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2014/10/15 ¤U¤È 10:15:16
iphone Programming Glossary: uicollectionviewflowlayoutLarge cells in a UICollectionView getting removed while the cell is still displayed http://stackoverflow.com/questions/13016302/large-cells-in-a-uicollectionview-getting-removed-while-the-cell-is-still-displa share improve this question This issue happened for me along with this warning in the debug log the behavior of the UICollectionViewFlowLayout is not defined because the item height must be less that the height of the UICollectionView minus the section insets top..
how do you determine spacing between cells in UICollectionView flowLayout http://stackoverflow.com/questions/13017257/how-do-you-determine-spacing-between-cells-in-uicollectionview-flowlayout in width which could result in a layout like the following. The last line always left aligns due to the behavior of UICollectionViewFlowLayout the issue lies in items that are by themselves in any line but the last one. With @matt's code I was seeing. In that example.. currentItemAttributes super layoutAttributesForItemAtIndexPath indexPath UIEdgeInsets sectionInset UICollectionViewFlowLayout self.collectionView.collectionViewLayout sectionInset if indexPath.item 0 first item of section CGRect frame currentItemAttributes.frame..
http://stackoverflow.com/questions/13492037/targetcontentoffsetforproposedcontentoffsetwithscrollingvelocity-without-subcla withScrollingVelocity without subclassing UICollectionViewFlowLayout I've got a very simple collectionView in my app just a single row of square thumbnail images . I'd like to intercept the.. CGPoint targetContentOffsetForProposedContentOffset withScrollingVelocity to do this but I'm just using a standard UICollectionViewFlowLayout . I'm not subclassing it. Is there any way of intercepting this without subclassing UICollectionViewFlowLayout Thanks iphone.. UICollectionViewFlowLayout . I'm not subclassing it. Is there any way of intercepting this without subclassing UICollectionViewFlowLayout Thanks iphone ios uicollectionview share improve this question OK answer is no there is no way to do this without subclassing..
http://stackoverflow.com/questions/13511733/how-to-make-supplementary-view-float-in-uicollectionview-as-section-headers-do-i set a Custom Layout. Remember to add UICollectionViewDelegateFlowLayout to your .h file too Create a new Subclass of UICollectionViewFlowLayout call it whatever you want and make sure the H file has #import UIKit UIKit.h @interface YourSubclassNameHere UICollectionViewFlowLayout.. call it whatever you want and make sure the H file has #import UIKit UIKit.h @interface YourSubclassNameHere UICollectionViewFlowLayout @end Inside the Implementation File make sure it has the following NSArray layoutAttributesForElementsInRect CGRect rect..
Dynamically setting layout on UICollectionView causes inexplicable contentOffset change http://stackoverflow.com/questions/13780138/dynamically-setting-layout-on-uicollectionview-causes-inexplicable-contentoffset registerClass UICollectionViewCell class forCellWithReuseIdentifier @ CELL self.collectionView.collectionViewLayout UICollectionViewFlowLayout alloc init NSInteger collectionView UICollectionView collectionView numberOfItemsInSection NSInteger section return 1 UICollectionViewCell.. f self.collectionView.contentOffset.x self.collectionView.contentOffset.y self.collectionView setCollectionViewLayout UICollectionViewFlowLayout alloc init animated YES NSLog @ contentOffset f f self.collectionView.contentOffset.x self.collectionView.contentOffset.y.. f f self.collectionView.contentOffset.x self.collectionView.contentOffset.y @end The controller sets a default UICollectionViewFlowLayout in viewDidLoad and displays a single cell on screen. When the cells is selected the controller creates another default UICollectionViewController..
Large UICollectionViewCell stopped being displayed when scrolling http://stackoverflow.com/questions/14254222/large-uicollectionviewcell-stopped-being-displayed-when-scrolling or in edit of the question mentioned above. What happens When large cells being displayed in a UICollectionView with a UICollectionViewFlowLayout after scrolling the collection view to a certain offset the cells will disappear. When scrolling further until another cell..
Console error: UICollectionView must be initialized with a non-nil layout parameter http://stackoverflow.com/questions/15270058/console-error-uicollectionview-must-be-initialized-with-a-non-nil-layout-parame @ Thirth @ Fourth self.collectionView registerClass UICollectionViewCell class forCellWithReuseIdentifier @ myCell UICollectionViewFlowLayout flow UICollectionViewFlowLayout alloc init flow setItemSize CGSizeMake 60 60 flow setScrollDirection UICollectionViewScrollDirectionVertical.. registerClass UICollectionViewCell class forCellWithReuseIdentifier @ myCell UICollectionViewFlowLayout flow UICollectionViewFlowLayout alloc init flow setItemSize CGSizeMake 60 60 flow setScrollDirection UICollectionViewScrollDirectionVertical self.collectionView..
Can't get scrollsToTop working on iOS7 http://stackoverflow.com/questions/19059024/cant-get-scrollstotop-working-on-ios7 W H gestureRecognizers NSArray 0x10966080 layer CALayer 0x109623a0 contentOffset 0 64 collection view layout UICollectionViewFlowLayout 0x10940a70 UIImageView 0x10965fa0 frame 0 564.5 320 3.5 alpha 0 opaque NO autoresize TM userInteractionEnabled NO layer..
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