5
Mam rozszerzony widok listy, które mają pola wyboru w węzłach nadrzędnych, a także elementach potomnych. wszystkie dane pochodzą z usługi internetowej, więc jej dynamika.Jak uzyskać identyfikator pól wyboru w widoku rozszerzonej listy?
Obraz załączeniu:
Teraz na pozycji menu kliknij chcę pobrać cały stan pola wyboru. proszę wskazać mi, w jaki sposób mogę uzyskać identyfikator pól używanych w nim.
kod dołączony:
/**
*
*/
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();
}
}
}
A adapter klasa:
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 jest taka sama jak dziecko.
Proszę, poprowadź mnie, jak mogę uzyskać identyfikatory because, ponieważ w wybranym punkcie menu muszę wykonywać podstawowe czynności.
Edytuj: próbuję ustawić setTag() i getTag(). ale teraz rozwijany widok listy pokazuje dziwne zachowanie. kiedy zaznaczam pole wyboru i rozwijam kolejną grupę, wszystkie pola chekbok są ustawione domyślnie. Co muszę zrobić w tym przypadku. nie znam odpowiedzi, dlaczego nie ratuje ona stanu. jestem faceing sam problem jak Strange behaviour in Expandablelistview - Android Plz poprowadzi
dobrze widzieć, jak rozwiązać swój problem – Trikaldarshi
Dobra robota @Rajiv –
thanks @Photon and Avi –