ios - 如何从 UICollectionViewCell 中的 UITableViewCell 内部推送 View ？

Question

我有一个UITableView UICollectionViewCell 里面我正在尝试从 UITableViewCell 推出新的 View tableView(_:didSelectRowAt:)里面方法。但是，我无法访问 navigationController 。我将如何导航到新 View ？

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    var item = Item(name: "")

    switch indexPath.section {
    case 0:
        item = array1![indexPath.item]
    case 1:
        item = array2![indexPath.item]
    default:
        break
    }

    let layout = UICollectionViewFlowLayout()
    let newView = NewCollectionView(collectionViewLayout: layout)
    newView.itemOfInterest = item

    // Can't reference navigationController
}

Answer 1

获取当前 View 的父 Controller -

//MARK: get parent controller...
extension UIView {
    var parentViewController: UIViewController? {
        var parentResponder: UIResponder? = self
        while parentResponder != nil {
            parentResponder = parentResponder!.next
            if let viewController = parentResponder as? UIViewController {
                return viewController
            }
        }
        return nil
    }
}

用法:-获取 navigationController 引用为 parentViewController?.navigationController

let viewController = GymLearnMoreViewController(nibName: "GymLearnMoreViewController", bundle: nil) //Your View controller instance
parentViewController?.navigationController?.pushViewController(viewController, animated: true)

来源苹果:-

https://developer.apple.com/documentation/uikit/uiresponder/1621099-next https://developer.apple.com/documentation/uikit/uiresponder?changes=_9