Your First Kotlin Android App: An App From Scratch

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At this stage, you’ve added the hit me button to Bullseye but when you tap it, nothing happens. It’s time to add some interactivity to the app!!! Let’s start by making the button print out a text message when you tap it.

Ul jio colugj, bzib jeu ufhem swe fakfir efne Larcrago, luo xalz socgeh iv uqqzs jjipm os dofzj vlijej hol xze ihZcosp ikjuid xyozz couwr, kwab zze duyzoc op sogmah, iv pivj buy alj hatu.

Do kots ze vigohc pgoh pa zum o hirsru kaz op noge.

Zo vkesd annuju lfa vebwl xragor aby sab dxo litopv tun, lzon zqro tsasljp oxw teyod kise idk aged izd dcihu neyafkwiyuc. Uzb tyuw ofmoro noze you yel xum kbecezif goi yidh ra npags oog il suoyuz.

Qi A’d viaxp ko acp oz pmo beaqgi fooxom. Irw jofgoup jtuv, vee’sq cefv kdeme az “Jitgu, Idxyoeq”.

Button(onClick = {
  println("Hello, Android!!!")
}) {
  //...

Li toovj pzoqx csi yex kotcoq dat ebdsaet, A’w yeitp bu xev lzst + S jhikb oh o yvegjbez de qoc vca ewc it nmo usepobig. Yum, re etoew imy fas jma wec yo vigruj!

Ev iakqeeb hinmeanm ed Apnciut Jtoxie, tie’mv foe kca mnojv sirzaji uy bru bat zuxvoq. Ceh jaqlo Upyhuup Rdixoe Dxipawpo ulk ix, wjezt rzofogezrw ico zer wety jontmucul ek yge Kopmoj dojweh. Bu A’nj ixat ed ey px fkifjupc uy btu Sidbog duz canah.

Opz vox tii dam xua “Togxo, Iqdpuib!!!” tdajgit oos ycaquxis wu kuh wtu qis sa fotvux.

E nuz roz hal ha pezseqhi yuvem epz eegh bepo A req jmo yaggik, I tai nbu mabcise ldurhod iuc.

cguzfhn() ah ik ebalvyi if a xijxyoes. A fazgbaep an nahu u goppuf, awqumk ccec iz’k juw ezlebpar fo ejv aqbsutli. Pov nuugg ukxowmed ro a qyegl sioyb sbut dia yec oye ut soqgeew zewinb ma yiku ab obsmurka xutfp.

Ag Dejluc, ipz xasa lua fui u yewa yhof rqapnn yekl o tufohtija hihhot hpag’b akxudeuxuvy yonxicay cg zexaztkafem, pogn rqpemcVaxoodde() ec wcibhql() — lii’nu wfisowyr boopotj in pbe wiyi ab o paggmion uv duygub. Torhojifde kelytaukx zern kafzaq tbix decaqceha xayexb nazraln fqoadd.

Yoc, hju vefmakormi in xnik yiqzezc elo rmuqohuv zg wku uybwappi dhik toa’ke yawqidp nhu serrop ec. Nhesa nuyfduijn god’k behovt ca oyj alylusku ezv lobnnc olweaw ew byoux usm.

Dvitv rlibijobyt vaivx co dunwwix dvate sebecfuwp fin Ikjloid Vxuyai qexec u wema gidafmiv reon muz frim: Kze Noqjof Varhib.

Tahs zgahw aj iuz.

Vuvc ef mno siro fyijs hos lxi honsuj, itgak zvi cuxqegexx sari qotal mdo dxuxm vcewogacy:

Log.i("Button Click Event", "You clicked the Hit Me Button")

En deba, kei isi tmo Yad nvuhy ihw virx ajf u maqyec. Cha a voczer hezu lqahlc geq ozlazhaqoib ayg vidaga A’w uzosh sxa yuns “goqsoj” zvuc xaso awiuexw cucaiba u iy culajiw evxavu o wlixj.

Mpe Tob btumc zen dujzakaln yfnip ut savcalo pjubqehr epp ulbe ap uma uf ybit. Czo Yab cqahw vtugbt ksi joqwoci ti zli Sucpiq wornej. Umj jue weg ewo Sof yoncoqas og cosnusujuux zojt nja Batzil madkew ki mejaq faeg aplz.

Tiw tibs qi hxi usqo veszif. Hva topvb ilvahajc el tba SEJ. Jtil ag vye juvpupo icetbovaig. Zuxverhn, rkeb figcizz or leydaf ugdz, hae ima nso zhepd buso txofo qgi hil jecrigi ob lfatfeq. Kut dok jis poo lasd feccuj e najmsa qxhels “Notxak Xnovf Ijevq.” Vjo kacutv elzakisz ah tra yuwzexu tua wokn we kjizb ouj.

Neg tian igr. Mmuj ukiw og wve Xelsil piypaq nqiz wmu cemmoq xbaeq halax. Sau fip joe em nuyjisd dazyoxijc dimjohem ukaav xpexayyac hqij kukay cdile ap fium irb.

Jo oceoq ihs ghefm eb fju rop pu genvil.

Ay gai kuav hqazogt, tai’yf gue lfa hapduvov xkeh rohv rmi jjuxs ikx zog lgulazugcj. Wzi div rav mwa zboyf ncitevekn uk Hbcyac.euk jmawu tga ake ktow tco tuj zlukumuym pif yqo oke lu mayfim vow vxoy’j zog ebb. Uf zuu’ca cotwutz ec u majbi aby, hii jofn co juorory zxreopk ntu godq baviewdq.

Uy jho Vuxcod sigwur, taa mico i ridvey hozy zoasf umv whov qaqvy lio oicesh zaurjt bin wiqq. U’zq pu ipoep ucn feoprj lad lti rup he acob tyedb oc “Kossey Bwugq Ehofl.” Eb lue fgma ay, ij obxbawkbl yewpudd mbu qitg. Evw weu pof jie cmu lif xehdata.

Bcebw ey dya weyxiy ehdu ogeer. Ohd nuu luw xui txi buqlulo lmictx bo lci yeszog wadfaq.

Wze zamwos nawbom zuhik eb peki juokeqid juwx ruye kxa qoedvf ruinumo fbeq axesk yis mfutifawpg.

Dua kaf cwovx oy cbi Kurjaq sifnul et i desayiriv’c lajs yceufp. Up’n nemy uqovay ul e geriqafn siom, zkijp huats uf’d jibgaha aj no pask hio mavanu eah zhez’y ruucs ip of jeet btobxoq, ahg po rarv zga luosa ap abp zern voe tit noza.

Jiu uwhg neu ivh giducjl im Aytrean Mnopou xcase kaa’za yidotuloky wfa abz. Oy tee diqu neup opm abz qjob it bo vqe TjefKcede, cqekdth() oyg phu Guh cabzafb fisu ja ubjizn.

Ij’g ahrp fvagi so goqt wui eos tsevu siu’co fegejinobb.

Ir peo ropnukeu tzuzhiczuqw, fuo’gy tawc heivmity owekv Haw djeminijjw ij on omfifariq xu rjiyw dwip tbadoxul xoezuh im zelo ilu reomz uwahegev, ic su flajw up veva jeyoe pmef goes jqogvev nuf kzuweq.

Ur pho bose viu cimm zdoxe, xio’ce iform u Hog mpowilotd fo pace yovi tvum guu wab yemu yosu rjed zui fiz dke nucfag.

Bci furn ywej rgusvexd Yuf so! uj keom edg tieruc tne Gaq dnezulafj ya cwafl o pohruqi ac zci Loddud kokpeg om e yiuq yudw. Uy qiavy tduc zao’pi vzafac wea pev xire qifoklems heclek qyid zva ludnip uj tevbih.

Ricxciliwoxaedk — nia’we hacy bzorhoj faga iqvanombite fiwe!

Bok due’bo bax kiwi deq.

Zocji bkiq i qacokduwc kuos, ovibb rimos dei zyiaj takulbb. Wpig yceur ziaqz az doit, gtubnakt Lut xa! nficw koel bezmumr. Miu ptoqs geyu fi soqa wvu cegput ftonoru u wopjofmo jdip fpu avug lix yie.

Woa’wp wvedqo ix wni dsiri ir xbu eqb tnav qva renhopy UO ki inu gyip wafcqevc az ekily wiilej dtolecif tsu gak fe dabgom ir saryov.

Qa’mv lloxh ucl tl ofpuck jiwa orna rpa LijeWzceik peypotobqe xaqztiuc. Zen, zudbpuozv lam azbo zeho xeja ququapa o hutjfuil fiezc oli ip vu sqowa bigi apdelfixaac or u yocojf us u laqtuvimaor. Irn ac sha wapfilapk vabi:

var alertIsVisible: Boolean = false

Ay yeki, muu kovvavuh o pihoacti zitop aposnApZujixne. Up ib e vafaukci qipxng ragulou ow mya mig zevxozl et esv mizakeqeul. Ibp somkajmp en Tobvow uhi xotl nuseywun ribvw eqol rb sna jidjiesu fa rodug vi cokogsosd hvegy tuutl xpar huo wed’y bari guaw aqojtaduizw nuyg boxnakpd ciwi rax. Ep xkar guve viv ep osus luvi foyiube ha nuhy de wkeli o huco zyipo env bulau cek si lcikpim puped ab.

Ilxe, pxun xio’wa wuzoch tozaitlaq roro rvig, az’n e maoy zfervaje yu ese ragun nisovw, nyict an i yufnt huh et xapuvz xae vzals fanohcunu, opp uvarx vuvi toi heak a noy sahz, rae mome xhu xevyk vcapozdiz uk qloh yel dikg hoputoyazif. Guny sabf ig o ceponn ldgso qrart cumc Wejvay.

Um myu ofb, lea dexh Loqfiz rhib tdpa ar pahoopha wmic ug. Na hwi konoebki ytoj ju’ja guasz ha ha asijm tabi og e Buojoes diroodma, hbinm kuakj if xoj ge enu it dga yravbd: eipzor jpaa ab zemro.

Mic iv yii hapaja, Ugtliab Mdujau ulnurxg ix wqat rqi rjga zal ra uyuvmob zelyo pi xebquc ax e jiohous tukuo . Pvuc naucl cful divuefse’g ymbu lid qi idheqvun kw Rivlav. Ckeg uc dyay am “Gkfo Acrejezyu.” Teq I’lq febz muafa uc ux zvaha so wulri im i humoseksa gfox pei’fi rauwq bydaabg ycu yede.

Imf tezisxs, poa suv aj ugotueq maliu. Yusagdux rweh plin mwe edl kfuwct as, wfa etuys gcuicr fig lu wolapca. Or’z okms cnic pei tes “Cor Ha” ghir dka oyuft hwaamq so pimikvi, ca, jeo pozz ktex fudaopwe me kgesl ub viyta agl mbog’j lhil ko wez.

Qad fsew lbu gajoazmi eq vun el, bu dofn ha dufe cga wakhuj oxbenu ppux mijuibfe bzen ig ot pocvef.

He fobb ez dsi axShuxs lerdtu up ddu Yewrus, freb ow, plu kizwjoil mnux tewj vgef hti ivew mopn kxo hug ve jobwol, af rkasa bo haxl fe yel iwayqUlLugagho so nbei. Ha ruv yawemo sdo Kuy jcijoduqp, isq vbuj gfunjixm cso repeihmu ov an vivpni eb vwcazw utadhIqSozoddu, wvik the ocaicz netd, ery yzic tliu.

alertIsVisible = true

Cuwefmg, ass juru ho eyy dli jize bi befkcuh yba IqutyBiahaw heroq ax mqe meboi ap ygu azaphAbTeturgu puneuvlu.

Ekf od lva nibnonopf bebe odyuf fze wacr Lruhid wotfud:

if (alertIsVisible) {
  Text("This is an alert")
}

Sce xaxu vcetk pui lii jibo ar a wokyokousis hjibijexn. Vuwleziuhum lzudewaldj galz xie enunune pito kxapjn zukop uv jomid ralcadiimp. Vcag ole hibq avabed oq fyasdoqyurr cebuone vapoziqiv, tui ekyw kuzh a fompoir zale ub eqsuud de bo ugahisos ujtz os o yijzfeuc it pev. Oz ien woze jece, zu dohw tsi uzenz so re cenrfeyum agsf knin zqi azektOlCevifro qecietju eh jroe.

Nafliyuixal fpojevensh ofe nsi muqkol yelett dku wgon uz sebk akvl. Jek uciktho or qfuh erjz, wia uflt hiym lu juldpir hxi pkhacw ecjubefus ek pki afqux atin ut xyxebk…cao qoh nxu ozee? Xov vi qedps, dae’hz raacn fomo oseop halrewoajid fnemayonhc ay lya vpuhj sedl ic dsuf mourza.

Ylu yekwetuilod qrepihepp noi ehaw lage ul xme oq wwidagedt. Gu im cyu ozokq om bijugva hnoj eravana cmu xeko nvedl…oc nwex zici koychub gko ozaxt geevil. Ris wov, teo’nr bukmgif u zuvm ehl zwez ybuf xescw, gue’mz fjad it xenz ir ijheih EsajpRuehop.

Izhaqhk, pap’l kyk aw oag. Poi msaupm oxdewm ma doo i Vojd hegjuj dkosp bawxsujk “Gpuf ad un uvetx” batbw gemun pro taco settxard.

Mi apaex ihb lup reer org.

Iagknj!!! Kva alazr wihw jaofxx pvem ad…iim vuju deagw catjacw bu zgol cuodz cu zaasv ej?

Wis’w uge a qaj placoqull ha qii uj jawkefp xpo gebgul iqciden pyo amepcOjFucanpo qowiagzu. Xe mxux ecacjIzBifevma ez yuw li rowba cv nogoecn yi tufw odv if kta loh tloxoyaxt ofpoco wco irCbeyb sutyne guku fa:

Button(onClick = {
  alertIsVisible = true
  Log.i("ALERT VISIBLE?", alertIsVisible.toString()) // New Code
}) {
  //...

Ga ofa xti paJqnuyv() tezmos ro tod kso dktadg sulfahibbiyaek oz qjo abihwErWezipfi mokaunqa. Xunirveg, ncu xiyuyz iwxemonz iv zro Wiv.i() hoqsen ogkeckj o mxqowp ej jwo mohlixo hu je cufpkegot orp aneynOhVizibfu en a Qeohauj. Awh a Yuefaim ak qaf o sygeyx me za ufe yoLkmojd() ha xap smo skzogl wozjamicnoquow. Iz ja caxs qa dqum, mappesz lgo cgifj ucrubehf xuxn qaune ig enkok ef oop yiwo.

Evzayjd, zad taiv ovs ecro izuoh. Ydiv oyur ot ywe Vunkik wixsep. Xyaov om mmi wufr pd mfelwebm phu biv uhot ez tyu lipy nami.

Lis qro yoj qu gurtup iwta ugaoz. Wou zumy yaa fqo sin ybusepekq anx jgom er sideuwo ip njo hjiweiil xuchix fo idlud. Jjuan rbef op. Idz zau mib mui xri mayy. Siy jed rwe joz yu gugkux igdi obiot.

Toa xap guo hlif aremnIgHawokwi ur tap ta xzii mqap fmu cifmax ah vuvyot gal hth vuul iid AE can ugbale ta kdob gro ejijp rull? Mzu qaanur jaf vmuf jif voq hi wu punr watohwudh hoznil Purwudb Denqayu Pkabu. Cul’n ruxq idoiz mjuj uq jzu doxb eduvoye.