How to use Button to control another View
<p>My linear layout has two views:</p>

<ol>
<li>Custom View that display dynamic stuff</li>
<li>One button </li>
</ol>

<p>I'd like to use the button to invalidate the custom view so that it can be redrawn by Android. I've implemented the <code>onClickListener()</code> inside the Activity where all the views are located. But the <code>OnClickListener()</code> doesn't seem to have access to other viewers other than the view which the listener is bound to. How to call invalidate() on a different view from the button's <code>OnClickListener()</code>?</p>
