how to clean UITableViewCell before reuse ? In cellForRow table view I set up viewModel and in didSet this View Model i change collectionView height constraint but when I scroll very fast then collection is totaly destroyed.
func setup(collectionView: UICollectionView) {
if self.collectionView != collectionView || self.collectionView == nil {
collectionView.register(UINib(nibName: "HomeRecommendationCollectionViewCell", bundle: nil),
forCellWithReuseIdentifier: HomeStoryboardConsts.Identifier.homeRecommendationCollectionViewCell.rawValue)
collectionView.contentInset = UIEdgeInsetsMake(0, 10, 0, 10)
if let layout = collectionView.collectionViewLayout as? UICollectionViewFlowLayout {
layout.minimumInteritemSpacing = 10
}
disposeBag = DisposeBag()
items.asObservable()
.subscribe(onNext: { [weak collectionView] _ in
collectionView?.reloadData()
})
.addDisposableTo(disposeBag)
self.collectionView = collectionView
}
}
collection View setup
viewModel Setup:
var viewModel: TitleAccessoryButtonCollectionViewModel? {
didSet {
guard let viewModel = viewModel else {
return
}
titleLabel.text = viewModel.title
if let buttonTitle = viewModel.accessoryButtonModel?.title {
setAccessoryButtonTitle(buttonTitle)
}else{
accessoryButton.hideTitleLabel()
}
if let buttonImage = viewModel.accessoryButtonModel?.image {
accessoryButton.buttonImageView.image = buttonImage
}
else {
accessoryButton.hideImageView()
}
sectionContentImage.image = viewModel.sectionContentImage
titleLabelLeadingConstraint.constant = viewModel.titleLabelLeadingSpacing
accessoryButton.isHidden = viewModel.hideAccessoryButton
sectionContentView.isHidden = viewModel.hidePremiumContentView
let collectionViewModel = viewModel.collectionViewModel
collectionViewHeight.constant = CGFloat(collectionViewModel.height)
collectionViewModel.setup(collectionView: collectionView)
collectionView.delegate = collectionViewModel.delegate
collectionView.dataSource = collectionViewModel.dataSource
collectionView.reloadData()
}
}
i have also in console 2018-09-19 14:27:52.335285+0200 App[76102:8433084] The behavior of the UICollectionViewFlowLayout is not defined because: 2018-09-19 14:27:52.335409+0200 App[76102:8433084] the item height must be less than the height of the UICollectionView minus the section insets top and bottom values, minus the content insets top and bottom values.
