How can android find a certain activity or service based on a given Intent?
<p>Suppose that I installed app A and app B, app A has a main activity, and app B wants to show that activity by sending a intent. My question is that how android knows I have installed app A and is able to map the intent to its activity? Is there any windows-registry-like store saving such information?</p>

<p>Thank You</p>
