Hello All,

Following lines of code will customize the delete button in UITableView editing style.
This is an override method of UITableViewCell which is called when UITableView goes in editing mode.
So to customize the delete button in UITableView editing style use this override method in your Custom UITableViewCell.

- (void)willTransitionToState:(UITableViewCellStateMask)state
{
    [super willTransitionToState:state];
    if ((state & UITableViewCellStateShowingDeleteConfirmationMask) == UITableViewCellStateShowingDeleteConfirmationMask)
    {

            for (UIView *subview in self.subviews)
            {
                NSLog(@"mmmmmmm22222 %@",subview);
                if ([NSStringFromClass([subview class]) isEqualToString:@"UITableViewCellScrollView"])
                {
                    CGRect frame = subview.frame;
                    UIView *view = [[UIView alloc]initWithFrame:CGRectMake(frame.size.width+frame.origin.x, 0, 150, frame.size.height)];
                    [view setBackgroundColor:[UIColor colorWithRed:(142.00/255.00) green:(178.00/255.00) blue:(217.00/255.00) alpha:1]];
                    UIImageView *imageView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"trash_icon"]];
                    [imageView setFrame:CGRectMake(20, (view.frame.size.height-32)/2, 26, 32)];
                    [view addSubview:imageView];
                }
            }

        }
}

Happy coding.....