如何获取扩展列表视图项目中的复选框的ID？ [英] how to get id of check boxes in expanded list view item?
本文介绍了如何获取扩展列表视图项目中的复选框的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
我有一个扩展列表视图，在父节点以及子项目中有复选框。
所有数据来自web服务，因此其动态。
附加的图片：
现在在菜单项上点击我想获取所有复选框状态。
附加的代码：
/ **
*
* /
public class Object_SecurityActivity extends ExpandableListActivity {
@ Override
public boolean onChildClick（ExpandableListView parent，View v，
int groupPosition，int childPosition，long id）{
// TODO自动生成方法存根
return super.onChildClick v，groupPosition，childPosition，id）;
}
@Override
public void onContentChanged（）{
// TODO自动生成方法存根
super.onContentChanged（）;
}
private AndroidClientEntity obj_android_client;
private static final String LOG_TAG =ElistCBox2;
private String username，password，clientname;
@Override
public void onCreate（Bundle icicle）{
super.onCreate（icicle）;
//setContentView (R.layout.main）;
Intent security_intent = getIntent（）;
String id = security_intent.getStringExtra（id）;
obj_android_client =（AndroidClientEntity）getApplicationContext（）;
username = obj_android_client.getUsername（）;
password = obj_android_client.getPassword（）;
clientname = obj_android_client.getClientName（）;
new Securityasync（）。execute（username，password，clientname，id）;
}
类Securityasync扩展AsyncTask< String，String，String> {
String sesurity_response = null;
ProgressDialog对话框;
private Expandable_list_Adapter expListAdapter;
@Override
protected String doInBackground（String ... params）{
if（（isOnline（Object_SecurityActivity.this）.equals（true）））{
Security_service security_obj = new Security_service（）;
try {
sesurity_response = security_obj.getUsersRoles（params [0]，
params [1]，params [2]，params [3]）;
} catch（IllegalStateException e）{
e.printStackTrace（）;
} catch（JSONException e）{
e.printStackTrace（）;
} catch（IOException e）{
e.printStackTrace（）;
}
}
return null;
}
@Override
protected void onPostExecute（String result）{
if（isOnline（Object_SecurityActivity.this）.equals（true））{
setContentView（R.layout.layout_expandable_listview）;
ArrayList< String> groupNames = new ArrayList< String>（）;
ArrayList< String> sub = new ArrayList< String>（）;
ArrayList< ArrayList< String>> child = new ArrayList< ArrayList< String>>（）;
ArrayList< String> sub_id = new ArrayList< String>（）;
ArrayList< String> objrid = new ArrayList< String>（）;
try {
JSONArray json = new JSONArray（ssurity_response）;
// JSONArray json_child = new JSONArray（sesurity_response）;
for（int i = 0; i
if（json_obj.getString（PRid）。equalsIgnoreCase（0））{
String ObjectRid = json_obj.getString（ObjectRid）;
int m = 0;
objrid.add（m，ObjectRid）;
m ++;
groupNames.add（json_obj.getString（Name））;
for（int j = 0; j< json.length（）; j ++）{
JSONObject json_child = json.getJSONObject（j）;
if（ObjectRid.equalsIgnoreCase（json_child
.getString（PRid）））{
int n = 0;
sub_id.add（n，json_child.getString（ObjectRid））;
sub.add（json_child.getString（Name））;
}
}
child.add（sub）;
}
}
expListAdapter = new Expandable_list_Adapter（getBaseContext（），
groupNames，child）;
setListAdapter（expListAdapter）;
Log.e（size in error，son+ json.length（））;
} catch（JSONException e）{
Log.e（，，e）;
Toast.makeText（getBaseContext（），parsing error，
Toast.LENGTH_LONG）.show（）;
}
Log.e（sizeof list，+ sub_id.size（））;
迭代器itr = objrid.iterator（）;
while（itr.hasNext（））{
Log.e（id，value+ itr.next（））;
}
}
}
@Override
protected void onPreExecute（）{
super.onPreExecute（）;
}
}
}
和适配器类：
public class Expandable_list_Adapter extends BaseExpandableListAdapter implements OnCheckedChangeListener {
private Context context;
private ArrayList< String> groupNames;
private ArrayList< ArrayList< String>>儿童;
private LayoutInflater充气器;
public Expandable_list_Adapter（Context context，
ArrayList< String> groupNames，
ArrayList< ArrayList< String>> child）{
this.context = context;
this.groupNames = groupNames;
this.child = child;
inflater = LayoutInflater.from（context）;
}
public Object getChild（int groupPosition，int childPosition）{
return child.get（groupPosition）.get（childPosition）;
}
public long getChildId（int groupPosition，int childPosition）{
return（long）（groupPosition * 1024 + childPosition）; //每组最大1024个孩子
}
public查看getChildView（int groupPosition，int childPosition，boolean isLastChild，View convertView，ViewGroup parent）{
View v = null;
if（convertView！= null）
v = convertView;
else
v = inflater.inflate（R.layout.child_row，parent，false）;
String c =（String）getChild（groupPosition，childPosition）;
TextView color =（TextView）v.findViewById（R.id.childname）;
if（color！= null）
color.setText（c）;
CheckBox cb =（CheckBox）v.findViewById（R.id.check1）;
//cb.setChecked(false）;
cb.setOnCheckedChangeListener（this）;
return v;
}
public int getChildrenCount（int groupPosition）{
return child.get（groupPosition）.size（）;
}
public Object getGroup（int groupPosition）{
return groupNames.get（groupPosition）;
}
public int getGroupCount（）{
return groupNames.size（）;
}
public long getGroupId（int groupPosition）{
return（long）（groupPosition * 1024）; //与getChildId一致
}
public View getGroupView（int groupPosition，boolean isExpanded，View convertView，ViewGroup parent）{
View v = null;
if（convertView！= null）
v = convertView;
else
v = inflater.inflate（R.layout.group_row，parent，false）;
String gt =（String）getGroup（groupPosition）;
TextView colorGroup =（TextView）v.findViewById（R.id.childname）;
if（gt！= null）
colorGroup.setText（gt）;
CheckBox cb =（CheckBox）v.findViewById（R.id.check2）;
cb.setChecked（false）;
return v;
}
public boolean hasStableIds（）{
return true;
}
public boolean isChildSelectable（int groupPosition，int childPosition）{
Log.e（is group checked，group+ groupPosition）;
Log.e（selectable，has+ childPosition）;
return true;
}
public void onGroupCollapsed（int groupPosition）{}
public void onGroupExpanded（int groupPosition）{}
public void onCheckedChanged（CompoundButton buttonView， boolean isChecked）{
// TODO自动生成方法存根
}
public void isChecked（）{
}
}
Child.xml
<？xml version =1.0encoding =utf-8？>
< RelativeLayout xmlns：android =http://schemas.android.com/apk/res/android
android：orientation =horizontal
android：background =＃21415A
android：layout_width =fill_parent
android：layout_height =wrap_content>
&TextView android：id =@ + id / childname
android：paddingLeft =50px
android：focusable =false
android： textSize =14px
android：textStyle =italic
android：layout_width =wrap_content
android：layout_height =wrap_content/>
&TextView android：id =@ + id / rgb
android：focusable =false
android：textSize =14px
android： textStyle =italic
android：layout_width =100px
android：layout_height =wrap_content/>
< CheckBox
android：id =@ + id / check1
android：layout_width =wrap_content
android：layout_height =wrap_content
android：layout_alignParentRight =true
android：layout_alignParentTop =true
android：focusable =false/>
< / RelativeLayout>
parent.xml与child相同。
请指导我如何获得复选框的ID，因为在菜单项选择我必须做操作基础上。
编辑：我试图setTag和getTag（）。但现在可扩展列表视图显示奇怪的行为。当我选择一个复选框并展开另一个组所有chekbok框设置为默认。
在这种情况下我要做的。我不知道resion为什么它不保存状态。
i我面临着与 Expandablelistview中的奇怪行为 - Android 相同的问题
Plz指南
解决方案
终于解决了我的问题。
适配器类：
public class Expandable_list_Adapter extends BaseExpandableListAdapter implements OnCheckedChangeListener {
private Context context ;
private ArrayList< String> groupNames;
private ArrayList< ArrayList< String>>儿童;
private LayoutInflater充气器;
public Expandable_list_Adapter（Context context，
ArrayList< String> groupNames，
ArrayList< ArrayList< String>> child）{
AndroidClientEntity.objHasmap.clear ;
this.context = context;
this.groupNames = groupNames;
this.child = child;
inflater = LayoutInflater.from（context）;
}
public Object getChild（int groupPosition，int childPosition）{
return child.get（groupPosition）.get（childPosition）;
}
public long getChildId（int groupPosition，int childPosition）{
return（long）（groupPosition * 1024 + childPosition）; //每组最大1024个孩子
}
public查看getChildView（int groupPosition，int childPosition，boolean isLastChild，View convertView，ViewGroup parent）{
View v = null;
if（convertView！= null）
v = convertView;
else
v = inflater.inflate（R.layout.child_row，parent，false）;
String c =（String）getChild（groupPosition，childPosition）;
Log.e（hiiiiiiiiiiiiiiiiiiiiiiiiiiii，c）;
TextView label =（TextView）v.findViewById（R.id.childname）;
if（label！= null）
label.setText（c）;
CheckBox cb =（CheckBox）v.findViewById（R.id.check1）;
//cb.setId（childPosition）;
cb.setTag（groupPosition +child+ childPosition）;
cb.setChecked（false）;
if（AndroidClientEntity.objHasmap.get（groupPosition +child+ childPosition）！= null）
{
cb.setChecked（AndroidClientEntity.objHasmap.get（groupPosition +child+ childPosition）） ;
}
// cb.setOnCheckedChangeListener（this）;
return v;
}
public int getChildrenCount（int groupPosition）{
return child.get（groupPosition）.size（）;
}
public Object getGroup（int groupPosition）{
return groupNames.get（groupPosition）;
}
public int getGroupCount（）{
return groupNames.size（）;
}
public long getGroupId（int groupPosition）{
return（long）（groupPosition * 1024）; //与getChildId一致
}
public View getGroupView（int groupPosition，boolean isExpanded，View convertView，ViewGroup parent）{
View v = null;
if（convertView！= null）
v = convertView;
else
v = inflater.inflate（R.layout.group_row，parent，false）;
String gt =（String）getGroup（groupPosition）;
TextView colorGroup =（TextView）v.findViewById（R.id.childname）;
if（gt！= null）
colorGroup.setText（gt）;
CheckBox cb =（CheckBox）v.findViewById（R.id.check2）;
cb.setTag（groupPosition +cbgroup）;
//Object_SecurityActivityobjHasmap.put(groupPosition+\"cbgroup，false）;
cb.setChecked（false）;
return v;
}
public boolean hasStableIds（）{
return true;
}
public boolean isChildSelectable（int groupPosition，int childPosition）{
Log.e（is group checked，group+ groupPosition）;
Log.e（selectable，has+ childPosition）;
return true;
}
public void onGroupCollapsed（int groupPosition）{}
public void onGroupExpanded（int groupPosition）{}
public void onCheckedChanged（CompoundButton buttonView， boolean isChecked）{
// TODO自动生成方法存根
}
public void isChecked（）{
}
}
并且Activity类别：
public class Object_SecurityActivity extends ExpandableListActivity implements OnClickListener {
@Override
public boolean onChildClick（ExpandableListView parent，View v，
int groupPosition，int childPosition，long id）{
// TODO自动生成的方法存根
CheckBox cb =（CheckBox）v.findViewWithTag（groupPosition +child+ childPosition）;
// Boolean state = objHasmap.get（groupPosition +child+ childPosition）;
cb.toggle（）;
if（cb.isChecked（））
{
AndroidClientEntity.objHasmap.put（groupPosition +child+ childPosition，true）;
} else
{AndroidClientEntity.objHasmap.remove（groupPosition +child+ childPosition）;
}
//在集合中添加值
//cb.setEnabled(state）;
return super.onChildClick（parent，v，groupPosition，childPosition，id）;
}
private AndroidClientEntity obj_android_client;
private static final String LOG_TAG =ElistCBox2;
private String username，password，clientname;
@Override
public void onCreate（Bundle icicle）{
super.onCreate（icicle）;
//setContentView (R.layout.main）;
Intent security_intent = getIntent（）;
String id = secure_intent.getStringExtra（id）;
obj_android_client =（AndroidClientEntity）getApplicationContext（）;
username = obj_android_client.getUsername（）;
password = obj_android_client.getPassword（）;
clientname = obj_android_client.getClientName（）;
new Securityasync（）。execute（username，password，clientname，id）;
}
public boolean onCreateOptionsMenu（菜单菜单）{
new MenuInflater（getApplication（））。inflate（R.menu.context_menu_security，
menu ）;
return（super.onPrepareOptionsMenu（menu））;
}
public boolean onOptionsItemSelected（MenuItem item）{
// startDownload（）;
if（item.getItemId（）== R.id.setsecurity）{
// code here
Log.e（hiiiiiiiiiiiiiiii，scejkkl yu menu pressed）;
}
return（super.onOptionsItemSelected（item））;
}
类Securityisync扩展AsyncTask< String，String，String> {
String sesurity_response = null;
ProgressDialog对话框;
private Expandable_list_Adapter expListAdapter;
@Override
protected String doInBackground（String ... params）{
if（（isOnline（Object_SecurityActivity.this）.equals（true）））{
Security_service security_obj = new Security_service（）;
try {
sesurity_response = security_obj.getUsersRoles（params [0]，
params [1]，params [2]，params [3]）;
} catch（IllegalStateException e）{
e.printStackTrace（）;
} catch（JSONException e）{
e.printStackTrace（）;
} catch（IOException e）{
e.printStackTrace（）;
}
}
return null;
}
@Override
protected void onPostExecute（String result）{
if（isOnline（Object_SecurityActivity.this）.equals（true））{
setContentView（R.layout.layout_expandable_listview）;
ArrayList< String> groupNames = new ArrayList< String>（）;
ArrayList< String> sub = new ArrayList< String>（）;
ArrayList< ArrayList< String>> child = new ArrayList< ArrayList< String>>（）;
ArrayList< String> sub_id = new ArrayList< String>（）;
ArrayList< String> objrid = new ArrayList< String>（）;
try {
JSONArray json = new JSONArray（ssurity_response）;
// JSONArray json_child = new JSONArray（sesurity_response）;
for（int i = 0; i
if（json_obj.getString（PRid）。equalsIgnoreCase（0））{
String ObjectRid = json_obj.getString（ObjectRid）;
int m = 0;
objrid.add（m，ObjectRid）;
m ++;
groupNames.add（json_obj.getString（Name））;
for（int j = 0; j< json.length（）; j ++）{
JSONObject json_child = json.getJSONObject（j）;
if（ObjectRid.equalsIgnoreCase（json_child
.getString（PRid）））{
int n = 0;
sub_id.add（n，json_child.getString（ObjectRid））;
sub.add（json_child.getString（Name））;
}
}
child.add（sub）;
}
}
expListAdapter = new Expandable_list_Adapter（getBaseContext（），
groupNames，child）;
setListAdapter（expListAdapter）;
Log.e（size in error，son+ json.length（））;
} catch（JSONException e）{
Log.e（，，e）;
Toast.makeText（getBaseContext（），parsing error，
Toast.LENGTH_LONG）.show（）;
}
Log.e（sizeof list，+ sub_id.size（））;
迭代器itr = objrid.iterator（）;
while（itr.hasNext（））{
Log.e（id，value+ itr.next（））;
}
}
}
@Override
protected void onPreExecute（）{
super.onPreExecute（）;
}
}
public void onClick（View v）{
// TODO自动生成方法存根
}
}
感谢pallavi，amit rai和Photon 。
I have an expanded list view that have check boxes in parent nodes as well as child items. all data comes from web service so its dynamic.
Image attached:
Now on menu item click i want to fetch all check box status . please guide me how can i get id of check boxes used in it.
code attached:
/**
*
*/
public class Object_SecurityActivity extends ExpandableListActivity {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
return super.onChildClick(parent, v, groupPosition, childPosition, id);
}
@Override
public void onContentChanged() {
// TODO Auto-generated method stub
super.onContentChanged();
}
private AndroidClientEntity obj_android_client;
private static final String LOG_TAG = "ElistCBox2";
private String username, password, clientname;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
//setContentView(R.layout.main);
Intent security_intent = getIntent();
String id = security_intent.getStringExtra("id");
obj_android_client = (AndroidClientEntity) getApplicationContext();
username = obj_android_client.getUsername();
password = obj_android_client.getPassword();
clientname = obj_android_client.getClientName();
new Securityasync().execute(username, password, clientname, id);
}
class Securityasync extends AsyncTask<String, String, String> {
String sesurity_response = null;
ProgressDialog dialog;
private Expandable_list_Adapter expListAdapter;
@Override
protected String doInBackground(String... params) {
if ((isOnline(Object_SecurityActivity.this).equals("true"))) {
Security_service security_obj = new Security_service();
try {
sesurity_response = security_obj.getUsersRoles(params[0],
params[1], params[2], params[3]);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
@Override
protected void onPostExecute(String result) {
if (isOnline(Object_SecurityActivity.this).equals("true")) {
setContentView(R.layout.layout_expandable_listview);
ArrayList<String> groupNames = new ArrayList<String>();
ArrayList<String> sub = new ArrayList<String>();
ArrayList<ArrayList<String>> child = new ArrayList<ArrayList<String>>();
ArrayList<String> sub_id = new ArrayList<String>();
ArrayList<String> objrid = new ArrayList<String>();
try {
JSONArray json = new JSONArray(sesurity_response);
// JSONArray json_child=new JSONArray(sesurity_response);
for (int i = 0; i < json.length(); i++) {
JSONObject json_obj = json.getJSONObject(i);
if (json_obj.getString("PRid").equalsIgnoreCase("0")) {
String ObjectRid = json_obj.getString("ObjectRid");
int m=0;
objrid.add(m,ObjectRid);
m++;
groupNames.add(json_obj.getString("Name"));
for (int j = 0; j < json.length(); j++) {
JSONObject json_child = json.getJSONObject(j);
if (ObjectRid.equalsIgnoreCase(json_child
.getString("PRid"))) {
int n=0;
sub_id.add(n,json_child.getString("ObjectRid"));
sub.add(json_child.getString("Name"));
}
}
child.add(sub);
}
}
expListAdapter = new Expandable_list_Adapter(getBaseContext(),
groupNames, child);
setListAdapter(expListAdapter);
Log.e("size in error", "son " + json.length());
} catch (JSONException e) {
Log.e("", "", e);
Toast.makeText(getBaseContext(), "parsing error",
Toast.LENGTH_LONG).show();
}
Log.e("sizeof list", ""+sub_id.size());
Iterator itr=objrid.iterator();
while(itr.hasNext()){
Log.e("id","value "+itr.next());
}
}
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
}
}
And adapter class:
public class Expandable_list_Adapter extends BaseExpandableListAdapter implements OnCheckedChangeListener {
private Context context;
private ArrayList<String> groupNames;
private ArrayList<ArrayList<String>> child;
private LayoutInflater inflater;
public Expandable_list_Adapter(Context context,
ArrayList<String> groupNames,
ArrayList<ArrayList<String>> child ) {
this.context = context;
this.groupNames= groupNames;
this.child = child;
inflater = LayoutInflater.from( context );
}
public Object getChild(int groupPosition, int childPosition) {
return child.get( groupPosition ).get( childPosition );
}
public long getChildId(int groupPosition, int childPosition) {
return (long)( groupPosition*1024+childPosition ); // Max 1024 children per group
}
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
View v = null;
if( convertView != null )
v = convertView;
else
v = inflater.inflate(R.layout.child_row, parent, false);
String c = (String)getChild( groupPosition, childPosition );
TextView color = (TextView)v.findViewById( R.id.childname );
if( color != null )
color.setText( c );
CheckBox cb = (CheckBox)v.findViewById( R.id.check1 );
//cb.setChecked(false);
cb.setOnCheckedChangeListener(this);
return v;
}
public int getChildrenCount(int groupPosition) {
return child.get( groupPosition ).size();
}
public Object getGroup(int groupPosition) {
return groupNames.get( groupPosition );
}
public int getGroupCount(){
return groupNames.size();
}
public long getGroupId(int groupPosition) {
return (long)( groupPosition*1024 ); // To be consistent with getChildId
}
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
View v = null;
if( convertView != null )
v = convertView;
else
v = inflater.inflate(R.layout.group_row, parent, false);
String gt = (String)getGroup( groupPosition );
TextView colorGroup = (TextView)v.findViewById( R.id.childname );
if( gt != null )
colorGroup.setText( gt );
CheckBox cb = (CheckBox)v.findViewById( R.id.check2 );
cb.setChecked(false);
return v;
}
public boolean hasStableIds() {
return true;
}
public boolean isChildSelectable(int groupPosition, int childPosition) {
Log.e("is group checked","group "+groupPosition);
Log.e("selectable","has" +childPosition);
return true;
}
public void onGroupCollapsed (int groupPosition) {}
public void onGroupExpanded(int groupPosition) {}
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
}
public void isChecked(){
}
}
Child.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:background="#21415A"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView android:id="@+id/childname"
android:paddingLeft="50px"
android:focusable="false"
android:textSize="14px"
android:textStyle="italic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView android:id="@+id/rgb"
android:focusable="false"
android:textSize="14px"
android:textStyle="italic"
android:layout_width="100px"
android:layout_height="wrap_content"/>
<CheckBox
android:id="@+id/check1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:focusable="false" />
</RelativeLayout>
parent.xml is same as child.
please guide me how can i get ids of check boxes because on menu item selected i have to do operation basics on that.
Edit: i tried to setTag() and getTag() . but now expandable list view is showing strange behavior. when i select an checkbox and expand another group all chekbok boxes is set to default. What i have to do in this case. i dont know the resion why it is not saving state. i am faceing same problem as Strange behaviour in Expandablelistview - Android Plz guide
解决方案
finally solved my problem. Adapter class:
public class Expandable_list_Adapter extends BaseExpandableListAdapter implements OnCheckedChangeListener {
private Context context;
private ArrayList<String> groupNames;
private ArrayList<ArrayList<String>> child;
private LayoutInflater inflater;
public Expandable_list_Adapter(Context context,
ArrayList<String> groupNames,
ArrayList<ArrayList<String>> child ) {
AndroidClientEntity.objHasmap.clear();
this.context = context;
this.groupNames= groupNames;
this.child = child;
inflater = LayoutInflater.from( context );
}
public Object getChild(int groupPosition, int childPosition) {
return child.get( groupPosition ).get( childPosition );
}
public long getChildId(int groupPosition, int childPosition) {
return (long)( groupPosition*1024+childPosition ); // Max 1024 children per group
}
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
View v = null;
if( convertView != null )
v = convertView;
else
v = inflater.inflate(R.layout.child_row, parent, false);
String c = (String)getChild( groupPosition, childPosition );
Log.e("hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii",c);
TextView label = (TextView)v.findViewById( R.id.childname );
if( label != null )
label.setText( c );
CheckBox cb = (CheckBox)v.findViewById( R.id.check1);
//cb.setId(childPosition);
cb.setTag(groupPosition+"child"+childPosition);
cb.setChecked(false);
if(AndroidClientEntity.objHasmap.get(groupPosition+"child"+childPosition)!=null)
{
cb.setChecked(AndroidClientEntity.objHasmap.get(groupPosition+"child"+childPosition));
}
// cb.setOnCheckedChangeListener(this);
return v;
}
public int getChildrenCount(int groupPosition) {
return child.get( groupPosition ).size();
}
public Object getGroup(int groupPosition) {
return groupNames.get( groupPosition );
}
public int getGroupCount(){
return groupNames.size();
}
public long getGroupId(int groupPosition) {
return (long)( groupPosition*1024 ); // To be consistent with getChildId
}
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
View v = null;
if( convertView != null )
v = convertView;
else
v = inflater.inflate(R.layout.group_row, parent, false);
String gt = (String)getGroup( groupPosition );
TextView colorGroup = (TextView)v.findViewById( R.id.childname );
if( gt != null )
colorGroup.setText( gt );
CheckBox cb = (CheckBox)v.findViewById( R.id.check2 );
cb.setTag(groupPosition+"cbgroup");
//Object_SecurityActivityobjHasmap.put(groupPosition+"cbgroup", false);
cb.setChecked(false);
return v;
}
public boolean hasStableIds() {
return true;
}
public boolean isChildSelectable(int groupPosition, int childPosition) {
Log.e("is group checked","group "+groupPosition);
Log.e("selectable","has" +childPosition);
return true;
}
public void onGroupCollapsed (int groupPosition) {}
public void onGroupExpanded(int groupPosition) {}
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
}
public void isChecked(){
}
}
And Activity class:
public class Object_SecurityActivity extends ExpandableListActivity implements OnClickListener{
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
CheckBox cb=(CheckBox) v.findViewWithTag(groupPosition+"child"+childPosition);
//Boolean state=objHasmap.get(groupPosition+"child"+childPosition);
cb.toggle();
if(cb.isChecked())
{
AndroidClientEntity.objHasmap.put(groupPosition+"child"+childPosition,true );
}else
{AndroidClientEntity.objHasmap.remove(groupPosition+"child"+childPosition);
}
//add value in set
//cb.setEnabled(state);
return super.onChildClick(parent, v, groupPosition, childPosition, id);
}
private AndroidClientEntity obj_android_client;
private static final String LOG_TAG = "ElistCBox2";
private String username, password, clientname;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
//setContentView(R.layout.main);
Intent security_intent = getIntent();
String id = security_intent.getStringExtra("id");
obj_android_client = (AndroidClientEntity) getApplicationContext();
username = obj_android_client.getUsername();
password = obj_android_client.getPassword();
clientname = obj_android_client.getClientName();
new Securityasync().execute(username, password, clientname, id);
}
public boolean onCreateOptionsMenu(Menu menu) {
new MenuInflater(getApplication()).inflate(R.menu.context_menu_security,
menu);
return (super.onPrepareOptionsMenu(menu));
}
public boolean onOptionsItemSelected(MenuItem item) {
// startDownload();
if (item.getItemId() == R.id.setsecurity) {
//code here
Log.e("hiiiiiiiiiiiiiiii","scejkkl yu menu pressed");
}
return (super.onOptionsItemSelected(item));
}
class Securityasync extends AsyncTask<String, String, String> {
String sesurity_response = null;
ProgressDialog dialog;
private Expandable_list_Adapter expListAdapter;
@Override
protected String doInBackground(String... params) {
if ((isOnline(Object_SecurityActivity.this).equals("true"))) {
Security_service security_obj = new Security_service();
try {
sesurity_response = security_obj.getUsersRoles(params[0],
params[1], params[2], params[3]);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
@Override
protected void onPostExecute(String result) {
if (isOnline(Object_SecurityActivity.this).equals("true")) {
setContentView(R.layout.layout_expandable_listview);
ArrayList<String> groupNames = new ArrayList<String>();
ArrayList<String> sub = new ArrayList<String>();
ArrayList<ArrayList<String>> child = new ArrayList<ArrayList<String>>();
ArrayList<String> sub_id = new ArrayList<String>();
ArrayList<String> objrid = new ArrayList<String>();
try {
JSONArray json = new JSONArray(sesurity_response);
// JSONArray json_child=new JSONArray(sesurity_response);
for (int i = 0; i < json.length(); i++) {
JSONObject json_obj = json.getJSONObject(i);
if (json_obj.getString("PRid").equalsIgnoreCase("0")) {
String ObjectRid = json_obj.getString("ObjectRid");
int m=0;
objrid.add(m,ObjectRid);
m++;
groupNames.add(json_obj.getString("Name"));
for (int j = 0; j < json.length(); j++) {
JSONObject json_child = json.getJSONObject(j);
if (ObjectRid.equalsIgnoreCase(json_child
.getString("PRid"))) {
int n=0;
sub_id.add(n,json_child.getString("ObjectRid"));
sub.add(json_child.getString("Name"));
}
}
child.add(sub);
}
}
expListAdapter = new Expandable_list_Adapter(getBaseContext(),
groupNames, child);
setListAdapter(expListAdapter);
Log.e("size in error", "son " + json.length());
} catch (JSONException e) {
Log.e("", "", e);
Toast.makeText(getBaseContext(), "parsing error",
Toast.LENGTH_LONG).show();
}
Log.e("sizeof list", ""+sub_id.size());
Iterator itr=objrid.iterator();
while(itr.hasNext()){
Log.e("id","value "+itr.next());
}
}
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
}
public void onClick(View v) {
// TODO Auto-generated method stub
}
}
Thanks to pallavi,amit rai and Photon.
这篇关于如何获取扩展列表视图项目中的复选框的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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