title: Android: Programmatically detect if device has hardware menu button
body: <p>I'm currently struggling with this issue. I need to check if the device, where the app is installed, has a hardware menu key. Because it is not existing on some devices like Galaxy Nexus, I'm showing it directly in the UI in this case.</p>
  
  <p>I have already looked at PackageManager.hasSystemFeature(), but didn't find anything useful there.</p>
  
  <p>Has anyone already done this?</p>