ios - 通过在 Collection View 单元格内按下按钮来实例化 Storyboard

Question

我试图通过在 Collection View 单元格内按下按钮来实例化 Storyboard，但遇到错误:

class sampleCell: UICollectionViewCell {

    @IBAction func infoButtonPressed(_ sender: Any) {

        let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "InputViewController") as! InputViewController//error: Use of undeclared type "InputViewController"

        present(vc, animated: false)//error:Use of unresolved identifier 'present'
    }
}

知道如何做到这一点吗？

Answer 1

1-您没有名为InputViewController的类

let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "InputViewController") as! InputViewController 

2-您不能在单元格内呈现 vc，您需要一个委托(delegate)

present(vc, animated: false) 

<小时/>

仅用于主 Storyboard的注释，您可以替换

UIStoryboard(name: "Main", bundle: nil)

with(但也在 vc 内部)

self.storyboard

编辑: -------------------------------------- -------------------

细胞内部

class sampleCell: UICollectionViewCell {
  weak var delegate:CurrentController?
}

然后在cellForItemAt内

let cell = /////
cell.delegate = self

添加到vc

func goToInput() {

    let vc = self.storyboard!.instantiateViewController(withIdentifier: "InputViewController") as! InputViewController//error: Use of undeclared type "InputViewController" 
    present(vc, animated: false) 

}

在内部单元格操作之后

@IBAction func infoButtonPressed(_ sender: Any) {
  delegate?.goToInput()
}