How to clear data in listview and load new data in listview in android on swipe to refresh? -

i have list view add data server in first hit add 5 data , when scroll down add more 5 data server , have swipe refresh on pull down swipe clears data , add 5 data server , again next hit add 5 more same when scroll down .problem right have load more button want replace progress bar @ bottom of listview , when swipe down refresh add more 5 data first time , when on second swipe can't how can archive problem.

code:-

private int m_n_defaultrecordcount = 5;// intiallly record count 5. private int m_n_deafalutlastcount = 0;//initally lastcount 0. private swiperefreshlayout mswiperefresh; private button btnloadmore; private progressbar m_progressbar; private progressdialog m_dialog;  @override public void oncreate(@nullable bundle savedinstancestate) {     super.oncreate(savedinstancestate);     toast.maketext(getactivity(), "login successfully", toast.length_short).show(); }  @nullable @override public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) {     m_main = inflater.inflate(r.layout.deal_listing, container, false);//intialize mainlayout     getdetails();// deatail of user sharedpreference......     init();//initialize metho     return m_main; }  private void getdetails() {// details of user shared preference...     cloginsessionmanagement m_osessionmanagement = new cloginsessionmanagement(getactivity());// crating object of login session     hashmap<string, string> user = m_osessionmanagement.getlogindetails();// string login session     m_szmobilenumber = user.get(cloginsessionmanagement.s_szkey_mobile).trim();// getting password saved preferences..........     m_szencryptedpassword = user.get(cloginsessionmanagement.s_szkey_password).trim();// getting mobile num shared preferences...     sz_recordcount = string.valueof(m_n_defaultrecordcount);// increment of record count     sz_lastcount = string.valueof(m_n_deafalutlastcount);// increment of last count...      s_odataset = new arraylist<>();// making object of arraylist      if (networkutil.isconnected(getactivity())) {         postdeallistingdatatoserver();     } else {          toast.maketext(getactivity(), "please check internet connection !", toast.length_long).show();     }  }  private void init() {// initialize controls      m_progressbar = (progressbar) m_main.findviewbyid(r.id.progressbar1);// finding id of progressview     m_progressbar.setvisibility(view.gone);// make profressview invisible first time      /*swipe refresh code*/     mswiperefresh = (swiperefreshlayout) m_main.findviewbyid(r.id.activity_main_swipe_refresh_layout);     mswiperefresh.setcolorschemeresources(r.color.refresh_progress_1);      mswiperefresh.setonrefreshlistener(new swiperefreshlayout.onrefreshlistener() {         @override         public void onrefresh() {             /*here check net connection avialable or not */             if (networkutil.isconnected(getactivity())) {                  m_listview.removefooterview(btnloadmore);                 s_odataset.clear();                 m_n_deafalutlastcount = 0;                 sz_lastcount = string.valueof(m_n_deafalutlastcount);// convert int value string /////                 swipedata();               } else {                 toast.maketext(getactivity(), "please check internet connection !", toast.length_long).show();                 if (mswiperefresh.isrefreshing()) {                      mswiperefresh.setrefreshing(false);                 }             }         }     });     m_n_formimage = new int[]{// defining images in integer array             r.drawable.amazon,             r.drawable.whatsapp,             r.drawable.zorpia,             r.drawable.path,             r.drawable.app_me,             r.drawable.evernote,             r.drawable.app_me};      m_listview = (listview) m_main.findviewbyid(r.id.deallist);// findind id of listview     m_listview.setfadingedgelength(0);     m_listview.setonscrolllistener(new abslistview.onscrolllistener() {         @override         public void onscrollstatechanged(abslistview view, int scrollstate) {           }          @override         public void onscroll(abslistview view, int firstvisibleitem, int visibleitemcount, int totalitemcount) {             if (firstvisibleitem == 0) {                 mswiperefresh.setenabled(true);             } else {                 mswiperefresh.setenabled(false);             }         }     });   }      /*this new changes in code ....using volley instead of asynktask*/  /*this method send request server deallisting*/ // method send request server deal list.... public void postdeallistingdatatoserver() {     try {         string json;         // 3. build jsonobject         jsonobject jsonobject = new jsonobject();// making object of jsons.         jsonobject.put("agentcode", m_szmobilenumber);// put mobile number         jsonobject.put("pin", m_szencryptedpassword);// put password         jsonobject.put("recordcount", sz_recordcount);// put record count         jsonobject.put("lastcountvalue", sz_lastcount);// put last count         // 4. convert jsonobject json string         json = jsonobject.tostring();// convert json object string          system.out.println("request:-" + json);         m_dialog = dialogutils.showprogressdialog(getactivity(), "please wait while loading deals...");         jsonobjectrequest jsonobjectrequest = new jsonobjectrequest(request.method.post, cserverapi.m_deallistingurl, jsonobject, new response.listener<jsonobject>() {             @override             public void onresponse(jsonobject response) {                 system.out.println("response:-" + response);                 m_dialog.dismiss();                 try {                     jsonarray posts = response.optjsonarray("deallist");// deal list in array response                     (int = 0; < posts.length(); i++) {// loop counting deals server                         jsonobject post = posts.getjsonobject(i);// counting deal based on index                         item = new cdealappdatastorage();// creating object of dealappdata storage                         item.setm_szheadertext(post.getstring("dealname"));// deal name response                         item.setm_szsubheadertext(post.getstring("dealcode"));// dealcode response                         item.setm_szdealvalue(post.getstring("dealvalue"));// deal value response                         item.setm_n_image(m_n_formimage[i]);//set image index wise(dummy)                         s_odataset.add(item);// add items in arraylist                      }                      // loadmore button                     btnloadmore = new button(getactivity());// creating button                     btnloadmore.settext("load more deals");// set text in button                     btnloadmore.setbackgroundresource(r.drawable.button_boarder);// set background resource                     btnloadmore.settypeface(typeface.default_bold);                     btnloadmore.settextsize(14);                     btnloadmore.settextcolor(color.white);// set color of button text                     btnloadmore.setgravity(gravity.center);// set gravity of button text                       if (!s_odataset.isempty()) {// condition if data in arraylist not empty                         // adding load more button lisview @ bottom                         m_listview.addfooterview(btnloadmore);// add footer in listview                         m_oadapter = new cdealapplistingadapter(getactivity(), s_odataset);// create adapter object , add arraylist adapter                         m_listview.setadapter(m_oadapter);//adding adapter recyclerview                     } else {                         btnloadmore.setvisibility(view.gone);// else load buttonvisibility set gone                     }                     btnloadmore.setonclicklistener(new view.onclicklistener() {                         @override                         public void onclick(view v) {// load more button onclick listener                             if (networkutil.isconnected(getactivity())) {                                 m_n_defaultrecordcount = 5;// increment of record count 5 on next load data                                 m_n_deafalutlastcount = m_n_deafalutlastcount + 5;// same here.....as above                                 string itemscount = string.valueof(m_listview.getadapter().getcount());                                 system.out.println("toatal item:-" + itemscount);                                  sz_recordcount = string.valueof(m_n_defaultrecordcount);// convert int value string                                 sz_lastcount = string.valueof(m_n_deafalutlastcount);// convert int value string /////                                 loadmoredata();                             } else {                                 toast.maketext(getactivity(), "please check internet connection !", toast.length_long).show();                             }                         }                     });                     if (response.getstring("resultdescription").equalsignorecase("connection not available")) {//server based conditions                         csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.mainlayout), "connection lost !", getactivity());                     } else if (response.getstring("resultdescription").equalsignorecase("deal list not found")) {// serevr based conditions .....                         csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.mainlayout), "no more deals available", getactivity());                      } else if (response.getstring("resultdescription").equalsignorecase("technical failure")) {                         csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.mainlayout), "technical failure", getactivity());                     }                  } catch (jsonexception e) {                     e.printstacktrace();                 }             }         }, new response.errorlistener() {             @override             public void onerrorresponse(volleyerror error) {                 system.out.println("errror:-" + error);                 m_dialog.dismiss();                 if (error instanceof timeouterror) {                     csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.activity_main_swipe_refresh_layout), "connection lost ! please try again", getactivity());                 } else if (error instanceof networkerror) {                     csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.activity_main_swipe_refresh_layout), "no internet connection", getactivity());                 }              }         });         requestqueue requestqueue = volley.newrequestqueue(getactivity());         requestqueue.add(jsonobjectrequest);     } catch (jsonexception e) {         e.printstacktrace();     }  }  /*this method send request server more deals*/ //this method post request server fetch more deal public void loadmoredata() {      try {         string json;         // 3. build jsonobject         jsonobject jsonobject = new jsonobject();// making object of jsons.         jsonobject.put("agentcode", m_szmobilenumber);// put mobile number         jsonobject.put("pin", m_szencryptedpassword);// put password         jsonobject.put("recordcount", sz_recordcount);// put record count         jsonobject.put("lastcountvalue", sz_lastcount);// put last count         // 4. convert jsonobject json string         json = jsonobject.tostring();// convert json object string          system.out.println("server request:-" + json);         m_progressbar.setvisibility(view.visible);// show progress bar         jsonobjectrequest jsonobjectrequest = new jsonobjectrequest(request.method.post, cserverapi.m_deallistingurl, jsonobject, new response.listener<jsonobject>() {             @override             public void onresponse(jsonobject response) {                 system.out.println("response:-" + response);                 try {                     jsonarray posts = response.optjsonarray("deallist");// getting deal list                     (int = 0; < posts.length(); i++) {                         jsonobject post = posts.getjsonobject(i);// getting deal @ position @                         item = new cdealappdatastorage();// object create of dealappdatastorage                         item.setm_szheadertext(post.getstring("dealname"));//getting deal name                         item.setm_szsubheadertext(post.getstring("dealcode"));// getting deal code                         item.setm_szdealvalue(post.getstring("dealvalue"));                          if (!s_odataset.contains(item)) {                             s_odataset.add(item);                             m_oadapter.notifydatasetchanged();                         }                     }                     if (response.getstring("resultdescription").equalsignorecase("connection not available")) {//server based conditions                         csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.mainlayout), "connection lost !", getactivity());                     } else if (response.getstring("resultdescription").equalsignorecase("deal list not found")) {// serevr based conditions .....                         csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.mainlayout), "no more deals available", getactivity());                      } else if (response.getstring("resultdescription").equalsignorecase("technical failure")) {                         csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.mainlayout), "technical failure", getactivity());                     }                 } catch (jsonexception e) {                     e.printstacktrace();                 }                 m_progressbar.setvisibility(view.gone);             }         }, new response.errorlistener() {             @override             public void onerrorresponse(volleyerror error) {                 system.out.println("error:-" + error);                 m_progressbar.setvisibility(view.gone);                 if (error instanceof timeouterror) {                     csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.activity_main_swipe_refresh_layout), "connection lost ! please try again", getactivity());                 } else if (error instanceof networkerror) {                     csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.activity_main_swipe_refresh_layout), "no internet connection", getactivity());                 }             }         });         requestqueue requestqueue = volley.newrequestqueue(getactivity());         requestqueue.add(jsonobjectrequest);     } catch (jsonexception e) {         e.printstacktrace();     } }  /*this method invoke on swipe refresh*/ // method invoke when swipe refresh enable .... public void swipedata() {     try {         string json;         // 3. build jsonobject         jsonobject jsonobject = new jsonobject();// making object of jsons.         jsonobject.put("agentcode", m_szmobilenumber);// put mobile number         jsonobject.put("pin", m_szencryptedpassword);// put password         jsonobject.put("recordcount", sz_recordcount);// put record count         jsonobject.put("lastcountvalue", sz_lastcount);// put last count         // 4. convert jsonobject json string         json = jsonobject.tostring();// convert json object string          system.out.println("server request:-" + json);         jsonobjectrequest jsonobjectrequest = new jsonobjectrequest(request.method.post, cserverapi.m_deallistingurl, jsonobject, new response.listener<jsonobject>() {             @override             public void onresponse(jsonobject response) {                 system.out.println("response:-" + response);                 mswiperefresh.setrefreshing(false);                 try {                     jsonarray posts = response.optjsonarray("deallist");// deal list in array response                     (int = 0; < posts.length(); i++) {// loop counting deals server                         jsonobject post = posts.getjsonobject(i);// counting deal based on index                         item = new cdealappdatastorage();// creating object of dealappdata storage                         item.setm_szheadertext(post.getstring("dealname"));// deal name response                         item.setm_szsubheadertext(post.getstring("dealcode"));// dealcode response                         item.setm_szdealvalue(post.getstring("dealvalue"));// deal value response                         item.setm_n_image(m_n_formimage[i]);//set image index wise(dummy)                         s_odataset.add(item);// add items in arraylist                      }                      // loadmore button                     btnloadmore = new button(getactivity());// creating button                     btnloadmore.settext("load more deals");// set text in button                     btnloadmore.setbackgroundresource(r.drawable.button_boarder);// set background resource                     btnloadmore.settypeface(typeface.default_bold);                     btnloadmore.settextsize(14);                     btnloadmore.settextcolor(color.white);// set color of button text                     btnloadmore.setgravity(gravity.center);// set gravity of button text                       if (!s_odataset.isempty()) {// condition if data in arraylist not empty                         // adding load more button lisview @ bottom                         m_listview.addfooterview(btnloadmore);// add footer in listview                         m_oadapter = new cdealapplistingadapter(getactivity(), s_odataset);// create adapter object , add arraylist adapter                         m_listview.setadapter(m_oadapter);//adding adapter recyclerview                     } else {                         btnloadmore.setvisibility(view.gone);// else load buttonvisibility set gone                     }                     btnloadmore.setonclicklistener(new view.onclicklistener() {                         @override                         public void onclick(view v) {// load more button onclick listener                             if (networkutil.isconnected(getactivity())) {                                 m_n_defaultrecordcount = 5;// increment of record count 5 on next load data                                 m_n_deafalutlastcount = m_n_deafalutlastcount + 5;// same here.....as above                                 string itemscount = string.valueof(m_listview.getadapter().getcount());                                 system.out.println("toatal item:-" + itemscount);                                  sz_recordcount = string.valueof(m_n_defaultrecordcount);// convert int value string                                 sz_lastcount = string.valueof(m_n_deafalutlastcount);// convert int value string /////                                 loadmoredata();// method load more deals server ....                             } else {                                 toast.maketext(getactivity(), "please check internet connection !", toast.length_long).show();                             }                          }                     });                     if (response.getstring("resultdescription").equalsignorecase("connection not available")) {//server based conditions                         csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.mainlayout), "connection lost !", getactivity());                     } else if (response.getstring("resultdescription").equalsignorecase("deal list not found")) {// serevr based conditions .....                         csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.mainlayout), "no more deals available", getactivity());                      } else if (response.getstring("resultdescription").equalsignorecase("technical failure")) {                         csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.mainlayout), "technical failure", getactivity());                     }                 } catch (jsonexception e) {                     e.printstacktrace();                 }              }         }, new response.errorlistener() {             @override             public void onerrorresponse(volleyerror error) {                 system.out.println("error:-" + error);                 mswiperefresh.setrefreshing(false);                 if (error instanceof timeouterror) {                     csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.activity_main_swipe_refresh_layout), "connection lost ! please try again", getactivity());                 } else if (error instanceof networkerror) {                     csnackbar.getinstance().showsnackbarerror(m_main.findviewbyid(r.id.activity_main_swipe_refresh_layout), "no internet connection", getactivity());                 }             }         });         requestqueue requestqueue = volley.newrequestqueue(getactivity());         requestqueue.add(jsonobjectrequest);      } catch (jsonexception e) {         e.printstacktrace();     } } 

}