android incoming call screen
<p>I would like to add details to the incoming call screen on android.
lets say I have a string 'x', so I want 'x' to show up on the incoming call screen under the name of the person who is currently calling.</p>

<p>I know this is possible because of these apps:
<a href="http://www.youtube.com/watch?v=LaRrJoqcVU4" rel="nofollow">CallerId</a>,
<a href="http://android.vringo.com/" rel="nofollow">Vringo</a> </p>

<p>I'm pretty new to this area, so I need to know what is the process to achieve that, for example: get the event of incoming call, go to the incoming call interface and so on.</p>

<p>Thanks!</p>
