uiscrollviewdelegate

UIScrollView has a delegate property which conforms to UIScrollViewDelegate protocol UIScrollViewDelegate : NSObjectProtocol { //... } class UIScrollView : UIView, NSCoding { unowned(unsafe) var delegate: UIScrollViewDelegate? //... } UICollectionView overrides this property with a different type UICollectionViewDelegate protocol UICollectionViewDelegate : UIScrollViewDelegate, NSObjectProtocol { //... } class UICollectionView : UIScrollView { unowned(unsafe) var delegate: UICollectionViewDelegate? //... } When I try to override UIScrollViews delegate with my protocol like so: protocol

I want to implement UICollectionView that scrolls horizontally and infinitely? If your data is static and you want a kind of circular behavior, you can do something like this: var dataSource = ["item 0", "item 1", "item 2"] func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { return Int.max // instead of returnin dataSource.count } func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell { let itemToShow = dataSource[indexPath.row % dataSource.count] let cell =

As the title suggest, I have a UIViewController with two UICollectionViews which are displaying the same content in a horizontal fashion. The main one shows one photo at a time, the thumbs one shows several. I have overridden the UIScrollViewDelegate method and added some code so that when the user scrolls the main CV, then the thumbs CV scrolls too. However I would like to enable the opposite as well (scroll the thumbs which will quickly move the main). However i'm getting a feedback effect. Here is my code snippet: #pragma mark - UIScrollViewDelegate - (void)scrollViewDidScroll:(UIScrollView

I have an onboarding section of my app with 4 pages the users scrolls through horizontally to get an idea of how to use the app (standard). I want the background color to transition as the user scrolls from page to page. I have the 4 RGB values I want to use: 241,170,170 170,201,241 188,170,241 241,199,170 I know I must use the scroll view delegate + content offset to change the uicolor values, but im not sure how I get it to go to the specific colors ive selected. Any help would be greatly appreciated. Any implementation would do, swift or objective-c thanks For anyone interested. This is the

I am displaying fairly large images in a UITableView . As the user scrolls, I'd like to the table view to always snap the center-most photo in the middle. That is, when the table is in a resting state, it will always have a UITableViewCell snapped to the center. How does one do this? You can use the UIScrollViewDelegate methods on UITableView to do this: - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate { // if decelerating, let scrollViewDidEndDecelerating: handle it if (decelerate == NO) { [self centerTable]; } } - (void)scrollViewDidEndDecelerating:

I have implemented the UIScrollViewDelegate protocol in my .h file and i have implemented the - (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView method in my .m class. when the scrolling is done in my table view other delegate method of scrollview are getting called, but when scrolling ends, -scrollViewDidEndScrollingAnimation: is not getting called. I am bit stuck in this. Thanks and regards Bogatyr -scrollViewDidEndScrollingAnimation: is called when a programmatic-generated scroll finishes. -scrollViewDidEndDecelerating: is called when a user-swipe scroll finishes. I had