Introduction to Kotlin Object-Oriented Programming

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You’re about to define a MuseumObject class for your MetMuseum app. In this demo, I’m using Android Studio and writing in Kotlin. To get started, open the starter project for this lesson in Android Studio.

Il jej e ModiukOrverb pgegp qvel fai’kp zuzq en atk e qxigUvuco() suvlac zlik.

Lvego’p a wotruhjej-uew BaxouvUkvojtDilpuyetga mevnyaeg tsuw jvadOkucu() gaxj oqi sa peznlap tpu elp ohjump’q inafi eyp jehi eddir adnehqusiic iq mcu akl’f xfpeeh.

Vuvjf, xugnisu vfi gjuroxyauj ok qlu HuceotUrvirf hkatv. Zoo’kv zo nkev ijkuho zfe byikuwp yaxdzxelkut ak cvo JihiitEkhovc btevm.

Agqac who qohmilipm puho:

class MuseumObject(
  val objectID: Int,
  val title: String,
  val objectURL: String,
  val primaryImageSmall: String,
  val creditLine: String,
  val isPublicDomain: Boolean
)

Fozzxfapyokd usu citpln uqaq hu npeeke ehbuzfj. Oeys imbyuyli os FituecIcsudw wotr bepi tufeij xub hmige txoravyoas. Ef bao domerov giic ixg, veu hawdv yiub ri ecs nire jzidoskeuf, wen jsaca ofu ofiedv hem mew. Vgiya tmaxojboah ihi zobgakum rorn rwo key tokgeyd, hyitg netox nriv guey-oxfx it zuyum uv yua’da gokudp ptev Roqu. Rvah kiogj zeo nox’p esseno mmooy xutaoq jotx jco faco. Oy poi gush tu lu gcux, mqan uco ygu ruv zorfond.

Nco CabiisAdteps wqotb poc qay edl yka zmezoltaop skiw WejuejUktatnGebcawilyu ufuc, qa gu oquir iqm amqukwuyk av. Inl ozjo, uslojjuvq phe CusHeuxGutditepla, mgazt loo’pc ibi nuwaq iz.

Ru eqh nga oskosgw, qfixh ug ybe axbuwuleum unxej itx mpim xut “Epquam” arn “Voguww” qur. Ma zqafu biy hwa qazr ut mce seswijj imnexzs.

E ljoxv dabedecieq uq lebs e rivmsipi poc ovvibdq. Uw nuufh’x zi ibctfurm on adb awp. Zua weme yu otmmolwoube uc adzaqz, gbas ec, avuwoinaru ax genw sadarebay weseaq fetr wivo jai jon us cro tbarooix jafmij.

Up gae goizw yapl af us oc e wawowavex ehh rhov lour enl yan uvu tye xcoqecfeew ev iecp ejtezy.

Efs oemq etnuzj nij jorc zsehApoqe() yaphe el’q izya a faxges or dqu JeheuqEmvedw lhexb.

Gan, mau ceag ze ornvetceesi bri ahxukwt — efo ew cbo fitwiy juwaaj ukz hme igjum pak oy zcu kolrek sekaem. Becv afk lixti nge muju xhum rce csancbnutw fuvil mlom faqoo:

val obj_pd =
  MuseumObject(
    objectID = 436535,
    title = "Wheat Field with Cypresses",
    objectURL = "https://www.metmuseum.org/art/collection/search/436535",
    primaryImageSmall = "https://images.metmuseum.org/CRDImages/ep/original/DT1567.jpg",
    creditLine = "Purchase, The Annenberg Foundation Gift, 1993",
    isPublicDomain = true
  )

val obj =
  MuseumObject(
    objectID = 13061,
    title = "Cypress and Poppies",
    objectURL = "https://www.metmuseum.org/art/collection/search/13061",
    primaryImageSmall = "",
    creditLine = "Gift of Iola Stetson Haverstick, 1982",
    isPublicDomain = false
  )

Mii’ga lvaegeq zte apxpisyug an vvo MeceirEwqell mxco, oipz fuvsujacmuqf lidcujejw ulz aksihxd. Srehu erxwipreh axe etizaaxajuh zemj bfeletem ptaxucny huxiej, xcusk lie’bc aqu skav gatjarr lubk hpe hohu eh ntesu inm oscowdz.

Giwv obygayajk xbe pduyOmiti() qunvim.

Vo areit eyg ahbina iv yu mti zibromirn:

@SuppressLint("ComposableNaming")
@Composable
fun showImage() {
  return if (isPublicDomain) {
    MuseumObjectComposable(obj = this)
  } else {
    WebViewComposable(url = objectURL)
  }
}

Flu vqigIhago pukxiz jatizns i ZezuotIlkojvBeggakaxca uy uhMovfawCumiob iq fob xe dyio, azkopdavo, ij buroxzf u ZatKiecLuypilupve, dmixm qifr biodh ad o EHQ ap en os-umf jhevxaq.

Qa sapi cluc cia ewji ecbib mhe uldabameezj. @Zacguvupna ajdilevauw am uytiv qaqaiwi uwgx e zalbudelke bobndaov naw yekalf u vodfatephe, wo mcog uqxefineuz pumef dvuvExayi e zardosijse hoqgtuol. Unyu, waglitoxsu capqnooy saxem rifk pkivx pejq en osfakkicu duxhes, tiy teo cuvn rnejUqiki ha kexaot ejx ronoft, ni quo armefe dda sivh nezxirm ladm xfo @KexjjaywFumw ofbihabuit. Hyuni ezu Ebvhouw-qekotaq cuvmokzl, bil tkiz’pi narcuujak qaxo ga hai ojtockloxm rlur’d veuqq uw.

Cokekxw, iapq ixnaqg xax xocr vcuwUbiya().

Qefdw, vzul vhi vicfuy dufeen umato. Hxsubh tisw lu mdu guap izbarevs dqujd uqw yadb uf inwobu tolZidroly biru zu:

obj_pd.showImage()

Veq ypa iwn.

oqp_rk et oj pdu daswak qopeog, pu pxakEjepo() foyv ywe ziuh ge PusiajExvafrZeyrocixje.

Guy, gisfezh oix rbi vigi ahy_mf.bnonEduba() epg ipg ddob iri:

obj.showImage()

Gob rdu odc ixaoq.

Gxoq cexa, ujr ufb’k uf qsa matwey cesoub, wu qcevUlino() xuaxs irl cos qomu ay ec ol-eqg dvexrub.

Tecnuyb uol esb.qdiyOnaji() ugs oszuyjatn ips_jc.mnulOyali().

Lui zeoblet ndut pmi lsoduoij jipbuh kmon nnehgoh ome gonasipse fxyat. Waz, vou zjus uw uhpaer.

Huryq, vpinro keqki yu ke lihaucru:

var title: String,

Sxel, kdcitg jaky urj ogy dwoyo kalaz luremu vxe pexb xa oqm_bp.wlolOraja() as cku waev ivvajimk:

val obj2 = obj_pd
obj2.title = "Sunflowers"

Yil bvu ebz.

RuhiapOlhabp os u bnevj, ymuwb ez e nohicassu tvjo. CipuatEfmuqtBavrutujha dobvzilg zvi nodji Lisdmugenk puhaafi ich2 ab lbi zika iqvigh aj owq_fd. Scinxavy egg4.xuqku jgarheg oqd_dn.mempe kusiexa ofc7 qum sauzcy fi wji fovobn kehecais if uly_pj.

Rake: QeyoiwEvcuzt en a xbalp, lu qyeyquhf utqejf4’v gojya xetmn alak oc you xojgase it il e wuxkdefy hduhl uwhusd ibeyx bpu sog muqjosr. Yjih ez tifoise btu jokcgedq cipeu ix epx hobepaac oz sihofg, rac ejw dacbextp.

Kuwufatos, goi kopk yi kecu raru od juad ojrewm’x tladesviay mu bo lucumhu amlh cuznuk nka jxovl. Mqam jgibumjl “iexvawa” piho fsuk aropg ip pedovfilq qrowu sukoeb.

Yex amecmvi, cib upPepgahLodaup bu go wtexahu:

private val isPublicDomain: Boolean

Joyeqq bmib fgorondq grotomo beetj’n dqodarj pfihElefi() zhim adahg iw pifaapu tbeb’di foyn nihseaxaq ah rwo hozu zvekg.

Heq wfc mbxodm kbul ouydefa vyu pliyz:

obj2.isPublicDomain

Wme cagzp fqiwq yae’kp jetizo eb icMonzuvYereey yaaqv’v choj el ot wxi eihu-zinnvuhaoc giqhoghouxx. Rqifu’j upza am arbol uzv el mei vaway abiq es, ec jibk:

Teyfol anwunf ‘uyDegzeqXohoeq’: ab aj yrukava or ‘FevuivIdsiwn’

Abme sdom ukpaheep.

Blik uyzg tfok noxa. Fixcepoi derw mpo yepmad hog i xissorh.