reloading tableview and touch gestures

Question

I have a tableview which is being reloaded as new content is added, using [tableview reloadData];

Trouble is I have a UILongPressGestureRecognizer on the TableCells in the Table and because the cells / table are being reloaded quite often the LongPress doesnt always have time to work as, I'm guessing it's internal timers are being reset when the cell/table is being reloaded.

Answer 1

Have you tried looking at the state of your UILongPressGestureRecognizers before [tableView reloadData] is called? For example:

// Returns |YES| if a gesture recognizer began detecting a long tap gesture
- (BOOL)longTapPossible {
    BOOL possible = NO;

    UIGestureRecognizer *gestureRecognizer = nil;
    NSArray *visibleIndexPaths = [tableView indexPathsForVisibleRows];

    for (NSIndexPath *indexPath in visibleIndexPaths) {
        // I suppose you have only one UILongPressGestureRecognizer per cell
        gestureRecognizer = [[tableView cellForRowAtIndexPath:indexPath] gestureRecognizers] 
                                lastObject];
        possible = (gestureRecognizer.state == UIGestureRecognizerStateBegan ||
                    gestureRecognizer.state == UIGestureRecognizerStateChanged);
        if (possible) {
            break;
        }
    }
    return possible;
}

// ... later, where you reload the tableView:

if ([self longTapPossible] == NO) {
    [tableView reloadData];
}

Let me know if it works!