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POCheckbox crash when update tableView
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copied!<p>I had search on SO but cannot find the solution.</p> <p>My problem is checkbox is crash when update the tableView. but, everything work fine if I add the checkbox code after I update my tableView. Here my code:</p> <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView2 cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView2 dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier]autorelease]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; } //set up cell CGFloat nRed= 0/255.0; CGFloat nGreen=73.0/255.0; CGFloat nBlue=144.0/255.0; UIColor *myColor=[[UIColor alloc]initWithRed:nRed green:nGreen blue:nBlue alpha:1]; cell.textLabel.text = [[AryStoreknowItem objectAtIndex:indexPath.row] objectForKey:@"title"]; cell.textLabel.font=[UIFont fontWithName:@"HelveticaNeue-Bold" size:15]; cell.textLabel.textColor=myColor; cell.backgroundColor = [UIColor colorWithRed: 0.0 green: 0.0 blue: 0.2 alpha: 1.0]; //set icon image for cell cell.imageView.image = [UIImage imageNamed: [[AryStoreknowItem objectAtIndex:indexPath.row] objectForKey:@"icon"]]; //add checkbox on cell tableView NSMutableDictionary *item = [AryStoreknowItem objectAtIndex:indexPath.row]; [item setObject:cell forKey:@"cell"]; //HERE GOT CRASH!!!!!!!!!!!!!!!!!!!!!!!!!!! BOOL checked = [[item objectForKey:@"checked"] boolValue]; UIImage *image = (checked) ? [UIImage imageNamed:@"checked.png"] : [UIImage imageNamed:@"unchecked.png"]; UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; CGRect frame = CGRectMake(0.0, 0.0, image.size.width, image.size.height); button.frame = frame; // match the button's size with the image size [button setBackgroundImage:image forState:UIControlStateNormal]; // set the button's target to this table view controller so we can interpret touch events and map that to a NSIndexSet [button addTarget:self action:@selector(checkButtonTapped:event:) forControlEvents:UIControlEventTouchUpInside]; button.backgroundColor = [UIColor clearColor]; cell.accessoryView = button; return cell; } - (void)checkButtonTapped:(id)sender event:(id)event { NSSet *touches = [event allTouches]; UITouch *touch = [touches anyObject]; CGPoint currentTouchPosition = [touch locationInView:self->tableView]; NSIndexPath *indexPath = [self->tableView indexPathForRowAtPoint: currentTouchPosition]; if (indexPath != nil) { [self tableView: self->tableView accessoryButtonTappedForRowWithIndexPath: indexPath]; } } - (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath { NSMutableDictionary *item = [selectedCheckArray objectAtIndex:indexPath.row]; BOOL checked = [[item objectForKey:@"checked"] boolValue]; [item setObject:[NSNumber numberWithBool:!checked] forKey:@"checked"]; UITableViewCell *cell = [item objectForKey:@"cell"]; UIButton *button = (UIButton *)cell.accessoryView; UIImage *newImage = (checked) ? [UIImage imageNamed:@"checked.png"] : [UIImage imageNamed:@"checked.png"]; [button setBackgroundImage:newImage forState:UIControlStateNormal]; [cell setAccessoryType:UITableViewCellAccessoryCheckmark]; } </code></pre> <p>can anyone give me any ideas how to solve this?thanx for your time for reviewing my question</p>

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