Question

Why is the following not displaying the proper UITableView accessory view? It is simply displaying the UIAcessoryTypeCheckmark that was selected in the nib file.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForManagedObject:(NSManagedObject *)managedObject withIndexPath:(NSIndexPath *)indexPath{

    static NSString *CellIdentifier = @"Selection";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if(cell == nil) {
        cell = tvCell;
        self.tvCell = nil;
    }   
    self.tableView.rowHeight = 70.0f;

    //Background
    BOOL useDarkBackground = NO; //odd
    if(indexPath.row %2 == 0) useDarkBackground = YES; //even
    NSString *backgroundImagePath = [[NSBundle mainBundle] pathForResource:useDarkBackground ? @"DarkBackground" : @"LightBackground" ofType:@"png"];
    UIImage *backgroundImage = [[UIImage imageWithContentsOfFile:backgroundImagePath] stretchableImageWithLeftCapWidth:0.0 topCapHeight:1.0];
    cell.backgroundView = [[[UIImageView alloc] initWithImage:backgroundImage] autorelease];
    cell.backgroundView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
    cell.backgroundView.frame = cell.bounds;

    //Checkmark
    cell.userInteractionEnabled = YES;
    NSString *checkmarkImagePath;
    checkmarkImagePath = [[NSBundle mainBundle] pathForResource:[selectedObjects containsObject:managedObject] ? @"checkSelected" : @"checkUnselected" ofType:@"png"];
    if([selectedObjects count] == 0) {
        checkmarkImagePath = [[NSBundle mainBundle] pathForResource:@"checkUnselected" ofType:@"png"];
    }   
            UIImage *checkmarkImage = [[UIImage imageWithContentsOfFile:checkmarkImagePath] stretchableImageWithLeftCapWidth:0.0 topCapHeight:1.0];
    UIImageView *imageView = [[[UIImageView alloc] initWithImage:checkmarkImage] autorelease];
    imageView.contentMode = UIViewContentModeScaleAspectFit;
    imageView.frame = CGRectMake(10.0, 10.0, imageView.frame.size.width/1.2, imageView.frame.size.height/1.2);

    return cell;

}

For some reason, the following does work:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSManagedObject *objectToChange = [[self fetchedResultsControllerForTableView:tableView] objectAtIndexPath:indexPath]; //The object

[tableView deselectRowAtIndexPath:[tableView indexPathForSelectedRow] animated:NO];

UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];

NSString *checkmarkImagePath = [[NSBundle mainBundle] pathForResource:[selectedObjects containsObject:objectToChange] ? @"checkSelected" : @"checkUnselected" ofType:@"png"];
UIImage *checkmarkImage = [[UIImage imageWithContentsOfFile:checkmarkImagePath] stretchableImageWithLeftCapWidth:0.0 topCapHeight:1.0];
UIImageView *imageView = [[[UIImageView alloc] initWithImage:checkmarkImage] autorelease];
imageView.contentMode = UIViewContentModeScaleAspectFit;
imageView.frame = CGRectMake(10.0, 10.0, imageView.frame.size.width/1.2, imageView.frame.size.height/1.2);

cell.accessoryView = imageView;
}

Thanks a lot!

Answer 1

It doesn’t look like you’re adding the UIImageView to the accessory view of the cell in the first code block.

You’re also leaking all over the place. Make sure you adhere to the memory management guidelines set forth by Apple.