Android ListView長按事件彈出菜單並獲取選中的item

看了不少listview的長按事件，但幾乎都是隻給出彈出菜單的代碼，沒有給出選中的某個項的代碼，我貼個全的吧，省得摸索麻煩

思路就是

listview在父窗口先註冊一個長按彈出菜單registerReceiver=》設置一個長按的listener，保存好選中item數據=》onCreateContextMenu添加菜單=》onContextItemSelected菜單響應處理；

就這麼簡單。

[java] view plain copy print ?

3. import java.util.ArrayList;
4. import java.util.Collections;
5. import java.util.Comparator;
6. import java.util.HashMap;
7. import java.util.Map;
9. import org.json.JSONException;
10. import org.json.JSONObject;
12. import android.app.Activity;
13. import android.app.ProgressDialog;
14. import android.content.BroadcastReceiver;
15. import android.content.Context;
16. import android.content.Intent;
17. import android.content.IntentFilter;
18. import android.content.res.Resources;
19. import android.graphics.Color;
20. import android.os.Bundle;
21. import android.text.Spannable;
22. import android.text.SpannableStringBuilder;
23. import android.text.style.ForegroundColorSpan;
24. import android.util.Log;
25. import android.view.ContextMenu;
26. import android.view.ContextMenu.ContextMenuInfo;
27. import android.view.LayoutInflater;
28. import android.view.MenuItem;
29. import android.view.View;
30. import android.view.View.OnClickListener;
31. import android.view.View.OnCreateContextMenuListener;
32. import android.view.ViewGroup;
33. import android.view.Window;
34. import android.widget.AdapterView;
35. import android.widget.AdapterView.OnItemClickListener;
36. import android.widget.AdapterView.OnItemLongClickListener;
37. import android.widget.BaseAdapter;
38. import android.widget.Button;
39. import android.widget.EditText;
40. import android.widget.LinearLayout;
41. import android.widget.ListView;
42. import android.widget.TextView;
43. import android.widget.Toast;
45. public class CommentsListActivity extends Activity
46. {
48. private String m_jid = "0";
49. private ListView m_listView;
50. private EditText m_ETReply;
51. private Appdata m_appdata;
52. private TextView m_TVReply;
53. private TextView m_TVid;
54. private LinearLayout m_ReplyArea;
55. private String m_replycCmmentID = "";
56. private String m_replyCommentContent = "";
57. private boolean m_bcomments = false;
58. private ArrayList<JSONObject> m_commentList = new ArrayList<JSONObject>();
59. private Helper.SmartJSONArray m_commentObj = null;
60. public void onCreate(Bundle savedInstanceState)
61. {
62. super.onCreate(savedInstanceState);
63. requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
64. setContentView(R.layout.comments);
65. getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,
66. R.layout.title);
67. m_appdata = (Appdata)this.getApplicationContext();
68. m_listView = (ListView)this.findViewById(R.id.listViewShow);
69. m_ETReply = (EditText)this.findViewById(R.id.editTextComment);
70. m_ReplyArea = (LinearLayout)this.findViewById(R.id.ReplyArea);
71. m_TVReply = (TextView)m_ReplyArea.findViewById(R.id.TVReply);
72. m_TVid = (TextView)this.findViewById(R.id.TVid);
73. Button btnBefore = (Button)this.findViewById(R.id.btn_before);
74. btnBefore.setText(R.string.back);
75. btnBefore.setVisibility(View.VISIBLE);
76. Intent intentFrom = this.getIntent();
77. Bundle bd = intentFrom.getExtras();
78. this.m_jid = bd.getString("jid");
79. TextView viewTitle = (TextView)this.findViewById(R.id.app_title);
80. viewTitle.setText("\"" + Helper.SmartText(bd.getString("title"), 10, true) + "\"的評論");
81. IntentFilter intentFilter= new IntentFilter();
82. intentFilter.addAction(Helper.INTENAL_ACTION_GETPLANCOMMENTS);
83. registerReceiver(br,intentFilter);
84. Intent intent= new Intent(Helper.INTENAL_ACTION_GETPLANCOMMENTS);
85. sendBroadcast(intent);
86. onLongClickListView();
87. }
89. @Override
90. public void onDestroy()
91. {
92. super.onDestroy();
93. unregisterReceiver(br);
94. }
96. class SortByTime implements Comparator<JSONObject> {
97. public int compare(JSONObject o1, JSONObject o2) {
98. try {
99. if (Helper.getDiffDays(o1.getString("time"), o2.getString("time")) < 0)
100. return 1;
101. } catch (JSONException e) {
102. e.printStackTrace();
103. }
104. return 0;
105. }
106. }
108. public void comment(View v)
109. {
110. IntentFilter intentFilter= new IntentFilter();
111. intentFilter.addAction(Helper.INTENAL_ACTION_GETPLANDOCOMMENT);
112. registerReceiver(br,intentFilter);
113. Intent intent= new Intent(Helper.INTENAL_ACTION_GETPLANDOCOMMENT);
114. sendBroadcast(intent);
115. }
117. public void doBefore(View v)
118. {
119. CommentsListActivity.this.finish();
120. }
122. void onLongClickListView()
123. {
124. m_listView.setOnItemLongClickListener(itemLongClick);
125. registerForContextMenu(m_listView);
126. }
127. public void onCreateContextMenu(ContextMenu menu, View v,
128. ContextMenuInfo menuInfo) {
129. super.onCreateContextMenu(menu, v, menuInfo);
130. menu.add(0,0,0,"回覆評論");
131. }
133. @Override
134. public boolean onContextItemSelected(MenuItem aItem) {
135. ContextMenuInfo menuInfo = (ContextMenuInfo) aItem.getMenuInfo();
136. Toast ta;
137. ta = Toast.makeText(CommentsListActivity.this, "onContextItemSelected", Toast.LENGTH_LONG);
138. ta.show();
139. /* Switch on the ID of the item, to get what the user selected. */
140. switch (aItem.getItemId()) {
141. case 0:
143. if(!CommentsListActivity.this.m_replycCmmentID.equals(""))
144. {
145. CommentsListActivity.this.m_ReplyArea.setVisibility(View.VISIBLE);
146. CommentsListActivity.this.m_TVReply.setText(this.m_replyCommentContent);
147. CommentsListActivity.this.m_TVid.setText(m_replycCmmentID);
148. }
149. return true;
150. }
151. return false;
152. }
154. void initData()
155. {
156. int diarycount = this.m_commentObj.getLength();
157. if( diarycount >= 1)
158. {
159. for (int i = 0; i < diarycount; i++)
160. {
161. this.m_commentList.add(this.m_commentObj.getObj(i));
162. }
163. Collections.sort(this.m_commentList, new SortByTime());
164. }
166. CommentItemAdapter dia = new CommentItemAdapter(this);
167. m_listView.setAdapter(dia);
168. }
170. void addCommentItem(JSONObject objCommentItem)
171. {
172. try {
173. objCommentItem.put("from_nick", objCommentItem.getString("user_name"));
174. } catch (JSONException e) {
175. e.printStackTrace();
176. }
177. m_ETReply.setText("");
178. this.m_commentList.add(0, objCommentItem);
179. CommentItemAdapter adp = (CommentItemAdapter)m_listView.getAdapter();
180. adp.notifyDataSetChanged();
181. m_listView.setFocusable(true);
182. }
184. public class CommentData
185. {
186. public TextView TVname;
187. public TextView TVtime;
188. public TextView TVcontent;
189. public TextView TVcid;
190. }
192. public class CommentItemAdapter extends BaseAdapter
193. {
194. private LayoutInflater mInflater;
195. public CommentItemAdapter(Context context)
196. {
197. this.mInflater = LayoutInflater.from(context);
199. }
200. public View getConvertView(int i)
201. {
202. View view = mInflater.inflate(getItemViewType(i), null);
203. CommentData item = new CommentData();
204. item.TVname = (TextView)view.findViewById(R.id.TVname);
205. item.TVtime = (TextView)view.findViewById(R.id.TVtime);
206. item.TVcontent = (TextView)view.findViewById(R.id.TVcontent);
207. item.TVcid = (TextView)view.findViewById(R.id.TVcid);
208. view.setTag(item);
209. return view;
210. }
212. @Override
213. public int getCount() {
214. return CommentsListActivity.this.m_commentList.size();
215. }
217. @Override
218. public int getItemViewType(int position) {
219. return R.layout.listview_item_comment;
220. }
222. @Override
223. public Map<String,Object> getItem(int arg0) {
224. return null;
225. }
227. @Override
228. public long getItemId(int arg0) {
229. return arg0;
230. }
232. @Override
233. public View getView(int position, View convertView, ViewGroup parent) {
234. View view = null;
235. if(convertView == null)
236. {
237. view = getConvertView(position);
238. }
239. else
240. {
241. view = convertView;
242. }
243. CommentData item = (CommentData)view.getTag();
244. try {
245. JSONObject obj = CommentsListActivity.this.m_commentList.get(position);
246. String strTime = obj.getString("time");
247. item.TVtime.setText(strTime);
248. item.TVcontent.setText(Helper.outToTextArea(obj.getString("content")));
249. String str = obj.getString("from_nick");
250. item.TVname.setText(str);
251. item.TVcid.setText(obj.getString("id"));
252. } catch (JSONException e) {
253. e.printStackTrace();
254. }
255. return view;
256. }
257. }
259. private BroadcastReceiver br = new BroadcastReceiver() {
260. @Override
261. public void onReceive(Context context, Intent intent) {
262. String action = intent.getAction();
263. m_bcomments = action.equals(Helper.INTENAL_ACTION_GETPLANCOMMENTS);
264. boolean cdocomment = action.equals(Helper.INTENAL_ACTION_GETPLANDOCOMMENT);
265. if( m_bcomments || cdocomment){
266. final ProgressDialog progressDialog = ProgressDialog.show(CommentsListActivity.this, null, "親，稍等片刻哦...", true, false);
267. progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
268. HttpUtilService loginService = new HttpUtilService(CommentsListActivity.this.m_appdata.getToken());
269. Map<String, String> params = new HashMap<String, String>() ;
270. if(m_bcomments)
271. {
272. params.put("jid", CommentsListActivity.this.m_jid);
273. params.put("page", "1");
274. }
275. else
276. {
277. params.put("id", CommentsListActivity.this.m_jid);
278. params.put("title", "null");
279. if(CommentsListActivity.this.m_ReplyArea.getVisibility() == View.VISIBLE)
280. {
281. String strReply = m_TVReply.getText().toString() + ":" + m_ETReply.getText().toString();
282. params.put("reply", CommentsListActivity.this.m_TVid.getText().toString());
283. params.put("content", Helper.SmartText(Helper.outToHTML(strReply), 500, false));
284. }
285. else
286. {
287. params.put("content", Helper.SmartText(Helper.outToHTML(m_ETReply.getText().toString()), 500, false));
288. }
290. }
292. loginService.AsynPost(new HttpUtilService.CallbackListener() {
293. @Override
294. public void callback(String result) {
295. progressDialog.dismiss();
296. try {
297. JSONObject obj = new JSONObject(result);
298. int code = obj.getInt("code");
299. if( code == 1)
300. {
301. Toast ta;
302. if(CommentsListActivity.this.m_bcomments)
303. {
304. CommentsListActivity.this.m_commentObj = new Helper.SmartJSONArray(obj.getJSONArray("data"));
305. CommentsListActivity.this.initData();
306. ta = Toast.makeText(CommentsListActivity.this, "獲取成功", Toast.LENGTH_LONG);
307. }
308. else
309. {
310. if(!obj.getString("data").equals("false"))
311. {
312. CommentsListActivity.this.addCommentItem(obj.getJSONObject("data"));
313. }
314. ta = Toast.makeText(CommentsListActivity.this, "評論成功", Toast.LENGTH_LONG);
315. }
316. ta.show();
317. }
318. else
319. {
320. Toast ta;
321. if(CommentsListActivity.this.m_bcomments)
322. ta = Toast.makeText(CommentsListActivity.this, "獲取失敗："+code, Toast.LENGTH_LONG);
323. else
324. ta = Toast.makeText(CommentsListActivity.this, "評論失敗："+code, Toast.LENGTH_LONG);
325. ta.show();
326. }
327. } catch (JSONException e) {
328. e.printStackTrace();
329. Toast toast = Toast.makeText(CommentsListActivity.this, result, Toast.LENGTH_LONG );
330. toast.show();
331. }
332. }
333. }, CommentsListActivity.this.m_bcomments ? "/api/plan/get_comment" : "/api/plan/comment", params);
334. }
336. }
337. };
339. OnItemLongClickListener itemLongClick = new OnItemLongClickListener() {
341. @Override
342. public boolean onItemLongClick(AdapterView<?> arg0, View view,
343. final int arg2, long arg3) {
344. TextView cid = (TextView)view.findViewById(R.id.TVcid);
345. CommentsListActivity.this.m_replycCmmentID = cid.getText().toString();
346. TextView reply = (TextView)view.findViewById(R.id.TVcontent);
347. TextView name = (TextView)view.findViewById(R.id.TVname);
348. CommentsListActivity.this.m_replyCommentContent = "回覆@" + name.getText() + " \"" + Helper.SmartText(reply.getText().toString(), 100, true) + "\"";
349. return false;//let the window create menu
350. }
351. };