CODEWITHSUNDEEP
androidandroid-recyclerviewswiperefreshlayout
Vendetta8247
Vendetta8247

Reputation: 601

SwipeRefreshLayout configuration

I am working on a network project and dynamically update info. I have a few questions about the SwipeRefreshLayout.

  1. After the onRefresh() starts the icon won't stop spinning and will not disappear even when all the data is updated.
  2. When I launch my app there is a white screen (while information is loading). If I try to make the refresh it will work but will load 2 copies of my data. Is there a way to force the onRefresh() method OR to disable it until my data is loaded?
  3. How do I block all actions before the data is loaded?

Here is my code so that everyone understand what I am talking about:

Main Thread:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_news_page);

    final SwipeRefreshLayout mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.refresh);
    mSwipeRefreshLayout.setOnRefreshListener((SwipeRefreshLayout.OnRefreshListener) new SwipeRefreshLayout.OnRefreshListener() {
        @Override
        public void onRefresh() {
            na.eraseList();
            new NewsParser().execute();

        }
    });


    mSwipeRefreshLayout.setColorScheme(R.color.red);

    recList = (RecyclerView) findViewById(R.id.cardList);
    recList.setHasFixedSize(true);


     na = new NewsAdapter();
     recList.setAdapter(na);
    new NewsParser().execute();



    LinearLayoutManager llm = new LinearLayoutManager(this);
    llm.setOrientation(LinearLayoutManager.VERTICAL);
    recList.setLayoutManager(llm);

AsyncTask:

    protected Void doInBackground(Void... params) {
            try {
                doc = Jsoup.connect("http://www.gamedev.net/page/index.html").get();
                Element e = doc.getElementById("featured");
                Elements es = e.getElementsByClass("article_content_inner");



                for (Element el : es) {

                    Element forHeader = el.getElementsByTag("strong").first().getElementsByTag("a").first();

                    String URLforImg = el.getElementsByTag("img").first().attr("src");
                    String forDesc = el.getElementsByClass("article_desc").first().html();
                    forDesc = new String(forDesc.substring(forDesc.indexOf("</a>") + 7,forDesc.length()));
                    na.changeList(new NewCard(forHeader.html(), forDesc, URLforImg, forHeader.attr("href")));
                    runOnUiThread(new Runnable()
                    {
                                      @Override
                                      public void run() {
                                          na.notifyDataSetChanged();
                                      }
                                  }
                    );

                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }

        protected void onPostExecute(Void params) {

        }
    }

Upvotes: 0

Views: 1517

Answers (2)

MineConsulting SRL
MineConsulting SRL

Reputation: 2340

After the onRefresh() starts the icon won't stop spinning and will not disappear even when all the data is updated.

Use SwipeRefreshLayout.setRefreshing(false)

When I launch my app there is a white screen (while information is loading). If I try to make the refresh it will work but will load 2 copies of my data. Is there a way to force the onRefresh() method OR to disable it until my data is loaded?

How do I block all actions before the data is loaded?

SwipeRefreshLayout.setEnabled(false)

Upvotes: 2

domi
domi

Reputation: 978

You must not use a new thread within asynctask. Get rid of that first. Secondly, you should update your UI in your onPostExecute method, that is where you need to call na.notifyDataSetChanged();Also you need to call swipeLayout.setRefreshing(false);when you update/finish with the asynctask for disabling the loading/refreshing animation.

Regarding the white screen - why don't you put a loading spinner before you populate the list? Or populate the list using old data (that you have saved or preset in SharedPreferences ect.)

Upvotes: 0

Related Questions