expandablelistview - Android how to init child and parent data for expandable listview -
greetings everyone. developing app want implement dynamic expandablelistview.
clientfunction.java
public class clientfunction extends appcompatactivity { string id, name, mo, city, pin, date, profmail; sessionmanager session; arraylist<hashmap<string, string>> arraylist; listview orderlist; orderlistadapter adapter; string amount, status; textview amt; linearlayout orderempty; dialog dialog; list<string> listdataheader; hashmap<string, list<string>> listdatachild; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_client_function); toolbar toolbar = (toolbar) findviewbyid(r.id.toolbar); setsupportactionbar(toolbar); final actionbar ab = getsupportactionbar(); assert ab != null; ab.setdisplayhomeasupenabled(true); ab.settitle("orders"); intent = getintent(); session = new sessionmanager(this); hashmap<string, string> user = session.getuserdetails(); profmail = user.get(sessionmanager.key_email); orderempty = (linearlayout) findviewbyid(r.id.layout_event_empty); orderempty.setvisibility(view.gone); id = i.getstringextra("clientid"); name = i.getstringextra("clientname"); city = i.getstringextra("address"); mo = i.getstringextra("mobileno"); pin = i.getstringextra("pincode"); date = i.getstringextra("date"); listdataheader = new arraylist<string>(); listdatachild = new hashmap<string, list<string>>(); new httpasynctask().execute(sessionmanager.getamateurpath() + "vieworder"); } private class httpasynctask extends asynctask<string, void, string> { @override protected string doinbackground(string... urls) { return post(urls[0]); } @override protected void onpostexecute(string result) { orderlist = (listview) findviewbyid(r.id.order_list); // pass results listviewadapter.java adapter = new orderlistadapter(clientfunction.this, arraylist); // set adapter listview orderlist.setadapter(adapter); } } public string post(string url) { inputstream inputstream; string result = ""; try { arraylist = new arraylist<hashmap<string, string>>(); httpclient httpclient = new defaulthttpclient(); httppost httppost = new httppost(url); string json = ""; jsonobject jsonobject = new jsonobject(); jsonobject.accumulate("username", profmail); jsonobject.accumulate("cid", id); json = jsonobject.tostring(); log.d("jsonstringsend", json); stringentity se = new stringentity(json); httppost.setentity(se); httppost.setheader("accept", "application/json"); httppost.setheader("content-type", "application/json"); httpresponse httpresponse = httpclient.execute(httppost); inputstream = httpresponse.getentity().getcontent(); if (inputstream != null) { result = convertinputstreamtostring(inputstream); log.d("jsonresponce", result); string add = ""; jsonarray jsonarray = new jsonarray(result); (int = 0; < jsonarray.length(); i++) { hashmap<string, string> map = new hashmap<string, string>(); jsonobject mainjj = new jsonobject((string) jsonarray.get(i)); map.put("item", mainjj.getstring("item")); map.put("total", mainjj.getstring("total")); map.put("orderno", mainjj.getstring("orderno")); map.put("quantity", mainjj.getstring("quantity")); map.put("extrarate", mainjj.getstring("extrarate")); map.put("rate", mainjj.getstring("rate")); map.put("detail", mainjj.getstring("detail")); arraylist.add(map); listdataheader.add(mainjj.getstring("item")); list<string> mainjj.getstring("item") = new arraylist<string>(); mainjj.getstring("item").add("audi"); mainjj.getstring("item").add("bmw"); mainjj.getstring("item").add("honda "); mainjj.getstring("item").add("polo"); } log.d("arraylist", arraylist.tostring()); log.d("arraylist123456789", "" + listdataheader.tostring()); } } catch (exception e) { log.d("inputstream", e.getlocalizedmessage()); } return result; } private string convertinputstreamtostring(inputstream inputstream) throws ioexception { bufferedreader bufferedreader = new bufferedreader(new inputstreamreader(inputstream)); string line = ""; string result = ""; while ((line = bufferedreader.readline()) != null) result += line; inputstream.close(); return result; } @override public boolean oncreateoptionsmenu(menu menu) { // inflate menu; adds items action bar if present. getmenuinflater().inflate(r.menu.menu_client_function, menu); // menuitem item = menu.finditem(r.id.add_order); // spannablestringbuilder builder = new spannablestringbuilder("* login"); // // replace "*" icon // builder.setspan(new imagespan(this, r.drawable.edit), 0, 1, spanned.span_exclusive_exclusive); // item.settitle(builder); return true; } @override public boolean onoptionsitemselected(menuitem item) { // handle action bar item clicks here. action bar // automatically handle clicks on home/up button, long // specify parent activity in androidmanifest.xml. switch (item.getitemid()) { case android.r.id.home: { finish(); return true; } case r.id.profile: { intent ii = new intent(clientfunction.this, viewprofile.class); ii.putextra("clientid", id); startactivity(ii); break; } case r.id.add_order: { intent ii = new intent(clientfunction.this, addorder.class); ii.putextra("clientid", id); ii.putextra("clientname", name); ii.putextra("date", date); ii.putextra("pincode", pin); ii.putextra("address", city); ii.putextra("mobileno", mo); startactivity(ii); break; } adapter = new orderlistadapter(clientfunction.this, arraylist); case r.id.add_payment: { dialog = new dialog(this); // dialog.requestwindowfeature(window.feature_no_title); dialog.setcontentview(r.layout.addpayment); dialog.settitle(html.fromhtml("<font color='#ff7f27'>add payment</font>")); // dialog.getwindow().setbackgrounddrawable(new colordrawable(color.transparent)); dialog.show(); amt = (textview) dialog.findviewbyid(r.id.amount); button close = (button) dialog.findviewbyid(r.id.save); close.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { amount = amt.gettext().tostring(); if (amount.length() != 0) { new httpasynctask1().execute(sessionmanager.getamateurpath() + "addprofessionalpayment"); } else { amt.seterror("enter amount"); } } }); break; } } return super.onoptionsitemselected(item); } private class httpasynctask1 extends asynctask<string, void, string> { @override protected string doinbackground(string... urls) { return post1(urls[0]); } @override protected void onpostexecute(string result) { if (status.equalsignorecase("success")) { amt.sethint("enter amount"); dialog.dismiss(); toast.maketext(clientfunction.this, "amount added successfully", toast.length_short).show(); } else toast.maketext(clientfunction.this, "amount added failed", toast.length_short).show(); } } public string post1(string url) { inputstream inputstream; string result = ""; try { arraylist = new arraylist<hashmap<string, string>>(); httpclient httpclient = new defaulthttpclient(); httppost httppost = new httppost(url); string json = ""; jsonobject jsonobject = new jsonobject(); jsonobject.accumulate("username", profmail); jsonobject.accumulate("clientid", id); jsonobject.accumulate("paymentrs", amount); json = jsonobject.tostring(); log.d("jsonstringsend", json); stringentity se = new stringentity(json); httppost.setentity(se); httppost.setheader("accept", "application/json"); httppost.setheader("content-type", "application/json"); httpresponse httpresponse = httpclient.execute(httppost); inputstream = httpresponse.getentity().getcontent(); if (inputstream != null) { result = convertinputstreamtostring(inputstream); log.d("jsonresponce", result); string add = ""; jsonobject mainjj = new jsonobject(result); status = mainjj.getstring("status"); } } catch (exception e) { log.d("inputstream", e.getlocalizedmessage()); } return result; } public class orderlistadapter extends baseadapter { context context; layoutinflater inflater; button send1; arraylist<hashmap<string, string>> data; int lastposition = 0; private colorgenerator mcolorgenerator = colorgenerator.material; hashmap<string, string> resultp = new hashmap<string, string>(); private displayimageoptions options; public orderlistadapter(context context, arraylist<hashmap<string, string>> arraylist) { this.context = context; data = arraylist; } @override public int getcount() { if (data.size() == 0) { orderempty.setvisibility(view.visible); orderlist.setvisibility(view.gone); } return data.size(); } @override public object getitem(int position) { return null; } @override public long getitemid(int position) { return 0; } @override public view getview(final int position, view convertview, viewgroup parent) { inflater = (layoutinflater) context.getsystemservice(context.layout_inflater_service); view itemview = inflater.inflate(r.layout.inflate_listoforder, parent, false); resultp = data.get(position); textview iname = (textview) itemview.findviewbyid(r.id.iname); textview iid = (textview) itemview.findviewbyid(r.id.iid); textview iqty = (textview) itemview.findviewbyid(r.id.iqty); textview itotal = (textview) itemview.findviewbyid(r.id.itotal); iname.settext("item name: " + resultp.get("item")); iid.settext("item id: " + resultp.get("orderno")); iqty.settext("itemquantity: " + resultp.get("quantity")); itotal.settext("itemtotal: " + resultp.get("total")); itemview.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { resultp = data.get(position); intent ii = new intent(clientfunction.this, vieworder.class); ii.putextra("item", resultp.get("item")); ii.putextra("clientid", id); ii.putextra("orderno", resultp.get("orderno")); ii.putextra("quantity", resultp.get("quantity")); ii.putextra("total", resultp.get("total")); ii.putextra("extrarate", resultp.get("extrarate")); ii.putextra("rate", resultp.get("rate")); ii.putextra("detail", resultp.get("detail")); startactivity(ii); } }); animation animation = animationutils.loadanimation(context, (position > lastposition) ? r.anim.up_from_bottom : r.anim.down_from_top); itemview.startanimation(animation); lastposition = position; return itemview; } } } i don't know how add data in list<string> listdataheader , hashmap<string, list<string>> listdatachild.
i added data in listdataheader, don't know how add data dynamically listdatachild.
i adding data in listdatachild follows
list<string> mainjj.getstring("item") = new arraylist<string>(); mainjj.getstring("item").add("audi"); mainjj.getstring("item").add("bmw"); mainjj.getstring("item").add("honda "); mainjj.getstring("item").add("polo"); but isn't working. please me solution. can proceed coding. in advance.
your code quit confusing, here tell how add data (static example) both expandablelistview header , child.
//function return map add in adapter public static map<string, list<string>> getdata() { map<string, list<string>> expandablelist = new treemap<>(); list<string> child1 = new arraylist<string>(); child1.add("child data......"); list<string> child2 = new arraylist<string>(); child2.add("child data......"); list<string> child3 = new arraylist<string>(); child3.add("child data........"); expandablelist.put("header-1", child1); expandablelistdetail.put("header-2",child2); expandablelistdetail.put("header-3",child3); expandablelistdetail.put("header-4",child4); return expandablelistdetail; } here adding own data , dynamic behaviour have add data using loop "expandabllist" & "child" list.
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