problem about uicollectionviewcell-Collection of common programming errors


  • Zaakk
    objective-c ios uiwebview uicollectionview uicollectionviewcell
    Please help me, how can I save state of UICollectionViewCell. For example: I have cells with UIWebView and when I dequeueReusableCellWithReuseIdentifier:forIndexPath: returned wrong cell, not for this indexPath and after it UIWebView content will reloaded for correct indexPath with twitches. Thanks!- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {NewsCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuse

  • RynoB
    objective-c ios uicollectionview uicollectionviewcell
    I’m currently facing a strange issue with UICollectionViewCell when adding subviews to it but only during certain situations.Here is the scenario:I have a “container” view which conforms to a very specific protocol (ADGControl) with a nested view, typically a UIKit control subclass I.e MyCustomTextField : UITextField for custom controls.The “container” view exposes a property called “innerControlView” which holds a strong reference to the custom control which is what I’m trying to add as a sub v

  • André Dion
    iphone ios objective-c uicollectionview uicollectionviewcell
    I am using MVC pattern in that there is one view controller in which i have UICollectionview, which is loaded with UICollectionViewCell.xib.For example I have ‘A’ as View Controller which get data from Singleton class ‘B’ which in turns calls the respective class at runtime eg:- ‘C’ and ‘D’ class which returns UICollectionViewCell object to ‘A’ view controller. Is this possible and I want that cell to be loaded one by one in UICollectionView?

  • Hironobu Sano
    ios uicollectionview uicollectionviewcell fragmentpageradapter container-view
    I created containerview. I want to paging in the horizontal mode of UICollectionView it.(Like a FragmentPager of Android) However, error occurs if you put in the ContainerView UICollectionViewCell. (Storyboard: error: Illegal Configuration: Container Views cannot be placed in elements that are repeated at runtime) What do I do now?

  • Glauco
    ios uicollectionview uicollectionviewcell
    I have a custom UICollectionViewCell whose content is also a collection and I would like to use UICollectionView to display its content. Is this possible? How would I accomplish this? I made the custom UICollectionViewCell also inheriting from UICollectionViewDataSource and define a UICollectionView internal property but things are not working as expected. Any idea?

  • rmaddy
    ios objective-c uicollectionview uicollectionviewcell
    I followed this tutorial to create a UICollectionView. I copied their code with no problem, however when I tried it, it crashes- (void)viewDidLoad {[super viewDidLoad];gridImages = [[NSMutableArray alloc]init];[gridImages addObject: @”test.jpg”];[gridImages addObject: @”test.jpg”];[gridImages addObject: @”test.jpg”];[gridImages addObject: @”test.jpg”];[gridImages addObject: @”test.jpg”];}- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{retu

  • melps
    ios uicollectionview uicollectionviewcell
    I have a simple UICollectionView based app – one UICollectionView and a NSMutableArray based data model for simplicity.I can delete cells with no problem via the didSelectItemAtIndexPath: delegate method:-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{[self.data removeObjectAtIndex:[indexPath row]];[self.collectionView deleteItemsAtIndexPaths:@[indexPath]]; }However, I’m trying to add a delete option via a UIMenuController in a UICollect

  • Rameez Hussain
    objective-c ios7 uicollectionview uigesturerecognizer uicollectionviewcell
    I have a UICollectionView on iOS7 which crashes randomly when intense scrolling. I enabled zombies and found that it gives me an error saying:*** -[NSIndexPath section]: message sent to deallocated instance 0x17dbc970I believe this is due to an Apple error described here. Apparently, the app crashes when someone highlights a cell while scrolling fast, and then the OS tries to unhighlight it when it moves off screen, when it ceases to exist. The proposed solution is to disable the userInteraction

  • Nick
    objective-c performance uicollectionview rubymotion uicollectionviewcell
    I have a UICollectionView in my app, and each cell is a UIImageView and some text labels. The problem is that when I have the UIImageViews displaying their images, the scrolling performance is terrible. It’s nowhere near as smooth as the scrolling experience of a UITableView or even the same UICollectionView without the UIImageView.I found this question from a few months ago, and it seems like an answer was found, but it’s written in RubyMotion, and I don’t understand that. I tried to see how to

  • Avner Barr
    ios objective-c uicollectionview uicollectionviewcell xcode-instruments
    I have a gallery in my app utilizing a UICollectionView. The cells are approximately 70,70 size. I am using ALAssets from the ALAssetLibrary in the gallery which I have stored in a list. I am using the usual pattern for populating the cells:-(UICollectionViewCell*)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {mycell = [collectionView dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath];mycell.imageView.image = [[UIImag

  • rmaddy
    ios uicollectionview uicollectionviewcell
    App crash and give following error message Terminating app due to uncaught exception’NSInternalInconsistencyException’, reason: ‘-[UICollectionViewController loadView]loaded the “RecipeCollectionViewController” nib but didn’t get a UICollectionView.

  • not really Jake
    ios constraints uicollectionview uicollectionviewcell sdwebimage
    I have a UICollectionView with a lot of cells that contain a UIImageView. I use SDWebImage to load images into them.When I scroll really fast, the application crashes. LLDB doesn’t do me any good, and the device gives me the following crashlog: myapp crashlog (.txt)All I can draw from this is that an enumeration crash occurs when updating constraints. This, however, isn’t directly triggered by me. Can anybody give me a hint on how to proceed from here? I can’t get much sensible information out o

  • verma
    iphone ios uicollectionview uicollectionviewcell uicollectionviewlayout
    I have a collections view and the view works fine when I load the data initially, but crashes when I try to reload it. take a look at the reload thats happening on the method – scrollViewDidEndDeceleratingand the error is -[FeedCollectionViewCell release]: message sent to deallocated instance 0x800d6f70here is the code. This the Controller@interface MyViewController : UIViewController <UICollectionViewDataSource,UICollectionViewDelegate,UICollectionViewDelegateFlowLayout, UIScrollViewDelega

  • MaVRoSCy
    nsindexpath uicollectionview uicollectionviewcell
    Hello I am having trouble getting a custom object at the index path of the UICollectionView… Below is my code.I am getting the crash [Player firstName:]: unrecognized selector sent to instanceAny suggestions?- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { BenchCollectionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:CollectionCell forIndexPath:indexPath]; [cell setFrame:CGRectMake(0, 4, 120,

  • Krunal
    ios iphone ipad uicollectionview uicollectionviewcell
    I have implemented Custom CollectionView but when i run my app it crashes and shows, ERROR : [UICollectionViewCell Mylabel]: unrecognized selector sent to instance…Here is my code snippet,- (void)viewDidLoad {[super viewDidLoad];[self.collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@”cvCell”]; }- (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection:(NSInteger)section { // No of Rows..CGSize result = [[UIScreen mainScreen] bounds].size;i

  • HighFlyingFantasy
    ios uicollectionview uicollectionviewcell
    I’m trying to use a UICollectionView in collaboration with a UICollectionViewCell to display thumbnails of images. The UICollectionViewCell’s used in my app are custom (simplistic) subclasses: #import “MemeCell.h”@implementation MemeCell- (id)initWithFrame:(CGRect)frame {self = [super initWithFrame:frame];if (self) {} return self; }-(void)setThumb:(UIImage *)image {if (_thumb != image) {_thumb = image;}_imageThumb.image = _thumb; }@endAnd in the File’s Owner of my UICollectionView, I use:- (UIC

  • The Kraken
    ios properties uicollectionview uicollectionviewcell
    I have a single view controller acting as both the dataSource and delegate for a UICollectionView. – (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath {PhotoCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@”PIC_CELL” forIndexPath:indexPath];UIImage *photo = [UIImage imageWithData:[[_fetchedImages objectAtIndex:indexPath.row] valueForKey:@”picture”]];if (photo) {cell.photo = photo;}return cell; }In the above method I instantiate

  • Piero
    iphone ios uicollectionview uicollectionviewcell
    I’m trying to create a UICollectionViewCell subclass with linked a xib, I have do this: I have create a new xib file and I have add a UICollectionViewCell in it, then I have create this subclass file:@interface MyCell : UICollectionViewCell@property (weak, nonatomic) IBOutlet UILabel *label; @endAlso I have linked in the file owner custom class the MyCell class in interface builder, and I have added a UILabel, then in my UICollectionView viewDidLoad I do this:[self.collectionView registerClass:[

  • VarunJi
    uicollectionview uicollectionviewcell
    i am creating a CollectionView app. where i am fetching data from server through JSON string. and my work flow is as followCreated Collection View Cell as ProjectVCollectionViewCell.h, .m, .xib.Code for .h is – @interface ProjectCollectionViewCell : UICollectionViewCell@property (weak, nonatomic) IBOutlet UIImageView *projectImage;@property (weak, nonatomic) IBOutlet UILabel *projectLabel;@endCode for .m is default and synthesized the above 2 variables. and .xib has Collection View Cell with Ima

  • Civatrix
    ios uicollectionview autolayout uicollectionviewcell
    I’m subclassing a UICollectionViewCell and doing all the layout in code with auto layout. This is my init method:- (id)initWithFrame:(CGRect)frame{frame = CGRectMake(0, 0, 403, 533);if (self = [super initWithFrame:frame]) {self.translatesAutoresizingMaskIntoConstraints = NO;PBCardPricesViewController *pricesView = [[PBCardPricesViewController alloc] init];[self addSubview:pricesView.view];UIImageView *background = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@”CardBackground”]];[self a

  • MicRO
    ios ios6 uicollectionview uicollectionviewcell
    Using a UICollectionView, I’m trying to add another UICollectionViewCell. This first code shows the first Cell and it runs fine. The problem occurs when I’m trying to add another UICollectionViewCell.static NSString *identifier = @”Cell”; // Default CellsUICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath]; UIImageView *illustrationImage = (UIImageView *)[cell viewWithTag:100]; illustrationImage.image = [UIImage imageNamed:[stackI

  • flexaddicted
    iphone ios cocoa-touch uicollectionview uicollectionviewcell
    I’m trying to setup an UICollectionView. At first I was using the basic UICollectionViewCell, it was working well, the cells were being displayed.Then I created my own collectionViewCell (subclassing UICollectionViewCell), to be able to display an image in the cell. I linked the custom cell in the Storyboard with an identifier and I also specified the right class for it. However, I keep having this error, and I don’t understand why: *** Terminating app due to uncaught exception ‘NSInternalIncon

  • Xman
    ios uicollectionviewcell
    Im following a tutorial that connects to the web to fetch data and puts it into core data. Ive set up my UICollectionView with a cell with its identifier but when i run the project i get this in the console:2013-06-23 20:26:17.051 UICollectionView[912:c07] Unknown class MyCellin Interface Builder file. 2013-06-23 20:26:17.055UICollectionView[912:c07] CoreData: error: Serious application error. An exception was caught from the delegate ofNSFetchedResultsController during a call to-controllerDidC

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