Android ListView长按事件弹出菜单并获取选中的item

2019独角兽企业重金招聘Python工程师标准>>>

看了很多listview的长按事件，但几乎都是只给出弹出菜单的代码，没有给出选中的某个项的代码，我贴个全的吧，免得摸索麻烦

思路就是

listview在父窗口先注册一个长按弹出菜单registerReceiver=》设置一个长按的listener，保存好选中item数据=》onCreateContextMenu添加菜单=》onContextItemSelected菜单响应处理；

就这么简单。

[java] view plain copy print ?

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.Resources;
import android.graphics.Color;
import android.os.Bundle;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.style.ForegroundColorSpan;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnCreateContextMenuListener;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class CommentsListActivity extends Activity
{
private String m_jid = "0";
private ListView m_listView;
private EditText m_ETReply;
private Appdata m_appdata;
private TextView m_TVReply;
private TextView m_TVid;
private LinearLayout m_ReplyArea;
private String m_replycCmmentID = "";
private String m_replyCommentContent = "";
private boolean m_bcomments = false;
private ArrayList m_commentList = new ArrayList();
private Helper.SmartJSONArray m_commentObj = null;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.comments);
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,
R.layout.title);
m_appdata = (Appdata)this.getApplicationContext();
m_listView = (ListView)this.findViewById(R.id.listViewShow);
m_ETReply = (EditText)this.findViewById(R.id.editTextComment);
m_ReplyArea = (LinearLayout)this.findViewById(R.id.ReplyArea);
m_TVReply = (TextView)m_ReplyArea.findViewById(R.id.TVReply);
m_TVid = (TextView)this.findViewById(R.id.TVid);
Button btnBefore = (Button)this.findViewById(R.id.btn_before);
btnBefore.setText(R.string.back);
btnBefore.setVisibility(View.VISIBLE);
Intent intentFrom = this.getIntent();
Bundle bd = intentFrom.getExtras();
this.m_jid = bd.getString("jid");
TextView viewTitle = (TextView)this.findViewById(R.id.app_title);
viewTitle.setText("\"" + Helper.SmartText(bd.getString("title"), 10, true) + "\"的评论");
IntentFilter intentFilter= new IntentFilter();
intentFilter.addAction(Helper.INTENAL_ACTION_GETPLANCOMMENTS);
registerReceiver(br,intentFilter);
Intent intent= new Intent(Helper.INTENAL_ACTION_GETPLANCOMMENTS);
sendBroadcast(intent);
onLongClickListView();
}
@Override
public void onDestroy()
{
super.onDestroy();
unregisterReceiver(br);
}
class SortByTime implements Comparator {
public int compare(JSONObject o1, JSONObject o2) {
try {
if (Helper.getDiffDays(o1.getString("time"), o2.getString("time")) < 0)
return 1;
} catch (JSONException e) {
e.printStackTrace();
}
return 0;
}
}
public void comment(View v)
{
IntentFilter intentFilter= new IntentFilter();
intentFilter.addAction(Helper.INTENAL_ACTION_GETPLANDOCOMMENT);
registerReceiver(br,intentFilter);
Intent intent= new Intent(Helper.INTENAL_ACTION_GETPLANDOCOMMENT);
sendBroadcast(intent);
}
public void doBefore(View v)
{
CommentsListActivity.this.finish();
}
void onLongClickListView()
{
m_listView.setOnItemLongClickListener(itemLongClick);
registerForContextMenu(m_listView);
}
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
menu.add(0,0,0,"回复评论");
}
@Override
public boolean onContextItemSelected(MenuItem aItem) {
ContextMenuInfo menuInfo = (ContextMenuInfo) aItem.getMenuInfo();
Toast ta;
ta = Toast.makeText(CommentsListActivity.this, "onContextItemSelected", Toast.LENGTH_LONG);
ta.show();
/* Switch on the ID of the item, to get what the user selected. */
switch (aItem.getItemId()) {
case 0:
if(!CommentsListActivity.this.m_replycCmmentID.equals(""))
{
CommentsListActivity.this.m_ReplyArea.setVisibility(View.VISIBLE);
CommentsListActivity.this.m_TVReply.setText(this.m_replyCommentContent);
CommentsListActivity.this.m_TVid.setText(m_replycCmmentID);
}
return true;
}
return false;
}
void initData()
{
int diarycount = this.m_commentObj.getLength();
if( diarycount >= 1)
{
for (int i = 0; i < diarycount; i++)
{
this.m_commentList.add(this.m_commentObj.getObj(i));
}
Collections.sort(this.m_commentList, new SortByTime());
}
CommentItemAdapter dia = new CommentItemAdapter(this);
m_listView.setAdapter(dia);
}
void addCommentItem(JSONObject objCommentItem)
{
try {
objCommentItem.put("from_nick", objCommentItem.getString("user_name"));
} catch (JSONException e) {
e.printStackTrace();
}
m_ETReply.setText("");
this.m_commentList.add(0, objCommentItem);
CommentItemAdapter adp = (CommentItemAdapter)m_listView.getAdapter();
adp.notifyDataSetChanged();
m_listView.setFocusable(true);
}
public class CommentData
{
public TextView TVname;
public TextView TVtime;
public TextView TVcontent;
public TextView TVcid;
}
public class CommentItemAdapter extends BaseAdapter
{
private LayoutInflater mInflater;
public CommentItemAdapter(Context context)
{
this.mInflater = LayoutInflater.from(context);
}
public View getConvertView(int i)
{
View view = mInflater.inflate(getItemViewType(i), null);
CommentData item = new CommentData();
item.TVname = (TextView)view.findViewById(R.id.TVname);
item.TVtime = (TextView)view.findViewById(R.id.TVtime);
item.TVcontent = (TextView)view.findViewById(R.id.TVcontent);
item.TVcid = (TextView)view.findViewById(R.id.TVcid);
view.setTag(item);
return view;
}
@Override
public int getCount() {
return CommentsListActivity.this.m_commentList.size();
}
@Override
public int getItemViewType(int position) {
return R.layout.listview_item_comment;
}
@Override
public Map getItem(int arg0) {
return null;
}
@Override
public long getItemId(int arg0) {
return arg0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = null;
if(convertView == null)
{
view = getConvertView(position);
}
else
{
view = convertView;
}
CommentData item = (CommentData)view.getTag();
try {
JSONObject obj = CommentsListActivity.this.m_commentList.get(position);
String strTime = obj.getString("time");
item.TVtime.setText(strTime);
item.TVcontent.setText(Helper.outToTextArea(obj.getString("content")));
String str = obj.getString("from_nick");
item.TVname.setText(str);
item.TVcid.setText(obj.getString("id"));
} catch (JSONException e) {
e.printStackTrace();
}
return view;
}
}
private BroadcastReceiver br = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
m_bcomments = action.equals(Helper.INTENAL_ACTION_GETPLANCOMMENTS);
boolean cdocomment = action.equals(Helper.INTENAL_ACTION_GETPLANDOCOMMENT);
if( m_bcomments || cdocomment){
final ProgressDialog progressDialog = ProgressDialog.show(CommentsListActivity.this, null, "亲，稍等片刻哦...", true, false);
progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
HttpUtilService loginService = new HttpUtilService(CommentsListActivity.this.m_appdata.getToken());
Map params = new HashMap() ;
if(m_bcomments)
{
params.put("jid", CommentsListActivity.this.m_jid);
params.put("page", "1");
}
else
{
params.put("id", CommentsListActivity.this.m_jid);
params.put("title", "null");
if(CommentsListActivity.this.m_ReplyArea.getVisibility() == View.VISIBLE)
{
String strReply = m_TVReply.getText().toString() + ":" + m_ETReply.getText().toString();
params.put("reply", CommentsListActivity.this.m_TVid.getText().toString());
params.put("content", Helper.SmartText(Helper.outToHTML(strReply), 500, false));
}
else
{
params.put("content", Helper.SmartText(Helper.outToHTML(m_ETReply.getText().toString()), 500, false));
}
}
loginService.AsynPost(new HttpUtilService.CallbackListener() {
@Override
public void callback(String result) {
progressDialog.dismiss();
try {
JSONObject obj = new JSONObject(result);
int code = obj.getInt("code");
if( code == 1)
{
Toast ta;
if(CommentsListActivity.this.m_bcomments)
{
CommentsListActivity.this.m_commentObj = new Helper.SmartJSONArray(obj.getJSONArray("data"));
CommentsListActivity.this.initData();
ta = Toast.makeText(CommentsListActivity.this, "获取成功", Toast.LENGTH_LONG);
}
else
{
if(!obj.getString("data").equals("false"))
{
CommentsListActivity.this.addCommentItem(obj.getJSONObject("data"));
}
ta = Toast.makeText(CommentsListActivity.this, "评论成功", Toast.LENGTH_LONG);
}
ta.show();
}
else
{
Toast ta;
if(CommentsListActivity.this.m_bcomments)
ta = Toast.makeText(CommentsListActivity.this, "获取失败："+code, Toast.LENGTH_LONG);
else
ta = Toast.makeText(CommentsListActivity.this, "评论失败："+code, Toast.LENGTH_LONG);
ta.show();
}
} catch (JSONException e) {
e.printStackTrace();
Toast toast = Toast.makeText(CommentsListActivity.this, result, Toast.LENGTH_LONG );
toast.show();
}
}
}, CommentsListActivity.this.m_bcomments ? "/api/plan/get_comment" : "/api/plan/comment", params);
}
}
};
OnItemLongClickListener itemLongClick = new OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView arg0, View view,
final int arg2, long arg3) {
TextView cid = (TextView)view.findViewById(R.id.TVcid);
CommentsListActivity.this.m_replycCmmentID = cid.getText().toString();
TextView reply = (TextView)view.findViewById(R.id.TVcontent);
TextView name = (TextView)view.findViewById(R.id.TVname);
CommentsListActivity.this.m_replyCommentContent = "回复@" + name.getText() + " \"" + Helper.SmartText(reply.getText().toString(), 100, true) + "\"";
return false;//let the window create menu
}
};

Android ListView长按事件弹出菜单并获取选中的item

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