Question

I have a custom UITableView subclass that inserts a separator line as a subview, like this:

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        CGRect frame = [self bounds];

        frame.origin.y = CGRectGetMaxY(frame) - 1;
        frame.size.height = 1;

        UIView *separator = [[[UIView alloc] initWithFrame:frame] autorelease];

        [separator setBackgroundColor:[UIColor whiteColor]];
        [separator setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin];

        [self addSubview:separator];
    }
    return self;
}

This draws a nice line beneath my cell. However, when the tableview is in edit mode and I drag to reorder the cells, this subview disappears!

Everything else looks the same, and the opacity of the cell is reduced as it is dragged, but why would this subview be removed?

Answer 1

Overriding drawRect works:

- (void)drawRect:(CGRect)rect
{
    [super drawRect:rect];

    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextSaveGState(context);
    CGContextSetFillColorWithColor(context, [[UIColor whiteColor] CGColor]);
    CGContextFillRect(context, CGRectMake(0, CGRectGetMaxY(rect)-.5, CGRectGetWidth(rect), .5));
    CGContextFillRect(context, CGRectMake(0, 0, CGRectGetWidth(rect), .5));
    CGContextRestoreGState(context);
}