Android 如何在片段内部的CardView上实现SwipeRefreshLayout？

RecentNewsFragment.java

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如您所见，这是我为CardView构建的代码。不幸的是，我的布局不起作用。它可以工作，但仅限于动画，不会刷新视图。我是不是把setOnRefreshListener放错地方了，还是我只是错过了什么？谢谢您的帮助。

您的回调方法放错了位置。您应该在onRefresh方法中创建一个新请求，而不是相反

private static final String NEWS_URL = "http://192.168.0.29/theflare/app/news.php";

private SwipeRefreshLayout mSwipeRefreshLayout;
private RecyclerView mRecyclerView;

@Override
public view onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {

    // ...

    mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
        @Override
        public void onRefresh() {
            loadNews();
        }
    });

    return view;
}

private void loadNews() {
    StringRequest request = new StringRequest(Request.Method.GET, URL,
        new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                ArrayList<News> newsList = new JsonConverter<News>().toArrayList(response, News.class);
                NewsArticleAdapter adapter = new NewsArticleAdapter(getActivity(), newsList);
                mRecyclerView.setAdapter(adapter);

                mSwipeRefreshLayout.setRefreshing(false);
            }
        });
    MySingleton.getInstance(getActivity()).addToRequestQueue(request);
}

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问题：您正在刷新它以显示动画，2.5秒后，您只需使用SwiperFreshLayout.setRefreshingfalse禁用动画；但onRefresh内部没有执行任何请求。所以执行请求刷新这个工作！谢谢我不得不把一条新闻放进去；在要在片段中查看的onCreateView内部。但总的来说，这是一个很大的帮助，真的！再次感谢@马修米兰达很乐意帮忙。将loadView代码放在onCreateView中是非常好的。我只是将其分开以避免重复代码，通常您最终会调用相同的代码来最初加载数据并刷新数据。片段不应阻止您这样做。

private static final String NEWS_URL = "http://192.168.0.29/theflare/app/news.php";

private SwipeRefreshLayout mSwipeRefreshLayout;
private RecyclerView mRecyclerView;

@Override
public view onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {

    // ...

    mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
        @Override
        public void onRefresh() {
            loadNews();
        }
    });

    return view;
}

private void loadNews() {
    StringRequest request = new StringRequest(Request.Method.GET, URL,
        new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                ArrayList<News> newsList = new JsonConverter<News>().toArrayList(response, News.class);
                NewsArticleAdapter adapter = new NewsArticleAdapter(getActivity(), newsList);
                mRecyclerView.setAdapter(adapter);

                mSwipeRefreshLayout.setRefreshing(false);
            }
        });
    MySingleton.getInstance(getActivity()).addToRequestQueue(request);
}