uicollectionviewcell

I am facing problem when I download gif images and add in to collection view. gif images are download well, but when i try to scroll very very quickly it's crash Please help. I have two solutions /* cellForGif.layer.borderColor = [[UIColor colorWithRed:54.0/255.f green:56.0/255.f blue:67.0/255.f alpha:1.0]CGColor]; cellForGif.layer.borderWidth = 0.7; FLAnimatedImage __block *gifImage = nil; dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ gifImage = [[FLAnimatedImage alloc] initWithAnimatedGIFData:[NSData dataWithContentsOfFile:[[NSBundle mainBundle]

Just getting started with UICollectionView . I've used IB to create a simple UICollectionView in a UIViewController . It scrolls horizontally with paging. I placed a simple UICollectionViewCell inside the UICollectionView . I set the reuse identifier for the cell. I placed a UILabel with a tag of 100 inside the UICollectionViewCell . In viewDidLoad , I call: [_collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"Thing"]; Later I attempt to initialize the cell like so: - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView

I have UICollection in which there will be number of Students items and each item having switch inside it used for recording attendance. I am loop through all visible cells like this. for(attendancecollectionViewCell* cells in [[self collectionView] visibleCells]){ NSLog(@"The switch value : %c",cells.attendanceSwitchLabel.isOn); } But, I wanted to loop through all the cells for attendance, not just the visible cells. You cannot loop through non-visible cells because those cells don't exist. UICollectionView, like UITableView, reuses cells as soon as they are offscreen. I.e., if you scroll

I use feature of autosizing flow layout of collectionView self.flow = [[UICollectionViewFlowLayout alloc] init]; self.flow.scrollDirection = UICollectionViewScrollDirectionVertical; self.flow.sectionInset = UIEdgeInsetsZero; self.flow.estimatedItemSize = CGSizeMake(320, 48); I want to cells will fill by width full width of CollectionView (widthCell=widthCollectionView) But i got what autosizing work for whole size. I try playing with Content Compression/Hugging Priority - not effect. With width of CollectionView equals 320px, i got cell size for label content size. My cell looks like

I want to show a UICollectionView which contains exactly 2 rows and 100 cells in each row. // 1 - (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection:(NSInteger)section { return 100; } // 2 - (NSInteger)numberOfSectionsInCollectionView: (UICollectionView *)collectionView { return 2; } // 3 - (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath { MyCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"cell" forIndexPath:indexPath]; cell.lbl.text = @"Data"; return cell; } I am getting this: How can I specify a row

I am using Horizontal Auto Scroll using timer. I want it to scroll one by one. In my case it is scrolling continuos from left to right. and in last it also scroll white space after last cell. @interface AccountsVC ()<UICollectionViewDataSource, UICollectionViewDelegate,UICollectionViewDelegateFlowLayout> { CGFloat width_Cell; NSTimer *autoScrollTimer; } - (void)viewDidLoad { [super viewDidLoad]; width_Cell = 0.0; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; [self configAutoscrollTimer]; } - (void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated];