Question

I have a TableView with CoreData and Custom Cells which all works fine.

now when I select a cell to have its content edited and return from it, by just tapping the back button in a UINavigationController, I have something strange happen.

Please see the images what I mean. It seems that the updated UILabels are being placed on top of the old ones instead of being ‘updated’??
Did I miss something??

You will see the difference in the top cell but it happens to all of them.

Edit: Added Code

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 {
static NSString *cellIdentifier = @"Cell";

customCell = [_mainTableView dequeueReusableCellWithIdentifier:cellIdentifier forIndexPath:indexPath];
if (customCell == nil)
{
    customCell = [[MNCustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];

    CGRect frameTitle;
    frameTitle = CGRectMake(20, 4, 195, 21);

    CGRect frameSummary;
    frameSummary = CGRectMake(20, 25, 250, 30);

    CGRect frameDate;
    frameDate = CGRectMake(200, 4, 100, 21);

    MNotes *mnotes = [[self fetchedResultsController] objectAtIndexPath:indexPath];

    //Strings for Title and Summary
    titleString = mnotes.noteTitleString;
    summaryString = mnotes.mainNoteString;

    NSLog(@"TITLE STRING = %@", titleString);

    //Date
    SORelativeDateTransformer *relativeDateTransformer = [[SORelativeDateTransformer alloc] init];
    relativeDate = [relativeDateTransformer transformedValue:mnotes.createDate];

    customCell.noteTitle = [[UILabel alloc] initWithFrame:frameTitle];
    customCell.noteTitle.backgroundColor = [UIColor clearColor];
    customCell.noteTitle.font = [UIFont systemFontOfSize:20];
    customCell.noteTitle.userInteractionEnabled = NO;
    customCell.noteTitle.textColor = [self colorWithHexString:@"274D70"];

    customCell.noteSummary = [[UITextView alloc] initWithFrame:frameSummary];
    customCell.noteSummary.backgroundColor = [UIColor clearColor];
    customCell.noteSummary.font = [UIFont systemFontOfSize:10];
    customCell.noteSummary.userInteractionEnabled = NO;

    customCell.noteDate = [[UILabel alloc] initWithFrame:frameDate];
    customCell.noteDate.backgroundColor = [UIColor clearColor];
    customCell.noteDate.font = [UIFont systemFontOfSize:16];
    customCell.noteDate.userInteractionEnabled = NO;
    customCell.noteDate.textColor = [self colorWithHexString:@"274D70"]; //#274D70

}

customCell.noteTitle.text = titleString;
customCell.noteSummary.text = summaryString;
customCell.noteDate.text = relativeDate;

[customCell.contentView addSubview:customCell.noteTitle];
[customCell.contentView addSubview:customCell.noteSummary];
[customCell.contentView addSubview:customCell.noteDate];

 return customCell;
 }

Answer 1

This problem is solved when you set a background color to your UILabel. I had it set to:

[UIColor clearColor];

This meant that I would keep seeing what happend to all previous entries.

So set it to any color e.g. [UIColor blueColor];