How to achieve the toolbar does not follow the tableview scroll
<p>A toolbar1 and toolbar2 and tableview in the UIViewController;How to achieve a pull-scrolling tableview When toolbar2 reach y = 44 (that is, toolbar1 bottom) position is fixed, not scrolling with tableview scrolling, it would have been fixed in the bottom of the toolbar1? Effects similar to tableview header</p>

<p><img src="http://i.stack.imgur.com/dH89k.png" alt="enter image description here"></p>

<p><img src="http://i.stack.imgur.com/hPykq.png" alt="Effects similar to tableview header"></p>
