Fragment 生命周期 全局变量的声明位置

public class Fragment_shouye extends Fragment {

    private List<Zixun_shouye> datas;
    private TopView top;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        top = new TopView(getActivity());//---------------------一定在这儿初始化  接口回调时再去更新ui尽管与主线程不一致也可以
        datas = new ArrayList<Zixun_shouye>();
        NUtils.get(NUtils.TYPE_TXT, Config.FIRST_PAGE_WEBVIEW, new Callback() {
            @Override
            public void response(String url, byte[] bytes) {
                JSONObject obj;
                try {
                    obj = new JSONObject(new String(bytes, "utf-8"));
                    JSONArray array = obj.getJSONArray("data");
                    for (int j = ; j < array.length(); j++) {
                        JSONObject obj1 = array.getJSONObject(j);
                        String type = obj1.getString("type");
                        String picurl = obj1.getString("picurl");
                        String title = obj1.getString("title");
                        String newsurl = obj1.getString("newsurl");
                        Zixun_shouye zixun = new Zixun_shouye();
                        zixun.setNewsurl(newsurl);
                        zixun.setPicurl(picurl);
                        zixun.setTitle(title);
                        zixun.setType(type);
                        System.out.println(zixun);
                        datas.add(zixun);
                    }

                    top.setData(datas);

                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public boolean isCancelled(String url) {
                return false;
            }
        });
        super.onCreate(savedInstanceState);
    }

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

        return top;//防止返回为空不执行
    }

    

遇到一些自定义类作为布局的可以先用一个linearlayout占位 在用ll.addView(v);可以