Debugging Android Applications

Using a debugger to manipulate application variables at runtime can be a powerful technique to employ while penetration testing Android applications. Android applications can be unpacked, modified, re-assembled, and converted to gain access to the underlying application code, however understanding which variables are important and should be modified is a whole other story that can be laborious and time consuming. In this blog post we'll highlight the benefits of runtime debugging and give you a simple example to get you going!

more here............http://blog.opensecurityresearch.com/2014/06/debugging-android-applications.html