How to determine if my app is running on Android [duplicate]

Answer 1

I use this in my processing sketch to determine in which mode I'm running i.e. where I'm running it.

enum Mode {
  java, android
}

Mode getMode() {
  return System.getProperty("java.runtime.name").equals("Android Runtime") ? Mode.android : Mode.java;
}

if (getMode() == Mode.java){
  // do something
  // eg: do something that android can't handle
} else {
  // do android stuff 
  // eg: scale the sketch by 2 to improve visibility
}