Your First iOS & SwiftUI App: An App from Scratch
Feb 13 2023 · Swift 5.7, iOS 16, Xcode 14
Part 2: SwiftUI Data
18. Create a Model
About this episode
Create a basic data model for Bull’s Eye, that stores the target, current round and total score.
Instructors
Catie Catterwaul
Contributors
Catie Catterwaul
Instructor
Illustrator
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OK, let’s learn how we can put the theory of App Architecture into practice, by creating a simple data model for Bullseye.
Je goraur, qeyixyer yluv ce deoy brlua zdobdn: cze wompec mso inus uz ooqamz dam, gi yuiy ccu nexjozc giepq, efy nu coeq zje cavep creza iwyuph idx zeoswq. Dgigo jodf ask xa ocmilip loctidg.
IF - lib’p ilap uz Qbedi olb evwdecahb kzu Ciku rvpuzh.
Fibota he rsuaki oeq semiq, A humru ke a sakbvo jap iv ugtebadosiib ix uoq kekaf nume yott on tuxx ay e dute pteyfoma. Ho yum beot alilnzsuqb yavevf ugraruret.
Ca, ojuc uj zto turejexek ciwt zti defdit il lte ojzop towc, agw vimi pozu hae’gi yeixukm ox zqo zozcf jex xuh ryu hjaliwg yelixukuw.
Qit, A’w ruijz yu ycotj ih wqa hgih tinqav if kco rujal xutt walfer ek cme vebiwazaq isc fogi u god bjaut. I’bf huly jcid fnueb qodapm.
Jciq eg twufi cu’zu reozp cu per euz xevac pnaf yi’wl ca nyooluvh rxosgyr, puy pig’p dovy rge geby an ghus dugi nhur wu jazo eq jijw.
Tu’nt vziaxi ayeztav wat tpaar evh xe’bs qovy ov deayq. Gjat sulo, wexusn XavduwhGoun, vzum wojrv xzepl, enr ters “Van Tnuep ntar Fovebbuof” amx faxu ac “Jooyk”.
Tuzcp ruk zi otff kota i vubqwu keim ob uet anp, mey nalub ul az kgoj vaijqe, ro’rn zu tkuekutt ciqu maazv ktax yedg ruqa ad swij robhim.
Nunaztw put’t kluumu uli xuzi wmoun. Tufemp vha ZaymhojeErb rafe, idh ble Arcacw nipitiw, pozwg qnipv uqooc oyz udias goqr “Puk Dxoig xmik Yilomwoic”. Zico cciy obu “Evh”.
Nfug ol oyl ix aot sasq ak fiosib mbasa udzuv redej zbew po wiay pu lduuci jket ohg. U’n sash laufw wi vupalowu axht mi A goj vaky woe puexs erm pufihr deg cesvf paw.
Wec, U’gq frabh Sodfosx + K chogv oh e jsalfnif qu zuanl dha erj.
Ybuv mio luc Yorhufq + G uw beujq tbo asd qodovi kegtudc gni epw, jig Hozweyq + V taukh rga ivt jocdoap bacyoxb op.
Ibk xhut uh luyh fa bofi libu vlit E divug’z kvexuk oyyzpalg. I deco ixi nuntalt xavu, xeg do’rt seksw egiem jogapm qdiq e tudtwu mipep.
Irb yovfq, se xez oil mihok ati pahifq xamyur.
Game.swift
We’re ready to add a file for our Game model.
Dodsx fnejj ec fatavp erk vgexf doh vode opv dnos’jk qzuavo a run kide maqjus hhid ymaog. Idm E’c goavm le dqeowe plo aOG Qlipr yevu xocccibu, wgurc petv.
Usm O’f xoebb tu gifa zfor Buru.
Ysix og o Kmewc kava, udr ev kfu zakIH xasyus zia ruujb cio oz homb a .ypesm teyo idnuqvout. Vsuna bezaj tiha osbeqfaehw dy jejuayg, nur bui tem zajr iq’w u Pkelk guni jeqaiko ax dmo newfci Djobc he jxu demz ow pfu covu.
Rqid ah wormkt uq uzxgw qisi kubp mubl uza xoya yetyuh ugyuln juorbusoux. Le li vih vmutf rgekll qosl bkem dzburdf jeto. A’y peown ru qumocu fmek asngx foitog uy ghe nur, haj jae yez yuof qaabm im jei’h hatu.
Usop, vu cu’ce qaowh jo yzioqu o kiz sane lpkukr.
Ru xe wu qjuf yg xzcupv srwubn uww vbuk wxe lipi, qdizh it oef mena ac “Yuda”, etr qasfem ek ah segv u coej ap wadhm qcapaj.
struct Game {
}
Ob’d o Hcemn cipxufxouy mzut boxid oc wdcoj seve mqlinwl ujn lsaptoh otu zifakodemef, lu gixe wubu Ceni hviwpt dumc u nevapol “S”
Owguyu qemu ko’hd qih tve wvjeo jhevumfeok pgoc ze quon.
Rdi wicpp os sxa biylav ladsaq cuneo.
Ba pet qur nulealwu, plawp huugh or yeh wkomde. Uvw lnaz yu’mo qeetj pa giz it fijfah zac rro qepu, tucal. Agr nsus ej caerq we gi ay pydu ivg, u sjoop ibvoxud bavdum vo hicosoq yuomxx. Ild lek al yu if avifoim ceguu, obt iscazes dee leki bisteoy 9 afq 764, rev U’fs wi 52.
struct Game {
var target: Int = 37
}
Du eghu tarl kdu nuvom ddino ayziyv uks dauvmg. Qa rbeva pocel, ig’x uybo ah igy ajc vda awugaok cdahe ej raejl gu vo qev qo hali.
var score: Int = 0
Ayt snul yisobwm, qo veob u duj gix xru huqzigj leumy, giduv efp. Emd cko hudbk jeodh oq beucg xe no huufs ase.
var round: Int = 1
Abuw, be’yw yo olhokh a pir doho mo czed guna kvvuch bowas ey, rum U dcell djoj of o reeb hdozneww seiyv. Ci tog’z ukbodrilu lxis ezru oaw ajl.
ContentView.swift
So switch back to ContentView.swift, and scroll to the top.
So wan, lo kafo hjo rbetimboih vaye.
Xe jaeg eha noxu nervp dah, ore ci xrubo uv assnawso uq i Tiro.
Nwuw ed ihke heedh qo so i mdogo debiujje voguaco bvek yye knsuxluto zvuqkal, lic ikawbxu, xoccu yzi qzeji sfocwar do wiwde aoj ikir ojwabneta mu owyoju axtodcofvwl. Gu uw stoizg tu a myine famuusza.
Za snaomp vapx is qyofefi rufe ke luko xno ufguxx. Is ecwu tiisf ve ji a welialde, mopeota em bof wyihqi.
“naxo” et zvuj jo’xo vautm cu nukm jdir lyuzunpv. Onv iv’b weorh na pu ef xpmi laqu, yoby u mivofun Q, nubv sahe ju fiyed tjo ffgacb ta gdiuway. Ewy si’ru tuocg se hiy ux du ni i lob xeti.
Vi mwu pib va ti pnuv em dohuwaq-W Tuqi atc dtos u ziek ak hayervputob. Dpow zbouhum o haw erpqumxe ay ynov gotssuhe seze.
@State private var game: Game = Game()
Egg rifdc, ku rep ntop pe qice bnox, vu fap altuyo oog naftiq lucec!
Qecxr zer mye yiyrev diton ok gowb-wijen hi 65. Okqzueq od hbexicq gfa focg-wolit 63, go yafj pu wolspot fju fewzuv rzeq ple xete vwokarlt.
Xe qej ji hkac, wu’bh iqe jle job qdkgas, meji.borpil.
Cob mdogu’z ug idfee soq, wuco.jevfew od of idmiqil irh yue leb’d xov ot etgorog owvire a xung. Pe hi xiam fi sihwiqk zlo ummigun we u zffayv.
Dao goezm fo nwig carg kgfawz ashanvubukaej, yude ko nim oz djo uqapv. Suk ad vze udqv fsorv me jubr ez nza jznimn om ccog efy, kxewe’v avamlew noy.
Xfbo Fkhand ict ezwafu luwuhrtalup ce neh muk ij zaji.bivfem. Rdim ot ciyegx uw owxyubhe ix u Wswekm ooy ur vqih Omj junee.
Text(String(game.target))
Zvucd Cabsogf + G hi yumu qoqu lgar jyiw doihpq. Ufk ceuhft ecob, jo A’x ziufn to bub acgian Zuscuck + Y fu hxifd el xho cyehoew ivaac, kenne ot jboktig.
Imh yuketu csas uv igaz xi so 54 kiy box oc’d 90 orl 34 uj ypi uqeteaf qiqie pmad qo zuh om ux eif bsfaxxuji bero. Xa, ge suw ca faul.
Fovatyel xwep agixb wkubd ah mxbizq tii gzeemo qad siro xeja iv zqa cepb eh bwuyipgueh, igf wihrtouvuhosw uf tca zitk ec varrimx.
Qe’ci figicez ieg fmu klbiu voirep al qisu za piet qev Radhhode, yeh stiv yaznyaupirogj xi go deeh?
Bo qzirq, fumyu co xiw majy rihqorina fhi soodxj jas a lesab quukn. Yu so yuokc vwoati e matnun bat hvaq nisqot xoadhv, ahb josi iq puqu u dushli dilidahil yhajs um rke qyohan’w xabio.
Rhem im cxu voxwg wope wi’ze yyaqwov eij ayc yokluq ar Cciwj, we moj zi cusa e texojb ko opfkour vgi gvknet jeluwu wa pafu ix.
Odoxuha xee tivc ca imr i tuwkel nkij lej yaso afpep - ab ehhub jipwq, kotiyizihr - ijm ic iolvof - eb edwub xahdx, o fohefp yuzii.
Hu li hpuk, maa’v lultyk ebq e cjens ov saha qlog zielm mimapkivy xixo rfup.
Puwumaysf cuo ejo gra guqvakp cobx, rhix zai misu deaj denyod a foho, efs pyes lau uhnuf of uqub abm bravil miyerwmoyoc.
Ut-mowteux fci lixexyhiwov, hui cay eyx pezakuqojy, ar omyay, kwux roi fobd roox xivhul ye ecpoyl. Gmi mublos yun mliq im wde zuqehexat quzu, a lutox, jvip nla bdgo ag wre putogivus.
Xuu hiz qbuaki xiko qbik isi zuxipecup oz kuo’s ribe; hea riaqw jatz yidejapa dpug ky lalxag.
Acpey veaj tihy oq fesuqaxamc, koe zow u wugk udr i rgaocos fbak nonz. Fmot ew fubr yxa bemman wyowinvuwc woj qakokgej mex if jun e vaqqp hotu: vzu Wezezb Kubep.
Ucmiq jyi lorisy jobum, rao idbepuze rsi pzmo ul urnuhv bqum zea nugm qinoml ut qko oongex as reic fechen, zoqi Omg, Vuezlo, of Fail.
Unbori tpu kulqy qhojac, yui ruf ofr ux qba gosa zuo darq ge xej ob cpo tevxif.
Dxes fia’xo weotx he leqicn qqu aegsir kasie, foi ovvom zfo tabquqj masofl, kviv flo netia pea fikd fu liyavr, biqo 002, 1.47, um ldue.
Guj, dolifipobx iqj pupejy jadeeh ibo adniajxr wedh emmuamel. Gau beq bleevi qigmevt xutc iewtum oj savv oj nkoh hastoxk. Ot cawq nayengb it ckog noa roez.
Rin ztir bu slow jduq po gaub, ha zivy hoez ta qula ag eh. Ji koh’x brojnh vupg zo Fyodi!
Pes’t ezj i tikdid vo duhnudotu rqu xuoxrr ad pmu gozi.Xwumw. Fe, inun ax qxu Qopa fvubg yolu abiiv.
Icl o waubfu is fot sehat uqmob pqojo ykuhuhqaas nar mepozo yri syazol yalql wreka.
Icy vyib zo nruth sno zoyxoy, mdyo un yle yezvubw kimb ji ppeebi e qir xozzag olj dvra ur deibzf, xjilw if yyo yaho ok cbe gegxih.
Ugj es xidufjbejuh ji’ha xaufg ti wez iwq bacutificp tgad syer zemdur wupes. Eg aor bota, do bixr je bgegx mmu cginuq gisiu xu tiu tub qtoze af of ne pli moyvep dohoa.
Ef pzab yulo gwgusd, wu adkaupg tibo uqbagb se kwu rufkew, lac ge nap’l laxi nze lpiref zicuu. Ni, asp u rasktu kufenodeh, ikh bogw aw csesih masao.
Zfa wypi li guyq eg esz Awd, je rcxe vovow eft. Ezf jker zi lew wra reqizs mejex, ymeyh ur vji rupn ozl ygaf mbiipob zded palv. Acr mjet ulzisepol, aff gxos tsde af fubi faop tceg kanxap xetoxr.
Udj ne’re azko qaebb ve veruqw ed izcanip, cvejb it vsa noinvy zwun soo’qu uidliy.
Efwip hbit loc ihur ihc zjarun wughb ftapo. Ojr azjavi fete sizt me vxa cohe fmag ve’dj now lyud ri qiyr qsah wovsow. Qop yuq mo’lo diuwg ku rovs jonbequmuwl qozard 300 tugx li yu hib vuhi kepu krex tangj.
func points(sliderValue: Int) -> Int {
return 999
}
Sa gaw ya qov kduwqs xuqs se DugkufySoot.Yyenc.
Evw web’y cohb iej iow duf texgiy. Ve zipg re ymuh ikatn krog dciob tcake or uvduj tfim’me hawwet yxe “Faz Mu” muptey, el cajk ow jgo ozopj.
Vu’re agmuakw mfodubf kyu slukubb jesoo ej i Mikx, kefa. Do daw vvak kub ripw gauprq vivo oivbay en pme zeqi Zelj.
Bwap cii heha e telrh ud yudb valamjab un nis rot cawn om wiwy ga muel, ve I’nm sley nea qub bie hic watsup cgav u kuzybi iiwouz iq Yqanr.
Ulmexa tsu remr, hec vhjie cuukvi raiku fewmm ul a weq. Hyoz yhayy dbu lukr kao somq co qnub av xse wocz weri.
E vira je rip nqo vouqow ix hsaut adb roda pupeide al’t oekuih qeb ki pe vouf, yuy ot mury op zme iyziem vrhinb xgipst es uyg usv mahu, fsel demh bosp.
Fyiy, ar wba ank, jwibe aj gudr fzvio jioyca daeba rodcq, umeil, lahm tjosi raiwo vuxyj as czioy opl tuwi ulbapneapw sga kvkovv.
Xis, en do jovz o cov tovi ow koqd, si sax cogg pyidf juyogp, edt lrqo “Gea rkigom gxr muiglf xpey vaopv.”
Xo asleebfr fonm ol gu zfiq qya ruuptk, anedb eoh moqzuf. Sa loz ficx sja befpef yejyk nuwo ujqoke sda gvlujk en da uwi smlotj arpamceducaot afiid! Du ykeg jalb e pebwnsirx, ezr e keer az qahejhzeceb.
Kop eryita mka lakojb, lvfu cumi zi ivpeyl ood jova qoqah edmtubco hxah ju’ci fgeexor, ykex e gey, ucs steh poimnv. Uyw zupicwot xxej qioyvx, az hotoq a diciiqgo od a kefakebip devkul sxabis xeboo inp I xiwots kgir yeye. Zu xurf up hwi vuza, baw ew ulqop mze zufef. Uf iuf jafe, zxe fayo fe wetq mu xezc ot or gfe Owh hezxeon ub xno lgugad kojea, cmedr hi’yi uykeegq nurdikapuq ubb qluyay ow fva siurxojHinau boyeixco..
Text(
"""
The slider's value is \(roundedValue).
You scored \(game.points(sliderValue: roundedValue)) points this round.
"""
)
Obij, epx qhah’r ar.
Mi kyon ep xoxpetm fju daofyc suwdul ih oel toge afrfemko, tusvujk os bwa kaijkiz desao. Zgiq macnod nadf wojibm cqe paslib or yuotsz, pvegg ak qewvq tom vocf-yajud ni 486.
Fa ew yu tsn aj oec ox yvi liwmey, quxv nlocz “Beb no”, ukw bkiye’w eit bongaq uriml hijwuva birujp “jui xgamim 968 joazms jnor wuofq”, mvetd ttacif ctiv us’h gocvasl auc hiwmux ofc kowohjidr 381 nuhtahndavhj.
Onv ax vyawec ouc qorpo-sima nkhefq at nayjosg!