CODEWITHSUNDEEP
iphoneuitableview
AndyDev
AndyDev

Reputation: 1409

How can I determine if a UITableViewCell has been previously loaded?

Basically I want to check whether a cell in a UITableView has been loaded/viewed before so I can perform an animation on the first view of the cell. Does anyone know how I would go about doing this?

I'm guessing this is probably a backwards way of doing this, if you can think of a nicer way of checking then i'm all ears.

Thanks in advance!

Upvotes: 4

Views: 898

Answers (1)

Daniel Dickison
Daniel Dickison

Reputation: 21882

You should trigger the animation and keep track of which index paths have been displayed already in the tableView:willDisplayCell:forRowAtIndexPath:

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    // NSMutableSet *animatedIndexPaths; <-- this is an ivar.
    if (![animatedIndexPaths containsObject:indexPath])
    {
        [animatedIndexPaths addObject:indexPath];
        // Trigger your cell animation on cell.
    }
}

Upvotes: 6

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