Exception when creating collectionViewCell - ios

Question

I'm trying to create a simple View : a tableView which takes like 80% of the screen, and a collectionView with 4 rows at the bottom. Everything works fine with my tableView but I can't get things right with my collectionView. I always get the following exception :
Terminating app due to uncaught exception 'NSInternalInconsistencyException',
reason: 'could not dequeue a view of kind: UICollectionElementKindCell with
identifier simpleCollectionCell - must register a nib or a class for the
identifier or connect a prototype cell in a storyboard'.
I've been looking in my View Controller : there are 2 refering outlets for my collectionVIew : datasource and delegate. So it's fine. And I'm using the method "withReuseIdentifier" so I don't have to declare an identifier in the nib. I've been trying to create a property for collectionView, but it changes nothing.
So I really don't see what I am missing ...
.h :
#import <UIKit/UIKit.h>
#interface MainViewController : UIViewController <UITableViewDelegate,
UITableViewDataSource, UICollectionViewDelegate, UICollectionViewDataSource>
#end
.m :
#import "MainViewController.h"
#interface MainViewController ()
#end
#implementation MainViewController {
NSArray *recipes;
NSArray *images; }
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self; }
- (void)viewDidLoad {
[super viewDidLoad];
recipes = [NSArray arrayWithObjects:#"Label1", #"Label2", #"Label3", #"Label4", #"Label5", #"Label6", #"Label7", #"Label8", #"Label9", #"Label10", #"Label11", #"Label12", #"Label13", #"Label14", #"Label15", nil];
images = [NSArray arrayWithObjects:#"img1", #"img2", #"img3", #"img4", nil];
// Do any additional setup after loading the view. }
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated. }
#pragma mark TableView methods
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [recipes count]; }
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:
(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"SimpleTableCell";
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:simpleTableIdentifier];
}
cell.textLabel.text = [recipes objectAtIndex:indexPath.row];
return cell;
}
#pragma mark CollectionView methods
- (NSInteger) numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
return 1;
}
- (NSInteger)collectionView:(UICollectionView *)collectionView
numberOfItemsInSection: (NSInteger)section {
return [images count];
}
- (UICollectionViewCell *) collectionView:(UICollectionView *)collectionView
cellForItemAtIndexPath:(NSIndexPath *)indexPath {
UICollectionViewCell *cell = [collectionView
dequeueReusableCellWithReuseIdentifier:#"cell" forIndexPath:indexPath];
return cell;
}
#end
Thanks in advance !

Answer 1

Make sure you have set the proper Custom Class(if any) as well as the Cell Identifier for the Collection View Cells in the Interface builder. Check this Screenshot.
This is for the Custom Class and the one below is for Cell Identifier.
The Identifier in your case is "cell". Make sure you have these set. They might be the problem here. Also the Class name of your CollectionViewCell and the one in your cellForItemAtIndexPath should be same.
Hope this helps.

Answer 2

You have To register your collection view cell
[self.dashBoardCollection registerNib:[UINib nibWithNibName:#"DashBoardCell" bundle:nil] forCellWithReuseIdentifier:#"DashBoardCell"];
may be in identity Inspector your are missing to name the Class

Answer 3

Oky u can try with this, just a simple way,
First create a new file in user interface select view and name as NibCell.
Then select the device (choose any one of them).
Delete what ever the content in the view.
Just drag and drop a new CollectionViewCell that's it.. :)
in the collectinview cell u can add image view (or any other objects u want) and set its tag to access.
for example
in viewDidLoad method
- (void)viewDidLoad
{
[super viewDidLoad];
//....other code
//nib register
UINib *cellNib = [UINib nibWithNibName:#"NibCell" bundle:nil];
[_collectionView registerNib:cellNib forCellWithReuseIdentifier:#"Cell"];
}
and in this method
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = #"Cell"; //u know the identifier
UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath]; //get the cell
UILabel *titleLabel = (UILabel *)[cell viewWithTag:100]; //for example i put a label and set it's tag to 100 and i an accessing it
[titleLabel setText:cellData];
return cell;
}