StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POIPhone reloadRowsAtIndexPaths weird animation
text
Body
copied!<p>Hi I'm new to this iPhone dev and I have a question about reloadRowsAtIndexPaths. When the user taps one cell, it will expand showing buttons underneath it and tapping it again closes the cell. This works fine when opening and closing cell one at a time, but I have this weird animation when tapping cells in sequence like cell one is tapped, cell 2 is tapped the animation gets weird. Please see the video to fully understand the situation and sorry for the low quality.</p> <p><a href="http://www.youtube.com/watch?v=R28Rmti9wPQ" rel="nofollow">http://www.youtube.com/watch?v=R28Rmti9wPQ</a></p> <p>and here's the code for reloading the cells</p> <pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath { [tableView deselectRowAtIndexPath:indexPath animated:YES]; selectedIndexPath = indexPath; //close the selected cell if it's open if(selectedIndex == indexPath.row) { selectedIndexPath = nil; [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; selectedIndex = -1; selectedIndexPath = indexPath; return; } //this will reload the previously open cell to avoid it from being recycled if(selectedIndex >= 0) { NSIndexPath *previousPath = [NSIndexPath indexPathForRow:selectedIndex inSection:0]; selectedIndex = indexPath.row; [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:previousPath] withRowAnimation:UITableViewRowAnimationFade]; } //now reload the selected cell if(selectedIndexPath != nil && [selectedIndexPath isEqual:indexPath]) { [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; } } </code></pre> <p>and here's the code for creating the cellForRowAtIndexPath.</p> <pre><code>if(selectedIndexPath != nil && [selectedIndexPath isEqual:indexPath]) { selectedIndex = indexPath.row; static NSString *CustomCellIdentifier = @"CustomCell"; CustomCell *customCell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier: CustomCellIdentifier]; if (customCell == nil) { customCell = [[[CustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CustomCellIdentifier] autorelease]; } customCell.locationLabelOutlet.text = [usgsFeeds objectAtIndex:[indexPath row]]; customCell.dateLabelOutlet.text = [pubDateArr objectAtIndex:[indexPath row]]; float thisMag; thisMag = [(NSNumber *)[magnitudeArr objectAtIndex:[indexPath row]] floatValue]; customCell.magnitudeImageOutlet.image = [self imageForMagnitude:thisMag]; [customCell setSelectionStyle:UITableViewCellSelectionStyleNone]; return customCell; } else{ static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; [cell setSelectionStyle:UITableViewCellSelectionStyleNone]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; locationLabel = [[[UILabel alloc] initWithFrame:CGRectMake(10, 3, 225, 20)] autorelease]; locationLabel.tag = kLocationLabelTag; locationLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:14.0]; locationLabel.backgroundColor = [UIColor clearColor]; [cell.contentView addSubview:locationLabel]; //and all other views for the cell.... </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload