IPhone : Why is UITableViewCell taking long gesture?

I have a UITableView inside a UIView, lets call it view_A. There's a UIViewController, call it mainViewController. Inside it there is a UIButton. On tapping that button I add the view_A as a subview to mainViewController's view. The tableview has several menu items in it. The problem is the tableview is not responding to the touch correctly. I have to tap the cell long to make a selection. There's no gesture added on it. There's no other view covering it. It's absolutely bizzare, this behavior. Please take a look at the following code and point out what might be causing the trouble. This is the delegate implementation/presentations in mainViewcontroller:

 -(void) showDropDownMenu: (UIButton *) sender
    {
        UINib *nib = [UINib nibWithNibName:@"DropDownMenuView" bundle:nil];
        self.myView = [[nib instantiateWithOwner:self options:nil] objectAtIndex:0];
        self.myView.hidden = NO;
        self.myView.tag = 101;
        self.myView.delegate = self;
        self.myView.btnBack.hidden = YES;
        CATransition *transition = nil;
        transition = [CATransition animation];
        transition.duration = 0.2;
        transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
        transition.type = kCATransitionPush;
        transition.subtype =kCATransitionFromBottom ;
        transition.delegate = self;
        [self.myView.layer addAnimation:transition forKey:nil];
        [self.view addSubview:self.myView];

    }

-(void) hideDropDownMenu
{
   CATransition *transition = nil;
    transition = [CATransition animation];
    transition.duration = 0.2;//kAnimationDuration
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault];
    transition.type = kCATransitionPush;
    transition.subtype =kCATransitionFromTop;
    transition.delegate = self;
    [self.myView.layer addAnimation:transition forKey:nil];
    self.myView.tag = 102;
    [UIView commitAnimations];



}
-(void) navigateBack
{

}
-(void) themeSelected: (NSIndexPath *) indexPath
{
    NSLog(@"%ld",(long)indexPath.item);
    themeNumber = [NSString stringWithFormat:@"%li",(indexPath.row+1)];
    [self setUpTheme];
}

1. 
   

   My View_A .h file can be found here.

   
   


2. 
   

   View_A.m file can be found here.