ios - 在 swift 3 中单击另一个 TableView 单元格的 Collection View 数据后，如何重新加载 TableView 单元格中的 Collection View 数据？

Question

在这里，我在 TableView 单元格中动态加载 Collection View 数据， TableView 单元格也是在动态 json 数组计数上创建的，在这里选择第一个 TableView 单元格中的 Collection View 中的任何元素后，需要重新加载 Collection View 有了第二个表格 View 单元格中的新数据，任何人都可以帮助我如何在第二个表格 View 单元格 swift 3 中重新加载 Collection View ，如果这不可能，任何人都可以为我提供任何替代布局来实现这个吗？

这是我的行方法单元格

        if indexPath.section == 0 {
           let cell = addToCartTableView.dequeueReusableCell(withIdentifier: "addToCartCollectionCell") as! AddToCartCollectionTableViewCell
            cell.configurableProduct = self.detailModel
            print(self.detailModel)
            cell.collectionView.tag = indexPath.row
            self.addToCartTableView.setNeedsLayout()
            self.addToCartTableView.layoutIfNeeded()
            cell.collectionView.reloadData()
            cell.cellLabel.text = detailModel?.extensionAttribute?.productOptions[indexPath.row].label
            if detailModel?.extensionAttribute?.productOptions[indexPath.row].label == "Size"{
                cell.sizeGuideBtn.isHidden = false
            }else{
                cell.sizeGuideBtn.isHidden = true
            }
            cell.getCurrentRow = indexPath.row
            return cell
        }else {
            let cell = addToCartTableView.dequeueReusableCell(withIdentifier: "addToCartQtyCell") as! AddToCartQuantityTableViewCell
            self.addToCartTableView.setNeedsLayout()
            self.addToCartTableView.layoutIfNeeded()
            cell.QtyLabel.text = "Qty"
            return cell
        }

这是我的表格 View 单元格代码

override func awakeFromNib() {
        super.awakeFromNib()
        collectionView.delegate = self
        collectionView.dataSource = self
        print(getCurrentRow)
        // Initialization code
    }

    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
       return CGSize(width: 50, height: 30)
    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        print(configurableProduct?.extensionAttribute?.productOptions[getCurrentRow].values.count)
        return (configurableProduct?.extensionAttribute?.productOptions[getCurrentRow].values.count)!
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell", for: indexPath) as! AddToCartCollectionViewCell
    if indexPath.item == 0 {
        let items = configurableProduct?.extensionAttribute?.productOptions[getCurrentRow].values[indexPath.row]
        cell.collectionLabel.text =  "\(items?.valueIndex as! Int)"
        if indexPath.item == self.selectedIndex{
            cell.backgroundColor = #colorLiteral(red: 0.007509540026, green: 0.6581087804, blue: 0.01165772038, alpha: 1)
        }else if self.selectedIndex == nil {
            cell.backgroundColor = UIColor.white
        }else{
            cell.backgroundColor = UIColor.white
        }
    }
    else {
        if selectedValue != nil {
            for item in (self.configurableProduct?.extensionAttribute?.productStock)! {
                //                            let jsonStr = "{\"label\":\"57-175\",\"stock\":0}"
                let dict = try! JSONSerialization.jsonObject(with: item.data(using: .utf8)!, options: []) as! [String:Any]
                let labelValue = dict["label"] as! String
                print(labelValue)
                let values:[String] = labelValue.components(separatedBy: "-")
                print(values)
                self.colorNumber = Int(values[0])
                self.sizeNumber = Int(values[1])
                let stock = dict["stock"] as! Int
                let value = selectedValue
                if value == self.colorNumber {
                    if stock != 0 {
                        self.sizeArray.append(self.sizeNumber!)
                        print(self.sizeArray)
                        cell.collectionLabel.text =  "\(self.sizeNumber)"
                    }
                }
            }
            if indexPath.item == self.selectedIndex{
                cell.backgroundColor = #colorLiteral(red: 0.007509540026, green: 0.6581087804, blue: 0.01165772038, alpha: 1)
            }else if self.selectedIndex == nil {
                cell.backgroundColor = UIColor.white
            }else{
                cell.backgroundColor = UIColor.white
            }
        }
        else {
            let items = configurableProduct?.extensionAttribute?.productOptions[getCurrentRow].values[indexPath.item]
            print(items?.valueIndex)
            for item in (self.configurableProduct?.extensionAttribute?.productStock)! {
                //                            let jsonStr = "{\"label\":\"57-175\",\"stock\":0}"
                let dict = try! JSONSerialization.jsonObject(with: item.data(using: .utf8)!, options: []) as! [String:Any]
                let labelValue = dict["label"] as! String
                print(labelValue)
                let values:[String] = labelValue.components(separatedBy: "-")
                print(values)
                self.colorNumber = Int(values[0])
                self.sizeNumber = Int(values[1])
                let stock = dict["stock"] as! Int
                let value = self.selectedIndex
                if value == self.colorNumber {
                    if stock != 0 {
                        self.sizeArray.append(self.sizeNumber!)
                        print(self.sizeArray)
                        cell.collectionLabel.text =  "\(items?.valueIndex as! Int)"
                    }
                }else {
                    cell.collectionLabel.text =  "\(items?.valueIndex as! Int)"
                }
            }
            if indexPath.item == self.selectedIndex{
                cell.backgroundColor = #colorLiteral(red: 0.007509540026, green: 0.6581087804, blue: 0.01165772038, alpha: 1)
            }else if self.selectedIndex == nil {
                cell.backgroundColor = UIColor.white
            }else{
                cell.backgroundColor = UIColor.white
            }
        }
    }
    return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    if collectionView.tag == 0 {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell", for: indexPath) as! AddToCartCollectionViewCell
        cell.backgroundColor = #colorLiteral(red: 0.007509540026, green: 0.6581087804, blue: 0.01165772038, alpha: 1)
        cell.collectionLabel.layer.cornerRadius = 15
        cell.collectionLabel.layer.borderColor = #colorLiteral(red: 0.007509540026, green: 0.6581087804, blue: 0.01165772038, alpha: 1)
        self.dataSelected = true
        self.selectedIndex = indexPath.item
        print(self.selectedIndex)
        self.collectionView.reloadData()
        self.sizeArray.removeAll()
        self.selectedValue = configurableProduct?.extensionAttribute?.productOptions[1].values[indexPath.item].valueIndex
        self.getCurrentRow = 1
        self.collectionView.reloadData()
    print(self.selectedValue)
    }
    else {
        print(collectionView.tag)
    }
}

这是我的布局图

Answer 1

在collection view的didSelectItemAt中，重新加载包含size的table cell

let indexpath = IndexPath(item: value, section: 0)
tableview.reloadRows(at: [indexpath], with: .none)

这里的值是你要更新的行的位置