CODEWITHSUNDEEP
iosswiftuicollectionview
Yurii Petrov
Yurii Petrov

Reputation: 341

UICollectionView. How Present viewController with a different element (not only first) without animation?

I need present UICollectionView, with a different element (not only first) without animation.

example

my code:

override func viewWillAppear(_ animated: Bool) {
   super.viewWillAppear(animated) 

   DispatchQueue.main.async { 
       var newPoint = self.productCollectionView.contentOffset 
       newPoint.x = (UIScreen.main.bounds.width * CGFloat(self.currentPage)) + 1 
       self.productCollectionView.contentOffset = newPoint 
  } 

}

Upvotes: 0

Views: 60

Answers (1)

matt
matt

Reputation: 535801

Instead of setting contentOffset, call the setContentOffset(_:, animated:) method with an animated: value of false.

Also I would suggest removing the async and moving your code to viewDidLayoutSubviews. That way, your code will run before the user sees anything, but after the initial layout of the view has been achieved. This method can be called many times, so you will have to use a Bool instance property to make sure it only runs once.

Upvotes: 1

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