code: @SuppressWarnings("unused")
      public SwipeActionAdapter setFadeOut(boolean mFadeOut){
          this.mFadeOut = mFadeOut;
          if(mListView != null) mTouchListener.setFadeOut(mFadeOut);
          return this;
      }
docs: Set whether items should have a fadeOut animation
  
  @param mFadeOut true makes items fade out with a swipe (opacity to 0)
  @return A reference to the current instance so that commands can be chained