title: Android - How to use included library projects in your main and call their activities
body: <p>I've got a few projects Im trying to combine into one and Ive already included all the other projects as library ones through the settings. What Im sort of stuck on is how to use them in my main activity.</p>
  
  <p>Ive messed around and feel like Ive almost got it but Im just stuck. I know I have to declare all the new activities in the main manifest but Im not sure about what to include in the main .java activity inorder to call from the newly included stuff.</p>
  
  <p>Is this something that I could figure out by looking at the android api demos that come with the sdk?</p>
  
  <p>Can some one point me to an open source project somewhere and explain the process used to include the library projects.</p>
  
  <p>Any help would be much appreciated. </p>