Collectionview Moving slider in row does not select the row

Modify the refreshFields function like this:

@objc func refreshFields(_ notification: Notification) {
    let myCell = notification.object as! MyCVCellClass
    // you now have access to any properties/outlets you have defined in your MyCVCellClass
    // for example myCell.theSlider or whatever you called the outlet for the slider
    // you can also do something like:
    let cellPath = myCollectionView.indexPath(for: myCell)
}

Modify the addObserver statement like this (not 100% sure if I have the Swift syntax right, but it should be close):

NotificationCenter.default.addObserver(self, selector: #selector(refreshFields(_:)), name: .kRefresh, object: nil)

Sorry, I don't think I worded that clearly... In the "slider position changed" method, I don't know how to get that reference.

Also, when I do get the reference does it go here: "object: nil", replacing the "nil"

Could you post the slider position changed method you have written, that will be easier to help.

yes, the reference will replace the nil.

I know this is already a long thread and I haven't read all of it so appollogies if this is already said or not relevant (I'm pretty new to Swift etc.).

I have a collection view of images, to get the image tapped I added a gesture recogniser to the image view. Note I'm only doing this to add a border to selected items. In your case you may have to specify a custom cell class to get to the slider.

Something like:

// In viewDidLoad

let imagesCVGR = UITapGestureRecognizer(target: self, action: #selector(myTappedFunc))

imagesCVGR.delegate = self

imagesCVGR.cancelsTouchesInView = false

imagesCollectionView.addGestureRecognizer(imagesCVGR)

@objc func myTappedFunc(sender: UITapGestureRecognizer){

var myRow = 0

var indexPath: IndexPath = IndexPath()

var loc: CGPoint

// Get the point tapped and then the index path for the cell at that point.

loc = sender.location(in: imagesCollectionView)

if let iP = imagesCollectionView.indexPathForItem(at: loc) {

indexPath = iP

myRow = iP.row

}

// Get the cell that was tapped from the indexPath. You should now be able

// to get to the slider etc from within the cell.

let cell = imagesCollectionView.cellForItem(at: indexPath as IndexPath)

// Etc.

}

That's where the confusion is... the slider position changed method is in the ViewController. Now that I think about it, it makes more sense to pass have ieach collectionview item have a CLightBulb object since each one represents a light bulb and all the functionality should be contained in the item class. Thanks for all your time and help... you to Cluade31!