android - ListView displaying same data -
i have large json array. reading data json array , storing in list view, list view repeats same data.
i.e last data json instead of displaying data.
here code.
public class historyactivity extends appcompatactivity { private toolbar toolbar; string strserverresponse = null; progressdialog ndialog; pojo pojo; arraylist<pojo> history; historyadapter myadapter; listview list; public string date, intime, outtime, inlat, inlong; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_history); toolbar = (toolbar) findviewbyid(r.id.app_bar); toolbar.settitle("history"); setsupportactionbar(toolbar); getsupportactionbar().setdisplayhomeasupenabled(true); list = (listview) findviewbyid(r.id.historylist); history = new arraylist<pojo>(); new netcheck().execute(); } private class netcheck extends asynctask<void, void, void> { @override protected void onpostexecute(void result) { // todo auto-generated method stub super.onpostexecute(result); ndialog.dismiss(); // todo auto-generated method stub myadapter = new historyadapter(historyactivity.this, history); list.setadapter(myadapter); } @override protected void doinbackground(void... params) { // todo auto-generated method stub try { httpclient httpclient = new defaulthttpclient(); httppost httprequest = new httppost( "http://myurl"); httprequest.setheader("content-type", "application/json"); sharedpreferences mmm = getsharedpreferences( "mypref", mode_private); string logempid = mmm.getstring("id", null); jsonobject json = new jsonobject(); json.put("empid", logempid); log.e("json object", json.tostring()); stringentity se = new stringentity(json.tostring()); se.setcontentencoding("utf-8"); se.setcontenttype("application/json"); httprequest.setentity(se); httpresponse httpres = httpclient.execute(httprequest); java.io.inputstream inputstream = httpres.getentity() .getcontent(); inputstreamreader inputstreamreader = new inputstreamreader( inputstream); bufferedreader reader = new bufferedreader(inputstreamreader); stringbuilder sb = new stringbuilder(); string line = null; while ((line = reader.readline()) != null) { sb.append(line + "\n"); } inputstream.close(); strserverresponse = sb.tostring(); log.e("server response", "" + strserverresponse.tostring()); if (strserverresponse != null) { try { jsonarray arr = new jsonarray(strserverresponse); (int k = 0; k < arr.length(); k++) { jsonobject jsonobj1 = arr.getjsonobject(k); pojo = new pojo(); date = jsonobj1.optstring("login_date"); intime = jsonobj1.optstring("login_time"); outtime = jsonobj1.optstring("logout_time"); log.e("login time server",""+intime); log.e("login out server",""+outtime); log.e("login date server",""+date); pojo.setdate(date); pojo.setlogintime(intime); pojo.setlogouttime(outtime); jsonarray subarraylat = jsonobj1.getjsonarray("lati_long"); (int = 0; < subarraylat.length(); i++) { string lat = subarraylat.getjsonobject(i).getstring("latitude").tostring(); string loong = subarraylat.getjsonobject(i).getstring("longitude").tostring(); log.e("jsonarray lat", "" + lat); log.e("jsonarray longg", "" + loong); pojo.setlat(lat); pojo.setlong(loong); } history.add(pojo); } } catch (jsonexception e) { e.printstacktrace(); } } here adapter.
public class historyadapter extends baseadapter { private context activity; textview tv_date; textview tv_logintime; textview tv_logouttime; textview tv_details; pojo pojo; arraylist<pojo> list; private arraylist<pojo> arraylist = null; public static layoutinflater inflater; private context context; public historyadapter(context context) { this.context = context; } public historyadapter(context a, arraylist<pojo> history) { // todo auto-generated constructor stub activity = a; list = history; inflater = (layoutinflater) activity.getsystemservice(context.layout_inflater_service); this.arraylist = new arraylist<pojo>(); this.arraylist.addall(list); } @override public int getcount() { // todo auto-generated method stub return list.size(); } @override public object getitem(int position) { // todo auto-generated method stub return list.get(position); } @override public long getitemid(int position) { // todo auto-generated method stub return position; } @override public view getview(int position, view convertview, viewgroup parent) { // todo auto-generated method stub view v = convertview; v = inflater.inflate(r.layout.history_item, parent, false); pojo = list.get(position); tv_date = (textview) v.findviewbyid(r.id.historydate); tv_logintime = (textview) v.findviewbyid(r.id.historylogintime); tv_logouttime = (textview) v.findviewbyid(r.id.historylogouttime); tv_details = (textview) v.findviewbyid(r.id.historydetails); tv_date.settext(pojo.getdate()); tv_logintime.settext(pojo.getlogintime()); tv_logouttime.settext(pojo.getlogouttime()); final string lat = pojo.getlat().tostring(); string longg = pojo.getlong().tostring(); log.e("adapter latitude", "" + lat); log.e("adapter longitude", "" + longg); tv_details.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { intent = new intent(context, mapactivity.class); i.putextra("lat", "" + lat); i.putextra("longg", "+longg"); context.startactivity(i); } }); return v; } } this json data
[ { "login_time": "10:30:28", "logout_time": "10:31:47", "login_date": "2015- 09-30", "lati_long": [ { "date_time": "2015:09:30 11:14:53", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:01", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:15", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:14:53", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:01", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:15", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:52", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:17:16", "latitude": "21.121776", "longitude": "79.047563" } ] }, { "login_time": "10:42:56", "logout_time": "10:44:41", "login_date": "2015-09-30", "lati_long": [ { "date_time": "2015:09:30 11:14:53", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:01", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:15", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:14:53", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:01", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:15", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:52", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:17:16", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:14:53", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:01", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:15", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:14:53", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:01", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:15", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:15:52", "latitude": "21.121776", "longitude": "79.047563" }, { "date_time": "2015:09:30 11:17:16", "latitude": "21.121776", "longitude": "79.047563" } ] } ] is there wrong here? please me.
you have declared customobject pojo's variable global variable. declare local variable
for (int k = 0; k < arr.length(); k++) { jsonobject jsonobj1 = arr.getjsonobject(k); pojo pojo = new pojo(); date = jsonobj1.optstring("login_date"); intime = jsonobj1.optstring("login_time"); outtime = jsonobj1.optstring("logout_time"); log.e("login time server",""+intime); log.e("login out server",""+outtime); log.e("login date server",""+date); pojo.setdate(date); pojo.setlogintime(intime); pojo.setlogouttime(outtime); jsonarray subarraylat = jsonobj1.getjsonarray("lati_long"); (int = 0; < subarraylat.length(); i++) { string lat = subarraylat.getjsonobject(i).getstring("latitude").tostring(); string loong = subarraylat.getjsonobject(i).getstring("longitude").tostring(); log.e("jsonarray lat", "" + lat); log.e("jsonarray longg", "" + loong); pojo.setlat(lat); pojo.setlong(loong); } history.add(pojo); }
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