LISTVIEW 获取精确的垂直滚动距离 -电脑资料

    listview.setOnScrollListener(new AbsListView.OnScrollListener() {

    private SparseArrayrecordSp = new SparseArray(0);

    private int mCurrentfirstVisibleItem = 0;

    @Override

    public void onScrollStateChanged(AbsListView view, int scrollState) {

    }

    @Override

    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {

    mCurrentfirstVisibleItem = firstVisibleItem;

    View firstView = view.getChildAt(0);

    if (null != firstView) {

    ItemRecod itemRecord = recordSp.get(firstVisibleItem);

    if (null == itemRecord) {

    itemRecord = new ItemRecod();

    }

    itemRecord.height = firstView.getHeight();

    itemRecord.top = firstView.getTop();

    recordSp.append(firstVisibleItem, itemRecord);

    }

    LogUtils.d(xiaoqiang, getScrollY() + );

    }

    private int getScrollY() {

    int height = 0;

    for (int i = 0; i < mCurrentfirstVisibleItem; i++) {

    ItemRecod itemRecod = recordSp.get(i);

    height += itemRecod.height;

    }

    ItemRecod itemRecod = recordSp.get(mCurrentfirstVisibleItem);

    if (null == itemRecod) {

    itemRecod = new ItemRecod();

    }

    return height - itemRecod.top;

    }

    class ItemRecod {

    int height = 0;

    int top = 0;

    }

    });