code: private void toogleListView(View v) {
          if (mLastViewTouchId != v.getId()) {
              if (mLastViewTouchId == mListViewLeft.getId()) {
                  isLeftListEnabled = true;
                  isRightListEnabled = false;
              } else {
                  isLeftListEnabled = false;
                  isRightListEnabled = true;
              }
          }
      }
docs: Each time we touch the opposite ListView than the last one we have selected
  we need to activate it as the enable one