是它可以改变expandablelistview的childPosition ID？ [英] is it possible to change the childPosition id of the expandablelistview?
本文介绍了是它可以改变expandablelistview的childPosition ID？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
只想知道如果它是可以改变expandablelistview的childPosition的id
因为我想给childPosition ID更改为我的类别ID。
这是我的DataChild，我已经得到类的名字，但我也希望得到的类别编号。我该怎么做呢？
列表＆LT;串GT;类别=新的ArrayList＆LT;串GT;（）;
的for（int i = 0; I＆LT; categories.length（）;我++）{
JSONObject的C = categories.getJSONObject（I）
字符串categories_name = c.getString（TAG_NAME）;
字符串categories_id = c.getString（TAG_ID）; CATEGORY.add（categories_name）;
}
这是我的setOnChildClickListener在那里我得到childPosition。
//列表视图儿童点击监听器
expListView.setOnChildClickListener（新ExpandableListView.OnChildClickListener（）{ @覆盖
公共布尔onChildClick（ExpandableListView父视图V，
INT groupPosition，诠释childPosition，长ID）{
// TODO自动生成方法存根
Toast.makeText（
getActivity（），
listDataHeader.get（groupPosition）
+：
+ listDataChild.get（
listDataHeader.get（groupPosition））。得到（
childPosition），Toast.LENGTH_SHORT）
。显示（）;
返回false;
}
}）;
这是完整的code
包com.example.administrator.mosbeau;进口android.app.FragmentManager;
进口android.os.AsyncTask;
进口android.support.v7.app.ActionBarActivity;
进口android.app.Activity;
进口android.support.v7.app.ActionBar;
进口android.support.v4.app.Fragment;
进口android.support.v7.app.ActionBarDrawerToggle;
进口android.support.v4.view.GravityCompat;
进口android.support.v4.widget.DrawerLayout;
进口android.content.Shared preferences;
进口android.content.res.Configuration;
进口android.os.Bundle;
。进口的Android preference preferenceManager。
进口android.view.LayoutInflater;
进口android.view.Menu;
进口android.view.MenuInflater;
进口android.view.MenuItem;
进口android.view.View;
进口android.view.ViewGroup;
进口android.widget.ExpandableListView;
进口android.widget.ListAdapter;
进口android.widget.ListView;
进口android.widget.SimpleAdapter;
进口android.widget.Toast;进口org.apache.http.HttpEntity;
进口org.apache.http.Htt presponse;
进口org.apache.http.client.methods.HttpPost;
进口org.apache.http.impl.client.DefaultHttpClient;
进口org.apache.http.params.BasicHttpParams;
进口org.json.JSONArray;
进口org.json.JSONException;
进口org.json.JSONObject;进口java.io.BufferedReader中;
进口的java.io.InputStream;
进口java.io.InputStreamReader中;
进口的java.util.ArrayList;
进口的java.util.HashMap;
进口的java.util.List;/ **
*用于管理并导航抽屉presentation互动片段。
*请参阅的＆lt; A HREF =https://developer.android.com/design/patterns/navigation-drawer.html#Interaction＆GT;
*设计准则＆lt; / A＆GT;在这里实施的行为的一个完整的解释。
* /
公共类NavigationDrawerFragment扩展片段{ / **
*请记住所选项目的位置。
* /
私有静态最后弦乐STATE_SELECTED_POSITION =selected_navigation_drawer_position; / **
*每设计指南，您应该手动上展示推出的抽屉里，直到用户
*扩展它。这种共享preference跟踪此。
* /
私有静态最后弦乐preF_USER_LEARNED_DRAWER =navigation_drawer_learned; / **
*一个指向当前回调实例（活动）。
* /
私人NavigationDrawerCallbacks mCallbacks; / **
*是关系操作栏中的导航抽屉助手组件。
* /
私人ActionBarDrawerToggle mDrawerToggle; 私人DrawerLayout mDrawerLayout;
私人的ListView mDrawerListView;
私人查看mFragmentContainerView; 私人INT mCurrentSelectedPosition = 0;
私人布尔mFromSavedInstanceState;
私人布尔mUserLearnedDrawer; 串myJSON;
私有静态最后弦乐TAG_RESULTS =结果;
私有静态最后弦乐TAG_ID =categories_id;
私有静态最后弦乐TAG_NAME =categories_name;
JSONArray类= NULL;
公共NavigationDrawerFragment（）{
} 布尔InternetAvailable = FALSE;
Seocnd detectconnection; @覆盖
公共无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）; //读取在该标志指示用户是否已经证实的认识
//抽屉里。详情请参阅preF_USER_LEARNED_DRAWER。
共享preferences SP = preferenceManager.getDefaultShared preferences（getActivity（））;
mUserLearnedDrawer = sp.getBoolean（preF_USER_LEARNED_DRAWER，FALSE）; 如果（savedInstanceState！= NULL）{
mCurrentSelectedPosition = savedInstanceState.getInt（STATE_SELECTED_POSITION）;
mFromSavedInstanceState = TRUE;
} //选择任一默认项（0）或最后选择的项目。
选择信息（mCurrentSelectedPosition）; } @覆盖
公共无效onActivityCreated（捆绑savedInstanceState）{
super.onActivityCreated（savedInstanceState）;
//表明该片段想影响的一组操作栏中的行动。
setHasOptionsMenu（真）;
} ExpandableListAdapter listAdapter;
ExpandableListView expListView;
清单＆LT;串GT; listDataHeader;
HashMap的＆LT;字符串列表＆LT;串GT;＆GT; listDataChild; @覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，
捆绑savedInstanceState）{ 查看fragmentView = inflater.inflate（
R.layout.fragment_navigation_drawer，集装箱，FALSE）;
/ * mDrawerListView =（ListView控件）fragmentView.findViewById（R.id.listView）; // mDrawerListView =（ListView控件）inflater.inflate（
//R.layout.fragment_navigation_drawer，集装箱，FALSE）;
mDrawerListView.setOnItemClickListener（新AdapterView.OnItemClickListener（）{
@覆盖
公共无效onItemClick（适配器视图＆LT;＆GT;母公司，观景，INT位置，长的id）{
选择信息（位置）;
}
}）;
mDrawerListView.setAdapter（新ArrayAdapter＆LT;串GT;（
getActionBar（）。getThemedContext（），
android.R.layout.simple_list_item_activated_1，
android.R.id.text1，
新的String [] {
的getString（R.string.title_home）
的getString（R.string.title_category）
的getString（R.string.title_myaccount）
的getString（R.string.title_referafriend）
的getString（R.string.title_about）
的getString（R.string.title_privacypocity）
的getString（R.string.title_shippingterms）
的getString（R.string.title_contactus）
}））;
mDrawerListView.setItemChecked（mCurrentSelectedPosition，真实）; * / //获取列表视图
expListView =（ExpandableListView）fragmentView.findViewById（R.id.lvExp）; // preparing列表数据
// prepareListData（）; detectconnection =新Seocnd（getActivity（））;
InternetAvailable = detectconnection.InternetConnecting（）;
如果（InternetAvailable）{
的getData（）;
}其他{
选择信息（100）;
}
返回fragmentView;
}
公共无效的getData（）{
类GetDataJSON扩展的AsyncTask＆LT;弦乐，太虚，字符串＆GT; { @覆盖
保护字符串doInBackground（字符串... PARAMS）{
DefaultHttpClient的HttpClient =新DefaultHttpClient（新BasicHttpParams（））;
HttpPost httppost =新HttpPost（http://joehamirbalabadan.com/android/android/categories.php）; //取决于你的Web服务
httppost.setHeader（内容类型，应用/ JSON）; 为InputStream的InputStream = NULL;
字符串结果= NULL;
尝试{
HTT presponse响应= httpclient.execute（httppost）;
HttpEntity实体= response.getEntity（）; 的InputStream = entity.getContent（）;
// JSON默认为UTF-8
读者的BufferedReader =新的BufferedReader（新的InputStreamReader（InputStream中，UTF-8），8）;
StringBuilder的SB =新的StringBuilder（）; 串线= NULL;
而（（行= reader.readLine（））！= NULL）
{
sb.append（行+\\ n）;
}
结果= sb.toString（）;
}赶上（例外五）{
//哎呀
}
最后{
尝试{如果（InputStream的！= NULL）inputStream.close（）;}赶上（例外挤）{}
}
返回结果;
} @覆盖
保护无效onPostExecute（字符串结果）{
myJSON =结果;
prepareListData（）; listAdapter =新ExpandableListAdapter（getActivity（），listDataHeader，listDataChild）; //设置列表适配器
expListView.setAdapter（listAdapter）; //列表视图组单击监听器
expListView.setOnGroupClickListener（新ExpandableListView.OnGroupClickListener（）{ @覆盖
公共布尔onGroupClick（ExpandableListView父视图V，
INT groupPosition，长ID）{
/*Toast.makeText（getActivity（），
集团已点击+ listDataHeader.get（groupPosition）
Toast.LENGTH_SHORT）.show（）; * /
如果（groupPosition == 1）{
返回false;
}其他{
选择信息（groupPosition）;
返回true;
}
}
}）; //列表视图儿童点击监听器
expListView.setOnChildClickListener（新ExpandableListView.OnChildClickListener（）{ @覆盖
公共布尔onChildClick（ExpandableListView父视图V，
INT groupPosition，诠释childPosition，长ID）{
// TODO自动生成方法存根
Toast.makeText（
getActivity（），
listDataHeader.get（groupPosition）
+：
+ listDataChild.get（
listDataHeader.get（groupPosition））。得到（
childPosition），Toast.LENGTH_SHORT）
。显示（）;
返回false;
}
}）;
}
}
GetDataJSON G =新GetDataJSON（）;
g.execute（）;
} 保护无效prepareListData（）{
尝试{
JSONObject的jsonObj =新的JSONObject（myJSON）;
类别= jsonObj.getJSONArray（TAG_RESULTS）; listDataHeader =新的ArrayList＆LT;串GT;（）;
listDataChild =新的HashMap＆LT;字符串列表＆LT;串GT;＆GT;（）; //添加组数据
listDataHeader.add（HOME）;
listDataHeader.add（类别）;
listDataHeader.add（我的帐户）;
listDataHeader.add（推荐好友）;
listDataHeader.add（关于）;
listDataHeader.add（隐私保护政策）;
listDataHeader.add（运送条款）;
listDataHeader.add（联系我们）; 清单＆LT;串GT;类别=新的ArrayList＆LT;串GT;（）;
的for（int i = 0; I＆LT; categories.length（）;我++）{
JSONObject的C = categories.getJSONObject（I）
字符串categories_name = c.getString（TAG_NAME）;
字符串categories_id = c.getString（TAG_ID）; CATEGORY.add（categories_name）;
} listDataChild.put（listDataHeader.get（1）类）; //头，儿童数据 }赶上（JSONException E）{
e.printStackTrace（）;
} }
/ *
* preparing列表数据
* /
/ *私人无效prepareListData（）{
listDataHeader =新的ArrayList＆LT;串GT;（）;
listDataChild =新的HashMap＆LT;字符串列表＆LT;串GT;＆GT;（）; //添加组数据
listDataHeader.add（HOME）;
listDataHeader.add（类别）;
listDataHeader.add（我的帐户）;
listDataHeader.add（推荐好友）;
listDataHeader.add（关于）;
listDataHeader.add（隐私保护政策）;
listDataHeader.add（运送条款）;
listDataHeader.add（联系我们）; //添加子数据
清单＆LT;串GT;类别=新的ArrayList＆LT;串GT;（）;
CATEGORY.add（类1）;
CATEGORY.add（第二类）;
CATEGORY.add（第三类）;
CATEGORY.add（类别4）;
CATEGORY.add（5类）;
listDataChild.put（listDataHeader.get（1）类）; //头，儿童数据
} * / 公共布尔isDrawerOpen（）{
返回mDrawerLayout = NULL＆放大器;！＆安培; mDrawerLayout.isDrawerOpen（mFragmentContainerView）;
} / **
*这个片段的用户必须调用这个方法来设置导航抽屉相互作用。
*
* @参数fragmentId Android的：在它的活动的布局这个片段的ID。
* @参数drawerLayout包含此片段的UI的DrawerLayout。
* /
公共无效设置（INT fragmentId，DrawerLayout drawerLayout）{
mFragmentContainerView = getActivity（）findViewById（fragmentId）。
mDrawerLayout = drawerLayout; //抽屉打开时设置覆盖的主要内容自定义阴影
mDrawerLayout.setDrawerShadow（R.drawable.drawer_shadow，GravityCompat.START）;
//设置抽屉的列表视图与项目，然后点击监听器 动作条动作条= getActionBar（）;
actionBar.setDisplayHomeAsUpEnabled（真）;
actionBar.setHomeButtonEnabled（真）; // ActionBarDrawerToggle联系在一起的适当交互
//抽屉式导航栏和操作栏的程序图标之间。
mDrawerToggle =新ActionBarDrawerToggle（
getActivity（）/ *主机活动* /
mDrawerLayout，/ * DrawerLayout对象* /
R.string.navigation_drawer_open，/ *开放抽屉的描述可访问* /
R.string.navigation_drawer_close / *关闭抽屉的描述可访问* /
）{
@覆盖
公共无效onDrawerClosed（查看drawerView）{
super.onDrawerClosed（drawerView）;
如果（！isAdded（））{
返回;
} 。getActivity（）supportInvalidateOptionsMenu（）;在prepareOptionsMenu //调用（）
} @覆盖
公共无效onDrawerOpened（查看drawerView）{
super.onDrawerOpened（drawerView）;
如果（！isAdded（））{
返回;
} 如果（！mUserLearnedDrawer）{
//用户手动打开抽屉;该标志存储prevent自动显示
//在未来自动导航的抽屉里。
mUserLearnedDrawer = TRUE;
共享preferences SP = preferenceManager
.getDefaultShared preferences（getActivity（））;
。sp.edit（）putBoolean（preF_USER_LEARNED_DRAWER，真实）。适用（）;
} 。getActivity（）supportInvalidateOptionsMenu（）;在prepareOptionsMenu //调用（）
}
}; //如果用户没有学习关于抽屉，打开它给他们介绍的抽屉里，
//每个抽屉式导航栏的设计指南。
如果（mUserLearnedDrawer＆安培;！＆安培;！mFromSavedInstanceState）{
mDrawerLayout.openDrawer（mFragmentContainerView）;
} //推迟code依赖于previous实例状态的恢复。
mDrawerLayout.post（新的Runnable（）{
@覆盖
公共无效的run（）{
mDrawerToggle.syncState（）;
}
}）; mDrawerLayout.setDrawerListener（mDrawerToggle）;
} 私人无效选择信息（INT位置）{
mCurrentSelectedPosition =位置;
如果（mDrawerListView！= NULL）{
mDrawerListView.setItemChecked（位置，真正的）;
}
如果（mDrawerLayout！= NULL）{
mDrawerLayout.closeDrawer（mFragmentContainerView）;
}
如果（mCallbacks！= NULL）{
mCallbacks.onNavigationDrawerItemSelected（位置）;
}
} @覆盖
公共无效onAttach（活动活动）{
super.onAttach（活动）;
尝试{
mCallbacks =（NavigationDrawerCallbacks）活性;
}赶上（抛出ClassCastException E）{
抛出新ClassCastException异常（活动必须实现NavigationDrawerCallbacks。）;
}
} @覆盖
公共无效onDetach（）{
super.onDetach（）;
mCallbacks = NULL;
} @覆盖
公共无效的onSaveInstanceState（捆绑outState）{
super.onSaveInstanceState（outState）;
outState.putInt（STATE_SELECTED_POSITION，mCurrentSelectedPosition）;
} @覆盖
公共无效onConfigurationChanged（配置NEWCONFIG）{
super.onConfigurationChanged（NEWCONFIG）;
//转发新配置抽屉切换组件。
mDrawerToggle.onConfigurationChanged（NEWCONFIG）;
} @覆盖
公共无效onCreateOptionsMenu（菜单菜单，MenuInflater气筒）{
//如果抽屉被打开，显示在操作栏中的应用程序的全球行动。也可以看看
// showGlobalContextActionBar，控制操作栏的左上角区域。
如果（mDrawerLayout =空＆放大器;！＆放大器; isDrawerOpen（））{
inflater.inflate（R.menu.global，菜单）;
showGlobalContextActionBar（）;
}
super.onCreateOptionsMenu（菜单，充气器）;
} @覆盖
公共布尔onOptionsItemSelected（菜单项项）{
如果（mDrawerToggle.onOptionsItemSelected（项目））{
返回true;
} 如果（item.getItemId（）== R.id.action_example）{
Toast.makeText（getActivity（），示例行动，Toast.LENGTH_SHORT）.show（）;
返回true;
} 返回super.onOptionsItemSelected（项目）;
} / **
*每导航抽屉式设计的指导方针，更新操作栏，显示全球应用
*语境，而不仅仅是什么是在当前屏幕。
* /
私人无效showGlobalContextActionBar（）{
动作条动作条= getActionBar（）;
actionBar.setDisplayShowTitleEnabled（真）;
actionBar.setNavigationMode（ActionBar.NAVIGATION_MODE_STANDARD）;
actionBar.setTitle（R.string.app_name）;
} 私有动作条getActionBar（）{
返回（（ActionBarActivity）getActivity（））getSupportActionBar（）;
} / **
*回调接口，使用这个片段的所有活动必须实现。
* /
公共静态界面NavigationDrawerCallbacks {
/ **
*当选择导航抽屉项目时调用。
* /
无效onNavigationDrawerItemSelected（INT位置）;
}
}
ExpandableListAdapter.java
包com.example.administrator.mosbeau;/ **
*创建者管理员在2015年9月21日。
* /进口android.content.Context;
进口android.graphics.Typeface;
进口android.view.LayoutInflater;
进口android.view.View;
进口android.view.ViewGroup;
进口android.widget.BaseExpandableListAdapter;
进口android.widget.TextView;进口的java.util.HashMap;
进口的java.util.List;公共类ExpandableListAdapter扩展BaseExpandableListAdapter { 私人语境_context;
私人列表＆LT;串GT; _listDataHeader; //头标题
//子数据头标题格式，标题子
私人的HashMap＆LT;字符串列表＆LT;串GT;＆GT; _listDataChild; 公共ExpandableListAdapter（上下文的背景下，列表与LT;弦乐＆GT; listDataHeader，
HashMap的＆LT;字符串列表＆LT;串GT;＆GT; listChildData）{
this._context =背景;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
} @覆盖
公共对象getChild（INT groupPosition，诠释childPosititon）{
返回this._listDataChild.get（this._listDataHeader.get（groupPosition））
获得（childPosititon）;
} @覆盖
众长getChildId（INT groupPosition，诠释childPosition）{
返回childPosition;
} @覆盖
公共查看getChildView（INT groupPosition，最终诠释childPosition，
布尔isLastChild，查看convertView，父母的ViewGroup）{ 最后弦乐childText =（字符串）getChild（groupPosition，childPosition）; 如果（convertView == NULL）{
LayoutInflater infalInflater =（LayoutInflater）this._context
.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
convertView = infalInflater.inflate（R.layout.list_item，NULL）;
} TextView的txtListChild =（TextView中）convertView
.findViewById（R.id.lblListItem）; txtListChild.setText（childText）;
返回convertView;
} @覆盖
公众诠释getChildrenCount（INT groupPosition）{
返回this._listDataChild.get（this._listDataHeader.get（groupPosition））
。尺寸（）;
} @覆盖
公共对象getGroup（INT groupPosition）{
返回this._listDataHeader.get（groupPosition）;
} @覆盖
公众诠释getGroupCount（）{
返回this._listDataHeader.size（）;
} @覆盖
众长getGroupId（INT groupPosition）{
返回groupPosition;
} @覆盖
公共查看getGroupView（INT groupPosition，布尔isExpanded，
查看convertView，父母的ViewGroup）{
字符串headerTitle =（字符串）getGroup（groupPosition）;
如果（convertView == NULL）{
LayoutInflater infalInflater =（LayoutInflater）this._context
.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
convertView = infalInflater.inflate（R.layout.list_group，NULL）;
} TextView的lblListHeader =（TextView中）convertView
.findViewById（R.id.lblListHeader）;
lblListHeader.setTypeface（NULL，Typeface.BOLD）;
lblListHeader.setText（headerTitle）; 返回convertView;
} @覆盖
公共布尔hasStableIds（）{
返回false;
} @覆盖
公共布尔isChildSelectable（INT groupPosition，诠释childPosition）{
返回true;
}
}
新问题
我改变我的onChildClick这里是code
公共布尔onChildClick（ExpandableListView父视图V，
INT groupPosition，诠释childPosition，长ID）{
// TODO自动生成方法存根 串头= listDataHeader.get（groupPosition）;
子类= listDataChild.get（头）获得（childPosition）; // child.name拿到名
// child.id拿到ID
//Toast.makeText(getActivity(),\"ChildNme：+ child.name +childID的：+ child.id，Toast.LENGTH_SHORT）.show（）;
选择信息（1）; 返回false;
}
选择信息（1）会在我的MainActivity。
在code，这部分
否则，如果（位置== 1）{
fragmentManager.beginTransaction（）
.replace（R.id.container，CategoryFragment.newInstance（））
。承诺（）;
}
那么CategoryFragment就会显示出来。
现在我的问题是如何通过ChildName和childID的，在previous问题？
解决我想的ChildName和childID的传递给我的CategoryFragment
包com.example.administrator.mosbeau;进口android.app.Activity;
进口android.app.Fragment;
进口android.os.Bundle;
进口android.support.annotation.Nullable;
进口android.view.LayoutInflater;
进口android.view.View;
进口android.view.ViewGroup;/ **
*创建者管理员在2015年9月18日。
* /
公共类CategoryFragment扩展片段{ 公共静态的newInstance CategoryFragment（）{
CategoryFragment片段=新CategoryFragment（）;
返回片段;
} 公共CategoryFragment（）{
} @Nullable
@覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，捆绑savedInstanceState）{
查看rootView = inflater.inflate（R.layout.categorylayout，集装箱，FALSE）; 。getActivity（）invalidateOptionsMenu（）; 返回rootView;
} @覆盖
公共无效onAttach（活动活动）{
super.onAttach（活动）;
（（MainActivity）活性）.onSectionAttached（2）;
}
}
解决方案
首先，你需要创建模型类（可以说类），包含名称和 ID ：
公共类分类{
公共字符串名称;
公共字符串ID;
}
然后从JSON加载类对象的列表：
列表＆LT;类别及GT;类别=新的ArrayList＆LT;类别及GT;（）;
的for（int i = 0; I＆LT; categories.length（）;我++）{
JSONObject的C = categories.getJSONObject（I）
分类分类=新类别（）;
category.name = c.getString（TAG_NAME）;
category.id = c.getString（TAG_ID）; CATEGORY.add（类）;
}
最后通过一个的HashMap＆LT;字符串列表＆LT;类别＆GT;＆GT; 为您的适配器，而不是的HashMap＆LT参数;字符串列表＆LT;弦乐＆GT; ＆GT; 。并更改适配器的方法来支持类对象，而不是字符串。
所以，当你调用 getChild（）方法，它会返回一个类别对象，在这里你可以找到名称和 ID （ Category.name ， Category.id ）
更新
您的适配器类更改为：
公共类ExpandableListAdapter扩展BaseExpandableListAdapter { 私人语境_context;
私人列表＆LT;串GT; _listDataHeader; //头标题
//子数据头标题格式，标题子
私人的HashMap＆LT;字符串列表＆LT;分类和GT;＆GT; _listDataChild; 公共ExpandableListAdapter（上下文的背景下，列表与LT;弦乐＆GT; listDataHeader，
HashMap的＆LT;字符串列表＆LT;分类和GT;＆GT; listChildData）{
this._context =背景;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
} @覆盖
公共类别getChild（INT groupPosition，诠释childPosititon）{
返回this._listDataChild.get（this._listDataHeader.get（groupPosition））
获得（childPosititon）;
} @覆盖
众长getChildId（INT groupPosition，诠释childPosition）{
返回childPosition;
} @覆盖
公共查看getChildView（INT groupPosition，最终诠释childPosition，
布尔isLastChild，查看convertView，父母的ViewGroup）{ 最后一类childCategory =（类别）getChild（groupPosition，childPosition）; 如果（convertView == NULL）{
LayoutInflater infalInflater =（LayoutInflater）this._context
.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
convertView = infalInflater.inflate（R.layout.list_item，NULL）;
} TextView的txtListChild =（TextView中）convertView
.findViewById（R.id.lblListItem）; txtListChild.setText（childCategory.name）;
返回convertView;
} @覆盖
公众诠释getChildrenCount（INT groupPosition）{
返回this._listDataChild.get（this._listDataHeader.get（groupPosition））
。尺寸（）;
} @覆盖
公共对象getGroup（INT groupPosition）{
返回this._listDataHeader.get（groupPosition）;
} @覆盖
公众诠释getGroupCount（）{
返回this._listDataHeader.size（）;
} @覆盖
众长getGroupId（INT groupPosition）{
返回groupPosition;
} @覆盖
公共查看getGroupView（INT groupPosition，布尔isExpanded，
查看convertView，父母的ViewGroup）{
字符串headerTitle =（字符串）getGroup（groupPosition）;
如果（convertView == NULL）{
LayoutInflater infalInflater =（LayoutInflater）this._context
.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
convertView = infalInflater.inflate（R.layout.list_group，NULL）;
} TextView的lblListHeader =（TextView中）convertView
.findViewById（R.id.lblListHeader）;
lblListHeader.setTypeface（NULL，Typeface.BOLD）;
lblListHeader.setText（headerTitle）; 返回convertView;
} @覆盖
公共布尔hasStableIds（）{
返回false;
} @覆盖
公共布尔isChildSelectable（INT groupPosition，诠释childPosition）{
返回true;
}
}
而在你的点击监听器：
expListView.setOnChildClickListener（新ExpandableListView.OnChildClickListener（）{ @覆盖
公共布尔onChildClick（ExpandableListView父视图V，
INT groupPosition，诠释childPosition，长ID）{
// TODO自动生成方法存根 串头= listDataHeader.get（groupPosition）;
子类= listDataChild.get（头）获得（childPosition）; // child.name拿到名
// child.id拿到ID
Toast.makeText（getActivity（），ChildNme：+ child.name +childID的：+ child.id，Toast.LENGTH_SHORT）.show（）;
返回false;
}
}）;
just want to know if it is possible to change the childPosition id of the expandablelistview?
because i want to change the childPosition id to my category id..
this is my DataChild, i already get categories name but i also want to get the categories id. how do i do that?
List<String> CATEGORY = new ArrayList<String>();
for(int i=0;i<categories.length();i++){
JSONObject c = categories.getJSONObject(i);
String categories_name = c.getString(TAG_NAME);
String categories_id = c.getString(TAG_ID);
CATEGORY.add(categories_name);
}
this is my setOnChildClickListener where i get the childPosition.
// Listview on child click listener
expListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
Toast.makeText(
getActivity(),
listDataHeader.get(groupPosition)
+ " : "
+ listDataChild.get(
listDataHeader.get(groupPosition)).get(
childPosition), Toast.LENGTH_SHORT)
.show();
return false;
}
});
this is the complete code
package com.example.administrator.mosbeau;
import android.app.FragmentManager;
import android.os.AsyncTask;
import android.support.v7.app.ActionBarActivity;
import android.app.Activity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ExpandableListView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
/**
* Fragment used for managing interactions for and presentation of a navigation drawer.
* See the <a href="https://developer.android.com/design/patterns/navigation-drawer.html#Interaction">
* design guidelines</a> for a complete explanation of the behaviors implemented here.
*/
public class NavigationDrawerFragment extends Fragment {
/**
* Remember the position of the selected item.
*/
private static final String STATE_SELECTED_POSITION = "selected_navigation_drawer_position";
/**
* Per the design guidelines, you should show the drawer on launch until the user manually
* expands it. This shared preference tracks this.
*/
private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned";
/**
* A pointer to the current callbacks instance (the Activity).
*/
private NavigationDrawerCallbacks mCallbacks;
/**
* Helper component that ties the action bar to the navigation drawer.
*/
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private ListView mDrawerListView;
private View mFragmentContainerView;
private int mCurrentSelectedPosition = 0;
private boolean mFromSavedInstanceState;
private boolean mUserLearnedDrawer;
String myJSON;
private static final String TAG_RESULTS="result";
private static final String TAG_ID = "categories_id";
private static final String TAG_NAME = "categories_name";
JSONArray categories = null;
public NavigationDrawerFragment() {
}
Boolean InternetAvailable = false;
Seocnd detectconnection;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Read in the flag indicating whether or not the user has demonstrated awareness of the
// drawer. See PREF_USER_LEARNED_DRAWER for details.
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity());
mUserLearnedDrawer = sp.getBoolean(PREF_USER_LEARNED_DRAWER, false);
if (savedInstanceState != null) {
mCurrentSelectedPosition = savedInstanceState.getInt(STATE_SELECTED_POSITION);
mFromSavedInstanceState = true;
}
// Select either the default item (0) or the last selected item.
selectItem(mCurrentSelectedPosition);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// Indicate that this fragment would like to influence the set of actions in the action bar.
setHasOptionsMenu(true);
}
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View fragmentView = inflater.inflate(
R.layout.fragment_navigation_drawer, container, false);
/*mDrawerListView = (ListView) fragmentView.findViewById(R.id.listView);
//mDrawerListView = (ListView) inflater.inflate(
//R.layout.fragment_navigation_drawer, container, false);
mDrawerListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
});
mDrawerListView.setAdapter(new ArrayAdapter<String>(
getActionBar().getThemedContext(),
android.R.layout.simple_list_item_activated_1,
android.R.id.text1,
new String[]{
getString(R.string.title_home),
getString(R.string.title_category),
getString(R.string.title_myaccount),
getString(R.string.title_referafriend),
getString(R.string.title_about),
getString(R.string.title_privacypocity),
getString(R.string.title_shippingterms),
getString(R.string.title_contactus),
}));
mDrawerListView.setItemChecked(mCurrentSelectedPosition, true);*/
// get the listview
expListView = (ExpandableListView) fragmentView.findViewById(R.id.lvExp);
// preparing list data
//prepareListData();
detectconnection = new Seocnd(getActivity());
InternetAvailable = detectconnection.InternetConnecting();
if (InternetAvailable) {
getData();
} else {
selectItem(100);
}
return fragmentView;
}
public void getData(){
class GetDataJSON extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... params) {
DefaultHttpClient httpclient = new DefaultHttpClient(new BasicHttpParams());
HttpPost httppost = new HttpPost("http://joehamirbalabadan.com/android/android/categories.php");
// Depends on your web service
httppost.setHeader("Content-type", "application/json");
InputStream inputStream = null;
String result = null;
try {
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
inputStream = entity.getContent();
// json is UTF-8 by default
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
result = sb.toString();
} catch (Exception e) {
// Oops
}
finally {
try{if(inputStream != null)inputStream.close();}catch(Exception squish){}
}
return result;
}
@Override
protected void onPostExecute(String result){
myJSON=result;
prepareListData();
listAdapter = new ExpandableListAdapter(getActivity(), listDataHeader, listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
// Listview Group click listener
expListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
/*Toast.makeText(getActivity(),
"Group Clicked " + listDataHeader.get(groupPosition),
Toast.LENGTH_SHORT).show();*/
if(groupPosition == 1){
return false;
} else {
selectItem(groupPosition);
return true;
}
}
});
// Listview on child click listener
expListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
Toast.makeText(
getActivity(),
listDataHeader.get(groupPosition)
+ " : "
+ listDataChild.get(
listDataHeader.get(groupPosition)).get(
childPosition), Toast.LENGTH_SHORT)
.show();
return false;
}
});
}
}
GetDataJSON g = new GetDataJSON();
g.execute();
}
protected void prepareListData(){
try {
JSONObject jsonObj = new JSONObject(myJSON);
categories = jsonObj.getJSONArray(TAG_RESULTS);
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding group data
listDataHeader.add("HOME");
listDataHeader.add("CATEGORY");
listDataHeader.add("MY ACCOUNT");
listDataHeader.add("REFER A FRIEND");
listDataHeader.add("ABOUT");
listDataHeader.add("PRIVACY POLICY");
listDataHeader.add("SHIPPING TERMS");
listDataHeader.add("CONTACT US");
List<String> CATEGORY = new ArrayList<String>();
for(int i=0;i<categories.length();i++){
JSONObject c = categories.getJSONObject(i);
String categories_name = c.getString(TAG_NAME);
String categories_id = c.getString(TAG_ID);
CATEGORY.add(categories_name);
}
listDataChild.put(listDataHeader.get(1), CATEGORY); // Header, Child data
} catch (JSONException e) {
e.printStackTrace();
}
}
/*
* Preparing the list data
*/
/*private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding group data
listDataHeader.add("HOME");
listDataHeader.add("CATEGORY");
listDataHeader.add("MY ACCOUNT");
listDataHeader.add("REFER A FRIEND");
listDataHeader.add("ABOUT");
listDataHeader.add("PRIVACY POLICY");
listDataHeader.add("SHIPPING TERMS");
listDataHeader.add("CONTACT US");
// Adding child data
List<String> CATEGORY = new ArrayList<String>();
CATEGORY.add("Category 1");
CATEGORY.add("Category 2");
CATEGORY.add("Category 3");
CATEGORY.add("Category 4");
CATEGORY.add("Category 5");
listDataChild.put(listDataHeader.get(1), CATEGORY); // Header, Child data
}*/
public boolean isDrawerOpen() {
return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView);
}
/**
* Users of this fragment must call this method to set up the navigation drawer interactions.
*
* @param fragmentId The android:id of this fragment in its activity's layout.
* @param drawerLayout The DrawerLayout containing this fragment's UI.
*/
public void setUp(int fragmentId, DrawerLayout drawerLayout) {
mFragmentContainerView = getActivity().findViewById(fragmentId);
mDrawerLayout = drawerLayout;
// set a custom shadow that overlays the main content when the drawer opens
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
// set up the drawer's list view with items and click listener
ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(true);
// ActionBarDrawerToggle ties together the the proper interactions
// between the navigation drawer and the action bar app icon.
mDrawerToggle = new ActionBarDrawerToggle(
getActivity(), /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.string.navigation_drawer_open, /* "open drawer" description for accessibility */
R.string.navigation_drawer_close /* "close drawer" description for accessibility */
) {
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
if (!isAdded()) {
return;
}
getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
}
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if (!isAdded()) {
return;
}
if (!mUserLearnedDrawer) {
// The user manually opened the drawer; store this flag to prevent auto-showing
// the navigation drawer automatically in the future.
mUserLearnedDrawer = true;
SharedPreferences sp = PreferenceManager
.getDefaultSharedPreferences(getActivity());
sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER, true).apply();
}
getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
}
};
// If the user hasn't 'learned' about the drawer, open it to introduce them to the drawer,
// per the navigation drawer design guidelines.
if (!mUserLearnedDrawer && !mFromSavedInstanceState) {
mDrawerLayout.openDrawer(mFragmentContainerView);
}
// Defer code dependent on restoration of previous instance state.
mDrawerLayout.post(new Runnable() {
@Override
public void run() {
mDrawerToggle.syncState();
}
});
mDrawerLayout.setDrawerListener(mDrawerToggle);
}
private void selectItem(int position) {
mCurrentSelectedPosition = position;
if (mDrawerListView != null) {
mDrawerListView.setItemChecked(position, true);
}
if (mDrawerLayout != null) {
mDrawerLayout.closeDrawer(mFragmentContainerView);
}
if (mCallbacks != null) {
mCallbacks.onNavigationDrawerItemSelected(position);
}
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mCallbacks = (NavigationDrawerCallbacks) activity;
} catch (ClassCastException e) {
throw new ClassCastException("Activity must implement NavigationDrawerCallbacks.");
}
}
@Override
public void onDetach() {
super.onDetach();
mCallbacks = null;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(STATE_SELECTED_POSITION, mCurrentSelectedPosition);
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Forward the new configuration the drawer toggle component.
mDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// If the drawer is open, show the global app actions in the action bar. See also
// showGlobalContextActionBar, which controls the top-left area of the action bar.
if (mDrawerLayout != null && isDrawerOpen()) {
inflater.inflate(R.menu.global, menu);
showGlobalContextActionBar();
}
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
if (item.getItemId() == R.id.action_example) {
Toast.makeText(getActivity(), "Example action.", Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* Per the navigation drawer design guidelines, updates the action bar to show the global app
* 'context', rather than just what's in the current screen.
*/
private void showGlobalContextActionBar() {
ActionBar actionBar = getActionBar();
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setTitle(R.string.app_name);
}
private ActionBar getActionBar() {
return ((ActionBarActivity) getActivity()).getSupportActionBar();
}
/**
* Callbacks interface that all activities using this fragment must implement.
*/
public static interface NavigationDrawerCallbacks {
/**
* Called when an item in the navigation drawer is selected.
*/
void onNavigationDrawerItemSelected(int position);
}
}
ExpandableListAdapter.java
package com.example.administrator.mosbeau;
/**
* Created by Administrator on 9/21/2015.
*/
import android.content.Context;
import android.graphics.Typeface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
import java.util.HashMap;
import java.util.List;
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
NEW QUESTION
i change my onChildClick here is the code
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
String header = listDataHeader.get(groupPosition);
Category child = listDataChild.get(header).get(childPosition);
// child.name to get the name
// child.id to get the id
//Toast.makeText(getActivity(),"ChildNme: "+child.name+" ChildId: "+child.id, Toast.LENGTH_SHORT).show();
selectItem(1);
return false;
}
selectItem(1) will go in my MainActivity.
in this part of the code
else if (position == 1){
fragmentManager.beginTransaction()
.replace(R.id.container, CategoryFragment.newInstance())
.commit();
}
then the CategoryFragment will display.
my problem now is how to pass the ChildName and ChildId that solved in previous problem?
i want to pass the ChildName and ChildId to my CategoryFragment
package com.example.administrator.mosbeau;
import android.app.Activity;
import android.app.Fragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* Created by Administrator on 9/18/2015.
*/
public class CategoryFragment extends Fragment {
public static CategoryFragment newInstance() {
CategoryFragment fragment = new CategoryFragment();
return fragment;
}
public CategoryFragment () {
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View rootView = inflater.inflate(R.layout.categorylayout, container, false);
getActivity().invalidateOptionsMenu();
return rootView;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(2);
}
}
解决方案
First you need to create a Model class (lets say Category), that contains the name and the id:
public class Category{
public String name;
public String id;
}
Then load a list of Category object from your json:
List<Category> CATEGORY = new ArrayList<Category>();
for(int i=0;i<categories.length();i++){
JSONObject c = categories.getJSONObject(i);
Category category = new Category();
category.name = c.getString(TAG_NAME);
category.id = c.getString(TAG_ID);
CATEGORY.add(category);
}
Finally pass a HashMap<String, List<Category>> as parameter in your adapter instead of HashMap<String, List<String>>. And change your adapter methods to support Category object instead of String.
So when you call getChild() method, it will return a Category object where you can find the name and the id (Category.name , Category.id)
Update
Change your adapter class to:
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<Category>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<Category>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Category getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final Category childCategory = (Category) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childCategory.name);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
And in your click listener:
expListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
String header = listDataHeader.get(groupPosition);
Category child = listDataChild.get(header).get(childPosition);
// child.name to get the name
// child.id to get the id
Toast.makeText(getActivity(),"ChildNme: "+child.name+" ChildId: "+child.id, Toast.LENGTH_SHORT).show();
return false;
}
});
这篇关于是它可以改变expandablelistview的childPosition ID？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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