how to access parent view reponder
<p>I have 3 viewcontroller. FirsViewController, SecondViewController and ThirdViewController. The FirstviewController is root viewcontroller and it is adding secondviewcontrooler xib as the subview. like..</p>

<p>[firstviewcontrollerObject.view addsubview:secondViewcontrollerObj.view].</p>

<p>In secondViewcontroller I have one button. When button touch action is called, ThirdViewController is loaded. like..</p>

<p>[SecondViewControllerobj.view addsubview:thirdviewcontrollerobj.view];</p>

<p>Now ThirdViewCOntroller is on the screen. This viewcontroller has nothing only a small button. So I am seeing 2 buttons on screen. First button is of SecondviewCOntroller and second button is of ThirdViewCOntroller. But, I am able to give touch action of 3rdviewcontroller only not 2ndviewcontroller button.</p>

<p>How should I design my view to take touch of both button and I don't want to merge both controller i one.</p>
