StackOverflow2013

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POCustom UITableViewCell Created Twice ... Driving me mad
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copied!<p>I have created a custom UITableViewCell which I want to dynamically expand and contract when a button is press on the cell. The method is called when the button is pressed but it would appear that the cell is getting created twice.... Therefore resetting the state... I have been pouring over this for days trying different things but am at a loss as to what is wrong...</p> <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"CategoryCell"; // Create a new Cell if necessary CategoryCell *cell = (CategoryCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[CategoryCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; cell.frame = CGRectMake(0.0, 0.0, 320.0, 67.0); NSLog( @"Cell Creation - Row %d", indexPath.row ); [cell.expandContractButton addTarget:self action:@selector(expandContractButtonPressed:) forControlEvents:UIControlEventTouchUpInside]; } else { NSLog( @"Cell Found - Row %d", indexPath.row ); } // Setup the cell ... </code></pre> <p>Log....</p> <pre><code>2012-03-24 11:44:02.158 Review Writer[13523:fb03] Number of rows 1 2012-03-24 11:44:02.172 Review Writer[13523:fb03] Cell Creation - Row 0 2012-03-24 11:44:02.192 Review Writer[13523:fb03] Row 0 - setting height 2012-03-24 11:44:02.197 Review Writer[13523:fb03] Cell Creation - Row 0 </code></pre> <p>Any pointers as to why this would be the case ?</p> <p>Code to populate the cell data</p> <pre><code>-(void)tableView:(UITableView *)tableView willDisplayCell:(CategoryCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath { NSLog(@"Setting up cell on Row %d - Expanded - %@", indexPath.row, cell.expanded ? @"YES" : @"NO"); [cell setSelectionStyle:UITableViewCellSelectionStyleNone]; Category *cat = [categoryList objectAtIndex:indexPath.row]; cell.categoryLabel.text = cat.category; cell.ratingLabel.text = cat.overall_rating; if (cell.expanded == YES) { [cell expandCell]; } else { [cell collapseCell]; } cell.reviewText.text = cat.review_text; if([cat.overall_rating isEqualToString:@"Not Rated"]){ [cell.ratingImage setImage:[UIImage imageNamed: @"0_stars.png"]]; } if([cat.overall_rating isEqualToString:@"Unsatisfactory"]){ [cell.ratingImage setImage:[UIImage imageNamed: @"1_stars.png"]]; } if([cat.overall_rating isEqualToString:@"Needs improvement"]){ [cell.ratingImage setImage:[UIImage imageNamed: @"2_stars.png"]]; } if([cat.overall_rating isEqualToString:@"Meets job requirements"]){ [cell.ratingImage setImage:[UIImage imageNamed: @"3_stars.png"]]; } if([cat.overall_rating isEqualToString:@"Exceeds job requirements"]){ [cell.ratingImage setImage:[UIImage imageNamed: @"4_stars.png"]]; } if([cat.overall_rating isEqualToString:@"Outstanding"]){ [cell.ratingImage setImage:[UIImage imageNamed: @"5_stars.png"]]; } // Put the accessory disclosure button on the cell cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton; } </code></pre> <p>Code to set the height of the cell...</p> <pre><code>- (CGFloat) tableView: (UITableView *) tableView heightForRowAtIndexPath: (NSIndexPath *) indexPath { // Use the method that you would have created above to get the cell. CategoryCell *cell = (CategoryCell*)[self tableView:tableView cellForRowAtIndexPath:indexPath]; NSString *text = cell.reviewText.text; // Note the 30 is a fudge factor... :-) Otherwise it does not include the last line... CGFloat width = [cell.reviewText frame].size.width - 30; CGFloat height = [text sizeWithFont:cell.reviewText.font constrainedToSize:CGSizeMake(width, 9999) lineBreakMode:UILineBreakModeWordWrap].height; NSLog( @"Row %d - setting height - Expanded = %@", indexPath.row, cell.expanded ? @"YES" : @"NO" ); if (cell.expanded == NO) { height = 0; } return height + 67; } </code></pre> <p>Code to expand / collapse the cell ...</p> <pre><code>- (IBAction) expandContractButtonPressed:(id) sender{ CategoryCell *clickedCell = (CategoryCell *)[[sender superview] superview]; NSIndexPath *clickedButtonPath = [self.tableView indexPathForCell:clickedCell]; CategoryCell *cell = (CategoryCell*)[self tableView:self.tableView cellForRowAtIndexPath:clickedButtonPath]; NSLog( @"EXPAND / COLLAPSE Row %d Exanded = %@", clickedButtonPath.row, clickedCell.expanded ? @"YES" : @"NO"); if (clickedCell.expanded == YES) { NSLog( @"Collapse" ); [cell collapseCell]; clickedCell.expanded = NO; } else { NSLog( @"Expand" ); [cell expandCell]; clickedCell.expanded = YES; } NSLog( @"Expanded after = %@", clickedCell.expanded ? @"YES" : @"NO" ); NSArray *indexPaths = [[NSArray alloc] initWithObjects:clickedButtonPath, nil]; [self.tableView reloadRowsAtIndexPaths:indexPaths withRowAnimation:NO]; } </code></pre>

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