title: UIButton does not work when it in UIScrollView
body: <p>My structure of views:</p>
  
  <pre><code>UITableView
    UITableViewCell
      UIScrollView
        CustomView
          UIButton
  </code></pre>
  
  <p>The problem is UIButton doesn't work when I touch it.
  I create it with code:</p>
  
  <pre><code>btn = [[UIButton alloc] init];
  [btn setImage:image forState:UIControlStateNormal];
  [btn addTarget:self action:@selector(tileTouchUpInside) forControlEvents:UIControlEventTouchUpInside];
  btn.layer.zPosition = 1;
  [self addSubview:btn];
  </code></pre>
  
  <p>I've also add this:</p>
  
  <pre><code>scroll.delaysContentTouches = NO;
  scroll.canCancelContentTouches = NO;
  </code></pre>
  
  <p>But my button doesn't work anyway. I can't cancelContentTouches or set delay for UITableView because if I set it, UITableView stop scrolling verticaly.</p>
  
  <p>Thanks for any help! </p>