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 me, putting it in viewDidAppear: cause a second to select, so the user will see both states (i.e. not selected, and selected). To avoid this, I put it in viewWillAppear: instead and worked like a charm

override func viewWillAppear(_ animated: Bool) {
    let selectedIndexPath = IndexPath(item: 0, section: 0)
    collectionView.selectItem(at: selectedIndexPath, animated: false, scrollPosition: .left)
}