package lee.devis.joker; import android.app.Activity; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import com.nostra13.universalimageloader.core.ImageLoader; import java.util.ArrayList; import java.util.List; import lee.devis.joker.Entity.Joke; import lee.devis.joker.Entity.Result; import lee.devis.joker.HttpMethod.AsynTaskThread; import lee.devis.joker.adapter.JokeListViewAdapter; import lee.devis.joker.zrcrefreshview.SimpleFooter; import lee.devis.joker.zrcrefreshview.SimpleHeader; import lee.devis.joker.zrcrefreshview.ZrcListView; import static lee.devis.joker.zrcrefreshview.ZrcListView.OnStartListener; public class HotFragment extends BaseFragment { private OnFragmentInteractionListener mListener; private ZrcListView listView; private Handler handler; private JokeListViewAdapter adapter; private List<Joke> jokes; private int currentPage = 1; private ImageLoader imageLoader; public HotFragment() { // Required empty public constructor } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { Log.i("TTT", "Fragment onCreateView"); // Inflate the layout for this fragment View view = inflater.inflate(R.layout.fragment_newest, container, false); listView = (ZrcListView) view.findViewById(R.id.zListView); handler = new Handler(); imageLoader = ImageLoader.getInstance(); // 设置默认偏移量,主要用于实现透明标题栏功能。 // float density = getResources().getDisplayMetrics().density; // listView.setFirstTopOffset((int) (50 * density)); // 设置下拉刷新的样式 SimpleHeader header = new SimpleHeader(getActivity()); header.setTextColor(0xff0066aa); header.setCircleColor(0xff33bbee); listView.setHeadable(header); // 设置加载更多的样式 SimpleFooter footer = new SimpleFooter(getActivity()); footer.setCircleColor(0xff33bbee); listView.setFootable(footer); // 设置列表项出现动画 listView.setItemAnimForTopIn(R.anim.topitem_in); listView.setItemAnimForBottomIn(R.anim.bottomitem_in); // 下拉刷新事件回调 listView.setOnRefreshStartListener(new OnStartListener() { @Override public void onStart() { refresh(); } }); // 加载更多事件回调 listView.setOnLoadMoreStartListener(new OnStartListener() { @Override public void onStart() { loadMore(); } }); // listView.setOnScrollListener(new PauseOnScrollListener(imageLoader, // true, true)); // Bug,当ZListView为没有数据时,无法下位刷新。建议当无数据的加载使用loading界面、无数据界面。 jokes = new ArrayList<Joke>(); Joke joke = new Joke(); jokes.add(joke); adapter = new JokeListViewAdapter(getActivity(), jokes); listView.setAdapter(adapter); listView.refresh(); // 主动下拉刷新 return view; } private Handler myHandler = new Handler() { @Override public void handleMessage(Message msg) { super.handleMessage(msg); switch (msg.what) { case R.id.tag_get_hot: Log.i("TTT", "myHandler tag_get_hot"); Result result = (Result) msg.obj; if (result != null) { List<Joke> list = (List<Joke>) result.getItems(); if (list != null && list.size() > 0) { if (currentPage == 1) { jokes.clear(); } jokes.addAll(list); adapter.notifyDataSetChanged(); listView.setRefreshSuccess("刚刚更新"); // 通知加载成功 listView.startLoadMore(); // 开启LoadingMore功能 } else { Log.e("TTT", "error myHandler1"); jokes.add(new Joke()); adapter.notifyDataSetChanged(); listView.setRefreshFail("没有更新"); } } else { Log.e("TTT", "error myHandler2"); jokes.add(new Joke()); adapter.notifyDataSetChanged(); listView.setRefreshFail("更新失败"); } break; default: break; } } }; @Override public void onAttach(Activity activity) { super.onAttach(activity); try { mListener = (OnFragmentInteractionListener) activity; } catch (ClassCastException e) { throw new ClassCastException(activity.toString() + " must implement OnFragmentInteractionListener"); } } @Override public void onDetach() { super.onDetach(); if (mListener != null) mListener = null; if (handler != null) handler.removeCallbacksAndMessages(handler); } @Override public void onDestroyView() { if (jokes != null) { jokes.clear(); if (adapter != null && listView != null) { adapter.notifyDataSetChanged(); listView = null; adapter = null; } } if (myHandler != null) { myHandler.removeCallbacksAndMessages(myHandler); myHandler = null; } if (handler != null) { handler.removeCallbacksAndMessages(handler); handler = null; } super.onDestroyView(); } public interface OnFragmentInteractionListener { // TODO: Update argument type and name public void onFragmentInteraction(Uri uri); } private void refresh() { jokes.clear(); currentPage = 1; new AsynTaskThread(myHandler, R.id.tag_get_hot, currentPage).execute(); } private void loadMore() { new AsynTaskThread(myHandler, R.id.tag_get_hot, ++currentPage).execute(); } }