title: how to develop a replacement for the android lock screen
body: <p>I need to put my app on the lock screen (android 2.2)!</p>
  
  <p>I think there are two options for do this:</p>
  
  <ol>
  <li>Develop an app to replace android's lock screen. This app whould be called when the off button is pressed.</li>
  <li>Insert my app button into android's actual lockscreen, so, my app would work, even if the screen is locked, and eventually, my app could unlock the screen.</li>
  </ol>
  
  <p>I don't know how to do it, but I do know it is possible, since some music players can be downloaded and the music player options are in the lockscreen.</p>
  
  <p>Can anybody help me out?
  thanks.</p>