2D NSMutableArray in UICollectionView - ios

Question

I'm new in IOS and I don't have idea that how to populate my 2D array in collectionView.
**How Will I display following in collectionView using Labels.
myArray[0]->1,2,3,4,5
myArray[1]->6,7,8,9
myArray[2]->10,11,12,15
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
// What to call here as this is 2D?
return self.myArray.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
NSString *simpleId= #"CollectionViewCell";
TableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:simpleId forIndexPath:indexPath];
//What to write here ? Cell contain 1 Label
}

Answer 1

Try to do like this (as #Larme suggested)-
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
NSString *simpleId= #"CollectionViewCell";
TableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:simpleId forIndexPath:indexPath];
cell.lbl.text= [NSString stringWithFormat:#"%#",[[self.myArray objectAtIndex:indexPath.section] objectAtIndex:indexPath.row]];
return cell;
}
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{
return self.myArray.count;
}
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
return [[self.myArray objectAtIndex:section] count]
}
In your 2D array myArray[0] is first section consist 5 value, myArray[1] is second section consist 4 values and myArray[2] is second section consist 5 values. So 2D Array can be easily managed by numberOfSection and numberOfItemsInSection methods. Hope this will help you..