How can i retrieve data in my child UICollectionView from my parent UICollectionViewCell - swift 4

Question

Suppose I have a ParentCollectionViewController which has the data called assetID.

This data is also available in the ParentCollectionViewControllerCell.

How can I pass this data in the ChildCollectionView which is located in each ParentCollectionViewControllerCell.

Here's the image

Thanks!

Answer 1

I found an easier alternative.

1. Declare a function setData() in the ChildCollectionView file.

   func setData(dataString: String){
      print(dataString, "data you wanted to pass")
   }
   

2. Take an outlet of the ChildCollectionView from the storyboard into the ParentCollectionViewCell

3. Call the setData(data) function in ParentCollectionViewCell using the outlet and pass the data into it. Like this:

   var dataString: String! {
     didSet {
       childCollectionViewOutlet.setData(dataString: dataString)
     }
   }
   

4. And voila! You will now have the data available in the desired ChildCollectionView. Hope this helps someone