Question

当我单击collectionviewcell时，我很难解散viewController。所以我的collectionview放在uiview内，然后显示在viewcontroller中。每当用户单击collectionViewCell时，我都希望视图触发放置在viewcontroller内的bye（）函数。我添加print（“ bye”）只是为了查看它是否有效，它确实会打印单词，但不会执行Blob 0 average value: true=0.75, estimated=0.75 Blob 1 average value: true=0.63, estimated=0.63 Blob 2 average value: true=0.50, estimated=0.49来关闭uiview和collectionview的viewcontroller。为什么不解雇控制器？还有另一种我可以做同样的事情吗？这是代码：

视图控制器

dismiss(animated: true, completion: nil)

这是collectionView代码和uiview

class sideViewController: UIViewController {

    let dismissBtn:UIButton = {
       let content = UIButton()
        content.backgroundColor = .green
        content.addTarget(self, action: #selector(bye), for: .touchUpInside)
        return content
    }()

    let sideTableViews: sideCollectionView = {
       let content = sideCollectionView()
        return content
    }()

    override func viewDidLoad() {
        super.viewDidLoad()

        dismissBtn.translatesAutoresizingMaskIntoConstraints = false
        sideTableViews.translatesAutoresizingMaskIntoConstraints = false

        view.addSubview(dismissBtn)
        view.addSubview(sideTableViews)

        dismissBtn.topAnchor.constraint(equalTo: view.topAnchor, constant: 20).isActive = true
        dismissBtn.rightAnchor.constraint(equalTo: view.rightAnchor, constant: -10).isActive = true
        dismissBtn.widthAnchor.constraint(equalToConstant:40).isActive = true
        dismissBtn.heightAnchor.constraint(equalToConstant: 40).isActive = true

        sideTableViews.topAnchor.constraint(equalTo: dismissBtn.bottomAnchor, constant: 30).isActive = true
        sideTableViews.centerXAnchor.constraint(equalTo: view.centerXAnchor, constant: 0).isActive = true
        sideTableViews.widthAnchor.constraint(equalTo: view.widthAnchor, constant: 0).isActive = true
        sideTableViews.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 0).isActive = true
    }

    @objc func membershipController(){
        let next = self.storyboard?.instantiateViewController(withIdentifier: "membershipViewController") as! membershipViewController
        self.present(next, animated: true, completion: nil)
    }

    @objc func bye(){
        print("bye")
        dismiss(animated: true, completion: nil)
    }

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


}

Answer 1

因为这个

 let side = sideViewController()

是除显示的实例之外的另一个实例，因此请将此var添加到视图中

class sideCollectionView:UIView {
  var currentVc:sideViewController?

}

//

在创建变量时将其分配

lazy var sideTableViews: sideCollectionView = {
   let content = sideCollectionView()
   content.currentVc = self
   return content
}()

//

内部

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    if indexPath.row == 0{
        connectController()
        print("connection")
        currentVc?.bye()
    }
}

使用collectionView单元关闭视图控制器

1 个答案: