刷新期间SwipeRefreshLayout圆滞后

Question

在onResume中，我在线程中设置和更新了recylclerview适配器。在设置或更新之前，请先执行swipeRefreshLayout.setRefreshing（true），然后执行此swipeRefreshLayout.setRefreshing（false）。但是SwipeRefreshLayout的圆圈滞后甚至不可见。

@Override
    protected void onResume() {
        super.onResume();
        swipeRefreshLayout.setRefreshing(true);
        new Thread(new Runnable() {
            public void run() {
                if(first) {
                    adapter= new Adapter(MainActivity.this, list1, list2, list3, true);

                }else{
                    adapter.update(list1, list2, list3);
                }
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        if(first){
                            recyclerView.setAdapter(adapter);
                            first = false;
                        }else {
                            adapter.notifyDataSetChanged();
                        }
                        swipeRefreshLayout.setRefreshing(false);
                    }
                });

            }
        }).start();
    }