CODEWITHSUNDEEP
iosswiftuitableviewuicollectionviewpresentviewcontroller
iOS Developer
iOS Developer

Reputation: 85

Presenting a ViewController from within a CollectionViewCell that is nested in a TableViewCell

How can I present a ViewController from within a CollectionViewCell that is nested in a TableViewCell and that TableViewCell is inside a ViewController?

I have tried presentViewController and performSegue but they can't be called from within a cell.

Detailed explanation:

I have three files.

  1. ProfileViewController
  2. PeopleCategoryTableViewCell
  3. PeopleCategoryCollectionViewCell

When someone taps on a story in CollectionViewCell then I want them to redirect to another ViewController i.e. SinglePostVC()

What I have tried:

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    print("inside this")
    self.window?.rootViewController?.present(SinglePostVC(), animated: true, completion: nil)
    print("outside this")
}

Upvotes: 0

Views: 1883

Answers (2)

Daniel Kuta
Daniel Kuta

Reputation: 1634

You can emit notification from PeopleCategoryCollectionViewCell and listen on it in ProfileViewController, then you can normally present view controller.

Tutorial for local notifications: https://useyourloaf.com/blog/local-notifications-with-ios-10/

Example:

NSNotificationCenter
        .defaultCenter()
        .postNotificationName(kCellTappedKey, object: nil, userInfo: nil)

And listen:

notificationCenter.addObserver(self,
                                   selector: #selector(self.onCellTapped(_:)),
                                   name: kDocumentCellTappedKey,
                                   object: nil)

And add this function:

func onCellTapped(notification: NSNotification) { //call perform segue }

Upvotes: 0

dahiya_boy
dahiya_boy

Reputation: 9503

Use protocol and delegate like this

In tableViewCell

protocol CellDelegate {
    func colCategorySelected(_ indexPath : IndexPath)
}

var delegate : CellDelegate?

In didSelect

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {

    delegate?.colCategorySelected(indexPath)
}

In your ProfileViewController

class HomeVC: UIViewController , UITableViewDelegate, UITableViewDataSource, CellDelegate{
:
:

func colCategorySelected(_ indexPath : IndexPath){
    // Push here
  }
:
:
}

And dont forget

cellForRow

   let Cell = tableView.dequeueReusableCell(withIdentifier: "Cell") as! tableCell

     Cell.delegate = self // dont forget this line.
     return Cell

Upvotes: 2

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