以编程方式执行 segue [英] Perform a segue programmatically

问题描述

我正在尝试在没有 Storyboard 的情况下以编程方式执行 segue.目前我有这个作为我的代码:

Hi I'm trying to perform a segue programmatically without the Storyboard. Currently I have this as my code:

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "popOutNoteExpanded" {
        let vc = segue.destination as! ExpandedCellViewController
        let cell = sender as! AnnotatedPhotoCell
        sourceCell = cell
        vc.picture = cell.imageView.image
        print("button pressed")
    }
}

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    performSegue(withIdentifier: "popOutNoteExpanded", sender: indexPath)
}

当我点击集合视图单元格时，它说:

When I click on the collection view cell it's saying that:

没有标识符为popOutNoteExpanded"的转场.

has no segue with identifier 'popOutNoteExpanded'.

不确定如何执行我的自定义动画过渡.

Not sure how to perform my custom animated transition.

推荐答案

Segues 是故事板的组件.如果您没有故事板，则无法执行转场.但是你可以像这样使用当前视图控制器:

Segues are components of storyboard. If you don't have a storyboard, you can't perform segues. But you can use present view controller like this:

let vc = ViewController() //your view controller
self.present(vc, animated: true, completion: nil)

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