Firstly thank you for this library, exactly what i need is the library :) I tried all of Attributes Animators, they all working well but CubeAttributesAnimator not working.

Description

Hi,

I use this library and choose CubeAttributesAnimator in my iOS app, but screen display is strange. When I implement photo gallery with full screen, I can only see half photo. I think it seems to be caused by a bug of internal animation logics.

thanks :)

Environments

AnimatedCollectionViewLayout Version: 1.0.0 Xcode version: 11.1 Swift version: 5.1 Platform(s) running AnimatedCollectionViewLayout: iOS macOS version running Xcode: 10.15.1

ScreenShots

Strange Finished Pagination:

Expected Collect State Finished Pagination:

I'm using your current projects master branch. When I run the project the Parallax Collection view in portrait it looks great. The issue is when I turn it landscape the cells do not resize property( The experience should be the same as portrait - only one cell showing). Could you please fix this issue on a separate branch? Thank you!

Here is an image illustrating the issue:

Do i need to copy the Animator folder or did i do something wrong that the code can not recognized the animator? Even though i see in your commit message that you fixed the issue the pod didn't include the animator? Thank @KelvinJin

ScrollToItem function is working well in UICollectionViewFlowLayout but after implement this layout it does not work. Hint. When viewcontroller is loaded, in viewDidLayoutSubviews cycle, it is working.

If I set the width and spacing of the CollectionItem, then how do I calculate the position parameter in the Delegate I need to modify the original code logic if there is a better way to deal with this ?

Right not it seems like the Parallax effects the background of the cell and what's in front. I was wondering if there is a way to change this so the text on the cell is not effected by Parallax? Therefore the "Text/UILabel" does not move with the Parallax as you scroll?

I'm currently trying to set spacing between my collection view cells. The issue is every time I scroll horizontally the cell does not reset back to where is should be.

Please Look at image bellow!

Here is my code:

extension ImageCollectionViewController: UICollectionViewDelegateFlowLayout {
override func numberOfSections(in collectionView: UICollectionView) -> Int {
    return 1
}

override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return Int(Int16.max)
}

override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let c = collectionView.dequeueReusableCell(withReuseIdentifier: cellIdentifier, for: indexPath)

    if let cell = c as? SimpleCollectionViewCell {
        let i = indexPath.row % vcs.count
        let v = vcs[i]
        cell.bind(color: v.0, imageName: v.1)
        cell.clipsToBounds = animator?.1 ?? true
    }

    return c
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    guard let animator = animator else { return view.bounds.size }
    return CGSize(width: view.bounds.width / CGFloat(animator.2), height: view.bounds.height / CGFloat(animator.3))
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
    return .zero
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
    return 10
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
    return 0
}
}

Also here are images showing what happens:

Hi,

When I install the library with CocoaPods the Animators folder is missing.

I tried pod deintegrate, pod update and pod install many times but nothing works.

Thanks!

I like LinearCardAttributesAnimator() but I need to customize it. Is it possible to make it more linear, without zoom effect and place cells very close to each other?

Added import statement to top of the file, otherwise compilation will fail if inclusion is done by copying over sources. Other swift files are already so.

ParallaxAttributesAnimator has no effect why ？

lazy var baseCollectionView: UICollectionView = { let layout = AnimatedCollectionViewLayout() layout.animator = ParallaxAttributesAnimator() layout.itemSize = CGSize(width: UIScreen.main.bounds.width, height: 200) layout.minimumLineSpacing = 0 layout.minimumInteritemSpacing = 0 layout.scrollDirection = .horizontal let baseView = UICollectionView(frame: CGRect(x: 0, y: 90, width: UIScreen.main.bounds.width, height: 200), collectionViewLayout: layout) baseView.isPagingEnabled = true baseView.delegate = self baseView.dataSource = self baseView.collectionViewLayout = layout baseView.register(BannerCollectionViewCell.self, forCellWithReuseIdentifier: "BannerCollectionViewCell") return baseView }()

When sections are being used it breaks the logic

attributes.zIndex = attributes.indexPath.row -> PageAttributeAnimator.swift

Given a zIndex will determine depth when using indexPath values e.g [0,1], sections, row respectively. We run into issues when the section resets.

I don't know of a cleaner solution, but what I've been using at the moment is

var section = attributes.indexPath.section
var numItems = 0

while section >= 0 {
    numItems += collectionView.numberOfItems(inSection: section)
    section -= 1

attributes.zIndex = attributes.indexPath.row + numItems

Which seems to be doing the trick, my run into performance issues when using larger data sets. A more elegant solution will be to use visible cells and work out within the two cells an appropriate zIndex.

Happy for suggestions to make a PR

Hi.

The layout looks broken when using a cell programmatically. What am I missing? What could be different between the configuration of the cell in the Sample project in the storyboard and my own?

I narrowed the problem down to cell configuration because if I copy the Sample project's storyboard and viewControllers, I am about to successfully display and scroll the collectionview. As soon as I replace the Sample cell with my own, it fails.

I tore down the cell to the bare minimum

class MyCustomCell: UICollectionViewCell {
  // nothing    
}

and still, I get something like:

I'm on v 1.10, using SwiftPM, testing on iPhone SE Simulator iOS 13.5 And 14. I'm just trying to test out a full screen collectionview exactly like the sample project, only programmatic, and using my own cell.

Hi. I trying to add the possibility for scroll left/right by a button tap. It is possible? Please help someone.

In "#selector" i put code below, but it not work :

mainCollection.scrollToItem(at: IndexPath(item: item, section: 0), at: .centeredHorizontally, animated: true)

Thanks