package com.dodola.flip; import android.app.Activity; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.AdapterView; import com.dodola.flip.dummy.ItemDataAdapter; import com.dodola.flip.dummy.SimpleData; import com.loopj.android.http.AsyncHttpClient; import com.loopj.android.http.JsonHttpResponseHandler; import org.apache.http.Header; import org.json.JSONArray; import org.json.JSONObject; import java.util.ArrayList; import java.util.List; /** * A fragment representing a list of Items. * <p/> * Large screen devices (such as tablets) are supported by replacing the ListView * with a GridView. * <p/> * Activities containing this fragment MUST implement the {@link OnFragmentInteractionListener} * interface. */ public class ListFragment extends Fragment implements AbsListView.OnItemClickListener { private OnFragmentInteractionListener mListener; private AbsListView mListView; private ItemDataAdapter mAdapter; // TODO: Rename and change types of parameters public static ListFragment newInstance() { ListFragment fragment = new ListFragment(); Bundle args = new Bundle(); fragment.setArguments(args); return fragment; } /** * Mandatory empty constructor for the fragment manager to instantiate the * fragment (e.g. upon screen orientation changes). */ public ListFragment() { } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (getArguments() != null) { } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_item_list, container, false); mAdapter = new ItemDataAdapter(getActivity()); mListView = (AbsListView) view.findViewById(android.R.id.list); mListView.setAdapter(mAdapter); // Set OnItemClickListener so we can be notified on item clicks mListView.setOnItemClickListener(this); DetailAnimViewGroup wrapper = new DetailAnimViewGroup(inflater.getContext(), view, 0); loadData(); return wrapper; } @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(); mListener = null; } @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { if (null != mListener) { SimpleData data = (SimpleData) parent.getItemAtPosition(position); mListener.onFragmentInteraction(data, view); } } /** * This interface must be implemented by activities that contain this * fragment to allow an interaction in this fragment to be communicated * to the activity and potentially other fragments contained in that * activity. * <p/> * See the Android Training lesson <a href= * "http://developer.android.com/training/basics/fragments/communicating.html" * >Communicating with Other Fragments</a> for more information. */ public interface OnFragmentInteractionListener { // TODO: Update argument type and name public void onFragmentInteraction(SimpleData data, View view); } private void loadData() { AsyncHttpClient client = new AsyncHttpClient(); client.get(getActivity(), "https://moment.douban.com/api/stream/date/2015-06-09", new JsonHttpResponseHandler() { @Override public void onSuccess(int statusCode, Header[] headers, JSONObject response) { super.onSuccess(statusCode, headers, response); if (response != null) { final JSONArray posts = response.optJSONArray("posts"); int length = posts.length(); List<SimpleData> resultDatas = new ArrayList<SimpleData>(length); for (int i = 0; i < length; i++) { JSONObject obj = posts.optJSONObject(i); SimpleData data = new SimpleData(); data.content = obj.optString("abstract"); data.title = obj.optString("title"); data.url = obj.optString("url"); JSONArray thumbs = obj.optJSONArray("thumbs"); if (thumbs.length() > 0) { JSONObject thumb = thumbs.optJSONObject(0); thumb = thumb.optJSONObject("large"); if (thumb != null) { data.picUrl = thumb.optString("url"); resultDatas.add(data); } } } mAdapter.addAll(resultDatas); } } }); } }