How can one detect airplane mode on Android?

Question

I have code in my application that detects if Wi-Fi is actively connected. That code triggers a RuntimeException if airplane mode is enabled. I would like to display a separate error message when in this mode anyway. How can I reliably detect if an Android device is in airplane mode?

Answer 1

/**
* Gets the state of Airplane Mode.
* 
* @param context
* @return true if enabled.
*/
private static boolean isAirplaneModeOn(Context context) {

   return Settings.System.getInt(context.getContentResolver(),
           Settings.Global.AIRPLANE_MODE_ON, 0) != 0;

}