code: public static Intent createOAuthActivityIntent(final Context context, BoxSession session, boolean loginViaBoxApp){
          Intent intent = createOAuthActivityIntent(context, session.getClientId(), session.getClientSecret(), session.getRedirectUrl(), loginViaBoxApp);
          intent.putExtra(EXTRA_SESSION, session);
          if (!SdkUtils.isEmptyString(session.getUserId())) {
              intent.putExtra(EXTRA_USER_ID_RESTRICTION, session.getUserId());
          }
          return intent;
      }
docs: Create intent to launch OAuthActivity using information from the given session.
  @param context
  context
  @param session the BoxSession to use to get parameters required to authenticate via this activity.
  @param loginViaBoxApp Whether login should be handled by the installed box android app. Set this to true only when you are sure or want
  to make sure user installed box android app and want to use box android app to login.
  @return intent to launch OAuthActivity.