asynchronous - ANDROID: Async error "An error occured while executing doInBackground()" -


i'm using async tasks info api server , update ui. error @ line of code:

public drawable[] getsummonerspells(int game) throws jsonexception, ioexception {     drawable drawable[] = new drawable[] {null, null};     bitmap bd = null;     int spell1 = 0, spell2 = 0;     if(jsonsummonerrecentgames!=null){         jsonarray array = jsonsummonerrecentgames.getjsonarray("games");         if((game) <= array.length()) {             jsonobject object = array.getjsonobject(game - 1);             if(object.has("spell1")) {                 spell1 = object.getint("spell1");             }             if(object.has("spell2")){                 spell2 = object.getint("spell2");             }         }     }     stringbuilder url = new stringbuilder("https://global.api.pvp.net/api/lol/static-data/" + region + "/v1.2/summoner-spell/" + spell1 + "?api_key=9ed10e48-7ac1-422e-b3d0-fd75dedcc3b2");     httpget = new httpget(url.tostring());     httpresponse r = httpclient.execute(get); *********error here*********     httpentity e = r.getentity();     string data = entityutils.tostring(e);     jsonobject jsonobject = new jsonobject(data);     string key = jsonobject.getstring("key");     try        {         url url2 = new url("http://ddragon.leagueoflegends.com/cdn/5.2.1/img/spell/" + key + ".png");         inputstream = new bufferedinputstream(url2.openstream());         bd = bitmapfactory.decodestream(is);     } catch(exception e2){}     if(bd != null){         drawable[0] = new bitmapdrawable(bd);     }     url = new stringbuilder("https://global.api.pvp.net/api/lol/static-data/" + region + "/v1.2/summoner-spell/" + spell2 + "?api_key=9ed10e48-7ac1-422e-b3d0-fd75dedcc3b2");     = new httpget(url.tostring());     r = httpclient.execute(get);     e = r.getentity();     data = entityutils.tostring(e);     jsonobject = new jsonobject(data);     key = jsonobject.getstring("key");     try        {         url url2 = new url("http://ddragon.leagueoflegends.com/cdn/5.2.1/img/spell/" + key + ".png");         inputstream = new bufferedinputstream(url2.openstream());         bd = bitmapfactory.decodestream(is);     } catch(exception e2){}     if(bd != null){         drawable[1] = new bitmapdrawable(bd);     }     return drawable; }

when debug it, url put in :

https://global.api.pvp.net/api/lol/static-data/na/v1.2/summoner-spell/12?api_key=9ed10e48-7ac1-422e-b3d0-fd75dedcc3b2

and website gives json response back.

i call method in doinbackground() method async task here:

        drawable[] summonerspell = null;         try {             summonerspell = data.getsummonerspells(2);         } catch (jsonexception e) {             e.printstacktrace();         } catch (ioexception e) {             e.printstacktrace();         }

and async task called first async task here:

    protected void onpostexecute(long along) {         super.onpostexecute(along);         new backgroundstuffgameone().executeonexecutor(asynctask.thread_pool_executor, dataclass);         new backgroundstuffgametwo().executeonexecutor(asynctask.thread_pool_executor, dataclass);     }

any ideas why error called? :)

from code in question, looks httpclient not getting initialized.

if have declared (which seems do), can initialize before use it:

 httpclient = new defaulthttpclient(); //added  stringbuilder url = new stringbuilder("https://global.api.pvp.net/api/lol/static-data/" + region + "/v1.2/summoner-spell/" + spell1 + "?api_key=9ed10e48-7ac1-422e-b3d0-fd75dedcc3b2");  httpget = new httpget(url.tostring());  httpresponse r = httpclient.execute(get); //should work

also, note, make sure have internet permission in androidmanifest.xml:

<uses-permission android:name="android.permission.internet" />

one more thing note, defaulthttpclient has been deprecated.

see here guide using httpurlconnection, replacement.


Comments

Post a Comment

Popular posts from this blog

angularjs - ADAL JS Angular- WebAPI add a new role claim to the token -

i have created angular spa webapi backend using adal js authentication.as there no roles in ad, need manually add role claims in order give users access different api controllers. the roles stored in database. expecting inject claim through call webapi after authentication ad. webapi code might this. identity.addclaim(new claim("role", "user")); var ticket = new authenticationticket(identity, props); var accesstoken = startup.oauthbeareroptions.accesstokenformat.protect(ticket); is possible replace adal idtoken new token? is viable solution or there other better way handle this? as initial token generated azuread, possible edit token add new claim? appreciated. graph api supporting group claims. see here: http://justazure.com/azure-active-directory-part-4-group-claims/ if @ examples on page, users assigned groups , app can check group in claims. in current version of portal, need app manifest , modify it.
Read more

node.js - Using Node without global install -

i'm working on few node & electron (atom shell) projects , i'm curious how them work without user having install node globally. i've seen few applications including node directory in project contains node.exe binary. how go setting node project use binary? edit: thought should add, i've searched everywhere answer this, unrelated results.
Read more

php - CakePHP HttpSockets send array of paramms -

i problem when make request (i can request). $link = 'http://uri/path/?param1=1&sid=2&sid=3&sid=4' $http = $httpsocket = new httpsocket(); $res = $httpsocket->get($link); if check request pr($http); i see : [line] => /url/path/?param1=1&sid%5b0%5d=2&sid%5b1%5d=3&sid%5b2%5d=4 http/1.1 and i'm getting empty response because server doesn't know parameters sid%5b0%5d=2 when try send parameters array : $data = array('param1' => '1', 'sid' => array('2','3', '4')); i see same changes %5b0%5d - additional indexes. how fix it? unfortunately , can not change server side, if send request in browser, i'll normal response in json format. when make request, can parameters this: $param1 = $_get['param1']; $sid= $_get['sid']; tip: use diferente names parameters. have multiples sid. use sid1, sid2, sid3... update: can parameters this:...
Read more