public List<Poem> getData() {
if (RANDOM.equals(classfy)) {
return jsonUtil.getRandomPoem();
} else if (AUTHOR.equals(classfy)) {
List<Poem> poems = jsonUtil.getPoemByAuthorName(info, listView.getPage());
if (poems.size() >= 1) {
return poems;
}
return null;
} else if (STYLE.equals(classfy)) {
List<Poem> poems = jsonUtil.getPoemByTag(info, listView.getPage());
if (poems.size() >= 1) {
return poems;
}
return null;
}
// TODO还没有做完，分类没有全部完成
return jsonUtil.getRandomPoem();
}
public class ListPoemFragment extends Fragment {
private JsonUtil jsonUtil = JsonUtil.getInstance();
private List<Poem> poems = new ArrayList<Poem>();
private LoadListView listView;
private PoemListAdapter poemListAdapter = null;
private String classfy; // 分类，表示是从哪里取得数据，包括随机，按诗人姓名，按种类等
private String info; // 附加信息，包括诗人姓名，朝代等
// 分类
public static String RANDOM = "RANDOM"; // 随机
public static String AUTHOR = "AUTHOR"; // 作者姓名
public static String STYLE = "STYLE"; // 风格
public ListPoemFragment() {}
public ListPoemFragment(String classfy) {
this.classfy = classfy;
}
public ListPoemFragment(String classfy, String info) {
this.classfy = classfy;
this.info = info;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
StrictMode.setThreadPolicy(
new StrictMode.ThreadPolicy.Builder()
.detectDiskReads()
.detectDiskWrites()
.detectAll()
.penaltyLog()
.build());
StrictMode.setVmPolicy(
new StrictMode.VmPolicy.Builder()
.detectLeakedSqlLiteObjects()
.detectLeakedClosableObjects()
.penaltyLog()
.penaltyDeath()
.build());
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_loadlist, container, false);
listView = (LoadListView) view.findViewById(R.id.load_listview);
initData();
listView.setOnItemClickListener(new poemItemClickLlistener());
return view;
}
private void initData() {
List<Poem> newpoems = getData();
if (newpoems == null) {
Toast.makeText(getActivity(), "没有数据", Toast.LENGTH_LONG).show();
} else {
poems.addAll(newpoems);
showList(poems);
}
}
public void showList(List<Poem> poems) {
// 第一次加载
if (poemListAdapter == null) {
poemListAdapter = new PoemListAdapter(getActivity(), poems);
listView.setILoadListener(new LoadListener());
listView.setAdapter(poemListAdapter);
} else {
poemListAdapter.onDateChange(poems);
}
}
public class poemItemClickLlistener implements OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Poem poem = (Poem) poemListAdapter.getItem(position);
Intent intent = new Intent(getActivity(), ContentActivity.class);
intent.putExtra("poem", poem);
startActivity(intent);
}
}
public class LoadListener implements ILoadListener {
@Override
public void onLoad() {
Handler handler = new Handler();
handler.postDelayed(
new Runnable() {
@Override
public void run() {
List<Poem> newpoem = getData();
if (newpoem == null) {
Toast.makeText(getActivity(), "没有更多数据", Toast.LENGTH_LONG).show();
listView.loadComplete();
} else {
poems.addAll(getData());
showList(poems);
listView.loadComplete();
}
}
},
1000);
}
}
public List<Poem> getData() {
if (RANDOM.equals(classfy)) {
return jsonUtil.getRandomPoem();
} else if (AUTHOR.equals(classfy)) {
List<Poem> poems = jsonUtil.getPoemByAuthorName(info, listView.getPage());
if (poems.size() >= 1) {
return poems;
}
return null;
} else if (STYLE.equals(classfy)) {
List<Poem> poems = jsonUtil.getPoemByTag(info, listView.getPage());
if (poems.size() >= 1) {
return poems;
}
return null;
}
// TODO还没有做完，分类没有全部完成
return jsonUtil.getRandomPoem();
}
}