實現思路：設置滑動監聽，滑動左邊recycler，右側recycler跟著移動相應距離即可(注意：條目高度要相等，如果添加分割線，注意分割線高度)
private void syncScroll(RecyclerView leftList, RecyclerView rightList) {
leftList.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.
rightList.scrollBy(dx, dy);
}
}
});
rightList.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
if (recyclerView.getScrollState() != RecyclerView.SCROLL_STATE_IDLE) {
leftList.scrollBy(dx, dy);
}
}
});
}