Http Status Code in Android Volley when error.networkResponse is null

Question

I am using Google Volley on the Android platform. I am having a problem in which the error parameter in onErrorResponse is returning a null n

Answer 1

The error.networkResponse will be null, if the device has no network connection (you can proof this by enabling the airplane mode). Look at the corresponding code fragment from the Volley library.

You have to check then, if the error is an instance of the NoConnectionError, before you look for the networkResponse. I cannot agree, that 401 error is not supported by Volley, I tested it and got a non-null networkResponse object back with 401 status code. Look at the corresponding code here.