如果可扩展列表视图android中的孩子为空，如何单击组
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【中文标题】如果可扩展列表视图android中的孩子为空，如何单击组【英文标题】：How to Click on group if child is empty in expandable listview android 【发布时间】：2015-05-31 08:15:10 【问题描述】：我在展开式列表视图中遇到问题。实际上，组和孩子的详细信息来自服务器。有些组不包含任何子元素。那么我们如何使该组可点击以及点击时移动到活动。当有组的孩子时它工作正常，当点击那个孩子时，它会移动到一个活动。当组中没有子元素时会出现问题。 任何帮助都深表感谢。提前谢谢...这是活动课
public class NewsTabActivity extends Activity
public static String Id, LOGO, WEB_SERV, SUB_CAT;
ImageView image;
ImageLoader imgloader;
String URL_MAIN_CAT, nDrawerSubCat, URL_SUB_CAT, URL_HOME_PAGE,
URL_MAIN_CAT_ONLY;
String[] mainCatName, mainCatId, subCatParentID;
JSONArray jarray, jarray1;
JSONObject jobject, jobject1;
private DrawerLayout mDrawerLayout;
private ListView homeListview, headerListView;
private ExpandableListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
// nav drawer title
private CharSequence mDrawerTitle;
// used to store app title
private CharSequence mTitle;
// slide menu items
private String[] navMenuTitles;
ArrayList<NewsList> newsList;
private ArrayList<NewsDrawerItem> navDrawerItems;
private NewsDrawerItem newsDrawerItems;
private ArrayList<NewsDrawerItem> listNewsHeader = null;
private ArrayList<NewsDrawerChildItem> listNewsChild = null;
private ArrayList<ArrayList<NewsDrawerChildItem>> listChildXXXXXXXXX = null;
NewsListAdapter adapter1;
private NewsDrawerListAdapter adapter;
private NewsDrawerHeaderAdapter adapterGroup;
@Override
protected void onCreate(Bundle savedInstanceState)
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hometab);
mTitle = mDrawerTitle = getTitle();
image = (ImageView) findViewById(R.id.imageView1);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ExpandableListView) findViewById(R.id.list_slidermenu);
homeListview = (ListView) findViewById(R.id.listView1);
headerListView = (ListView) findViewById(R.id.list_header);
// homeListview.setVisibility(View.VISIBLE);
// mDrawerList.setVisibility(View.VISIBLE);
imgloader = new ImageLoader(NewsTabActivity.this);
imgloader.DisplayImage(LOGO, image);
nDrawerSubCat = SUB_CAT;
navDrawerItems = new ArrayList<NewsDrawerItem>();
newsList = new ArrayList<NewsList>();
listNewsHeader = new ArrayList<NewsDrawerItem>();
listNewsChild = new ArrayList<NewsDrawerChildItem>();// ArrayList<ArrayList<ChildTerbaru>>>();
listChildXXXXXXXXX = new ArrayList<ArrayList<NewsDrawerChildItem>>();
System.out.println("DRAWER_SUBCAT ? = " + nDrawerSubCat);
URL_HOME_PAGE = WEB_SERV + "homenews.php";
URL_MAIN_CAT = WEB_SERV + "maincategory.php";
URL_MAIN_CAT_ONLY = WEB_SERV + "maincategory.php";
if (nDrawerSubCat.equalsIgnoreCase("yes"))
URL_SUB_CAT = WEB_SERV + "subcategory.php";
System.out.println("DRAWER_SUBCAT = " + URL_SUB_CAT);
if (nDrawerSubCat.equalsIgnoreCase("yes"))
mDrawerList.setOnChildClickListener(new SlideMenuClickListener());
else
headerListView
.setOnItemClickListener(new SlideMenuClickHeaderListener());
if (WebserviceUtils.isConnectingToInternet(NewsTabActivity.this))
new NewsHomePage().execute(URL_HOME_PAGE);
if (nDrawerSubCat.equalsIgnoreCase("yes"))
new NewsPaperSubCat().execute();
else
new NewsPaperMainCat().execute(URL_MAIN_CAT_ONLY);
// mDrawerList.setVisibility(View.GONE);
// headerListView.setVisibility(View.VISIBLE);
// adapterGroup = new
// NewsDrawerHeaderAdapter(getApplicationContext(),
// navDrawerItems);
// headerListView.setAdapter(adapterGroup);
// setting the nav drawer list adapter
// enabling action bar app icon and behaving it as toggle button
getActionBar().setDisplayHomeAsUpEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, // nav menu toggle icon
R.string.app_name, // nav drawer open - description for
// accessibility
R.string.app_name // nav drawer close - description for
// accessibility
)
public void onDrawerClosed(View view)
getActionBar().setTitle("News Live");
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
public void onDrawerOpened(View drawerView)
getActionBar().setTitle("News Live");
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
;
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null)
// on first time display view for first nav item
displayView();
/**
* Slide menu item click listener
* */
private class SlideMenuClickHeaderListener implements
ListView.OnItemClickListener
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id)
// display view for selected nav drawer item
displayView();
mDrawerList.setVisibility(View.GONE);
headerListView.setVisibility(View.VISIBLE);
NewsListActivity.valuesID(navDrawerItems.get(position).getTitle());
NewsListActivity.valueWEBSERV(WEB_SERV);
System.out.println("NEWS_LIST_ID = "
+ navDrawerItems.get(position).getTitle());
private class SlideMenuClickListener implements
ExpandableListView.OnChildClickListener,
ExpandableListView.OnGroupClickListener
@Override
public boolean onChildClick(ExpandableListView parent, View view,
int groupPosition, int childPosition, long id)
// TODO Auto-generated method stub
// if (nDrawerSubCat.equalsIgnoreCase("no"))
// displayView();
// homeListview.setVisibility(View.GONE);
// NewsListActivity.valuesID(navDrawerItems.get(groupPosition)
// .getId());
// NewsListActivity.valueWEBSERV(WEB_SERV);
// System.out.println("NEWS_EXP_GROUP_LIST_ID = "
// + navDrawerItems.get(groupPosition).getId());
// else
displayView();
homeListview.setVisibility(View.GONE);
NewsListActivity.valuesID(listNewsChild.get(childPosition).getId());
NewsListActivity.valueWEBSERV(WEB_SERV);
System.out.println("NEWS_EXP_CHILD_LIST_ID = "
+ listNewsChild.get(childPosition).getId());
//
return false;
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id)
// TODO Auto-generated method stub
displayView();
// homeListview.setVisibility(View.GONE);
NewsListActivity
.valuesID(navDrawerItems.get(groupPosition).getId());
NewsListActivity.valueWEBSERV(WEB_SERV);
System.out.println("NEWS_EXP_GROUP_LIST_ID = "
+ navDrawerItems.get(groupPosition).getId());
return false;
@Override
public boolean onCreateOptionsMenu(Menu menu)
getMenuInflater().inflate(R.menu.main, menu);
return true;
@Override
public boolean onOptionsItemSelected(MenuItem item)
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item))
return true;
// Handle action bar actions click
return super.onOptionsItemSelected(item);
/* *
* Called when invalidateOptionsMenu() is triggered
*/
@Override
public boolean onPrepareOptionsMenu(Menu menu)
// if nav drawer is opened, hide the action items
return super.onPrepareOptionsMenu(menu);
/**
* Diplaying fragment view for selected nav drawer list item
* */
private void displayView()
// update the main content by replacing fragments
Fragment fragment = null;
fragment = new NewsListActivity();
if (fragment != null)
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
if (nDrawerSubCat.equalsIgnoreCase("yes"))
mDrawerLayout.closeDrawer(mDrawerList);
else
mDrawerLayout.closeDrawer(headerListView);
else
// error in creating fragment
Log.e("NewsTabActivity", "Error in creating fragment");
private class NewsHomePage extends AsyncTask<String, String, String>
private ProgressDialog p_dialog;
@Override
protected void onPreExecute()
// TODO Auto-generated method stub
p_dialog = ProgressDialog.show(NewsTabActivity.this, "",
"Loading...Please wait...", true);
p_dialog.setCancelable(true);
p_dialog.show();
super.onPreExecute();
@Override
protected String doInBackground(String... arg0)
// TODO Auto-generated method stub
JsonParsor json = new JsonParsor();
JSONObject jobject = json.getJSONFromUrl(URL_HOME_PAGE);
try
JSONArray jarray = jobject.getJSONArray("news");
for (int i = 0; i < jarray.length(); i++)
JSONObject jobj = jarray.getJSONObject(i);
String id = jobj.getString("Id");
String cid = jobj.getString("c_id");
String title = jobj.getString("title");
String image = jobj.getString("image");
NewsList news = new NewsList();
news.setId(jobj.getString("Id"));
news.setCid(jobj.getString("c_id"));
news.setTitle(jobj.getString("title"));
news.setImage(jobj.getString("image"));
newsList.add(news);
catch (Exception e)
// TODO: handle exception
e.printStackTrace();
return "sucess";
@Override
protected void onPostExecute(String result)
// TODO Auto-generated method stub
p_dialog.dismiss();
if (result.compareTo("sucess") == 0)
navDrawerItems.clear();
adapter1 = new NewsListAdapter(NewsTabActivity.this,
R.layout.newslist_single_item, newsList);
homeListview.setAdapter(adapter1);
adapter1.notifyDataSetChanged();
else
Toast.makeText(NewsTabActivity.this, "No data Found...",
Toast.LENGTH_LONG).show();
private class NewsPaperSubCat extends AsyncTask<String, String, String>
private ProgressDialog p_dialog;
@Override
protected void onPreExecute()
// TODO Auto-generated method stub
p_dialog = ProgressDialog.show(NewsTabActivity.this, "",
"Loading...Please wait...", true);
p_dialog.setCancelable(true);
p_dialog.show();
super.onPreExecute();
@Override
protected String doInBackground(String... arg0)
// TODO Auto-generated method stub
JsonParsor json = new JsonParsor();
jobject = json.getJSONFromUrl(URL_MAIN_CAT);
// if (nDrawerSubCat.equalsIgnoreCase("yes"))
jobject1 = json.getJSONFromUrl(URL_SUB_CAT);
//
try
if (nDrawerSubCat.equalsIgnoreCase("yes"))
NewsDrawerItem LT = null;
NewsDrawerChildItem CT = null;
listNewsChild = new ArrayList<NewsDrawerChildItem>();
jarray = jobject.getJSONArray("categories");
// if (nDrawerSubCat.equalsIgnoreCase("yes"))
jarray1 = jobject1.getJSONArray("categories");
//
for (int i = 0; i < jarray.length(); i++)
JSONObject jobj = jarray.getJSONObject(i);
mainCatName = new String[jarray.length()];
mainCatId = new String[jarray.length()];
mainCatId[i] = jobj.getString("Id");
mainCatName[i] = jobj.getString("name");
System.out.println("mainCatId[" + i + "] = "
+ mainCatId[i]);
String id = jobj.getString("Id");
String name = jobj.getString("name");
System.out
.println("MAIN_ID = " + id + " NAME= " + name);
// adding nav drawer items to array
LT = new NewsDrawerItem(jobj.getString("Id"),
jobj.getString("name"));
listNewsHeader.add(LT);
// int listsize = listNewsHeader.size();
// for(int k=0 ; k<listsize; k++)
// System.out.println("HEADER_VALUE["+k+"] = "+listNewsHeader.get(k));
//
// if (nDrawerSubCat.equalsIgnoreCase("yes"))
for (int i = 0; i < jarray1.length(); i++)
JSONObject jobj = jarray1.getJSONObject(i);
subCatParentID = new String[jarray1.length()];
subCatParentID[i] = jobj.getString("parent_id");
System.out.println("mainCatId_SubCatId[" + i + " = "
+ subCatParentID[i]);
CT = new NewsDrawerChildItem(jobj.getString("Id"),
jobj.getString("name"));
System.out.println("SUB_MAIN_ID = "
+ jobj.getString("Id") + " NAME= "
+ jobj.getString("name"));
// if(mainCatId[i].contains(subCatParentID[i]))
// String[] temp = new String[mainCatId.length];
// temp[i] = jobj.getString("Id");
// System.out.println("mainCatId_Temp = "+ temp[i]);
//
List similarities = new ArrayList();
for (int j = 0; j < Math.max(mainCatId.length,
subCatParentID.length); j++)
if (mainCatId[i] == subCatParentID[i])
similarities.add(mainCatId[i]);
System.out.println("VALU = " + similarities);
listNewsChild.add(CT);
listChildXXXXXXXXX.add(listNewsChild);
//
// else
// jarray = jobject.getJSONArray("categories");
//
// for (int i = 0; i < jarray.length(); i++)
// JSONObject jobj = jarray.getJSONObject(i);
//
// newsDrawerItems = new NewsDrawerItem();
//
// mainCatName = new String[jarray.length()];
// mainCatId = new String[jarray.length()];
//
// mainCatId[i] = jobj.getString("Id");
// mainCatName[i] = jobj.getString("name");
//
// String id = jobj.getString("Id");
// String name = jobj.getString("name");
//
// System.out.println("MAIN_ID = " + id + " NAME= " + name);
//
// // adding nav drawer items to array
// // navDrawerItems.add(new NewsDrawerItem(mainCatName[i],
// mainCatId[i]));
//
//
catch (Exception e)
// TODO: handle exception
e.printStackTrace();
return "sucess";
@Override
protected void onPostExecute(String result)
// TODO Auto-generated method stub
p_dialog.dismiss();
super.onPostExecute(result);
if (result.compareTo("sucess") == 0)
if (nDrawerSubCat.equalsIgnoreCase("yes"))
mDrawerList.setVisibility(View.GONE);
adapter = new NewsDrawerListAdapter(NewsTabActivity.this,
listNewsHeader, listChildXXXXXXXXX);
mDrawerList.setAdapter(adapter);
adapter.notifyDataSetChanged();
else
Toast.makeText(NewsTabActivity.this, "No data Found...",
Toast.LENGTH_LONG).show();
private class NewsPaperMainCat extends AsyncTask<String, String, String>
private ProgressDialog p_dialog;
@Override
protected void onPreExecute()
// TODO Auto-generated method stub
p_dialog = ProgressDialog.show(NewsTabActivity.this, "",
"Loading...Please wait...", true);
p_dialog.setCancelable(true);
p_dialog.show();
super.onPreExecute();
@Override
protected String doInBackground(String... arg0)
// TODO Auto-generated method stub
JsonParsor json1 = new JsonParsor();
JSONObject jObject = json1.getJSONFromUrl(URL_MAIN_CAT_ONLY);
try
NewsDrawerItem NDI = null;
JSONArray jarr = jObject.getJSONArray("categories");
for (int i = 0; i < jarr.length(); i++)
JSONObject jObj = jarr.getJSONObject(i);
mainCatName = new String[jarr.length()];
mainCatId = new String[jarr.length()];
mainCatId[i] = jObj.getString("Id");
mainCatName[i] = jObj.getString("name");
String id = jObj.getString("Id");
String name = jObj.getString("name");
System.out.println("MAIN_ID_ONLY = " + id
+ " MAIN_NAME_ONLY= " + name);
// adding nav drawer items to array
navDrawerItems.add(new NewsDrawerItem(mainCatName[i],
mainCatId[i]));
catch (Exception e)
// TODO: handle exception
return "sucess";
@Override
protected void onPostExecute(String result)
// TODO Auto-generated method stub
p_dialog.dismiss();
super.onPostExecute(result);
if (result.compareTo("sucess") == 0)
mDrawerList.setVisibility(View.GONE);
headerListView.setVisibility(View.VISIBLE);
adapterGroup = new NewsDrawerHeaderAdapter(
NewsTabActivity.this, navDrawerItems);
headerListView.setAdapter(adapterGroup);
adapterGroup.notifyDataSetChanged();
else
Toast.makeText(NewsTabActivity.this, "No data Found...",
Toast.LENGTH_LONG).show();
public static void valueID(String id)
// TODO Auto-generated method stub
Id = id;
public static void valueLogo(String logo)
// TODO Auto-generated method stub
LOGO = logo;
public static void valueWebService(String webServ)
// TODO Auto-generated method stub
WEB_SERV = webServ;
public static void valueSubCat(String subCat)
// TODO Auto-generated method stub
SUB_CAT = subCat;
这是可扩展的适配器类，
public class NewsDrawerHeaderAdapter extends BaseAdapter
private Context context;
private ArrayList<NewsDrawerItem> navDrawerItems;
public NewsDrawerHeaderAdapter(Context context,
ArrayList<NewsDrawerItem> navDrawerItems)
this.context = context;
this.navDrawerItems = navDrawerItems;
@Override
public int getCount()
// TODO Auto-generated method stub
return navDrawerItems.size();
@Override
public Object getItem(int position)
// TODO Auto-generated method stub
return navDrawerItems.get(position);
@Override
public long getItemId(int position)
// TODO Auto-generated method stub
return position;
@Override
public View getView(int position, View convertView, ViewGroup parent)
// TODO Auto-generated method stub
if (convertView == null)
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.drawer_list_item, null);
TextView txtTitle = (TextView) convertView.findViewById(R.id.title);
txtTitle.setText(html.fromHtml(navDrawerItems.get(position).getId()));
return convertView;
这里是模型类
public class NewsDrawerItem
private String title, Id, PId;
private int icon;
private ArrayList<NewsDrawerItem> childItemList = new ArrayList<NewsDrawerItem>();
public NewsDrawerItem()
public NewsDrawerItem(String Id, String title)
this.Id = Id;
this.title = title;
public NewsDrawerItem(String Id, String title, String PId)
this.Id = Id;
this.title = title;
this.PId = PId;
public String getTitle()
return this.title;
public String getId()
return this.Id;
public String getPId()
return this.PId;
public int getIcon()
return this.icon;
public ArrayList<NewsDrawerItem> getChildItem()
System.out.println("CHILD_ITEM = "+childItemList);
return childItemList;
public void setTitle(String title)
this.title = title;
public void setId(String Id)
this.Id = Id;
public void setPId(String PId)
this.PId = PId;
public void setIcon(int icon)
this.icon = icon;
public void setChildItem(ArrayList<NewsDrawerItem> childItemList)
this.childItemList = childItemList;
【问题讨论】：
我相信您假设在展开时单击可扩展的 Listview，您可以使用 onGroupClicklistener 来查看您的组是否被单击 是的，我写的。但对如何识别子元素是否为空感到困惑？ 你必须发布你是如何实现你的可扩展列表视图模型的，你可以很容易地判断孩子是否为空 从您的代码中我可以告诉您的是，您无法读取为空的子项，因为如果您尝试它可能会出现空指针错误，那么它将为空，您可以做的是创建一个数据模型分别为组和项目的父和子，并使子类成为父类中的数组列表变量，这样您就可以在可扩展适配器中轻松检查您的组，如果您想要一些东西，我会给您一些代码 是的 pankanj...我需要一些代码。我尝试了很多，但没有希望。 【参考方案1】：在此代码中，您将看到子项与父项相关联，因此对于给定的父项，您可以检查它是否为空或为空，并且列表中父项的给定位置，这样您就可以弄清楚您必须做什么如果子列表为空，则执行下一步
子.java
public class Child
private String _Title_child = "";
public String get_Title_child()
return _Title_child;
public void set_Title_child(String _Title_child)
this._Title_child = _Title_child;
父类.java
public class Parent
private int _icon_ID = 0;
private String _Title_parent = "";
private ArrayList<Child> _Children = null;
public int get_icon_ID()
return _icon_ID;
public void set_icon_ID(int _icon_ID)
this._icon_ID = _icon_ID;
public String get_Title_parent()
return _Title_parent;
public void set_Title_parent(String _Title_parent)
this._Title_parent = _Title_parent;
public ArrayList<Child> get_Children()
return _Children;
public void set_Children(ArrayList<Child> _Children)
this._Children = _Children;
适配器
public class MyExpandableAdapter extends BaseExpandableListAdapter
private Context _Context;
private ArrayList<Parent> _Parents;
private LayoutInflater _Inflater;
private static MyExpandableAdapter adapter = new MyExpandableAdapter();
private MyExpandableAdapter()
public static MyExpandableAdapter deInitialization(Context context, ArrayList<Parent> parents)
adapter._Context = context;
adapter._Parents = parents;
adapter._Inflater = LayoutInflater.from(adapter._Context);
return adapter;
@Override
public int getGroupCount()
return _Parents.size();
@Override
public int getChildrenCount(int groupPosition)
return _Parents.get(groupPosition).get_Children().size();
@Override
public Object getGroup(int groupPosition)
return _Parents.get(groupPosition);
@Override
public Object getChild(int groupPosition, int childPosition)
return _Parents.get(groupPosition).get_Children().get(childPosition);
@Override
public long getGroupId(int groupPosition)
return groupPosition;
@Override
public long getChildId(int groupPosition, int childPosition)
return childPosition;
@Override
public boolean hasStableIds()
return false;
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent)
if(convertView == null)
convertView = _Inflater.inflate(R.layout.list_group,parent,false);
ImageView icon_Group = (ImageView)convertView.findViewById(R.id.imageView_icon_group);
TextView title_group = (TextView)convertView.findViewById(R.id.textView_title_group);
icon_Group.setImageResource(_Parents.get(groupPosition).get_icon_ID());
title_group.setText(_Parents.get(groupPosition).get_Title_parent());
return convertView;
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent)
if(convertView==null)
convertView = _Inflater.inflate(R.layout.list_item,parent,false);
TextView title_child = (TextView)convertView.findViewById(R.id.textView_title_child);
title_child.setText(_Parents.get(groupPosition).get_Children().get(childPosition).get_Title_child());
return convertView;
@Override
public boolean isChildSelectable(int groupPosition, int childPosition)
return true;
list_group.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:padding="4dp"
android:gravity="center_vertical"
android:layout_
android:layout_>
<ImageView
android:layout_
android:layout_
android:id="@+id/imageView_icon_group"
android:layout_marginTop="4dp"
android:layout_marginBottom="4dp"/>
<TextView
android:id="@+id/textView_title_group"
android:layout_
android:layout_
android:layout_marginLeft="10dp"
android:padding="4dp"
android:textSize="18dip"
android:text="Parent Item"
android:textColor="#c0000000" />
</LinearLayout>
list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_
android:layout_>
<TextView
android:id="@+id/textView_title_child"
android:layout_
android:layout_
android:textSize="14dip"
android:text="Child Item"
android:layout_marginTop="4dp"
android:layout_marginBottom="4dp"
android:layout_marginLeft="40dp" />
</LinearLayout>
【讨论】：
【参考方案2】：在您将适配器设置为expandableListView 的mainAcitivity 中
expandableListAdapter = new ExpandableListAdapter(headerList, hashMap);
listViewExpandable.setAdapter(expandableListAdapter);
在内部调用其方法ExpandableListView.OnChildClickListener，通过传递 groupPosition 来获取子节点的数量，该 groupPosition 将返回与您传递的 groupPosition 相关的子节点的数量。 这是一个代码sn -p
listViewExpandable.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener()
@Override
public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition,
long id)
Log.e("GroupClicked"," Position = " + groupPosition;
int ChildCountWay1 = expandableListAdapter .getChildrenCount(groupPosition);
// OR
int childCountWay2 = parent.getExpandableListAdapter().getChildrenCount(groupPosition);
if (childCountWay2<1)
// do whatever you want
return true;
);
【讨论】：
以上是关于如果可扩展列表视图android中的孩子为空，如何单击组的主要内容，如果未能解决你的问题，请参考以下文章
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