code: @Deprecated
      public void setEmpty(){
          mState = STATE_EMPTY;
          mProgress.setVisibility(View.GONE);
          if(mEmptyIcon != -1) mIcon.setVisibility(View.VISIBLE);
          if(!TextUtils.isEmpty(mEmptyMessage)) mMessage.setVisibility(View.VISIBLE);
          if(!TextUtils.isEmpty(mEmptyActionText)) mAction.setVisibility(View.VISIBLE);
      }
docs: Set this view to it's empty state showing the icon, message, and action if configured
  
  @deprecated see {@link #setLoading(boolean)} and {@link #setState(int)}