两个(多个)RecyclerView联(滑)动实现

Yao_YongChao

于 2017-02-15 14:11:59 发布

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文章标签： RecyclerView联动

本文介绍了一种实现两个RecyclerView同步滚动的方法，通过为每个RecyclerView添加滚动监听器，并在其中一个RecyclerView滚动时，使另一个RecyclerView跟随滚动相同距离。

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实现思路：设置滑动监听，滑动左边recycler，右侧recycler跟着移动相应距离即可(注意：条目高度要相等，如果添加分割线，注意分割线高度)

private void syncScroll(final RecyclerView rlvLeft, final RecyclerView rlvRight) {
    rlvLeft.addOnScrollListener(new RecyclerView.OnScrollListener() {
        @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
            if (recyclerView.getScrollState() != RecyclerView.SCROLL_STATE_IDLE) {
                // note: scrollBy() not trigger OnScrollListener
                // This is a known issue. It is caused by the fact that RecyclerView does not know how LayoutManager will handle the scroll or if it will handle it at all.
                rlvRight.scrollBy(dx, dy);
            }
        }
    });

    rlvRight.addOnScrollListener(new RecyclerView.OnScrollListener() {
        @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
            if (recyclerView.getScrollState() != RecyclerView.SCROLL_STATE_IDLE) {
                rlvLeft.scrollBy(dx, dy);
            }
        }
    });
}