質問編集履歴
1
より詳しく修正
test
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File without changes
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test
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@@ -2,15 +2,163 @@
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原因がわからない状態です。
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```
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// MARK: - UIScrollViewDelegate
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extension TabView: UICollectionViewDelegate {
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-
func scrollViewDidEndScrollingAnimation(_ scrollView:UIScrollView){
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func scrollViewDidScroll(scrollView: UIScrollView) {
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-
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if scrollView.dragging {
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currentBarView.hidden = true
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let indexPath = NSIndexPath(forItem: currentIndex, inSection: 0)
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if let cell = collectionView.cellForItemAtIndexPath(indexPath) as? TabCollectionCell {
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cell.showCurrentBarView()
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}
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}
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guard isInfinity else {
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return
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}
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if pageTabItemsWidth == 0.0 {
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pageTabItemsWidth = floor(scrollView.contentSize.width / 3.0)
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}
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if (scrollView.contentOffset.x <= 0.0) || (scrollView.contentOffset.x > pageTabItemsWidth * 2.0) {
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scrollView.contentOffset.x = pageTabItemsWidth
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}
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}
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func scrollViewDidEndScrollingAnimation(scrollView: UIScrollView) {
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// Accept the touch event because animation is complete
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updateCollectionViewUserInteractionEnabled(true)
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guard isInfinity else {
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return
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}
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let indexPath = NSIndexPath(forItem: currentIndex, inSection: 0)
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if shouldScrollToItem {
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// After the moved so as not to sense of incongruity, to adjust the contentOffset at the currentIndex
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collectionView.scrollToItemAtIndexPath(indexPath, atScrollPosition: .CenteredHorizontally, animated: false)
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shouldScrollToItem = false
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}
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}
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}
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```
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```
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func moveCurrentBarView(indexPath: NSIndexPath, animated: Bool, shouldScroll: Bool) {
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if shouldScroll {
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collectionView.scrollToItemAtIndexPath(indexPath, atScrollPosition: .CenteredHorizontally, animated: animated)
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layoutIfNeeded()
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collectionViewContentOffsetX = 0.0
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currentBarViewWidth = 0.0
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}
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if let cell = collectionView.cellForItemAtIndexPath(indexPath) as? TabCollectionCell {
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currentBarView.hidden = false
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if animated && shouldScroll {
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cell.isCurrent = true
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}
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cell.hideCurrentBarView()
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currentBarViewWidthConstraint.constant = cell.frame.width
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if !isInfinity {
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currentBarViewLeftConstraint?.constant = cell.frame.origin.x
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}
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UIView.animateWithDuration(0.2, animations: {
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self.layoutIfNeeded()
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}, completion: { _ in
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if !animated && shouldScroll {
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cell.isCurrent = true
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}
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if !self.isInfinity {
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self.updateCollectionViewUserInteractionEnabled(true)
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}
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})
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}
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beforeIndex = currentIndex
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}
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162
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163
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```
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164
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