I use a main class call newsFeedCointroller
as UICollectionViewController
. 1. In cell inside I have a newsfeed with a like button (to populate the cell I use a class called "FeedCell") 2. Out from cells (in mainview) I have a label (labelX) used for "splash message" with a function called "messageAnimated"
How can I call the "messageAnimated" function from the button inside the cells.
I want to to change the label text to for example: "you just liked it"...
Thanks for helping me
In your FeedCell you should declare a delegate (Read about delegate pattern here )
protocol FeedCellDelegate {
func didClickButtonLikeInFeedCell(cell: FeedCell)
}
In your cell implementation (suppose that you add target manually)
var delegate: FeedCellDelegate?
override func awakeFromNib() {
self.likeButton.addTarget(self, action: #selector(FeedCell.onClickButtonLike(_:)), forControlEvents: .TouchUpInside)
}
func onClickButtonLike(sender: UIButton) {
self.delegate?.didClickButtonLikeInFeedCell(self)
}
In your View controller
extension FeedViewController: UICollectionViewDataSource, UICollectionViewDelegate {
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("feedCell", forIndexPath: indexPath) as! FeedCell
// Do your setup.
// ...
// Then here, set the delegate
cell.delegate = self
return cell
}
// I don't care about other delegate functions, it's up to you.
}
extension FeedViewController: FeedCellDelegate {
func didClickButtonLikeInFeedCell(cell: FeedCell) {
// Do whatever you want to do when click the like button.
let indexPath = collectionView.indexPathForCell(cell)
print("Button like clicked from cell with indexPath \(indexPath)")
messageAnimated()
}
}
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