Reusability issue on UICollectionView

Question

I had worked with UITableView but I have never ever use of UICollectionView in my apps. So I want to create UICollectionView programmatic

Answer 1

You can do it with two way.

Remove UILabel form view.

 - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"cellIdentifier" forIndexPath:indexPath];
    for (UILabel *lbl in cell.contentView.subviews)
    {
        if ([lbl isKindOfClass:[UILabel class]])
        {
            [lbl removeFromSuperview];
        }
    }
    UILabel *lblCategoryTitle =[[UILabel alloc]init];

    [lblCategoryTitle  setFont: [UIFont fontWithName:@"OpenSans-Bold" size:14]];
    lblCategoryTitle.textAlignment = NSTextAlignmentCenter;
    lblCategoryTitle.frame = CGRectMake(3.5, 90, 90, 24);
    lblCategoryTitle.textColor = [UIColor blackColor];
    lblCategoryTitle.text = @"Product 1";
    lblCategoryTitle.backgroundColor = [UIColor clearColor];
    lblCategoryTitle.numberOfLines = 2;
    [cell.contentView addSubview:lblCategoryTitle];
    return cell;
}

Use tag to get Label

 - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"cellIdentifier" forIndexPath:indexPath];
    UILabel *lblCategoryTitle =(UILabel *) [cell viewWithTag:5];
    if (!lblCategoryTitle) {
        lblCategoryTitle=[[UILabel alloc]init];
        [cell.contentView addSubview:lblCategoryTitle];

    }
    [lblCategoryTitle  setFont: [UIFont fontWithName:@"OpenSans-Bold" size:14]];
    lblCategoryTitle.tag=5;
    lblCategoryTitle.textAlignment = NSTextAlignmentCenter;
    lblCategoryTitle.frame = CGRectMake(3.5, 90, 90, 24);
    lblCategoryTitle.textColor = [UIColor blackColor];
    lblCategoryTitle.text = @"Product 1";
    lblCategoryTitle.backgroundColor = [UIColor clearColor];
    lblCategoryTitle.numberOfLines = 2;
    return cell;
}