Question

我目前有一个Tableview，当用户单击时，会将其发送到一个新的ViewController，该ViewController将显示一张图片。但是，由于我需要它们能够滑动以显示与第一张图片关联的第二张图片（取决于所选的行），因此我试图创建一个要发送的数组。我（认为？）已经成功创建了一个数组，但是由于无法正确“发送”代码，我遇到了问题。我想知道哪里错了，需要进行哪些更改才能发送阵列，以便用户可以滑动并查看第二张图片。如果您需要更多代码，请告诉我，我将在其中对其进行编辑。谢谢！

let firstchoice: [UIImage] = [
    UIImage(named: "Appa1")!,
    UIImage(named: "Appa2")!
    ]


func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
{
    ///Right way here
    ///You can easily manage using this
    let Vc = self.storyboard?.instantiateViewController(withIdentifier: "imageViewController") as! imageViewController



    ///Here you have written four Animal names in Array
    ///So There is going to four case 0,1,2,3 and a default case
    switch indexPath.row
    {
    case 0:
        Vc.passedImage = UIImage.init(named: firstchoice)
        self.navigationController?.pushViewController(Vc, animated: true)
        break;
    case 1:
        Vc.passedImage = UIImage.init(named: "AppA2")!
        self.navigationController?.pushViewController(Vc, animated: true)
        break;
    case 2:
        Vc.passedImage = UIImage.init(named: "AppB")!
        self.navigationController?.pushViewController(Vc, animated: true)
        break;
    case 3:
        Vc.passedImage = UIImage.init(named: "AppC")!
        self.navigationController?.pushViewController(Vc, animated: true)
        break;
    case 4:
        Vc.passedImage = UIImage.init(named: "AppD")!
        self.navigationController?.pushViewController(Vc, animated: true)
        break;
    case 5:
        Vc.passedImage = UIImage.init(named: "AppE")!
        self.navigationController?.pushViewController(Vc, animated: true)
        break;

图像视图控制器：

import UIKit
import GoogleMobileAds


class imageViewController: UIViewController,GADBannerViewDelegate, UIGestureRecognizerDelegate, UIScrollViewDelegate {

    var bannerView: GADBannerView!

    @IBOutlet weak var scrollView: UIScrollView!
    @IBOutlet weak var myImageView: UIImageView!


    //var passedImage : UIImage! = nil
    var passedImage : [UIImage]


    override func viewDidLoad(){
        super.viewDidLoad()
        self.myImageView.image = passedImage
        self.navigationController?.navigationBar.isHidden = false

        scrollView.minimumZoomScale = 1.0
        scrollView.maximumZoomScale = 5.0

Answer 1

您的passedImage似乎是UIImage中的imageViewController变量。您需要做的是将其更改为[UIImage]。这将使您存储图像阵列。

之后，您switch看起来像这样。

switch indexPath.row {
    case 0:
        Vc.passedImage = firstchoice
        self.navigationController?.pushViewController(Vc, animated: true)
        break;
    case 1:
        Vc.passedImage = [UIImage.init(named: "AppA2")!]
        self.navigationController?.pushViewController(Vc, animated: true)
        break;
    case 2:
    // Rest of your cases follow suit.
}

您需要使用其各自的索引访问图像阵列中的图像。

旁注：对变量名使用 lowerCamelCase ，就像在Swift naming conventions中所说的那样。

将图像数组发送到新的视图控制器

1 个答案: