在infiniteContainer中拉出刷新问题

Question

Pull to refresh给出了不同的数据（不是从初始数据开始），因为以下代码中的pageNumber增加了。当在infiniteContainer中调用pull to refresh时，如何将pageNumber int的值设置为零？

InfiniteContainer ic = new InfiniteContainer() {
    @Override
    public Component[] fetchComponents(int index, int amount) {
        ArrayList<Map<String, Object>> data = fetchHerbData(res);
        - - - - - - - - - - - - - - - - - - - - 
        - - - - - - - - - - - - - - - - - - - - 
    }
};

int pageNumber = 0;

ArrayList<Map<String, Object>> fetchHerbData(Resources res) {
    try {
    ConnectionRequest r = new ConnectionRequest();
        r.setPost(false);
        r.setUrl("http://api.nestoria.co.uk/api");
        r.addArgument("pretty", "0");
        r.addArgument("action", "search_listings");
        r.addArgument("encoding", "json");
        r.addArgument("listing_type", "buy");
        r.addArgument("page", "" + pageNumber);
        pageNumber++;
        r.addArgument("country", "uk");
        r.addArgument("place_name", text);
        NetworkManager.getInstance().addToQueueAndWait(r);
        Map<String,Object> result = new JSONParser().parseJSON(new InputStreamReader(new ByteArrayInputStream(r.getResponseData()), "UTF-8"));
        Map<String, Object> response = (Map<String, Object>)result.get("response");
        return (java.util.List<Map<String, Object>>)response.get("listings");
    } catch(Exception err) {
        Log.e(err);
        return null;
    }
}

Answer 1

试试这个：

public Component[] fetchComponents(int index, int amount) {
    if(index == 0) pageNumber = 0;
    //... rest of code
}