title: Interact with other views while a popover is active
body: <p>I have a <code>toolBar</code> and I have setup two <code>UIBarButtonItem</code> on it. Both <code>UIBarButtonItem</code> are containing <code>UIButton</code>s as their <code>customView</code>s. </p>
  
  <p>I activate a popover for their <code>Touch Up Inside</code> event as below,</p>
  
  <pre><code>    [popover1 presentPopoverFromBarButtonItem:buttonItem1 permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
  </code></pre>
  
  <p>I have another <code>UIButton</code> named <strong>clearFilters</strong> inside the main view. (Also this is the view which is containing the above <code>toolBar</code>.) I have declared a method for <strong>clearFilters</strong> button's <code>Touch Up Inside</code> event. </p>
  
  <p>My problem is,
  I can not interact with the <strong>clearFilters</strong> button while a <code>popover</code> is active. So, I'm looking for a solution to interact with this <strong>clearFilters</strong> button, while a <code>popover</code> is active.</p>
  
  <p>I tried by adding <code>passthroughViews</code> property for a <strong>popover</strong> as below and it do not work as I expect.</p>
  
  <pre><code>popover1.passthroughViews = [NSArray arrayWithObject:clearFiltersButton];
  </code></pre>
  
  <p>What could be the reason. As the documentation has mentioned I can not see any issue. </p>
  
  <p>I expect if the above things are correct, then the <code>Touch Up Inside</code> event of the the <strong>clearFilters</strong> button's should be fire up.</p>
  
  <p>So, please show me if there is any issue or a necessary way to work on this thing.</p>
  
  <p>I'm working on XCode4 and iOS 4.3.</p>
  
  <p>Thanks. </p>