5
Ho una vista elenco espansa con caselle di controllo nei nodi parent e articoli secondari. tutti i dati provengono dal servizio web quindi è dinamico.come ottenere l'id delle caselle di controllo in un elenco ingrandito?
immagine allegata:
Ora sulla voce di menu del tasto voglio prendere tutto lo stato casella di controllo. per favore guidami come posso ottenere l'id delle caselle di controllo usate in esso.
codiceallegato:
/**
*
*/
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();
}
}
}
e l'adattatore classe:
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 è lo stesso bambino.
per favore indicami come posso ottenere l'id delle caselle di controllo perché sulla voce di menu selezionata devo fare le operazioni di base su quello.
Modifica: ho provato a setTag() e getTag(). ma ora la vista elenco espandibile mostra un comportamento strano. quando seleziono una casella di controllo ed espandi un altro gruppo, tutte le caselle chekbok sono impostate sui valori predefiniti. Cosa devo fare in questo caso. non conosco il motivo per cui non sta salvando lo stato. Io sono faceing stesso problema come Strange behaviour in Expandablelistview - Android Plz guidare
bello vedere risolvere il proprio problema – Trikaldarshi
buon lavoro @Rajiv –
grazie a @Photon e Avi –