selectedCell = tableView.cellForRow(at: indexPath) as! RecipientSelectServiceProviderTableViewCell
            let UpBlueImage = UIImage(named: "up_blue_arrow")
            let UpBlueImageData = UIImagePNGRepresentation(UpBlueImage!)
            let SelectedImageData = UIImagePNGRepresentation((selectedCell.UpDownImageView.image)!)
            if (SelectedImageData == UpBlueImageData)
                exapandTableViewArray.append(indexPath.row)
                selectedCell.UpDownImageView.image = UIImage(named:"down_blue_arrow")
                self.CategoryTableView.beginUpdates()
                self.CategoryTableView.endUpdates()
             else
                if let index = exapandTableViewArray.index(of:indexPath.row) 
                    exapandTableViewArray.remove(at: index)
                
                selectedCell.UpDownImageView.image = UIImage(named:"up_blue_arrow")
                self.CategoryTableView.beginUpdates()
                self.CategoryTableView.endUpdates()
            
        

        // MARK: - UICollectionView
        func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int 
            //return collectioncategories.count
           /* if collectionView.tag == 0
                return collectioncategories.count
            else  if collectionView.tag == 1
                return collectionSecondcategories.count
            */
            for obj in ServiceResponse 
                if collectionView.tag == setIndexTag 
                    let providers:[[String: Any]] = obj["providers"] as! [[String : Any]]
                    return providers.count
                 
                setIndexTag = setIndexTag + 1
            
            return 0
        

        func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell 
            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: collectionReuseIdentifier, for: indexPath) as! RecipientSelectServiceProviderCollectionViewCell
            //cell.categoryUILabel.text = collectioncategories[indexPath.row]
            /*if collectionView.tag == 0
                cell.categoryUILabel.text = collectioncategories[indexPath.row]
            else  if collectionView.tag == 1
                cell.categoryUILabel.text = collectionSecondcategories[indexPath.row]
            */
            for obj in ServiceResponse 
                if collectionView.tag == cellForItemIndexTag 
                    let providers:[[String: Any]] = obj["providers"] as! [[String : Any]]
                    let data = providers[indexPath.row]
                    print("providers",providers[indexPath.row])
                     print("data",data)
                    for provider in providers 
                        print("cellForItemAt provider.name",provider["name"] as! String)
                        cell.categoryUILabel.text! = (provider["name"] as? String)!
                        print("cell.categoryUILabel.text",cell.categoryUILabel.text!)
                    
                
                cellForItemIndexTag = cellForItemIndexTag + 1
            
            return cell
        

      /*  func collectionView(_ collectionView: UICollectionView,layout collectionViewLayout: UICollectionViewLayout,sizeForItemAt indexPath: IndexPath) -> CGSize 
            let nbCol = 3
            let flowLayout = collectionViewLayout as! UICollectionViewFlowLayout
            let totalSpace = flowLayout.sectionInset.left + flowLayout.sectionInset.right + (flowLayout.minimumInteritemSpacing * CGFloat(nbCol - 1))
            let size = Int((collectionView.bounds.width - totalSpace) / CGFloat(nbCol))
            return CGSize(width: size, height: size)
        */







I want 
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int 
        //return collectioncategories.count
       if collectionView.tag == 0
            return collectioncategories.count
        else  if collectionView.tag == 1
            return collectionSecondcategories.count
        


But 0,1....n collectionView.tag not fixed and inside array count also different.Please Its Urgent.Thanks

【问题讨论】：

每个表格视图单元格都应该是该单元格中collectionview的collectionview数据源

But.how to inrate data in collectionview cell

将相关数组设置为 UITableViewCell 子类的属性，并让该子类提供集合视图单元格

【参考方案1】：

我做了一个类似的应用程序，我们所做的是创建一个父数组 即

var tableViewDataArray = [HomeDataHolder] () // which includes the type , sub category in my case myclass contains category name , category id and product array

在此之后为我将每个类别添加到此数组中，添加 dataArry[banners,toppicks,.....]

这是将类对象添加到数组a的方式

if let categoryes = JSON["categories"] as? NSArray
                for index in 0..<categoryes.count
                    self.categoryArray.add(categoryes[index])
                
                print(self.categoryArray)
                self.session.saveCategory(self.categoryArray)

                let catObject = HomeDataHolder(type:"CATEGORY").addCategoryes(categoryArray: self.categoryArray)
                self.tableViewDataArray.append(catObject)


            

将 tableview 数据源设置为此数组 如果您需要不同的类型设计设计不同的单元格

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell 
    let homeData = tableViewDataArray[indexPath.row] as! HomeDataHolder
    if homeData.type == "CATEGORY"
        let cell = tableView.dequeueReusableCell(withIdentifier: "category_name_cell", for: indexPath) as! HomeCategoryTableViewCell
        cell.selectionStyle = .none
        let dataArray = homeData.dataArray
        cell.setProducArray(dataArray!)
        cell.delegate = self
        return cell
    else if .......

在我的 HomeCategoryTableViewCell 类中

func setProducArray(_ data:NSMutableArray)
    for index in 0..<data.count
        dataArray.add(data[index])

    

    colectionView.reloadData()

func numberOfSections(in collectionView: UICollectionView) -> Int 
    return 1


func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int 
    return dataArray.count

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell 
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "home_categoryes_cellection_cell", for: indexPath) as! HomeCategoriesCollectionViewCell
    if let dataDictionary = dataArray[indexPath.row] as? NSDictionary
        utility.setCornerRadius([cell.containerView], cornerRadies: 19)
        cell.categoryNameLabel.text = dataDictionary.getStringValue("name")
        print(dataDictionary.getStringValue("name"))

    

    return cell

我的 HomeCategoryTableViewCell 包含一个集合视图 cell.setProducArray(dataArray!) 将更改集合视图的数据源

【讨论】：

您必须在 tableview 单元格中添加集合视图委托方法

medium.com/@gargankit476/… 浏览此链接

【参考方案2】：

在 TableView 的 cellForRow 中，使用 viewWithTag 访问 collectionView，然后在 accessiblityHint 属性中为其提供 indexPath.row 并调用 reload。然后在 collectionView 的 numberOfSections、numberOfItems 或 cellForItem 方法中，您可以访问 accessiblityHint 属性并访问数组的索引以显示您想要的数据。