Scroll UICollectionView automatically in Swift 3

Scroll UICollectionView

When you show banners in UICollectionView and you want to scroll it automatically and You can also scroll UICollectionView automatically in a vertical position. First, you have to create Timer through which you can scroll UICollectionView according to your need.You can also set time period after which theUICollectionView cell scrolls

 Timer.scheduledTimer(timeInterval: 4.0, target: self, selector: #selector(self.scrollAutomatically), userInfo: nil, repeats: true)

 func scrollAutomatically(_ timer: Timer) {

}

Timer.scheduledTimer(timeInterval: 4.0, target: self, selector: #selector(self.scrollAutomatically), userInfo: nil, repeats: true)

func scrollAutomatically(_ timer: Timer) {

}

Do your stuff in scrollAutomatically function

 func scrollAutomatically(_ timer1: Timer) {
        
        if let coll  = bannerCollection {
            for cell in coll.visibleCells {
                let indexPath: IndexPath? = coll.indexPath(for: cell)
                if ((indexPath?.row)!  < banner.count - 1){
                    let indexPath1: IndexPath?
                    indexPath1 = IndexPath.init(row: (indexPath?.row)! + 1, section: (indexPath?.section)!)
                    
                    coll.scrollToItem(at: indexPath1!, at: .right, animated: true)
                }
                else{
                    let indexPath1: IndexPath?
                    indexPath1 = IndexPath.init(row: 0, section: (indexPath?.section)!)
                    coll.scrollToItem(at: indexPath1!, at: .left, animated: true)
                }
                
            }
        }
        
    }

func scrollAutomatically(_ timer1: Timer) {

if let coll = bannerCollection {

for cell in coll.visibleCells {

let indexPath: IndexPath? = coll.indexPath(for: cell)

if ((indexPath?.row)! < banner.count - 1){

let indexPath1: IndexPath?

indexPath1 = IndexPath.init(row: (indexPath?.row)! + 1, section: (indexPath?.section)!)

coll.scrollToItem(at: indexPath1!, at: .right, animated: true)

}

else{

let indexPath1: IndexPath?

indexPath1 = IndexPath.init(row: 0, section: (indexPath?.section)!)

coll.scrollToItem(at: indexPath1!, at: .left, animated: true)

}

bannerCollection :- your collection view

banner.Count:- a number of cells containing a collection view

bhavuk chawla 30 September 2017

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1 comments

GV Nov 16, 2018 at 9:52 pm

Straight to the point. Easy auto-scroll for collectionView 😀

From iOS Engr in the PH. Thank you!

Scroll UICollectionView automatically in Swift 3

Scroll UICollectionView

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