pre select/highlight UICollectionViewCell on first load of view

Question

Im trying to preselect the first object/UICollectionViewCell in the UICollectionView? I have tried:

self.dateCollectionView.allowsMultipleSelection=NO;

[self.da         


        

Answer 1

For Swift 3:

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    //auto selected 1st item
    let indexPathForFirstRow = IndexPath(row: 0, section: 0)
    self.collectionView?.selectItem(at: indexPathForFirstRow, animated: true, scrollPosition: .top)
}