2014/10/15 下午 10:13:40

iphone Programming Glossary: scrollviewdidscroll

http://stackoverflow.com/questions/10404116/uitableview-infinite-scrolling

when you hit the bottom of the UITableView become it's delegate because it is a subclass of UIScrollView and use the scrollViewDidScroll delegate method to compare the table's content height and it's actual scroll position. EDIT something like this void scrollViewDidScroll.. delegate method to compare the table's content height and it's actual scroll position. EDIT something like this void scrollViewDidScroll UIScrollView scrollView_ CGFloat actualPosition scrollView_.contentOffset.y CGFloat contentHeight scrollView_.contentSize.height..

Detecting UITableView scrolling

http://stackoverflow.com/questions/1587855/detecting-uitableview-scrolling

UICollectionView: paging like Safari tabs or App Store search

http://stackoverflow.com/questions/15919457/uicollectionview-paging-like-safari-tabs-or-app-store-search

_secretScrollView.panGestureRecognizer _collectionView.panGestureRecognizer.enabled NO Delegate void scrollViewDidScroll UIScrollView scrollView CGPoint contentOffset scrollView.contentOffset contentOffset.x contentOffset.x _collectionView.contentInset.left..

Finding the direction of scrolling in a UIScrollView?

http://stackoverflow.com/questions/2543670/finding-the-direction-of-scrolling-in-a-uiscrollview

no direction at all and then briefly be going leftward. To determine the direction you'll need to use the UIScrollView scrollViewDidScroll delegate. In this sample I created a variable named lastContentOffset which I use to compare the current content offset.. the scrollView is scrolling left somewhere in the header @property nonatomic assign NSInteger lastContentOffset void scrollViewDidScroll UIScrollView sender ScrollDirection scrollDirection if self.lastContentOffset scrollView.contentOffset.x scrollDirection..

UIScrollView Infinite Scrolling

http://stackoverflow.com/questions/3430267/uiscrollview-infinite-scrolling

I'm attempting to setup a scrollview with infinite horizontal scrolling. Scrolling forward is easy I have implemented scrollViewDidScroll and when the contentOffset gets near the end I make the scrollview contentsize bigger and add more data into the space i'll.. perfectly if I scroll slowly or enable paging but if I go fast not even very fast it goes mad Heres the code void scrollViewDidScroll UIScrollView scrollView float pageNumber scrollView.contentOffset.x 320 float pageCount scrollView.contentSize.width 320..

iPhone UIScrollView Speed Check

http://stackoverflow.com/questions/3719753/iphone-uiscrollview-speed-check

CGPoint lastOffset NSTimeInterval lastOffsetCapture BOOL isScrollingFast Then have this code for your scrollViewDidScroll void scrollViewDidScroll UIScrollView scrollView CGPoint currentOffset self.currentChannelTableView.contentOffset NSTimeInterval.. lastOffset NSTimeInterval lastOffsetCapture BOOL isScrollingFast Then have this code for your scrollViewDidScroll void scrollViewDidScroll UIScrollView scrollView CGPoint currentOffset self.currentChannelTableView.contentOffset NSTimeInterval currentTime NSDate..

How to know when UITableView did scroll to bottom in iPhone

http://stackoverflow.com/questions/5137943/how-to-know-when-uitableview-did-scroll-to-bottom-in-iphone

The best way is to test a point at the bottom of the screen and use this method call when ever the user scrolls scrollViewDidScroll NSIndexPath indexPathForRowAtPoint CGPoint point Test a point near the bottom of the screen and then using the indexPath..

How to lock the horizontal scrolling of a scrollView in iOS

http://stackoverflow.com/questions/5271521/how-to-lock-the-horizontal-scrolling-of-a-scrollview-in-ios

in both dimensions you can disable the horizontal scrolling implementing the UIScrollView protocol method void scrollViewDidScroll UIScrollView aScrollView just add this in your UIViewController float oldX here or better in .h interface void scrollViewDidScroll.. UIScrollView aScrollView just add this in your UIViewController float oldX here or better in .h interface void scrollViewDidScroll UIScrollView aScrollView aScrollView setContentOffset CGPointMake oldX aScrollView.contentOffset.y or if you are sure you..

UITextView ruled line background but wrong line height

http://stackoverflow.com/questions/5375350/uitextview-ruled-line-background-but-wrong-line-height

is the ... line. nThis is the ... line. nThis is the ... line. nThis is the ... line. nThis is the ... line. n void scrollViewDidScroll UIScrollView scrollView note setNeedsDisplay void textViewDidBeginEditing UITextView textView CGRect frame self.view.bounds..

Change Default Scrolling Behavior of UITableView Section Header

http://stackoverflow.com/questions/664781/change-default-scrolling-behavior-of-uitableview-section-header

according to the contentInset in the UITableViewControllerDelegate extends UIScrollViewDelegate like this void scrollViewDidScroll UIScrollView scrollView CGFloat sectionHeaderHeight 40 if scrollView.contentOffset.y sectionHeaderHeight scrollView.contentOffset.y..

UIScrollView : paging horizontally, scrolling vertically?

http://stackoverflow.com/questions/728014/uiscrollview-paging-horizontally-scrolling-vertically

right you can try to get along with just one UIScrollView switching its pagingEnabled property on the fly from your scrollViewDidScroll delegate method. To prevent diagonal scrolling you should first try remembering contentOffset in scrollViewWillBeginDragging.. first try remembering contentOffset in scrollViewWillBeginDragging and checking and resetting contentOffset inside scrollViewDidScroll if you detect a diagonal movement. Another strategy to try is to reset contentSize to only enable scrolling in one direction..

Photos app-like gap between pages in UIScrollView with pagingEnabled

http://stackoverflow.com/questions/849383/photos-app-like-gap-between-pages-in-uiscrollview-with-pagingenabled

while scrolling so I cannot simply inset the page content. My plan is to try moving the page content from inside scrollViewDidScroll callback so that assuming you're scrolling to the right initially the target page is slightly offset to the right of its..

How to detect when a UIScrollView has finished scrolling

http://stackoverflow.com/questions/993280/how-to-detect-when-a-uiscrollview-has-finished-scrolling

to detect when a UIScrollView has finished scrolling UIScrollViewDelegate has got two delegate methods scrollViewDidScroll and scrollViewDidEndScrollingAnimation but neither of these tell you when scrolling has completed. scrollViewDidScroll only.. scrollViewDidScroll and scrollViewDidEndScrollingAnimation but neither of these tell you when scrolling has completed. scrollViewDidScroll only notifies you that the scroll view did scroll not that it has finished scrolling. The other method scrollViewDidEndScrollingAnimation..