Android ListView中如何进行精确的定位

private final LinkedList<Integer> mPositionsList = new LinkedList<Integer>();
    private final LinkedList<Integer> mHeightsList = new LinkedList<Integer>();

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在 onItemClick(AdapterView<?> parent, View view, int position, long id)  中记录点击的位置，以及相对第一行的位置，
                    int iFirstPosition = mListView.getFirstVisiblePosition() == 0 ? -1 : mListView
                            .getFirstVisiblePosition();
                    int mToTopHeight = (position - iFirstPosition)
                            * (view.getHeight() + mListView.getDividerHeight())
                            - mListView.getDividerHeight();
                    mPositionsList.add(position);
                    mHeightsList.add(mToTopHeight);
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在需要恢复的位置上添加以下代码：
            mListView.setSelectionFromTop(mPositionsList.getLast(), mHeightsList.getLast());
            mPositionsList.removeLast();
            mHeightsList.removeLast();

mListView.setSelectionFromTop(mPositionsList.getLast(), mHeightsList.getLast());