title: Controlling Display Refresh Rate on Android Device
body: <p>Not yet a developer, just trying to find out if an android app can do what I need..</p>
  
  <p><strong>What I need:</strong></p>
  
  <p>Simple app that displays a full frame of a single color onscreen at a certain intensity at a fixed frequency! I need it for a synchronization purpose with as high a resolution as possible (achieved by changing an intensity in a known pattern with as high a fixed frequency as possible).</p>
  
  <p><strong>What questions I have:</strong></p>
  
  <ol>
  <li><p>Does an android device run with a
  fixed display frequency or is there
  any way to set it to a fixed
  frequency of say 60fps?</p></li>
  <li><p>If the fixed frequency can be
  achieved, is there a vsync interrupt
  or something similar that lets me
  change the intensity on the screen
  at the right time.</p></li>
  <li><p>If the above two things can be
  achieved, which approach do I need
  to take. I'm thinking I need to look
  at OpenGL ES and perhaps NDK....
  Could anyone please point me in the
  right direction....</p></li>
  </ol>