android - My app functionality is lost on some devices -


my code below works on emulator on devices .e.g. lg , zte devices work 100%. however, on other devices samsung , huawei, poi's need plot not working. else works including network measurements through phonestatelistener. on teh non-functional devices, app opens displays google map with no poi's shown. have tried calling makesite() method in different places , makes no difference.

any ideas on doing incorrectly. new android coding lost @ stage:

enter code here@override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_maps);     requestforpermission();     pslistener = new myphonestatelistener();     telephonymanager = (telephonymanager) getsystemservice(context.telephony_service);     telephonymanager.listen(pslistener, myphonestatelistener.listen_signal_strengths);       supportmapfragment mapfragment = (supportmapfragment) getsupportfragmentmanager()             .findfragmentbyid(r.id.map);     mapfragment.getmapasync(this);   }  public void makesite() throws ioexception, biffexception {      double latitude;     double longitude;       try {          assetmanager assetmanager = getassets();         inputstream inputstream = assetmanager.open("newfile.xls");         workbook workbook = workbook.getworkbook(inputstream);         sheet sheet = workbook.getsheet(0);          (int row = 1; row < 5010; row++) {              cell sitenamecell = sheet.getcell(0, row);             cell latitudecell = sheet.getcell(1, row);             cell longitudecell = sheet.getcell(2, row);             cell siterevcellh = sheet.getcell(4, row);             cell siterevcella = sheet.getcell(5, row);             cell siterevcellb = sheet.getcell(6, row);             cell siterevcellu = sheet.getcell(7, row);               latitude = double.parsedouble(latitudecell.getcontents());             longitude = double.parsedouble(longitudecell.getcontents());             sitename = sitenamecell.getcontents();             siterevh = java.lang.boolean.parseboolean(siterevcellh.getcontents());             sitereva = java.lang.boolean.parseboolean(siterevcella.getcontents());             siterevb = java.lang.boolean.parseboolean(siterevcellb.getcontents());             siterevu = java.lang.boolean.parseboolean(siterevcellu.getcontents());              towerlatlong = new latlng(latitude, longitude);               if (siterevh == true) {                 sitehigh(towerlatlong, sitename);              } else if (sitereva == true) {                 siteabove(towerlatlong, sitename);             } else if (siterevb == true) {                 sitebelow(towerlatlong, sitename);             } else if (siterevu == true) {                 positionsite(towerlatlong, sitename, sitechurn);              }           }     } catch (exception e) {      }   }   public void positionsite(latlng towerlatlong, string sitename, string sitechurn) {     markeroptions options = new markeroptions()             .icon(bitmapdescriptorfactory.fromasset("ctower1.png"))             .title(sitename)             .position(towerlatlong);       mmap.addmarker(options);  }  public void sitehigh(latlng towerlatlong, string sitename) {     markeroptions options = new markeroptions()             .icon(bitmapdescriptorfactory.fromasset("ctower1.png"))             .title(sitename)             .position(towerlatlong);     mmap.addmarker(options);   }  public void siteabove(latlng towerlatlong, string sitename) {     markeroptions options = new markeroptions()             .icon(bitmapdescriptorfactory.fromasset("ctower1.png"))             .title(sitename)             .position(towerlatlong);     mmap.addmarker(options);   }  public void sitebelow(latlng towerlatlong, string sitename) {     markeroptions options = new markeroptions()             .icon(bitmapdescriptorfactory.fromasset("ctower1.png"))             .title(sitename)             .position(towerlatlong);     mmap.addmarker(options);   }   @override public void onmapready(googlemap googlemap) {     mmap = googlemap;      try {         makesite();         latlng site = towerlatlong;         string name = sitename;         mmap.movecamera(cameraupdatefactory.newlatlng(site));         //mmap.movecamera(cameraupdatefactory.newlatlngzoom((site), 16.0f));         setupmap();       } catch (exception e) {         toast = toast.maketext(this, "caught :" + e.getmessage(), toast.length_short);     } }  public void setupmap() throws ioexception, biffexception {      uisettings ui;     ui = mmap.getuisettings();     ui.setzoomcontrolsenabled(true);     ui.setcompassenabled(true);     ui.setallgesturesenabled(true);     mmap.setbuildingsenabled(true);     mmap.setmaptype(mmap.map_type_normal);     mmap.setmylocationenabled(true);     mmap.setpadding(0, 70, 0, 0);     //makesite();      if (build.version.sdk_int > build.version_codes.m) {         if (activitycompat.checkselfpermission(this, manifest.permission.access_fine_location) == packagemanager.permission_granted) {             mmap.setmylocationenabled(true);         } else {          }     } else {     }     mmap.setmylocationenabled(true); }  @targetapi(24) public void requestforpermission() {     if (contextcompat.checkselfpermission(this, manifest.permission.access_coarse_location) != packagemanager.permission_granted) {         requestpermissions(new string[]{manifest.permission.access_coarse_location}, code_access_coarse);       }  }           public class myphonestatelistener extends phonestatelistener {      public int netid;     public int netid2;     public int netid3;     public int netid4;     public int netid5;     public int netid6;     public double netid7;     public int nettype;        @override     public void onsignalstrengthschanged(signalstrength signalstrength) {         super.onsignalstrengthschanged(signalstrength);         nettype = telephonymanager.getnetworktype();          telephonymanager telephonymanager = (telephonymanager) getsystemservice(context.telephony_service);         list<cellinfo> cellinfo = telephonymanager.getallcellinfo();         if (cellinfo != null) {             (int = 0; < cellinfo.size(); i++) {                 if (cellinfo.get(i).isregistered()) {                      if (cellinfo.get(i) instanceof cellinfowcdma) {                         cellinfowcdma cellinfowcdma = (cellinfowcdma) telephonymanager.getallcellinfo().get(0);                         cellsignalstrengthwcdma cellsignalstrengthwcdma = cellinfowcdma.getcellsignalstrength();                         cellidentitywcdma cellidentitywcdma = cellinfowcdma.getcellidentity();                          netid3 = cellsignalstrengthwcdma.getasulevel();                         netid2 = netid3 - 116;                         netid = cellidentitywcdma.getcid() & 0xffff;                         netid4 = cellidentitywcdma.getlac();                       } else if (cellinfo.get(i) instanceof cellinfogsm) {                          cellinfogsm cellinfogsm = (cellinfogsm) telephonymanager.getallcellinfo().get(0);                         cellsignalstrengthgsm cellsignalstrengthgsm = cellinfogsm.getcellsignalstrength();                         cellidentitygsm cellidentitygsm = cellinfogsm.getcellidentity();                          netid = cellidentitygsm.getcid() & 0xffff;                         netid2 = (2 * netid3) - 113;                         netid3 = cellsignalstrengthgsm.getasulevel();                         netid4 = cellidentitygsm.getlac();                      } else if (cellinfo.get(i) instanceof cellinfolte) {                          cellinfolte cellinfolte = (cellinfolte) telephonymanager.getallcellinfo().get(0);                         cellsignalstrengthlte cellsignalstrengthlte = cellinfolte.getcellsignalstrength();                         cellidentitylte cellidentitylte = cellinfolte.getcellidentity();                          netid = cellidentitylte.getci() / 256;                         netid3 = cellsignalstrengthlte.getasulevel();                         netid2 = netid3 - 140;                         netid4 = cellidentitylte.gettac();                         }                      }                   }               }             if (nettype == 13) {                   settextviewtextthree(string.valueof("node id:" + (netid)) + "      " + "rsrp:" + (netid2) + "    " + "tac:" + (netid4));              } else if (nettype == 3 || nettype == 10 || nettype == 8 || nettype == 15) {                 settextviewtextthree(string.valueof("cell id:" + (netid)) + "      " + "rscp:" + (netid2) + "     " + "lac:" + (netid4));              } else if (nettype == 2) {                 settextviewtextthree(string.valueof("cell id:" + (netid)) + "      " + "rxlev:" + (netid2) + "     " + "lac:" + (netid4));             }         }     }      public void settextviewtextthree(string s) {      ((textview) findviewbyid(r.id.rxlevel)).settext(s);  }    }


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