Extends Android APIs
<p>I work with Eclipse and implement some applications using the Android Emulator.</p>

<p>I'd like to know:</p>

<ol>
<li>is it possible to extend Android APIs with other .jar file?</li>
<li>If it's possible, how can I extend the APIs? I just have to add libraries to the project or do I copy it to the $ANDROID_HOME/platforms/android-8/tools/lib</li>
</ol>
