Android SwipeRefreshLayout RecyclerView冲突下拉冲突的解决方案

Posted 2022-08-15 jdsjlzx

SwipeRefreshLayout和RecyclerView一起使用的时候，有时出现RecyclerView没有滑动到顶部，手指向下滑动时，触发了SwipeRefreshLayout的刷新事件，造成了冲突。

首先来看一个博客分享的一个解决方法，如下：

mLayoutManager = new LinearLayoutManager(getActivity());
      //mPicListView是RecyclerView对象
      mPicListView.setLayoutManager(mLayoutManager);
      mPicListView.setOnScrollListener(new OnScrollListener() 
        @Override
        public void onScrollStateChanged(RecyclerView recyclerView,
            int newState) 
          super.onScrollStateChanged(recyclerView, newState);
          //加载更多
          if (!isLoading
              && hasMore
              && mAdapter.getItemCount() == (mLayoutManager
                  .findLastVisibleItemPosition() + 1)
              && newState == RecyclerView.SCROLL_STATE_IDLE) 
            isLoading = true;
            requestServerArticleMore();
          
        

        @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) 
          super.onScrolled(recyclerView, dx, dy);
          //解决RecyclerView和SwipeRefreshLayout共用存在的bug
          mRefreshLayout.setEnabled(mLayoutManager
              .findFirstCompletelyVisibleItemPosition() == 0);
        
      );

这个我试了下，也能解决，但与单个item不会超过屏幕高度的情况下，上面的解决方法是可行的，反之就不行了。

找了好久，又找到了更好的解决办法：

​​http://stackoverflow.com/questions/25178329/recyclerview-and-swiperefreshlayout​​

recyclerView.setOnScrollListener(new RecyclerView.OnScrollListener()
        @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) 
            int topRowVerticalPosition =
                    (recyclerView == null || recyclerView.getChildCount() == 0) ? 0 : recyclerView.getChildAt(0).getTop();
            swipeRefreshLayout.setEnabled(topRowVerticalPosition >= 0);

        

        @Override
        public void onScrollStateChanged(RecyclerView recyclerView, int newState) 
            super.onScrollStateChanged(recyclerView, newState);
        
    );

圆满解决问题。