title: How to get the wifi configuration file location in android
body: <p>I'm developing an app that backup the wifi configuration from any android device (rooted)
  so I want to know how to get the file location in the android device so can I deal with it.</p>
  
  <p>I know there is a lot of location depending on your ROM or device</p>
  
  <p>like <code>/data/wifi/bcm_supp.conf</code> or <code>/data/misc/wifi/wpa_supplicant.conf</code></p>
  
  <p>but I want to get it dynamically .</p>