我不能在RecyclerView中禁用滚动。我尝试调用rv.setEnabled(false),但我仍然可以滚动。

我如何禁用滚动?


当前回答

扩展LayoutManager并覆盖canscrollhorizontal()和canscrollvertical()来禁用滚动。

注意,在开头插入项目不会自动回滚到开头,为了解决这个问题,可以这样做:

  private void clampRecyclerViewScroll(final RecyclerView recyclerView)
  {
    recyclerView.getAdapter().registerAdapterDataObserver(new RecyclerView.AdapterDataObserver()
    {
      @Override
      public void onItemRangeInserted(int positionStart, int itemCount)
      {
        super.onItemRangeInserted(positionStart, itemCount);
        // maintain scroll position at top
        if (positionStart == 0)
        {
          RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
          if (layoutManager instanceof GridLayoutManager)
          {
            ((GridLayoutManager) layoutManager).scrollToPositionWithOffset(0, 0);
          }else if(layoutManager instanceof LinearLayoutManager)
          {
            ((LinearLayoutManager) layoutManager).scrollToPositionWithOffset(0, 0);
          }
        }
      }
    });
  }

其他回答

出于某种原因,@Alejandro Gracia的回答在几秒钟后才开始工作。 我发现了一个解决方案,阻止RecyclerView瞬间:

recyclerView.addOnItemTouchListener(new RecyclerView.OnItemTouchListener() {
            @Override
            public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
                return true;
            }
            @Override
            public void onTouchEvent(RecyclerView rv, MotionEvent e) {
            }
            @Override
            public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
            }
        });
recyclerView.addOnItemTouchListener(new RecyclerView.SimpleOnItemTouchListener() {
        @Override
        public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
            // Stop only scrolling.
            return rv.getScrollState() == RecyclerView.SCROLL_STATE_DRAGGING;
        }
    });

重写onTouchEvent()和onInterceptTouchEvent()并返回false,如果你根本不需要OnItemTouchListener。 这不会禁用ViewHolders的OnClickListeners。

public class ScrollDisabledRecyclerView extends RecyclerView {
    public ScrollDisabledRecyclerView(Context context) {
        super(context);
    }

    public ScrollDisabledRecyclerView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public ScrollDisabledRecyclerView(Context context, @Nullable AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public boolean onTouchEvent(MotionEvent e) {
        return false;
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent e) {
        return false;
    }
}

我知道这个问题已经有了一个公认的答案,但是这个解决方案没有考虑到我遇到的用例。

我特别需要一个标题项,仍然是可点击的,但禁用了RecyclerView的滚动机制。这可以通过以下代码来完成:

recyclerView.addOnItemTouchListener(new RecyclerView.OnItemTouchListener() {
                            @Override
     public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
         return e.getAction() == MotionEvent.ACTION_MOVE;
     }

     @Override
     public void onTouchEvent(RecyclerView rv, MotionEvent e) {

     }

     @Override
     public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

    }
});

这对我来说很管用:

  recyclerView.setOnTouchListener(new View.OnTouchListener() {
      @Override
      public boolean onTouch(View v, MotionEvent event) {
          return true;
      }
  });