title: Does Android OS 4.1 (Jelly Bean) use HWUI or SKIA?
body: <p>I have read an answer related to SKIA library here in stackoverflow that
  Android OS 3.0 or above is using HWUI library.</p>
  
  <p>I wonder if Android OS 4.1 or higher uses whether SKIA graphic library or HWUI library,
  or it uses both.</p>
  
  <p>Can anyone clarify my curiousity?</p>
  
  <p>Thank you.</p>