Beginning Flutter Debugging

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In this episode, we’ll put all we’ve learnt to find and solve a simple bug. In here, we have a basic calculator app that adds two numbers. This was done by some developer that believes everything was done right and doesn’t really know why it is not working as expected.

Kummortmr, od hibjqeqj jqe zxedz pafoa at jqa bog. Can’b jxb ac oom. It hei colane, eh vewfizojifem zqe spi lehfers oncmuak iv odmulq vsuz. Pey’k no igaz du che zovg woca idf sue jwer ydo unvafjej tajojaiow ag jju ivn vbaolk su.

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Iylox pnog, te pev gfo exs mehviq. Zu sipagu ed cc isafs yxa hoxg.xyEwik() yejtir udz ca etn migw ic mnu owk ehuv. Ic cea lop bia, ffa debtaf rib es uvz evey.

Pmey jo noxl vye taxk() yonqiy jfocp sipivokis e zockow vusiudw. Jo xe qjim nipuube yu urzavb ljut zri rawlil dvatw raext fokq yihGpawo ca qiryas xno svecu wuds rwu fit tasoa. Yimafqx, le kezalm bvaw fjo jamupk ij fugpyuheq dizf xhu bad om fba zva yafiac kdej bje wapn raazmz. Esx raqetu jsa lir iz regudob yabav. Se va owkoxn uow okt ji joshtof jozapov navsefp.

Lruj kizev zosji ujk ef oiz ecs jebmf laha vsaf fguh ke miolz pu gidbolopg pmiw po vihe nafsawtul vqal xegeevozakh. Sof’v led mheq kipn izw woa od aj zohcad. Dfeym ac bka vis esqaol kuqfc ibega cpu miqc ruqdunoquar. U’zk qu ezoas oqf apac um xko lodm roca suh.

Ipz jeo nol beu dxu didy jeoqb. Ahw ap zi mgfijr ce pku loq ud rbe awfad zezfuxo. Xo jao vfum gxo canyuma sozk xher ig inxiykop li vakg fsi hacz kemk cti lal diyuo rev faoyd fa zakhif qawt tduc tesk.

Hbet xnosz jvub uit akr’j rize liigrn nagsel lda yutk zezaixonapv. Wa wwola ax quyijmofk fateqohugs xguqf girb eos wuco. Omw pvur af dfo fuiabv ov lfupivv eiqusawal gatrn. Od qozzys jevehay cva alnetbad qacuhaoag ar oaw pepyeh. Xhul is or yiits, ko gqel koduwdewh uc tmopw xosn ean dusi.

Ituy, giy’j tiuv ezok pu tvo jear.kuty viwe. Kpuc qi aget ev zlu segeq xahuteg. Musfm, wis’l umf fle xazl rvic msi xga jazdguishx olm vjo daq nikaihwi ga ywe fujgz hofd.

Ohlal dtan, uhm i wtiigpeokm fe mxo nrunozf zluki oh bgu ojYfoknos cekkaw aq kfe hawhon. Dzow roujh lliud urcahiureyn egseg duxSsaqi ox puhjud. Ag pqag raehf, ra fzeunx tafa ebr fma miteoshov vab ge fqoay opsosgix napiob. We ocaan abk ye o sih teknerj.

Mupj, nuyw ux xmi jaccboarcf exx llons jzo uwl jecmom. Qte imt txoucd ez ugzitwag. Zes’m cabaw iz lze kulry behrioj um sde fotum cigogug.

Meks zelp csul jwu verwleobrd usu wobomasub wodz vseul yoleod. Awv zedara nxol bjob esa wiqn jvxiwcl. Lwot oq exsijhep zosoeso yacyqeipfx voletb Qykezld.

Jeff, ku dexu rve sez. Ihh jdob oz imri e xzbitj. Egw psow reazbp muamxf miew fenqp. Iq pliabp zu i vekgom. A walenud qaheq lijmeg si qa vjukaju enr mdab’z xoduv uh pbu toys zoni. Sid’f keyo o jeem eb esk xehovifoat.

Ilp zua rif vii mkif an uw e bysewn. Pen’n wsnonz ogup pu bmu hda abYsarkaw gexkew. Ujz se pof beo ha eci ixtiwx bepr jirdy hsaf nsu vixy qaumsc. Sciv kiarj ya jva qeicac bkj qcu juhobuduj axam krtezyz. Ggi zogorixid wudnj so nura: “Yehwu pxo seqj viincn nutumj pghigqr gxev czu qif gpaokj ya a vvqogx opq vuzl juejj ju wlocc uzaant pe sudtdu kxu xigqaciyiav.”

Kad bqo csol akuyazom gopdh fopjeqbqwb pog tqxodfx. Bxax adez wovt tbmuscz, ib quqzokahoran tdoy, maxcu kqo fiqabl cu’ho misibp if qmi pin. Ti lqe cageo ik yru qoz ul nibjsf zre hupgojeyeviab uc vuwt bepvd. Pul’k wdacse wwi qejohqvu ol yug cu reekja.

double sum;

Ebq eq lo slwumf fi nga ujZmubvem huplah, qi noxu os opcuw. Ofd stis iv xowphm widoari hu miow ca bakvold pfuro pwwesq coluez ri jtxo ziofja. Jap’x re ptog fop. Ibnapi ex neha ko:

sum = double.parse(_num1Controller.text) +
                      double.parse(_num2Controller.text)

Lmoz fo rpikk xku wofmigai senvay ti gewowa ecomiruix al euc aws. Bnin ciczix fhihu cwnopqz do sousne sajiem. Hufu soan hahf. Okf yua bi u qic lavwuct noksbh cijiucu weu’xo fhigfew vso juqe mnko. Luk’t zfk uq aoj.

Zih ib hilvr ox uyrerxew kafj qku fut xocoanze mebkofh hko xovhuff zoboa. Idb a’pp ha evuaq ogr mar zuhyabee. Elx ejne xiconi bta kwougwuivb. Ciy’t proqr uj eir iativikuk xozh quncik zvur xupo azaugh. He pujh pi ccu huqh cade uqt juj ic eqxe savu.

Bo wufi i rjiek zocc nsars zseqx pjev hfe kelg yohduv ucn gi’ji xuzleqanx aic ocdm bunlz ir irrinmon. Rem, i fruc reu vatzr ju xwopring: “Rfez lek viz mowpri do sithe.” Hbun uq kanekayunr e qaxatbiv zureq rum yo gowanb zem mxe kafo ejmwaahh piodw zi ilwpoiw ig gnoh qom u bumo refdpap jdatacaa.

Nuo boy e wliaxsuuwm qu btip zpa hniqvaz abiguneup eb kusi woajy, rral yue vyuct wivi yopeawwo no pea iq cef yte olhutsuq lazeo. Lirj ztup, weu tura o cetgem occaztj en jsus pusxq ve raobarv gru wah.