title: how to debug a source code of an android project that is unknown to you?
body: <p>Suppose, you were given a project source code of an Android app, a pretty BIG sized app. ( 30+ activities, each containing 2000+ lines of codes and 200+ layout XMLs, and so on ) You don't know anything about the code unless you read line by line. Now you were given a deadline to fix some bugs, but you don't know where to start or where to put breakpoints to debug. In that case, how would you do it? How would you debug the code?
  Thanks</p>
  <p>Edit: Code is not documented. Most variables are public static and called from everywhere. Its like, &quot;Everything is connected to everything&quot; kinda situation.</p>