Swift 从 UICollectionViewCell 导航到 UIViewController

Question

我有麻烦了！我需要以编程方式设置从 UICollectionViewCell (EVRecordingDetailsCollectionViewCell) 到 UIViewController (EVPersonalDataViewController) 的导航。

我试过这种方式..但它说 CollectionViewCell 没有成员“存在”

let showloginViewController = EVPersonalDataViewController()
        let ncShowloginViewController = UINavigationController(rootViewController: showloginViewController)
        self.present(ncShowloginViewController, animated: true, completion: nil)

Answer 1

函数 present(UIViewController, Bool, (() -> Void)) 是 UIViewController 的成员，而不是 UICollectionViewCell。

这样用

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "yourCellId", for: indexPath) as! CustomCell
    cell.parentViewController = self
    // your cell setup...
    return cell
}

在你的单元格类中保持对你的 UIViewController 的弱引用

class CustomCell: UICollectionViewCell {

    weak var parentViewController: UIViewController?

    @IBAction func onClickButton(sender: UIButton) {
        let showloginViewController = EVPersonalDataViewController()
        let ncShowloginViewController = UINavigationController(rootViewController: showloginViewController)
        parentViewController?.present(ncShowloginViewController, animated: true, completion: nil)
    }
}