1. public class BaseListFragment extends ListFragment {
2.     public Map<String, String> map;
3.     public String tag = this.getClass().getSimpleName(); // tag 用于测试log用
4.     public Context context; // 存储上下文对象
5.     public Activity activity; // 存储上下文对象
7.     @Override
8.     public void onCreate(Bundle savedInstanceState) {
9.         super.onCreate(savedInstanceState);
10.         context = getActivity();
11.         activity = getActivity();
12.     }
13. }

1. /**
2.  * 新闻分类页面
3.  * @author chen
4.  * @date 2012-12-18 下午5:48:02
5.  */
6. public class NewsFragment extends BaseListFragment {
7.     /** 请求url */
8.     private String url;
9.     /** ListView */
10.     private PullListView mListView;
11. //  /** 分页 */
12. //  private Page page = new Page();
13.     /** 商铺适配器 */
14.     private Adapter mAdapter = new Adapter(activity);;
15.     /** 集合数据 */
16.     public ArrayList<News> mListData;
17.     /** 是否重新加载 */
18.     private boolean isClear;
20.     private LayoutInflater mInflater;
21.     /** 新闻详细页面 url */
22.     private String detailUrl = C.http.http_news_detail;
24.     public NewsFragment(){}
25.     public NewsFragment(Context context, String url) {
26.         this.context = context;
27.         this.url = url;
28.         mListData = null;
29.     }
31.     @Override
32.     public void onCreate(Bundle savedInstanceState) {
33.         super.onCreate(savedInstanceState);
34.         Log.i(tag, ”onCreate”);
35.     }
37.     // 加载多次
38.     public void onActivityCreated(Bundle savedInstanceState) {
39.         super.onActivityCreated(savedInstanceState);
40.         Log.i(tag, ”onActivityCreated”);
41.         mListView = (PullListView) getListView();//(ListView) activity.findViewById(android.R.id.list);
42.         if(mListData != null && mListData.size() > 0) {
43.             return;
44.         }
46.         mListData = new ArrayList<News>();
47.         setListAdapter(mAdapter);
48.         mListView.onRefreshComplete();
49.         mListView.setonRefreshListener(new OnRefreshListener() {
50.             public void onRefresh() {
51.                 isClear = true;
52.                 // 初始化数据
53.                 AnsynHttpRequest.requestByGet(context, callbackData, R.string.http_news, url, true, true, true);
54.             }
55.         });
56.         // 初始化数据
57.         AnsynHttpRequest.requestByGet(context, callbackData, R.string.http_news, url, true, true, false);
58.     }
60.     // 加载多次
61.     @Override
62.     public View onCreateView(LayoutInflater inflater, ViewGroup container,
63.             Bundle savedInstanceState) {
64.         super.onCreateView(inflater, container, savedInstanceState);
65.         View view = inflater.inflate(R.layout.fragment_news_or_hotline, container, false);
66.         mInflater = inflater;
67.         Log.i(tag, ”onCreateView”);
68.         return view;
69.     }
70.     @Override
71.     public void onStart() {
72.         Log.i(tag, ”onStart”);
73.         super.onStart();
74.     }
75.     @Override
76.     public void onStop() {
77.         super.onStop();
78.         Log.i(tag, ”onStop”);
79.     }
80.     @Override
81.     public void onDestroy() {
82.         super.onDestroy();
83.         Log.i(tag, ”onDestroy”);
84.     }
86.     /**
87.      * 异步回调回来并处理数据
88.      */
89.     private ObserverCallBack callbackData = new ObserverCallBack(){
90.         public void back(String data, int url) {
91.             Message msg = new Message();
92.             switch (url) {
93.             case R.string.http_news: // 解析主题信息数据
94.                 msg = new Message();
95.                 if(data == null) {
96.                     msg.what = 2;
97.                     mHandler.sendMessage(msg);
98.                     return;
99.                 }
100.                 try {
101.                     News news = new News();
102.                     ArrayList<News> dataInfo = news.getListInfo(data);
103.                     if(isClear) {
104.                         if(dataInfo != null && dataInfo.size()>0) mListData.clear();
105.                         isClear = false;
106.                     }
108.                     if(mListData != null && mListData.size() > 0)
109.                         msg.what = 1;
110.                     else
111.                         msg.what = 0;
112.                     if(dataInfo == null || dataInfo.size() == 0){
113.                         if( mListData != null && mListData.size() > 0){
114.                             msg = new Message();
115.                             msg.what = 2;
116.                             mHandler.sendMessage(msg);
117.                             return;
118.                         }
119.                     } else {
120.                         mListData.addAll(dataInfo);
121.                     }
122.                     mHandler.sendMessage(msg);
123.                 } catch (Exception e) {
124.                     e.printStackTrace();
125.                 }
127.                 break;
128.             case R.string.http_news_detail:
129.                 msg = new Message();
130.                 if(data == null) {
131.                     msg.what = 2;
132.                     mHandler.sendMessage(msg);
133.                     return;
134.                 }
135.                 try {
136.                     NewsDetail newsDetail = new NewsDetail();
137.                     newsDetail = newsDetail.getInfo(data, detailUrl);
138.                     msg.what = 3;
139.                     msg.obj = newsDetail;
140.                     if(newsDetail.content == null || newsDetail.content.length() == 0){
141.                         msg = new Message();
142.                         msg.what = 2;
143.                         mHandler.sendMessage(msg);
144.                         return;
145.                     }
146.                     mHandler.sendMessage(msg);
147.                 } catch (Exception e) {
148.                     msg = new Message();
149.                     msg.what = 2;
150.                     mHandler.sendMessage(msg);
151.                 }
152.                 break;
153.             default:
154.                 break;
155.             }
156.         };
157.     };
159.     private Handler mHandler = new Handler(){
160.         @Override
161.         public void handleMessage(Message msg) {
162.             super.handleMessage(msg);
163.             switch (msg.what) {
164.             case 0:
165.                 mAdapter.notifyDataSetChanged();
166.                 mListView.onRefreshComplete();
167. //              if(mListData.size() == 0){
168. ////                    Toast.makeText(context, R.string.dialog_title_nowData, Toast.LENGTH_LONG).show();
169. //                    mListView.setVisibility(View.GONE);
170. //              } else mListView.setVisibility(View.VISIBLE);
171.                 break;
172.             case 1:
173.                 mAdapter.notifyDataSetChanged();
174. //              if(mListData.size() == 0){
175. ////                    Toast.makeText(context, R.string.dialog_title_nowData, Toast.LENGTH_LONG).show();
176. //                    mListView.setVisibility(View.GONE);
177. //              }else mListView.setVisibility(View.VISIBLE);
178.                 break;
179.             case 2:
180.                 Toast.makeText(context, R.string.no_data, Toast.LENGTH_LONG).show();
181.                 break;
182.             case 3:
183.                 NewsDetail newsDetail = (NewsDetail) msg.obj;
184.                 Intent intent = new Intent(context, NewsDetailActivity.class);
185.                 intent.putExtra(“content”, newsDetail.content);
186.                 intent.putExtra(“hostUrl”, newsDetail.hostUrl);
187.                 startActivity(intent);
188.                 break;
189.             default:
190.                 break;
191.             }
192.         }
193.     };
195.     public final class ViewHolder {
196.         public TextView title;
197.         public TextView time;
198.     }
200.     // 添加列表内容
201.     public class Adapter extends BaseAdapter {
202.         public Adapter(){}
203.         @Override
204.         public boolean areAllItemsEnabled() {
205.             return super.areAllItemsEnabled();
206.         }
208.         public Adapter(Context context) {
209.         }
210.         @Override
211.         public int getCount() {
212.             return mListData.size();
213.         }
214.         @Override
215.         public Object getItem(int position) {
216.             return null;
217.         }
219.         @Override
220.         public long getItemId(int position) {
221.             return position;
222.         }
224.         @Override
225.         public View getView(final int position, View convertView,
226.                 ViewGroup parent) {
227.             final News news = mListData.get(position);
228.             ViewHolder holder = null;
229.             if (convertView == null) {
230.                 holder = new ViewHolder();
231.                 convertView = mInflater.inflate(R.layout.list_item_mian, null);
232.                 holder.title = (TextView) convertView.findViewById(R.id.list_main_txt_title);
233.                 holder.time = (TextView) convertView.findViewById(R.id.list_main_txt_time);
234.                 convertView.setTag(holder);
235.             } else {
236.                 holder = (ViewHolder) convertView.getTag();
237.             }
239.             // 进行数据设置
240.             holder.title.setText(news.title);
241.             holder.time.setText(news.time);
242.             convertView.setOnClickListener(new OnClickListener() {
243.                 @Override
244.                 public void onClick(View v) { // 加载详细新闻
245.                     detailUrl = mListData.get(position).childUrl;
246.                     AnsynHttpRequest.requestByGet(context, callbackData, R.string.http_news_detail, detailUrl, true, true, false);
247.                 }
248.             });
249.             return convertView;
250.         }
251.     }
252. }

本文链接地址: fragment、ListFragment使用ListView及自定义Listview等初始化操作http://www.hongyanliren.com/2014m12/25085.html

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