how to reload a collectionview that is inside a tableviewcell

Question

I have a collectionView inside a tableViewCell

for example: credit: How to use StoryBoard quick bui

Answer 1

1st on tableview cell create this function:

func collectionReloadData(){
        DispatchQueue.main.async(execute: {
            self.collectionView.reloadData()
        })
    }

then call it from

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { ...

    cell.collectionReloadData()

Answer 2

Simplest Way

for cell in tableView.visibleCells {
    (cell as? YourTableViewCell)?.collectionView.reloadData()
}

Or If you need to reload Specific UICollectionView

if let cell = tableView.cellForRow(at: IndexPath(row: 0, section: 0)) as? YourTableViewCell {
   cell.collectionView.reloadData()
}

Answer 3

create tags for collection view with indexPath.row of UITableView and create an instance of the UICollectionView using the tag and reload !

Answer 4

I found out how! In my tableViewCell class I just need to link the collectionView as an outlet so in my tableViewCell's cellForRowAtIndexPath I just needed to call cell.collectionView.reloadData()