Developing Android outside of the SDK
<p>It seems as if every Android application I really want to make is impossible to make with the current SDK.  It doesn't give me access to certain things I would like to work with.  <a href="http://stackoverflow.com/questions/3571814/accessing-the-android-media-stream-for-audio-visualization">This</a> is an example of one of these things.</p>

<p>I know it is possible since I've seen apps in the market that do things that the SDK cannot do.  My basic question is can someone point me in the direction of how to create such an application.  I've searched around, but all of the links I've found are for developing with the SDK.  A simple link to a tutorial that can show me how to access Android elements that aren't available through the SDK would be great.</p>

<p>Thanks.</p>
