am 776edcfe: Merge "[PB2] Small bugfix"

        @Override

        public void onClick(final View v) {

            final Button button = (Button)v.findViewById(R.id.wordlist_button);

            animateButton(button, ANIMATION_IN);

            final ViewParent parent = v.getParent();

            // Just in case something changed in the framework, test for the concrete class

            if (!(parent instanceof ListView)) return;

            final ListView listView = (ListView)parent;

            final int myIndex = listView.indexOfChild(v) + listView.getFirstVisiblePosition();

            if (NOT_AN_INDEX != sLastClickedIndex) {

                // If another button is showing, hide it

                animateButton(getButtonForIndex(listView, sLastClickedIndex), ANIMATION_OUT);

            }

            if (sLastClickedWordlistId == mWordlistId) {

                // This button was being shown. Clear last state to record that there isn't a

                // displayed button any more.

                sLastClickedIndex = NOT_AN_INDEX;

                sLastClickedWordlistId = null;

            } else {

                // This button was not being shown. Show it and mark it as the latest selected

                // button.

                animateButton(button, ANIMATION_IN);

                sLastClickedIndex = myIndex;

                sLastClickedWordlistId = mWordlistId;

            }

        }

    }

    private Button getButtonForIndex(final ListView listView, final int index) {

        final int indexInChildren = index - listView.getFirstVisiblePosition();