将单元格重新加载到另一个视图控制器后如何传递数据

问题描述

我有一个视图控制器，它对第一个视图控制器中的单元格重新排序，但重新排序未反映在第二个视图控制器中。我尝试使用结构来传递数据，但这是不可能的。使用 commonInit 我将详细信息传递给第二个视图控制器

import UIKit
import CoreData

class ViewController: UIViewController,UITableViewDelegate,UITableViewDataSource{
func tableView(_ tableView: UITableView,numberOfRowsInSection section: Int) -> Int
    {
        return name.count
    }
    
    func tableView(_ tableView: UITableView,heightForRowAt indexPath: IndexPath) -> CGFloat {
        return  95
    }
    
    func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell
    {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cellId",for: indexPath) as! PizzaListTableViewCell
      /*  let data = pizza[indexPath.row]
        
        cell.textLabel?.text = data.name
        cell.textLabel?.text = data.miscellaneousText
        cell.textLabel?.text = data.amount */

        cell.commonInit(_imageName: "pizza_\(indexPath.item)",title:name[indexPath.item],text: miscellaneousText[indexPath.item],amount: amount[indexPath.item])
        return cell
    }
    func  tableView(_ tableView: UITableView,didSelectRowAt indexPath: IndexPath) {
        let vc = DetailsVC()
        vc.commonInit("pizza_\(indexPath.item)",amount: amount[indexPath.item],pizzaTextField: pizzaToppings[indexPath.item])
        
        self.navigationController?.pushViewController(vc,animated: true)
        self.tableView.deselectRow(at: indexPath,animated: true)
    }
    func tableView(_ tableView: UITableView,canMoveRowAt indexPath: IndexPath) -> Bool {
        return true
    }
    func tableView(_ tableView: UITableView,moveRowAt sourceIndexPath: IndexPath,to destinationIndexPath: IndexPath) {
        
        let item = name[sourceIndexPath.row]
        name.remove(at: sourceIndexPath.row)
        name.insert(item,at: destinationIndexPath.row)
        
    }
     

下一个视图控制器名称是 DetailsVC()。重新排序不会反映在这个视图控制器中。

import UIKit
import CoreData

class DetailsVC: UIViewController,UIPickerViewDataSource,UIPickerViewDelegate{
    let name = ["Bacon Cheese Fry","Pizza Margherita"]
    let miscellaneousText = ["Accepted","Accepted"]
    let amountArr = ["39.99","39.99"]
     
    @IBOutlet weak var detailImage: UIImageView!
    var imageName: String!
    var titleName: String!
    
    @IBOutlet weak var text: UILabel!
    var textName: String!
    
    var textDescript: String!
    
    @IBOutlet weak var amount: UILabel!
    var amountName: String!
     func commonInit(_ imageName: String,title: String,text: String,amount: String,pizzaTextField:String)
    {
        self.imageName = imageName
        self.title = title
        self.textName = text
        self.amountName = amount
        self.pizzaText = pizzaTextField
       
        
    }

解决方法

func tableView(_ tableView: UITableView,didSelectRowAt indexPath: IndexPath) {
            let storyBoard = UIStoryboard(name: "StoryboardName",bundle: nil)
            let vc =  storyBoard.instantiateViewController(withIdentifier: "yourVCIdentifier") as? DetailsVC
            vc?.commonInit("pizza_\(indexPath.item)",title:name[indexPath.item],text: miscellaneousText[indexPath.item],amount: amount[indexPath.item],pizzaTextField: pizzaToppings[indexPath.item])
            self.navigationController?.pushViewController(vc,animated: true)
            self.tableView.deselectRow(at: indexPath,animated: true)
 }

编辑：

使用 XIB

func tableView(_ tableView: UITableView,didSelectRowAt indexPath: IndexPath) {
                let vc =  DetailVC(nibName: "YourNibName",bundle: nil)
                vc.commonInit("pizza_\(indexPath.item)",pizzaTextField: pizzaToppings[indexPath.item])
                self.navigationController?.pushViewController(vc,animated: true)
                self.tableView.deselectRow(at: indexPath,animated: true)
}