TableView 在新控制器上显示不同的图像 [英] TableView to display different images on new controller

问题描述

我终于创建了一个 tableview，它将填充一定数量的选项供用户点击.理想情况下，我希望用户单击一行，这将根据用户所做的选择在第二个控制器上显示图像.例如，"photo1" 会在控制器 B 上显示 1 张图片，而 "photo 2" 会在控制器 B 上显示不同的图片.我可以在现有的代码中实现哪些代码?表视图代码发送到第二个控制器?

I have finally created a tableview that will be populated with a certain amount of options for the user to click. Ideally, I would like the user to click a row, which will display a image on a second controller depending on the choice the user makes. For instance, "photo1" would display 1 picture on Controller B, while "photo 2" would display a different picture on Controller B. What code can I implement into my existing table view code to send to the second controller?

import UIKit

class adultcardiaclist: UITableViewController {

    let adultcardiac = ["photo1", "photo2", "photo3"]



    override func viewDidLoad() {
        super.viewDidLoad()


    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    // MARK: - Table view data source

    override func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return adultcardiac.count
    }

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "transportCell", for: indexPath)

        cell.textLabel?.text = adultcardiac[indexPath.row]

        return cell
    } 
}

推荐答案

可以利用 TableView Conroller 中提供的 Default Delegate

You can make use of Default Delegate provided in TableView Conroller

 import UIKit

class CustomTableController: UITableViewController {

    let adultcardiac = ["photo1", "photo2", "photo3"]

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

    // MARK: - Table view data source
    override func numberOfSections(in tableView: UITableView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return 1
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        return adultcardiac.count
    }


    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "transportCell", for: indexPath)

        cell.textLabel?.text = adultcardiac[indexPath.row]

        return cell
    }

    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
    {
        let Vc = self.storyboard?.instantiateViewController(withIdentifier: "imageVC") as! imageVC

        switch indexPath.row
        {
        case 0:
            Vc.passedImage = UIImage.init(named: "screenShot")!
            self.navigationController?.pushViewController(Vc, animated: true)
            break;
        case 1:
            Vc.passedImage = UIImage.init(named: "screenShot1")!
            self.navigationController?.pushViewController(Vc, animated: true)
            break;
        case 2:
            Vc.passedImage = UIImage.init(named: "screenShot2")!
            self.navigationController?.pushViewController(Vc, animated: true)
            break;
        default:
            Vc.passedImage = UIImage.init(named: "screenShot")!
            self.navigationController?.pushViewController(Vc, animated: true)
        }
    }
}

--> 我的 imageVC 类

import UIKit

class imageVC: UIViewController {

    @IBOutlet weak var myImageView: UIImageView!

    var passedImage : UIImage! = nil

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.

        self.myImageView.image = passedImage
    }
}

--> 输出

---> 当 TableView 控制器加载到内存堆栈中时

---> When TableView Controller Loaded in memory Stack

--> 当一行被选中

--> 当 DidSelect 执行并显示结果时 - New ImageVc with Passed Image

--> when DidSelect Execute and displays result - New ImageVc with passed Image

--> 我的故事板

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