android - NullPointerException inside AbsListView -


i have amazing exception in listview outside of appication. i've read can caused mine adapter, returns null. adapter checks it: 

public view getview(int position, view convertview, viewgroup parent) {     view view = convertview;     smsholder v;     if(view == null) {         if(mainactivity.debug) {             view = linflater.inflate(r.layout.sms_list_item_debug, parent, false);         } else {             view = linflater.inflate(r.layout.sms_list_item, parent, false);         }     }      v = (smsholder) view.gettag(r.id.screenholder);      sms sms = getsms(position);      v.date.settext(zendate.format(zendate.format_rus_dm, sms.time_stamp * 1000));     v.sender.settext(sms.sender + " ");     v.text.settext(sms.text + " ");     v.selector.setoncheckedchangelistener(null);     v.selector.setchecked(checked.contains(sms._id));     v.status.settag(sms);     v.selector.settag(position);      boolean smsparsed = sms.parsed != null             && sms.checkflag(sms.flag_sender_ok)             && sms.checkflag(sms.flag_format_ok)             && sms.checkflag(sms.flag_account_ok);     if(smsparsed) {         v.status_bg.setvisibility(view.gone);     } else {         v.status_bg.setvisibility(view.visible);         if (sms.checkflag(sms.flag_format_ok)) {             v.status.setenabled(false);         } else {             v.status.setenabled(true);         }         v.status.settext(getsmsstatus(sms));         v.status.seteventlistener(new contextmenu.eventlistener() {             @override             public void onitemselected(contextmenu v, int index) {                 sms sms = (sms) v.gettag();                 if (index == 0) {                     intent = new intent(intent.action_send);                     i.settype("message/rfc822");                     i.putextra(intent.extra_email  , new string[]{"support@zenmoney.ru", ""});                     string subj = getsmsstatus(sms) + "["+ zenmoney.getversionname()+"]";                     i.putextra(intent.extra_subject, subj);                     string text = context.getstring(r.string.sms_mail);                     i.putextra(intent.extra_text, string.format(text, sms.sender, sms.text));                     try {                         = intent.createchooser(i, context.getstring(r.string.sms_app_choose));                         i.addflags(intent.flag_activity_new_task);                         context.startactivity(i);                     } catch (android.content.activitynotfoundexception ex) {                         toast.maketext(context, context.getstring(r.string.no_apps), toast.length_short).show();                     }                 } else if (mainactivity.debug && index == 1) {                     intent = new intent(context, smstestactivity.class);                     i.putextra("sms_sender", sms.sender);                     i.putextra("sms_body", sms.text);                     context.startactivity(i);                 }             }              @override             public void onclick(view view) {                 //to change body of implemented methods use file | settings | file templates.             }          });      }     v.selector.setoncheckedchangelistener(new compoundbutton.oncheckedchangelistener() {          @override         public void oncheckedchanged(compoundbutton v, boolean ischecked) {              // todo auto-generated method stub             integer position = (integer) v.gettag();             sms sms = smslist.get(position);             long id = sms._id;             if (!ischecked) {                 checked.remove(id);             } else if (!checked.contains(id)) {                 checked.add(id);             }             if (checked.size() > 0) {                 smsscreen.showbottomcab();             } else {                 smsscreen.hidebottomcab();             }         }     });     if (view == null) {         zenmoney.uncaughtexception(new nullpointerexception());     }     return view; }

here error log:

error/androidruntime(4393): fatal exception: main     java.lang.nullpointerexception     @ android.widget.abslistview.obtainview(abslistview.java:1482)     @ android.widget.listview.makeandaddview(listview.java:1786)     @ android.widget.listview.filldown(listview.java:705)     @ android.widget.listview.fillfromtop(listview.java:762)     @ android.widget.listview.layoutchildren(listview.java:1639)     @ android.widget.abslistview.onlayout(abslistview.java:1310)     @ android.view.view.layout(view.java:7224)     @ android.support.v4.view.viewpager.onlayout(viewpager.java:1528)     @ android.view.view.layout(view.java:7224)     @ android.widget.linearlayout.setchildframe(linearlayout.java:1290)     @ android.widget.linearlayout.layoutvertical(linearlayout.java:1166)     @ android.widget.linearlayout.onlayout(linearlayout.java:1083)     @ android.view.view.layout(view.java:7224)     @ android.widget.linearlayout.setchildframe(linearlayout.java:1290)     @ android.widget.linearlayout.layoutvertical(linearlayout.java:1166)     @ android.widget.linearlayout.onlayout(linearlayout.java:1083)     @ android.view.view.layout(view.java:7224)     @ android.widget.relativelayout.onlayout(relativelayout.java:943)     @ android.view.view.layout(view.java:7224)     @ android.widget.framelayout.onlayout(framelayout.java:369)     @ android.view.view.layout(view.java:7224)     @ android.widget.linearlayout.setchildframe(linearlayout.java:1290)     @ android.widget.linearlayout.layouthorizontal(linearlayout.java:1279)     @ android.widget.linearlayout.onlayout(linearlayout.java:1085)     @ android.view.view.layout(view.java:7224)     @ android.widget.framelayout.onlayout(framelayout.java:369)     @ android.view.view.layout(view.java:7224)     @ com.slidingmenu.lib.customviewabove.onlayout(customviewabove.java:426)     @ android.view.view.layout(view.java:7224)     @ android.widget.relativelayout.onlayout(relativelayout.java:943)     @ android.view.view.layout(view.java:7224)     @ android.widget.framelayout.onlayout(framelayout.java:369)     @ android.view.view.layout(view.java:7224)     @ android.view.viewroot.performtraversals(viewroot.java:1181)     @ android.view.viewroot.handlemessage(viewroot.java:1913)     @ android.os.handler.dispatchmessage(handler.java:130)     @ android.os.looper.loop(sourcefile:351)     @ android.app.activitythread.main(activitythread.java:3820)     @ java.lang.reflect.method.invokenative(native method)     @ java.lang.reflect.method.invoke(method.java:538)     @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:969)     @ com.android.internal.os.zygoteinit.main(zygoteinit.java:727)     @ dalvik.system.nativestart.main(native method)

question is: why error occur , how can avoid it?

updated: problem solved. got confused in adapters , used one. sorry :)

this happens because check whether pointer null , if throw nullpointerexception anyway. need sensible case pointer null instead of throwing nullpointerexception. otherwise might not check.


Comments

Post a Comment

Popular posts from this blog

.htaccess - First slash is removed after domain when entering a webpage in the browser -

sometimes when hit address of webpage in browser, removes first slash after domain. examples: www.mywebsite.com/scripts/script_6.php -> trying load www.mywebsite.comscripts/script_6.php www.mywebsite.com/test.php -> trying load www.mywebsite.comtest.php after entering again, loads page. a .htaccess settings must wrong: rewritebase / errordocument 404 http://www.mywebsite.com/oops.php errordocument 401 /notallowed.php rewriteengine on # turn on rewriting engine #gzip <ifmodule mod_deflate.c> addoutputfilterbytype deflate text/text text/html text/plain text/xml text/css application/x- javascript application/javascript </ifmodule> #end gzip rewritecond %{http_host} ^mywebsite\.com rewriterule ^(.*)$ http://www.mywebsite.com$1 [r=permanent,l] directoryindex index6.php rewriterule ^termsofuse/?$ termsofuse.php [nc,l] # handle requests "adpolicy" rewriterule ^privacy-policy/?$ privacy-policy.php [nc,l] # handle requ...
Read more

Automatically create pages in phpfox -

i have array of information of places , wanna use them create multiple pages in phpfox site. first tried manually insert data in phpfox database (in tables of phpfox_pages , phpfox_pages_text ). the page shown in site when opening it's link, site says: the page looking cannot found. do know other tables should manipulate make work? or know plugin phpfox same? thanks, solved ( @purefan guide): "pages" has user if take @ phpfox_user table, you'll found out how fetch new records on that. there 2 ambiguous fields in table ( password & password_salt ). can use script create values fields: <?php function generaterandomstring() { $length = 164; $characters = '-_0123456789abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz'; $randomstring = ''; ($i = 0; $i < $length; $i++) { $randomstring .= $characters[rand(0, strlen($characters) - 1)]; } return $randomstring; } $ssalt = '';...
Read more

c# - Farseer ContactListener is not working -

i'm using farseer in xna project, have trouble contactlistener. created class contactlistener these 2 error messages , don't know how fix problems. the type or namespace name 'contactlistener' not found (are missing using directive or assembly reference?) the type or namespace name 'contactimpulse' not found (are missing using directive or assembly reference?) what wrong contactlistener class? class mycontactlistener: contactlistener { void begincontact(contact contact) { /* handle begin event */ } void endcontact(contact contact) { /* handle end event */ } void presolve(contact contact, ref manifold oldmanifold) { fixture fixturea = contact.fixturea; fixture fixtureb = contact.fixtureb; if (fixtureb.collisioncategories == category.cat10) { contact.enabled = false; } } void postsolve(contact contact, ref contactimpulse impulse) { /* handle post-solve event */ } }...
Read more