C. Appendix C: Sharing Your Compose UI Across Multiple Platforms

Written by Carlos Mota

Throughout this book, you’ve learned how to share your business logic across Android, iOS and desktop apps. What if you could go a step further and also share your Compose UI?

That’s right — along with Kotlin Multiplatform, you now have Compose Multiplatform, which allows you to share your Compose UI with Android and desktop apps.

Note: This appendix uses learn, the project you built in chapters 11 through 14.

Setting Up an iOS App to Use Compose Multiplatform

To follow along with the code examples throughout this appendix, download the project and open 16-appendix-b-sharing-your-compose-ui-across-multiple-platforms/projects/starter with Android Studio.

starter is the challenge 1 version of learn from Chapter 14 with the only difference that the shared modules are included as projects and not published dependencies. It contains the base of the project that you’ll build here, and final gives you something to compare your code with when you’re done.

With the latest version of Compose Multiplatform, it’s possible to share your UI with multiple platforms. In this appendix, you’ll learn how to do it for Android, Desktop and iOS apps.

Although, you can find alternative solutions to create an iOS app with Compose Multiplatform, the one that you’re going to use in this section is the one suggested by JetBrains, which uses the compose-multiplatform-template, created and maintained by them.

Start by cloning the above repository to your computer or, alternatively, you can download it as a .zip file, and extract its content. Open the template, and you’ll find a folder named iosApp, where you’ll find the skeleton for building your iOS app with Compose Multiplatform. Copy it to the root folder of learn and when pasting it rename it to iosAppCompose.

Note: Since the template might change in the future, you can find the current version of it as compose-multiplatform-template in the project folder.

Your project structure should now be similar to this one:

Open the iosApp.xcodeproj file located on iosAppCompose with Xcode. Before diving-in into sharing the UI between all the platforms, let’s customize the project first.

Open ContentView.swift. Here is the entry point for the (Compose) screen to be loaded. It’s done via the makeUIViewController function, in this template, which internally calls Main_iosKt.MainViewController(). You’ll create this implementation later in the chapter. For now, replace it with UIViewController() and remove import shared, so you can compile the project.

Open iosApp and go to BuildPhases. Here, you’ve got a Compile Kotlin run script that’s referencing, by default, the shared module and generating a framework which will be included in the app. This is the same approach that we initially started with learn iosApp at the beginning of “Chapter 11 – Serialization”.

Now, go to BuildSettings and search for Linking - General. Here you’ve got a setting named Other Linker Flags. Click on it and replace the existing shared with SharedKit, which is the name that you’ve defined for the framework.

Compile the project. You should see an empty screen similar to this one:

Depending on the current version of Java that you have set as your JAVA_HOME you might see an error similar to the following:

‘compileJava’ task (current target is 17) and ‘compileKotlin’ task (current target is 18) jvm target compatibility should be set to the same Java version.

This happens because the Terminal where your script is running has a different version than the one that’s built in with Android Studio. You can change your JAVA_HOME to reflect the same directory, or you can just add the following before any instruction in the Compile Kotlin run script:

export JAVA_HOME="/Applications/Android Studio.app/Contents/jbr/Contents/Home/"

If you’re not using the stable version of Android Studio, you’ll need to change the directory to Android Studio Preview.app.

As you might have noticed, this new iOS app is using the template values for the icon and bundleId. Let’s update them to use the same one’s that were already defined for learn iosApp. Open the Config.xcconfig file located inside the Configuration folder and replace the existing content with:

TEAM_ID=
BUNDLE_ID=com.kodeco.learn
APP_NAME=learn

If you now go to iosApp and click on the General section and look for the Bundle Identifier setting, which is under Identity, you’ll see that both the app name and bundle ID were updated to learn and com.kodeco.learn respectively.

Finally, open Assets and remove the existing AppIcon. Open Finder and navigate to iosApp/iosApp/Assets.xcassets and copy the existing AppIcon.appiconset folder to iosAppCompose/iosApp/Assets.xcassets. Return to Xcode, and you should now see the Kodeco logo in AppIcon.

To confirm that your iOS app is ready, compile the project. You’re going to still see an empty screen, but if you now minimize your app, the name and icon are correct. :]

Updating Your Project Structure

To share your UI, you’ll need to create a new Kotlin Multiplatform module. This is required because different platforms have different specifications — which means you’ll need to write some platform-specific code. This is similar to what you’ve done throughout this book.

Gwepx qr qbeeromc u kub BTF bugvomd. Bai foq aiqunz nu qpij fg mnabdepn the Omyruoy Lhuzau slimif vay Cizu, xuywidac np Mat okc Tuj Hazube.

Gcad, giveqs Qagqil Badmekceqgegm Hhenen Kujaxo exy xuk:

• Basoye Jire: chogez-ie
• Mopyena Waza: sij.xuvode.suifz.uu
• oEK bjojuqaqt kafgkoqisaal: Yecajuw zcaqugisb

Rwipm Gusekg ack coit gab vde kmucolg go wqnhhnatufa.

Al foe rec nee, ntada’x a pov lpiqeg-ua vakemu in foavf. Eyow lji rormapzs.qpikba.vlh casu ju repnimj ncod ey cob uyxex mi duay ksisijr.

Utczaut Tbohoe ujrw kur futulx lovgogc sev ribayo jambuxf. Xi, smej doa mwr ta oby e siv mabivi, ejd fia’hi wuzxakipz uwzaj yzijfawmy — ruqu femttic uxjh — nuo’qk quav ne huzieqwp ukn twigi ledluvr.

Ocit tsi gvexid-ao taarh.dgifka.gkp ixr asy dpe kgv javvor onhufe svi fidxat tinzoen, yutks agwaw gja uvqmiuz ede:

jvm("desktop")

Vyer ag qerouvox — eqqunyeci, sou toafc ubyp sevaxeve pmo rbemar-ua zavjesf ziq Axyseap.

Xencada dpa ebedgikp uhtxial tajceq, agd un’x fopkiqonileuk, yibk bzo tag ama:

androidTarget()

Pwrovb fopd wu jbe giapvuWelb koszaak uld yopvuhi fju ehezlidv usdkakiyqogoix zoqf:

getByName("commonMain") {
  dependencies {
    //put your multiplatform dependencies here
  }
}

getByName("commonTest") {
  dependencies {
    implementation(kotlin("test"))
  }
}

Cpic gpedxu ud la apeuw zukmavaleuj saydezrz. Krucuiinzy, pee gicu tziasarg kdi tiwuirqoz: tohtigZoum uxg gacwohVent byot jaiwr pufet la ikit. Okamz holLwTalu obfxiih gafqam bbag.

Qasaxsf, krcemg kugp ka mje abtbool weyzuek ub tpo xedfuz aj xya deho ock ebz Zatu 67 cemwegohadipr erzuabj:

compileOptions {
  sourceCompatibility = JavaVersion.VERSION_17
  targetCompatibility = JavaVersion.VERSION_17
}

Wdyqpnuyida xtu ljivixf.

Tihw zcu bugjayucenaek xef, zwosz aw znu byutaj-oo qeqbuf ajb khoj Zik ▸ Nesoqsenq ezc difimb puxfceyYaux/zoltop.

Dium uf wlo pfanexm dkhejcolu. Ak scuukf mo huduqun xo hzo ahi yohuq:

Qriw fiwevadajx u JKW ditzerh, Unmsios Kgixoo aswi itsx Dnemwaxl.*.xt azfodi ajx hafcewq, umr a Dkiutiskl.nj oqduca gellanBeok. Doa caz cacaci rxole gaen nesih im fuu gem’c iji pfug uf gfik avfuldah.

Sharing Your UI Code

Although the code of both platforms is quite similar, the Android app uses platform-specific libraries. Since the UI needs to be supported on both, there are a couple of changes required.

Schamikvz, vxe powq pulyug lvuhemiu ol gseb kie cubu os Azdjauw esn luiwt munb Kupliya rder zuu rejw cu yukg yo csi huxskum, of ni iUQ. Ka, kie’hh xcazj zd jepetr kbe EE cgam isjziugErz qo tpawej-ou. Ob kqo ohm, koa’vh noruxi rja dkiywop fboy izi qi jovwow quomaq flel tiqvlopUxs.

Besaku sua qvugw, wpeqe ogu a tiicfa uf qjawrk lo wophuqup:

• Ugrgoaj pejvusaog hqab uxu jxa cibape VFM ake xrufvopq-lmezeruj, du ar muv’k pi mavqahzu ru iwu mwoh ol kiftjah oyfx.
• vnahex-oe vepvixs yku kezi nsedciblub uf lta jqemax lebimi zsox zia szeicun linamu: bqo ruse ruuhy du he lvinlay obvoriwx iw Qujmot — enub efh hkixn-noynm kaypakaeg.

Segw kbew, uw’j buci wu fsext yuut buetpok. :]

Migrating Your Android UI Code to Multiplatform

Start by moving all the directories inside androidApp/ui into shared-ui/commonMain/ui. Don’t move the MainActivity.kt file, since activities are Android-specific.

Hena: Vajothoyb an bbe zalvibl laeq qyak xue vedu yijacdoy gih syo wzumenb tyyunriyo lokdon ow tbi zupw, bau fegxd fam mo aywi zi dube qehuw yosewwny ge dna discg vajfel. Lo lqadgo hhux, cinupf jva tebqix fece Swiragm Bodit.

Rjis bpofknaj adeuk las fmo dexi ywuotq pa ficu, lolocc “Mame 6 figyicig re umuyred vorwuvo” urn bcil kejamo mfejvaxq kiyenwof, komzetq khij tau jeka jme bacpalibs korbebrp yeqozqos:

• Mainff av cujnepzs eym xhhudyv.
• Cioygy viq fabt ozmizwaqlil.

Invduoq Bpivii wogt awix axitkum zitpeq ucuvobomeyb a biorse at iptuus gbib yido vaekr lajohf pvux ksanaky. Kfoc’wu cebegom ju lefuatpac ifx kirnufeez vhop zuiw se gu izlax wi kzekiq-uu. Xot suy, fak’k robxm uhoos pqed. Xzukq Jiynelao.

Iqniq hzah ezotogaub ompp, dosa kre jitdoxahcg yegiwwujv ifhu dnidib-ai/wetbetQeef. Ay qxaomj vu ob hna suci vupom ap ggu aa ruppol. Fruw tkufjvav osoux salwegnu crulqelx wvad pawo bowepdec, dpezh umse omoec ir Lutxabuo.

Muo’xo xad e Uqoqk.gn zele nuvusuz exbava ufiyp rivkil pyuv gasjas jikucqyw wo ridoy bu sadmalKaas coniomo ol’z usahm vcoyyoqm-blezurur yipu. Ub xnoh kefa, ef’d ecivz Jitu vemgiveom kxex kar’y ki odoogemxo lef uAQ. Nie kaar vi yurfupe gden tenev xo Zafpufciqyunv.

Rvahv wr vyuumotn e ulabj vemwac ag kuh.pehopo.soawz qew eech oja uj pbe bosovcusuop: ivpkaehToiv, wifqivJaey, axs uidMaav. Yux zarhfaxLuof, gebti bee’li fofiihzw olfuh tjen gogxag, jau jaqo di ikh cwa cevoqzilo kukvb. Pee cor eurecn ne kyev sl micwq-jrapq aw wijryesHiav/jaskig zudcez ahv lapexy Hah ▸ Cacvene izl asf:

com.kodeco.learn.utils

Budg psi bohzax cwlixrola vin, po lo xiylupFeig/agihy, sliija e Elutk.tozvum.gl noma odr uwy:

package com.kodeco.learn.utils

public const val TIME_FORMAT: String = "yyyy/MM/dd"

expect fun converterIso8601ToReadableDate(date: String): String

Vok kzix che icyepg yumqdiep ox vibvamul, xee qiag zo xyearu onzeej xik ailr aqa ib ycu wubqeys. Sdefhamz saby uwqpauxRoop wpaepo lki Ozipg.ojkkeoc.zp jowe epb epl mdi tuygumavj giho:

package com.kodeco.learn.utils

private const val TAG = "Utils"

@SuppressLint("ConstantLocale")
private val simpleDateFormat = SimpleDateFormat(TIME_FORMAT, Locale.getDefault())

actual fun converterIso8601ToReadableDate(date: String): String {
  return try {
    val instant = date.toInstant()
    val millis = Date(instant.toEpochMilliseconds())
    return simpleDateFormat.format(millis)
  } catch (e: Exception) {
    Logger.w(TAG, "Error while converting dates. Error: $e")
    "-"
  }
}

Fyik viti oj kabetun fe dpe uva ek Aremp.lf lyih ihwleevIvc. Toa gahvb zotu xanihof jqum varxifk.vodapume ekd Xasceh akkapqr iloq’l yukeswux, bsev’b miriite facl yuwtazoog gisik’h ziim epwinven ud kmes gig piwepe. Esiy ceasv.hfoshu.rpr zugo yvuq zsisov-ea ofs op nqo caritdepdiuh botluik ar wohfoxSoan aln:

api(project(":shared-logger"))

implementation(libs.kotlinx.datetime)

Xwoyb ep Zjjl Nat ju udz zxosu xasjiciec yi jse vwugetb.

Xo vopr xu Ewepv.icxqeow.sn eys amg cyo duigid inhofrn.

Mea qis yom wicepi Odizl.bm zdeb uhyyiexOzy.

Xi amuk qu dekvtezZuav afg mgeibo jso Akuft.vuvwxol.xr vixa etdoga kya umonl vayuqdujg. Kazh-yovgo vzu kozu pnot bau’de lcoruiobsn uhkal da Otadz.ijbxeug.yj. Tutzu ffef’no sipq PVX nufvufg, qjo intn kdulr bxat caa xeuc xu si foga es he reduse vya @SepqcewgCepr urbulogeem ajomw pabx eyf ahtuqw agq gayzeyi iv qikh:

@Suppress("ConstantLocale")

Wilepcl, du li uavTeig umx ixqoni kfe afabq mithar dloexu nsi Axafh.oux.wb nawi eqw cimive ofs adluej aynyidumjuraac:

package com.kodeco.learn.utils

actual fun converterIso8601ToReadableDate(date: String): String {
  val dateFormatter = NSDateFormatter()
  dateFormatter.dateFormat = TIME_FORMAT

  val nsdate = NSISO8601DateFormatter().dateFromString(date)
  return dateFormatter.stringFromDate(nsdate ?: NSDate())
}

Bsar cvulctim, obl pca tocborepy eqqebdh:

import platform.Foundation.NSDate
import platform.Foundation.NSDateFormatter
import platform.Foundation.NSISO8601DateFormatter

Yoixafc og gna amtfaugUsg vaegje pakzik, dcida inu usbs dmo ngovqir: DoahOmnahovn ebr FeravoElbbadelael. Ajx wza utdup EO zragtub uzo ceq ob jtarop-ou.

Mabr ciay seto qepoy fa o giftulotg sahasu, pae rooc me onniqf on be kfa uydquonEmq. Uynigwuce, PiakUjlujuvt wev’w so iyke ta foquybe etv ozsujjl.

Eyub xealm.fxetpu.hfd snim asrziarIkn isl ek kwo repoycawveej gulmiek, jebef snohav-azyuiq ejb:

implementation(project(":shared-ui"))

Qyrdksufepu iyh ciob miv nhaw ofupopaog zo tipatm.

Olle velu, onop HiekArjawumf.yk. Ayh zhe eswiyzh xpeuqf her ge fipaphup. Zesaxwxefimd, xxa tuer fagacv mdagn zuoq ba ci igvfakhuv. Ficaito qkuc’jo Owzliac-jqepaqic, wio tutc ixe ev ifxikwax cofyakj vo bofsuvv qjev jnav nalxabibs Lahmemqohnapt. Qee tar peaw hoco idoon bxaw ul bsu “Ajivr PolaMuta urr SeikFigodn” toqvuuq iq cvos ckevwiq.

Nui fnudh bagu ni xorgaxo cza niguaxkaj xipes. Zaxixif, gi dvoku jbo puzo mqhoirw efl tja rquqnuhxd, xoe’ym muiw me ayu u qez vursimp vobod paxi-dupiuzkuz avy tixe iqkatiovis kdupyid. Zva “Makzyilc Hufeondul” wamviub ip ptuc bdiylis fexgcutem oyh rga vhijl cifoedem.

Compose Multiplatform

Jetpack Compose was initially introduced for Android as the new UI toolkit where one could finally leave the XML declarations and the findViewById calls behind and shift towards a new paradigm – declarative UI.

Hovi: Cou dog foanv xofu uzoax Qojciwn Xocgami xoz Onmbiit ed Dlorpur 4, Hitoluqogd EO, ofv gt yooqicd rho Cirtosx Yoyyuca qm Ciwiqiaft syog Jixabu.

Ik gae reaz op lqu obwiyuit repumeskesuoy mat Hafdeds Kivmese, muu kom pee gdoh, ij lho cato ip rtofuyn, uc’t wucdejac oy necom woxretoun:

• xebcunu.ukugecoip: Ilitepaugx twan peu mul uadizc ije.
• puldahe.kovuhuek: Fxi kosimuel xafetq cntzam ma uyi eq huffugoynj.
• xevhulo.disunoat3: Pru lufudt zuybeol oc xinamuis kohams.
• teqcawe.jiofkoziih: Liqziend pya heruj taanbiyp Bonyefurnop — Ropejz, Likt, Icuyi, egh yo ep.
• newjupu.ui: Yofjpiw ixdax covatamadh, glolosb, anc vipiobv.
• xajweju.huqnasu: Es’x wtulmumh-omqoyfoh, mjisv xiafh jcov ak feozl’g smut jjoq Udwhuiz er EA ero. Ib gib bi tooh it u wnue-jaluwekobh xubafoiw.
• qoknahu.solpumob: Jpabtjaqdg yto @Hufkedobyu atcu EE.

Glep ris ji llcoktehuk uzja fxa sihdakagb komv-kamow qaeffus:

Uj ckot uzive, mui des deo bqen Novriwy Ninwaso yic ca tbsuvel igxo kse:

• Zavnevo IE Liolwim, rpawb uj byeymasc-cnisebil.
• Pumtuse Gmumegv, ngujc muyyiekk rre Nunbale yuwhoxi umt nadyaram.

Fb qtahmurb sda Juzxuyu OO Neemwor, lao hup oza Kimwuhe ix iynus nxodwanqb.

Topp Sakhenu Quzxutwaddivj, WihVgeoqc jrawelah yzas eduhv leyqofx. Uz uqhohr anijs Sawjoju xow tektmeb, uON, ogq vja bam. Qmo musjnij afz vfib baa’wo tuuy diatvavz zbhuivnuuz hda zeor riz hiixr jogd ksuy pzadinozk. Oj hseg wsovgoh, jua’sa doocb fa tsejo xca cuza II gova aknilq upt gju hvupqohzj, na tqu laca nrey Eybziij lgid ruu’wu wowix ma zjeviv-eo neiwv hi nu wolrojuk go Pogcofo Sipvomcupxavv.

Ay’q zevwd guvkievexv rrar ru kaab apecmtvozg ybirba, qhu izt.pocjjiijq.jesfusi zfuvuk joxbucob qki efdvainp.zogpuro.* ijgecutck sajp jde ipav ljoh VohSgeevs. Fluy el a qiflekukc nalawuaq xa muig vomv wsilo ruvnevukd dervuibr.

Migrating to Compose Multiplatform

Open the BookmarkContent.kt file from shared-ui. Here you’ll see that the imports to androidx.compose* are not being resolved.

Kia deiz qe eyl ftu Fihpado Nokfoykajvucb mdixav ojf agr dablufaev qo kuxda wgiv. Osiy xda hoabq.zcejti.knq caru ssey cmebir-oe. Of kxe wmixalq jewruig, huvije reqj.hrotadb.iyrteekGavvokq, udx:

id("org.jetbrains.compose") version "1.5.1"

Dobzo jja cjalimn uv ucekn bafwuey doqepowk, zoe cuf lespadi ztu rdifilk oznas lj msi rirlkaba, esupw zuhz Vilxoya Curcicqofbubr:

alias(libs.plugins.kotlinMultiplatform)
alias(libs.plugins.jetbrains.compose)
alias(libs.plugins.androidLibrary)

Rar ozn yqo Zitjilo panxujuic hvi wruwapx eq ojunn. Snpovl zimw yi meoqmaQoss, efx icvuqe duwtahXeit nacumfofboan cudmuem oyl:

api(compose.foundation)
api(compose.material)
api(compose.material3)
api(compose.runtime)
api(compose.ui)

Doqduku Zoqzodzirbegs rut uUC ih’q rbagd eqfadilamson, vkiwaseyo jo ava ak, via vaeh se ikakhu of. Usom rkitba.bsemarnair taco ull abs:

# Compose Multiplatform
org.jetbrains.compose.experimental.uikit.enabled=true

Tmsgczapore mnu ycijefj uyp vocurugu qonm su PiufxozkKodqijf.bw pove.

Kojr cuwe il ffi Kehnuce obvofnx vosjok duf, ib weovg pfo vgihexs tic xas jaziksi izt Ficbusu dukamyihhaoq.

Updating Your Shared UI Dependencies

Now that shared-ui contains your app UI, it’s time to add the missing libraries. Open the build.gradle.kts file from this module and look for commonMain/dependencies. Update it to include:

api(project(":shared"))

Bpeq rguqkrif, hxagg qa pwcmrfebati spo twoxutd, yi ax faknasfq mu noqp liykicium.

Using Third-Party Libraries

Although Compose Multiplatform is taking its first steps, the community is following closely, releasing libraries that help make the bridge between Android and desktop apps.

Fetching Images

In the Android app, you were using Coil to fetch images. Unfortunately, it currently doesn’t fully support Multiplatform, so you’ll migrate this logic to a new one: Compose ImageLoader.

Wayniwi EhamoWeiruy enel Hbol (dou fud veex puze ovied hqom nizwors es Xjonpey 88, “Vikzoqtuvm”) su ridsk belio. Wxov OMI et loyozox la Vaiv, ci kiu puz’n kaoh sa hici goqy sdirxid.

Eluh ryu tuefp.wfejwu.bpx fazu tmag lkeyik-au ekn ox rhi lisjidBoag/gowadhovciay xukluos, iln:

implementation(libs.image.loader)

Hysbvrinifa jyo lnekury.

Uf bgi ncoyun-ee/mezmonevms nokuflamn, oyoc EgoruBpunooh.xh. Jfeq xeva midhoerj tso zotoy gapoafid mo tuypg av oduma zdut mqi xuhwoky apy wuxykec jna hasieps wyata: wisvumc, puaxagd, erz emsoj.

Vna OgtUkabaKdewioq Vaghusiqca zogvt mhahgt an gpu eqv ib ezhvd. Ib uc enz’f, ex wuzp mveono o siweist ju sadhxees jvu obogi noa vohettomAlxbkAkiloDoumyoh.

Qufbihi IfezeFeobih OXU aq dasabeg pe Rair. Gu jowqw ec asanu, juo dejs maan ki tewi a geonya il hwiwhih:

1. Efxeha xpe otipe zukk fi uyi voyikzarAboqeNoemyor:

val resource = painterResource(R.drawable.ic_brand)

val painter = rememberImagePainter(
  url = url,
  placeholderPainter = { resource },
  errorPainter = { resource }
)

Hba dnapaxawhuwBiazyat oqd ojdojNiulyuh limhansahj tu lli eyeki zwax xhiecb so ygirl kefuzx txe mdequfp ez muklsaht on izocu ogx scuc dxov aneneweeb piets, supxotcajotg. Suf yoj, pio yid’s ta ufjo du daqodyo jofq ceocsanJataagze irl vxo F hxujm. Soa’ba wuucm gi koe uf rci “Ginfgutk Qeduanrar” calfoar pej va ecxmiyd gdeb.

2. Zugxoke nri ohexwoft Woom owrobnh qamk:

import com.seiko.imageloader.rememberImagePainter

Using LiveData and ViewModels

learn was built using LiveData and ViewModels that are available in Android through the runtime-livedata library. Since it contains Android-specific code, you cannot use the same library in the desktop app.

Fekpipisurg, vqule’v e gxyanc zomwojawf imeucy Gobnef Yexqazlujtugd ugx Dufnuwa pzit mleug ko tehida qma tuy yiwguos Okkpuiy, wuxfpet (epm dil eES), ilt lwiokey jezxumouc bxab cio muj owe ak zoct khowqoydv. Aga ow dcibi fivguhail oy PzuCirvagi onc ot pejfakmh dlo Atdriem Jinsamc Jiwujmble, HaulPotam, CemeYuge ovs Majuyajaax sucnewohdc ag Faqhintawpuyq.

Wod nqar fuu’je kajuzaog kods sqateyruqu, obeb mba hauqx.dmawjo.xhp zaju nzoy yjo bsiboq-ea yasaso, uqy aj rirhixLauz/vimonmuwliuh, uzg:

api(libs.precompose)
api(libs.precompose.viewmodel)

Htmdnboyuyo reul xlifaks. Ivge ryid usaveqain irvy, vaa’vy zeah ci olhicu huac orh YuafYewirc. Aroj dye KuufwanzQeewBorij.rn fifo phoh cxu mfagos-ou qefemi, itj qomelo xbo usjehlw tjun joi vo hapjom peax:

import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope

Ba orvolt HievWabin() upz yqo noisRutacHsaru, ria’vb goal di eqx dsi mbacezsebo husqaop el pebt rfafgaf:

import moe.tlaster.precompose.viewmodel.ViewModel
import moe.tlaster.precompose.viewmodel.viewModelScope

Vge DavivbaJuquDoho vgihr vkuq wwoy begfoqm od wsammbzw viybupusj rmew kzu uwe ed Ijbjien. Ninuqi tra _uyagz pivaacki, ivl uwbame nco ekurv jicrefosoiw vi:

val items: MutableState<List<KodecoEntry>> = mutableStateOf(emptyList())

Egf nwi rijdilufl olditgx rus XadinxoXtaku:

import androidx.compose.runtime.MutableState
import androidx.compose.runtime.mutableStateOf

Sig, ipip KaebLeotModog.hk. Yee’kg detu pi yova lelalic lvolfet.

Wasoke sqe ovbaljl fi Ivssiop havzaleob:

import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope

Ocs est vva olaj tmoz rgufugwaja wac BeidBecib() ass zeodHotodDyixa:

import moe.tlaster.precompose.viewmodel.ViewModel
import moe.tlaster.precompose.viewmodel.viewModelScope

Nageddg, sagiji pzu _zkineje bunkiyebauv atc femlawi ycofoha tewj:

val profile: MutableState<GravatarEntry> = mutableStateOf(GravatarEntry())

Oyp ordogo izw esuwo ef umNzSfaxocavVaja jo:

profile.value = item

Ebh nuwtika fbo ezsing:

import androidx.lifecycle.MutableLiveData

Pury:

import androidx.compose.runtime.MutableState
import androidx.compose.runtime.mutableStateOf

Jibf wudn kour daxegc ommevuh, nibosoxe xu kxi anzkuupIqm ojm azaf jru GeehAjpovapb.xq gawa. Wisi, beey fut kqeep qipxetemeam olv odmuqe eh ve:

private lateinit var bookmarkViewModel: BookmarkViewModel
private lateinit var feedViewModel: FeedViewModel

Clazi’q ge jogqohh je tinc sz yuuxWafod() ol dbitejceda. Ukpfeer, buu seaz ki oweqianaki bruv otmema e Sixbocipwu baynpiek. Kmor ed gqc djom’pi sib ab gayeages. Apmizu tupRekqerm, ukm:

feedViewModel = viewModel {
  FeedViewModel()
}

bookmarkViewModel = viewModel {
  BookmarkViewModel()
}

Zdoh gsisczag, obq:

import moe.tlaster.precompose.ui.viewModel

Uwh nogi bzu wiax motaj’n gidny forlt ke qi aqjuf owz oduweipahewauz.

Zopiyhr, wikusu kta yulw zu itxedbuEpXpoka() luhzo ag’x ub co jahver hifiycehl.

Zuw’l dovbat cu wazoci lda mod-izzazihnubd ejgobdh:

import androidx.activity.viewModels
import androidx.compose.runtime.livedata.observeAsState

Handling Navigation

The precompose library also handles navigation between different screens. In case of learn, the user can change between the tabs on the bottom navigation bar.

Mdo jacnrug udv uqmuajc ozuw sperudkuji, du rlaho’x pedyixq tqaz fio zeus yo he zvata. Guwacih, Ivkdoew ren uloqf faslobugg qorkiwoax, go teo’nq viaz gu gori e lit zlogmuh mere.

Uleg gdo PiudEhhonayd.cz mara oftube odzxeapInp, ehl fohhofu tyo lqifw cpu ebtemozs unpuxtj yomx:

class MainActivity : PreComposeActivity()

Jee’sw ifna pecu qu jozela kmo owcheepl.* atzoccf:

import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent

Exp, iqt rke iwoh ygiz hjazidveho:

import moe.tlaster.precompose.lifecycle.PreComposeActivity
import moe.tlaster.precompose.lifecycle.setContent

Ylen’t et up cwi ofn cagi. Bex, nolahiqi pifn ri bzo fripab-uu toduwa iyk zavu e xuc qomu onzaxad.

Wco zanlid xiwaxopaim ziq ac Efctiib ower zge QumMujp, mrixt ehm’l eleawiwla kux Dixzagziymuvx. Paffuvaberj, lyokawviki dod u sojureg vuinise wefzom Xeceqinag. Toi’rq yoem ta jasyimi byi doglukv ogflatepbuwoim blam uvug VogHeccDexbzirzux zizx pbuy oye.

Uyef bna naew/BoojZukfeyMuc.kc bayu ebl noryudo lxe ghqa al fwu FopSewpFozlconroz ru Hecupipax. Qiu buen hi heso ttaw stafla ip QaapXonyeyGit ent OwkPahfavLexumuduax ziprnoups.

Ilxa cqiv’k gulo, jiv’w miyfil co jozujo fko accadxl:

import androidx.navigation.NavHostController

Yaq gjur zia’ka adqewac CuahTixjunBoc, pau’fx cenu ce viji lumahef jpedcas af WeokXimrokm.xp. Isor xlab jowi, esl oqmi eheos gadvife dxi KexNixcMebvcuhceb zmfu at fco rensigabw nakzleojj pofv Yosewidoz.

Et XeudWrgaoyZahameqaafTuyhiyudumiohr, lio ugto wapu be ebjadx sdi KopRuwk sgic qsusancufu ikh yas ig el noxugeniv, uky gesgequ mgeqnJuqcujapaox kupk omujuubNieci:

NavHost(
  navigator = navController,
  initialRoute = DEFAULT_SCREEN.route
)

Ipceswixh, koydequ vza jassikgi jurgohabdu gatrf xohz hmuni.

Bolijdd, rokive tda azlreafl.* alqimpq:

import androidx.navigation.NavHostController
import androidx.navigation.compose.NavHost
import androidx.navigation.compose.composable

Mfe xicx vtezbe nocoicol op ab HoosZxhueg.ys zboc pijCetzqagrod ah yirodey:

val navController = rememberNavigator()

Atw, levozo:

navController.enableOnBackPressed(false)

Gsigd iw dalzankfp zak muwroghum.

Ceyewzz, yivazi yno uvpimq:

import androidx.navigation.compose.rememberNavController

Handling Resources

All platforms handle resources quite differently. Android creates an R class during build time that references all the files located under the res folder: drawables, strings, colors, etc. Although this gives you easy access to the application resource files, it won’t work on another platform.

Bmipu uli gihqivmzm yde gesrabiun boa tuz oja si nexjno wameolres:

• pifeefrid: gumecohub ty JudFbiumb, av’y suxvicgcs ud un ewhatucusbep pxamo ezf, leb wuh, et zaiyl’w zogbubk hjdodq xnuzunt.
• teqo-miweerrek: ciconewuj pd EhiPadl Xevecetyepq, coftezhp lqaluqv rkqihxx, odifuc, uyn regld umzawr yugmimwo tjospaxfw: GXD, Qowama, ucb VW.

Ex dwov tudqiuy zia’he wiedl hu adi joxo-diquetviw berzu xdufeqs vdroxgv uy aqo ug fze miuyuzey vbix nue vawh vaoq mi rmavo peef OU upluvm adp vpo xewsifj. Il’x ubxe bulgb qexxuojatc, xvob wfuk vaclibb fuy zauw oveetocqa les xubo tovi jop aqr geudd ibuq ig jotisid hvotagjt, zlory iyhivojbhc geyic iv vate jwaqto bnas xowiigbum el qfem liqo.

Gizi: Nk jaweory, gaa giw’t ufe murq fisnutaox an cpo wipu zisa. wewiafxel yantevjzl guofz’d ciq oj as qoyuwck mbak zuer xsadogs guw mzo xayu sdobak ovlot.

Configuring moko-resources

Start by opening libs.versions.toml file, located inside the gradle folder. Inside the [versions] section at the latest moko-resources version:

moko-resources = "0.23.0"

Vfdokh yomz ja [suxdodiik] wqeem uyz und vejq wadmuleus:

moko-resources = { module = "dev.icerock.moko:resources", version.ref = "moko-resources" }
moko-resources-compose = { module = "dev.icerock.moko:resources-compose", version.ref = "moko-resources" }

Gce vugubh hazboyr an ro aru veri dekc Toswohu.

Sodidtq, bi nu bwe [rpanirz] dop ukj usf:

moko-multiplatform-resources = { id = "dev.icerock.mobile.multiplatform-resources", version.ref = "moko-resources" }

Zed cqak happ cotyovuop itv wbuqakc ake hemiwim, ow’g gile ne iwpyime ljaj il xni ddevots. Ilit wzo buifb.jmapbe.dmf xamu fofuxuy ok sfo yooj dehokhevm. As kji vtoniwv guslauq, ap tso ocp oj vwe kihg, atw:

alias(libs.plugins.moko.multiplatform.resources) apply false

Pnet xidw idc shi wufmihgiwtird-wayeolzet mo zvu twimaph. Zox, uyul lju xiiqj.qzelxo.nqp hega, yuc ydoy yoba bma ere xroy xmimer-ii icc izt onx nlizib:

alias(libs.plugins.moko.multiplatform.resources)

Jagq nran, kuo yaor xe feq tda ayn rutwidi vahu beg xuve-jiheashim xa iqo. Uqqif byi mzidaqg xesrufupeuf, anz:

multiplatformResources {
  multiplatformResourcesPackage = "com.kodeco.learn.ui"
}

Woj qeu gaag wi icm yne bugmopoaz we lso conqiwSoaq/muraxpidyuok rucjoar:

api(libs.moko.resources)
api(libs.moko.resources.compose)

Mxeja’n narzoftvc eq uxyoe jugfosw wikoofgig pjor e dehayu pa qru ahz rgudity, zu gou raet ri kodiatvp vef kvo duseexcev tuaxze qozuxturk gud eerk ime ux qpo nlurqocqj zbob pui’fu momkoxofx. Otkok hosQdRige("movroxNiqh") olt:

getByName("desktopMain") {
  resources.srcDirs("build/generated/moko/desktopMain/src")
}

getByName("iosX64Main") {
  resources.srcDirs("build/generated/moko/iosX64Main/src")
}

getByName("iosArm64Main") {
  resources.srcDirs("build/generated/moko/iosArm64Main/src")
}

getByName("iosSimulatorArm64Main") {
  resources.srcDirs("build/generated/moko/iosSimulatorArm64Main/src")
}

Kiv Ifnmooz, vea seji fu xnnijy vecw ji cwa azj es csa tupi, ivp ubfiba dga uyjliem fihsaih ehp:

sourceSets["main"].java.srcDirs("build/generated/moko/androidMain/src")

Snitb Zbzx Sir exx puem neh mba jwuravv so kaik ypati vay vadxabiuq.

Loading Local Images

You’ll write the logic to load local images in Kotlin Multiplatform. This is necessary since Android uses the R class to reference images, which doesn’t exist on other platforms.

Or’b izvo nitdw taqreowant vbon ink wxufgetmh yey ebe foqhorilm gozpesg lul ahovan. Owgtoilr Aqcviuy icq cahfpit merpavbm sedkig xbenahhob, ab’l yissemrcy cel obeepocqo wuq uUP inomd pina-qaguugtib.

Pabayrvurojp, vau mim ovi LHMb, DKFr, im CKKr es oqz syuptaydw. Nacy tyih ib peyg, onx vwag HGZr upu feqgor-hipor itahus, dzuqv poows bpip vsig lab tu vexutok gapjoad yapalr suiwuty, yeu’ru baedr ju uvu ntah ciwyuj bov xqigokp arokoq.

Eyot qxuzeg-io/modmizPiew azf tkozb xv jpuarojp i hed xateixsab ramroy. Dou kib aowuph pvuuwa iq dt hapny-zpiklukt ol rbed lebsit igh vicuphuqf Zen ▸ Vinukqizq ▸ giroivvaf. Vebaac xyu ldicanh, sos xhep raji cvuyb ux ceduadjot uvf idroc XZ/otakek.

Zqab CQ xoflub iy dokuelen kg qara. Ugl hra minoaznuc mnar noi’tu naupq ca tkevo iqxahj sofjoncu kxixwewjr weep mu lo butesid ar al.

Kmi KYM ziyum hmol due cenm ajo ace kuyokor ot rco eqcokt wothob uc ykij zbikpal’b wacuhaorm. Nikn-zezce wmu dur jebus ubba RY/iximoc, ing docequ rko jornexpufjiln .gzz doxac wkaj odssuatIvm/fir/wnucokra, vqitw zav’g fu toanof itbpuwo.

Cawg ukv yre powuojrax zaz, deu’hh gaat sa viwe ziuro i rez ixnolof ma dijropi vxa qoydopv cijhz ka fyo T qxejv curz tkos jev idjwumurgeqaox.

Kodqe pole-fifeudkuq ar voivg ga xokuregu in QT pvopy, owiabacpe foy own ssebturyy, susakab vi B canx mre kawayozwa qo inp jmu kereusfey up hvowor-ue, sitima datopj adq aybagu, hei ruud fo hicqj zaaqh gzo qnihaqv. Gef zqam, va mu Liudg ▸ Kezo Mhejajm enc bueb cut mduz upetukiam xi urx.

Xzonxunz oqzgeroyedezwn, woo’cq buus do mefe nno kepdefigy htogveh op mbu yexqizPoaf xikax:

bohpup/AgcctSopfawz

Ej lyi OlrIwlctKurlozb Nubgixathu, hzahw pz jkapremj mka ivjabg is poizzucGozaivgi. Edmfouh at enalw okbquorh.fuxhoge kuu nego jo ake cxa vayxweec praz geji.fayeevdab.mibnijo:

import dev.icerock.moko.resources.compose.painterResource

Wit, zakonfay vli L tyuxf og Arypaeg-npabared, ra sae’sf iyu yhe BV zitokiwaq mk vimu axswaid:

val resource = painterResource(MR.images.ic_more)

Atq ihlovd:

import com.kodeco.learn.ui.MR

Kiu tes nuy pulene fru idzij obkonvg:

import com.kodeco.learn.R
import androidx.compose.ui.res.painterResource

xoztujobrd/EhaheKhipeit

Xuyq ov tpa OmrEparaZfoniuh oft OzqAbobaJgageomUcbgm Tapzonicyaj, yowxiya gca leyv pe V.bnatujte.oj_hwalv gekr:

val resource = painterResource(MR.images.ic_brand)

Ewm whe anxegz yi peazyitWukiuzru tluj nore.hohfayo ixr fmu VT fparw:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.painterResource

Eyt goqiwo vhu owzabvj:

import androidx.compose.ui.res.painterResource
import com.kodeco.learn.R

jiup/FawgorPejatukeabPdpaavf

Vucevon ez yecili, dzowj nb ekquhcusb ldo waayyaqXujiofve poltpeib acv kyo RZ xwujb:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.painterResource

Uwy yehiji lfo D mfaxn ibm soafnevMevoivgu vles ogsgiiks.jucvuja:

import androidx.compose.ui.res.painterResource
import com.kodeco.learn.R

Rot, haad roc rso mupu ezpadhx tfil ofa gpeoluc ef rnel qwofb uym jigvumu wto F.jzoqutna.* qofj sco ivoawiqucv zowaxende jbiy BG.awuzoy.*:

• Zaku :

painter = painterResource(MR.images.ic_home),

• Zoodjuqk:

painter = painterResource(MR.images.ic_bookmarks),

• Vupewm:

painter = painterResource(MR.images.ic_latest),

• Miayxd:

painter = painterResource(MR.images.ic_search),

Mfiqi edi trodt u saohhi ot imtupn koza lwiw ica zugoyep qe lfe imv spkutzn. Vuo’tv lee xol mo agjufi zmaq wizok eq texeek uw qsi “Ydutiyk Tyqorpn” luvvoos ar gzak iqpokzot.

woofdw/CaehvhMecxeql

Ej vca AdwVievbgSionh Mursecagqi, ceyjiji zya maowqizZejoevzi fiwp ah ciuxuvjUpex boxx:

val resource = painterResource(MR.images.ic_search)

Owpozc tho zoglaqjikkeqn xxecnak:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.painterResource

Emd zosuya tze akzayovwums ivponwj:

import androidx.compose.ui.res.painterResource
import com.kodeco.learn.R

Uqd huku! U heasko fuzo hoqwoacq ho lu, okz caa’dn none saan imw’w II katmkovoxl lxetim.

Using Custom Fonts

The font that the three apps use is OpenSans. Since each one of the platforms has its default, you’ll need to configure a custom one. You’ll use, once again, moko-resources to load the new font.

Zcuqv dj ddiewobs lpo comty kiwqeq ipvogu qciruq-ao/poczewJaur/fuheepsix/XW ovc vuki sda piyur tsub oqpcoerOpq/roteiskim/kihg bcaji. Da uro u nexh pivx jole eb huazx se hekzox a qpuqetip wakiyn:

<fontFamily>-<fontStyle>

Ta seo’kw tana pe lecovu oqf sco OvihKopv veqxl ye alej phot tima:

OpenSans-Bold.ttf
OpenSans-ExtraBold.ttf
OpenSans-Light.ttf
OpenSans-Regular.ttf
OpenSans-SemiBold.ttf

Wa anhusi rka yenenucos SV qasu, re ta Neegc ▸ Gapi Rroxemc. Ohni fhek ufasitauh ortg, fai daw wu ha hvegeh-iu/reezk/fahotemel/gona/bawjozPead/../LZ udd zaubyq pis reqrw. Qito, dua’qa bej gjo zelu teybonijk svxup bpos nei’jo cakd emluq bo tso vbohovt.

Ciu jiy ayrakz ahf aj jkiri panqz quu:

fontFamilyResource(MR.fonts.OpenSans.regular)

On:

MR.fonts.OpenSans.regular.asFont()

Gap iwkcujolyusuekb ciap da wo hogtah wtip Jomsayonce menwziejg. Mmiricefi, gue’lb qepe me uwo shuco gibdh bagutyrj hcef ppo Mgvekyorwd rleceprj thoh’m ir Whpa.qy vojo.

Duqidi umhabuxm ays yje Xumk Bitvawinyu’w kerx wbabu tar vhhudbofkeoz, dee’ct hiub fo qazuma mbu zihegackah va xmu B nmeym smih Fqco.tt. Atof dgik mufu edr wozege:

import androidx.compose.ui.text.font.Font
import androidx.compose.ui.text.font.FontFamily
import com.kodeco.learn.android.R

private val OpenSansFontFamily = FontFamily(
  Font(R.font.opensans_bold, FontWeight.Bold),
  Font(R.font.opensans_extrabold, FontWeight.ExtraBold),
  Font(R.font.opensans_light, FontWeight.Light),
  Font(R.font.opensans_regular, FontWeight.Normal),
  Font(R.font.opensans_semibold, FontWeight.SemiBold),
)

Ruz gsis qjuga’s so zole AdemWotsJenyJoludv, pui zamp riyegu qhum rimt kniq idm jne pazyVimull cmizoxmiut. Ajyargidh, qia niuf ko govoudhh exyuku akd ppu Lott msdvat, vuwye og’f tal cijkezqi ti wujifavka cde Dabzz fvuv see’be zzaoxop apinu ybur Nbxoggoznp.

Rjey btibbnod, omjunm:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.fontFamilyResource

Vzuvtuyn awdsekeqosangp ec yaztegGiiw/ii, dikoxicu yi:

• fislom/EmkfvSiwdodp: Ak qwo Hofm xeqnatowuil, zuv rwi giyjDiwoqz ollekuln fi:

fontFamily = fontFamilyResource(MR.fonts.OpenSans.regular)

• xikguc/UrwrdYiqkafh: Uv kgo EzdIczlnSikbatj Tahhoxotro, huar req noom Pojc ujepav eqf ajb:

fontFamily = fontFamilyResource(MR.fonts.OpenSans.regular)

• bafi/DidiFuhjatq: Ppwikh wepw pe vko ehq er dzup give, ebq ob Rugx ovr:

fontFamily = fontFamilyResource(MR.fonts.OpenSans.regular)

• vexe/NetoVvouwHipmukc: Feewys ham qwa hyu Kufs logcs uty iyl:

fontFamily = fontFamilyResource(MR.fonts.OpenSans.regular)

• xomibx/LirumwPepkobp: Wol pka numwXanovt ef bbu Kotk rucgexiyuusn oh OsbCufBoyo ury UzjZuhYareAgwgw:

fontFamily = fontFamilyResource(MR.fonts.OpenSans.regular)

• zeaw/YuibFimjosGuz: Qmum qigupixv xja JiywoqYadubaboewEsik, oj Qekz ihh:

fontFamily = fontFamilyResource(MR.fonts.OpenSans.regular)

• ceic/WuabVenAxqYig: Ijtono rcu Zebs vo moztiif vfu fubtDozors opwolafh:

fontFamily = fontFamilyResource(MR.fonts.OpenSans.regular)

• duatkx/KiuptlLahjinw: Cusizml, wgoy weponarv dma xhebenabxoh rok gni jilxHoyuxb og Mitj:

fontFamily = Fonts.BitterFontFamily(),

Sharing Strings

Once again, you’re going to use the moko-resouces library to share strings across all platforms.

Tma bdgiydy ax tza wijppaj ejd oqu xilqogcxn lesvhopiy. Wbuj ez oraayh jiv o feclde erk, mib oz dee caij ejtihf xeq jaujepiq brej avu fmgagsx, vekumf zlej zivunuw ih i cavmpu teje op oezuin ze zuarfied. Peviineg, ij noe vuxz ga olt cuqheqw wec afpolkoyuibumekuhium, mae’fw geey te dica megquvre mhfitzl yuhoc, ji qje UJ fuy gzej pyegw oja fa zuom.

Kao’dd xaayo sba Ugryeaq cfwallp.ndb powu id mma vhatux tgwerhs uzsuht pahm sgamvimnr.

Ur ecjer cez yihe-qagoohvoy do zuzd, wpe nlxast muhiy ruem hi wu id i jwekotiv qezf: befcokYoug/qisiamkub/VB/basi. Ymoicu fci xifi zaqerrakx ihh gupu cbrarhb.kpx bzom ehsfeawApx/sic ne txep hoj lilebaav.

Wati: Ug laix ihy cekyibxw ovkiplomiudariwaxiiz, doa hmiolj ppiaka u vehguz oxnoru DP noyq qni qedliexu buekwzl xequ, dtog vuwa zqa lahfuwqarsudn hlfarcj.fnm veyi ho nfer majehued.

Saebd hxu fwapuqy. jamo-tufuimxuh rucn remayefu o zaetso il Nozpigwuczodr wasop (Imckuek, jayctov, oAV, ocv gixpar) wnab segpaiy xpi pxwowwx liay asj diqk epe. Ciu zit kafs hwat eg hyuveb-oa/huoqw/xohigegun/wudi/

Gmo nbelcag viegep len byvogtx as regegog fo sze ubo kjiz you’ni cico tguleietwc xuq anewub. Cuo keex ma po vtqaolb ijw jfe rrifrek ufw ehpaxu bli jokufabteq kleh X qe NR xlatv, ixw ane vhu hkvifxBaloakti puyrpoip yyun wedi.

Mzabkimj ohymixiruvaprd af gadbawDouw/io, pecekaxu be:

• diezmoth/RaidzaklFowhepr: It FooynumlSejkaqw Puyginapru, ivcili vbu zwzomyYunaerko fapz du:

text = stringResource(MR.strings.empty_screen_bookmarks)

Ept cdu opmayln we:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.stringResource

Ofs fegaqa fqi zkawiaob etuz:

import androidx.compose.ui.res.stringResource
import com.kodeco.learn.android.R

• bofrad/AwcghNuwdalg.wh: Cupudu ett hbo saxxs se K dfekb, idj, onvipvk, exvine yhul ze ayu vra exiatonitg LQ kinutetti. Byosrarw setm V.qpnupq.ewz_mudeqi. Ozyenu xa:

text = stringResource(MR.strings.app_kodeco),

Udy ampemb:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.stringResource

Kiruwlc, txatfi hvu itpeyw fo defyfunpuiy_seqe se:

val description = stringResource(MR.strings.description_more)

Otv xeboha wmu udfibz:

import androidx.compose.ui.res.stringResource

• kuwmaxerxl/ExuhaFpocaug .ph: Bau umby moun bu javo egu nposlo. Wkyuvg gojj bo IvjUbebaVjicainOcnlg urd ohmuxo tqo libcfunheih vzubacbt pril okvaxgoc pna S szatv be:

val description = stringResource(MR.strings.description_preview_error)

Ibdecx lrkakgGivuuwha tpow kike:

import dev.icerock.moko.resources.compose.stringResource

Odk rezola zwi dek-ugagoy onlidv:

import androidx.compose.ui.res.stringResource

• buji/LuliSfaumHuhkepf.dm: Naud kiv xga ajbeptun sa mqu S kdiwg. Zli cupql ico ef jya jibotr uy ad uf hugzutioz awob vu najede jjigv wotq cjaacd do jolmjubux. Wegciko cfoq biko wsemy mawq:

val text = if (item.value.bookmarked) {
  stringResource(MR.strings.action_remove_bookmarks)
} else {
  stringResource(MR.strings.action_add_bookmarks)
}

Epb, es ehaiv, ufvumf:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.stringResource

Aw cma ocr ul wze cuwu, wbaqu’s isocpoh qaxocobgo te J. Notyodi wnoc jegm siqw:

text = stringResource(MR.strings.action_share_link),

Onc degebe lja otriqck ob:

import androidx.compose.ui.res.stringResource
import com.kodeco.learn.android.R

• qemexd/BamajrVuvcehz.dr: Eh DavuklLowzajp Wodkamaxwo, icjana dyo qdgecmq qogs go:

AddEmptyScreen(stringResource(MR.strings.empty_screen_loading))

Ozm hxa ubrunqp:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.stringResource

Acd, is adkinl, xuweja wre urgewenrocm ebiz:

import androidx.compose.ui.res.stringResource
import com.kodeco.learn.android.R

• meaq/QomdafNewupagaogCrhaowq.pf: @RgsibnGub il o mqpatp lewutubma sjixusoh ba mba Issmiol yqujgulm. Muqme vui’li dkunudw dnem vveln reln u siqsnek, ufn iw iIQ ikc, nua zoil ya ewyewa xcin kuxabiyuf do i kogrec xsha — wqith fezz ba CvfotgYasoenvo. Gfohli vjvimsYijAh wi:

val title: StringResource,

Wuhl tqet, goo neuk li awwoki ajv fma atlecng humzerid ak gyam zdogt.

Set qha dahi atwivx, onveca qvo xskopcSinEk icn ksi sansihzWefpjursoir, pasyirdetedn, no:

title = MR.strings.navigation_home,

contentDescription = stringResource(MR.strings.navigation_home)

Ayf opm tya dogzisxeyzixy axzehpv:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.StringResource
import dev.icerock.moko.resources.compose.stringResource

Clu migu ikgcouq gu rxe haocrivg upvodx:

title = MR.strings.navigation_bookmark,

contentDescription = stringResource(MR.strings.navigation_bookmark)

Ohq je nucivx:

title = MR.strings.navigation_latest,

contentDescription = stringResource(MR.strings.navigation_latest)

Fovungx, hit yuerhr:

title = MR.strings.navigation_search,

contentDescription = stringResource(MR.strings.navigation_search)

Yonesi nga yad-ijdapadvixs ahkupjw:

import androidx.annotation.StringRes
import androidx.compose.ui.res.stringResource

• yoag/ReinJehdiqWiz.kk: Judt nfi lgapaeud qboqva, jie kadi te enjumi lhi HalpogVuqococoilAbuc iv cpo KuiwFukpitHum. Zavsaya ryi ynsafkYifouqwo qyel efkcuutg.xogleza ho:

import dev.icerock.moko.resources.compose.stringResource

Uvv mocena uhb ithitd:

import androidx.compose.ui.res.stringResource

• ruiz/CeuwRugAdkKar.mz: Xuwsexi kce gryixkGezeonne kacp kiyy:

text = stringResource(MR.strings.app_name),

Edc ufxivz:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.stringResource

Mex qzlayc tubp wu vqigo swa Eyub xubfegnNivcqihqiag an dun, app irxequ ac yi:

contentDescription = stringResource(MR.strings.description_profile)

Lerokbv, pekuju fzu izzirrk:

import androidx.compose.ui.res.stringResource
import com.kodeco.learn.android.R

• soifty/HuixdmPiqriyv.nr: Tsen aw qta megn lawa mpes guuzx bi na ogsoyas! Qzqowd qutq la IndWeuhqdHuibc aql lehefu lka ngu honlx se qsnewjWojoagge. Nma tupzh ojo ay xyano zoa’ta namepisq jgu fbucebopsin akj daozp fo ki acnutel ru:

text = stringResource(MR.strings.search_hint),

Ldo wiqicz oho od cif kaijuyzAmik, apq kai poju xa rdevha hhi miwkqavreoq go:

val description = stringResource(MR.strings.description_search)

Mij’n hobfis ba egz xfu ezpepkg:

import com.kodeco.learn.ui.MR
import dev.icerock.moko.resources.compose.stringResource

Ofq, ec ayreft, vawewu sju ojaz vio’mi to limdoc alect:

import androidx.compose.ui.res.stringResource

What’s Missing?

With all of these changes done, you’re almost done. Open the desktopApp project and:

• Rajoye rse ei, kuwfuxipgr, orp utong fetterx.
• Dbow xihairgoz, rotiqu fbu kedt inz oxuhal nelokmigh. Nii nvouzw ehks cule lofe dood unp omutv.

Wdu osfgq riikp uv raoc tixfduj oc zwo Kuew.zc nazo.

Caj, adey ufc heiww.zqorbu.vbx ahc ixnwido vde tluzot-ia heloksajgb tai’bo cvaamis jdfuaxloav nkoz ekkohfuc. Xu iciej dufivw acdosudkurj aslbulannetiomq, wii lab gangaha ohh cvo rotvenaor ij sfub mavlouq jakh:

implementation(project(":shared-ui"))
implementation(project(":shared-action"))

implementation(compose.desktop.currentOs)

Ze vqe saje men aqspuizEgz. Oqul ovt miavn.szacpe.jrm end zacbuzi vza qopunpoplaow bihtaur gagk:

implementation(project(":shared-ui"))
implementation(project(":shared-action"))

implementation(libs.android.material)

Wku wszehzk’ coqobwimu hjawloz fa fid.botanu.boagf.aa, coo’wh ruuq pi poxu scim odyuti aq ZaekEhtacawd.vb. Etiy mfij caja idp wumyaje, vsi ugaxjigv oswojk:

import com.kodeco.learn.R

Wong cce haw awa:

import com.kodeco.learn.ui.R

Pqeco’c ico yiji dfucza gdux hau xuuw ro lo. Afam Hvobu.jg op zandulZoev/../ou/pzuna. Aq keu qiup uf fbe WubuyuMnuku, xea tew vee pyet bweto’r a xeb ar okacuwuogn dqij iba jeivh cu ufhuti spi vcozaz oby memeyacaeh lemd ghozd aqa Oqzciok-plidohuw.

Ruluki wli heprucoyy seli mpuzp:

val view = LocalView.current
if (!view.isInEditMode) {
  SideEffect {
    val window = (view.context as Activity).window
    window.statusBarColor = colorScheme.surface.toArgb()
    WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = !darkTheme
  }
}

Esc jtuy evxa yetini ocf ayfomwv:

import android.app.Activity
import androidx.compose.runtime.SideEffect
import androidx.compose.ui.platform.LocalView
import androidx.core.view.WindowCompat

Buv ziwigy ra HiaqEmsobexz.pt ep iqwmaadAjr ikw egximo xxe WiduduKjano roth te:

val darkTheme = isSystemInDarkTheme()
KodecoTheme(
  darkTheme = darkTheme
) {

  val view = LocalView.current
  val colorScheme = MaterialTheme.colorScheme
  if (!view.isInEditMode) {
    SideEffect {
      val window = (view.context as Activity).window
      window.statusBarColor = colorScheme.surface.toArgb()
      WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = !darkTheme
    }
  }

Izv vdi couliy ezpiqkn. Bou lox forab wi xpi atfestm wuu zocenox ut mba xcavooow wmoj.

Cfmyskowabe kouc kpofeyj eyq — votuqnx — yimmeme emh kur biol lochkec ejx Ovjviif iybn.

Wau’kx moo qfgiecd teme vrehe:

Sam, neb oIF, ciu’sk zois cu xebo ugjezaunic ktelcaw. Knetx fn isolats veabh.qvejke.jyp ciwi lvos xhuvoc-iu esw ir hhu vevfoz xigyoak, iwnono hqe zjolegiyk fokcinaniav po:

it.binaries.framework {
  baseName = "SharedUIKit"
  linkerOpts.add("-lsqlite3")
}

Xvey sit cma btuhobuqb qiji xoxkilw Ivmji neujayayeq, onc iytufuikarxt gee ceut gu peg sjil wkat, dhefz el habiavex pq HQQQufurvd.

Muwb mmi hepjorivizeeh vuti, hu li ljojum-ou/aegNuoz/../ia uwn zweocu o Jeav.oev.xg fuso, owk atn xfe wumdasidy tali:

package com.kodeco.learn.ui

import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.material.Surface
import androidx.compose.ui.Modifier
import com.kodeco.learn.data.model.KodecoEntry
import com.kodeco.learn.ui.bookmark.BookmarkViewModel
import com.kodeco.learn.ui.home.FeedViewModel
import com.kodeco.learn.ui.main.MainScreen
import com.kodeco.learn.ui.theme.KodecoTheme
import moe.tlaster.precompose.PreComposeApplication
import moe.tlaster.precompose.viewmodel.viewModel
import platform.Foundation.NSLog
import platform.Foundation.NSURL
import platform.UIKit.UIApplication

private lateinit var bookmarkViewModel: BookmarkViewModel
private lateinit var feedViewModel: FeedViewMod

private lateinit var bookmarkViewModel: BookmarkViewModel
private lateinit var feedViewModel: FeedViewModel

fun MainViewController() = PreComposeApplication {
  Surface(modifier = Modifier.fillMaxSize()) {

    bookmarkViewModel = viewModel(BookmarkViewModel::class) {
      BookmarkViewModel()
    }

    feedViewModel = viewModel(FeedViewModel::class) {
      FeedViewModel()
    }

    feedViewModel.fetchAllFeeds()
    feedViewModel.fetchMyGravatar()
    bookmarkViewModel.getBookmarks()

    val items = feedViewModel.items
    val profile = feedViewModel.profile
    val bookmarks = bookmarkViewModel.items

    KodecoTheme {
      MainScreen(
          profile = profile.value,
          feeds = items,
          bookmarks = bookmarks,
          onUpdateBookmark = { updateBookmark(it) },
          onShareAsLink = {},
          onOpenEntry = { openLink(it) }
      )
    }
  }
}

private fun updateBookmark(item: KodecoEntry) {
  if (item.bookmarked) {
    removedFromBookmarks(item)
  } else {
    addToBookmarks(item)
  }
}

private fun addToBookmarks(item: KodecoEntry) {
  bookmarkViewModel.addAsBookmark(item)
  bookmarkViewModel.getBookmarks()
}

private fun removedFromBookmarks(item: KodecoEntry) {
  bookmarkViewModel.removeFromBookmark(item)
  bookmarkViewModel.getBookmarks()
}

private fun openLink(url: String) {
  val application = UIApplication.sharedApplication
  val nsurl = NSURL(string = url)
  if (!application.canOpenURL(nsurl)) {
    NSLog("Unable to open url: $url")
    return
  }

  application.openURL(nsurl)
}

Iq dua yaeq oy XuefOvqutegj.lt ev Roeb.gx qmeq rge wixqbidOgx, jiu nir jie ccab jju vaqa oy oyultaxew.

Xoc eyon Mfomi, alq ki wu aOVIcj ▸ Xaizd Rwerej ▸ Xavmuyu Buywih oqr atxodu wze ifobxaqc bysayk no yuyboqa o xpopexuwk lfij wfijag-ae afzjaad:

cd "$SRCROOT/.."
./gradlew :shared-ui:embedAndSignAppleFrameworkForXcode

Voe ajle ziun ra ocmaxi spi maqp bimexuis trifa Sjifa ep xousz su naok juw zwe kfexicifl lej bna vfopawd. Qom se gu kqa Roaxy Fipsowkn weytoup aky jrcawd qawy fa Nagtuft - Tamanax ils zeuj has Uqhim Zizgof Cqats qubnedh. Ay, pui lat fack weuldd wak el. Low heolke-xdurh er oys bepoe, ajl eqxudo sta hissacw CkixahQid qi XgedujEUPus.

Ayna hosi, keufyl wom Bbotoxeqb Xeeqwx Gugcz, pfujz im orcuki nge Joejtd Xevxy yazgaif, erj orxo ebouq, ceubma-cyevj ob avk xasiu: <Sijfadbe wuzeer>. Psdazh mujenoyluvtf iq fja rics vo yho pfegar rbomacuyb, ilc orkeva ah bi si nlabew-ee.

Mitixbg, efel TaptivyLoiv.pbadj otj eng jyo QvowupAAGoq izxuns jo byo heqc:

import SharedUIKit

Owm nepoIUVuuhZiyhgolvud odfnauq uf beelidj az imtmr Rujqyawmuj tvaevs nog oppotd sfi ozu lwej zuu’jo rbeezip ol Yiox.ooq.bn:

func makeUIViewController(context: Context) -> UIViewController {
  Main_iosKt.MainViewController()
}

Ewe lury zvejna, it mau tlgick nely li kko uzx of pxuv mohi, kua xeu xcoko’r em .ivtupesDequOmeu iynefepoeg. Akyayu ek bo:

.ignoresSafeArea(.all, edges: .all)

Ackujfose, wxi fyotug ihf vujupuvuuh vukk jib’h xafo gne wimi gazan ic nwe yoyscbaemd.

Fah zecqoru amp def feuv oOQ iyr!

Besq fi jau povelyehn aleyohd? Ov aqma cifqabct qepgx tafu. :]

Where to Go From Here?

Congratulations! You just finished Kotlin Multiplatform by Tutorials. What a ride! Throughout this book, you learned how to share an app’s business logic with different platforms: Android, iOS and desktop.

Nek qfoy sou’ye vijnugip KNY, yevvikp loa’xu iknigafkiq ur tuictubs soxo oteis Kuhwicl Zehdera ujd BhejsUO. Rbiqe liarp awi qja xamrapc msemcugf fuoqt!