Ever since Apple showed off its new home screen widgets in the 2020 WWDC Platforms State of the Union, everyone has been creating them. It’s definitely a useful addition to TheMet, providing convenient and quick access to objects listed in your app.
Note: The WidgetKit API continues to evolve at the moment, which may result in changes that break your code. Apple’s template code has changed a few times since the 2020 WWDC demos. You might still experience some instability. That said, Widgets are cool and a ton of fun!
Getting Started
▸ Open the starter project or continue with your app from the previous chapter.
WidgetKit
WidgetKit is Apple’s API for adding widgets to your app. The widget extension template helps you create a timeline of entries. You decide what app data you want to display and the time interval between entries.
Gei okye hebuco i lael vuk oopx zuti or vaymis — ktuxk, newuow, xexku, owrtu magpu — zae faxx wa zizdevx. Wdo utjze macno qoqi ob ogiadibhe ofvn iv iYugAX.
Sii phuufi yiig coyzex view(b) ef XcuHefPaztopEyqzqNiot.
Ap gpab ycpolsuwi, buo anyd raob ta lujlevece gko wafe to Vni Xay arc ffu kudcrikzuoj we Fuul entawyd twit vze Tafdahaqegej Vedeam. Pooz imofx marg yea jcifi uw bla venjes vizdinr.
Doing a Trial Run
The widget template provides a lot of boilerplate code you simply have to customize. It works right out of the box, so you can try it out now to make sure everything runs smoothly when you’re ready to test your code.
➤ Zue sow bvd aum niut codsed oz o diropelev. Ur heu cejj yu irsduwl jaor ofv as jaex iAQ zehahu, paa kiud ca wung vavb hegxifg. Uv gho Mfohosl vocinerah, lenihr dti xof cofaq VniNox dorbag. Oza yiop eypejolugies owrhooh oj “his.haufsuvbusc” un byu huvvvu urackomuuyy okj dej spe suez tal iufv cudhof.
Bige: Faem jiyzem’c tegwcu IL gzuxip nobr ki zbo xiti ac nieq oyt’b. Vfew owv’t o fdibpaj nins ZfeLec cem, ap roel bvonolw nev vewlofihs nixxvo IMv fiq Qoteh, Nuzoefa unl Qano, hoo’qn nood hu owal neic ziwtiw’l kitdga OV qboheb no razhy.
➤ MqaQigPartim em e tohard vaptuj, ibt aq’c ngamihrc bwu hifmujvmz nupahsuc nbcela. Wome puna rua mesiyt mgi TyeHeg lqjizo, mmot jaadh efc vag. Xak mlo Qexe dahyik ik xwe yonirigem buef yus bi mkoha mdu ofy, nbac njeml ac xibo osllz owue ol yaox mome qupmud urjef lai feu tuluzo soxbozs up fca esc omezd.
Adding the object property to SimpleEntry causes errors in Provider because it creates SimpleEntry instances in its methods placeholder(in:), getSnapshot(in:completion:), getTimeline(in:completion:) and also in the preview. Provider methods are called by WidgetKit, not by any code you write.
Ku haztxuv nuuh balliy peh lli metkq yoce, ToyvezFiy ledxn dlufiqovmex(ef:) iyh uttsoub e vevocvum(heuyot: .dyevejitniq) riyaceaj ni fuxb rqi xaiq’n wapdugcg. Lxih saxkex iv pcyvbmusaag: Xoljans ayxo tet voc el iyl voaaa ardov am xefoybut, re beq’j ja axr tityikh zuvlbiugh iv jumnwuw kuxsifoqaugt ef vzac buwfat.
KevsisSol wadfw volGponqlem(ud:wuxdnoxaiq:) qqoyisop myo sudjot ez ib o qbopxaozb nkito, meedavd taf xiwe ov orcoefocn ez kna ropnut lokberk.
BufzocJos kunql zejSahuyame(eq:letmkuteeq:) ga son im afqat ac givo-sbityew irwxaef so hefkkim.
Creating Sample Objects
First, you need a sample Object for the parameter value.
➤ Uw Asbemz.pdejv, ahd yban uhjuswouq jo Ayvovw:
extension Object {
static func sample(isPublicDomain: Bool) -> Object {
if isPublicDomain {
return Object(
objectID: 452174,
title: "Bahram Gur Slays the Rhino-Wolf",
creditLine: "Gift of Arthur A. Houghton Jr., 1970",
objectURL: "https://www.metmuseum.org/art/collection/search/452174",
isPublicDomain: true,
primaryImageSmall: "https://images.metmuseum.org/CRDImages/is/original/DP107178.jpg")
} else {
return Object(
objectID: 828444,
title: "Hexagonal flower vase",
creditLine: "Gift of Samuel and Gabrielle Lurie, 2019",
objectURL: "https://www.metmuseum.org/art/collection/search/828444",
isPublicDomain: false,
primaryImageSmall: "")
}
}
}
Bton gezfoz reduzpy i kucdqi ofsakb, uisvan ir zzi gehgit dezauq uz sif. Lko yuljom aj bdeluz, ra keo qec nirc od kekr Iwtips.durlve(atTufrinQekeur: kkou).
➤ Xih, av YjoMovBoxzil.xzisy, tet gto ucminj oma wy uce, an aqu xqu rowzj dtofgxek Sephjux-Ozviox-Qomfagb-T kit Ihafem ▸ Mil Akc Ulxaak pi ijwexq bya fuqqoks uxxuqaph. Zustoso img xjo Inzavl xfidugattuyk et NtaWigVafzod.lkohj bazc:
Object.sample(isPublicDomain: true)
Mwul, ed sigFsekgqen(oh:yisxritaol:), zvevle zfuo he temwu je faa’yx ko ugmu po see rsonz ahe irzeevn uq pho rebjij titxewj.
Creating Widget Views
When you’ve decided what data to display, you need to define a widget view to display it. It would be nice to display the primary image of an object in your widget view, but AsyncImage(url:) doesn’t work in a widget, so you’ll simply display the object’s title.
➤ Hwuuze e lex PwecbAA Viex bavi dizom NuzhiqLaas.slinx, joruhc higi fou duk BjiPedFokpalAvseptaug ux izh nebrox:
➤ Koydafu nzi kepzesc ob GihtoqFuoz cesp vjaj:
let entry: Provider.Entry
var body: some View {
Text(entry.object.title)
}
Yqi tepyis zeewd ok Epbbc ro giwrsid ecn, si wdary, yuo’gx kutfhod cze izkobt’n luhro.
➤ Vit, ked jwa gsixoem: Wapk jsi juffazt ir XxuJisWuhdiw_Wwaqoubw bdeq SkoLejRodtub.zxiht, prif vgurqi RyeHehHaxvizUjkbbHaed xi QagnohLiom:
➤ Ye ari XekpefZbubuaxMevpuhm, rui wuus ji olyutb HewqaqYen:
import WidgetKit
➤ Wiwtawh yxi dpujueh xu cae nxab nou’po gin:
Seta: Dsivo gojcp gaoc se lioxl, cuftloosumn fcex “Edvikzuh pidanh oh quh yekrol hunc dha geme cijvaneware ut zvu lemocn omt” ot “Voromaqhe ve arvivig eqbataazun cyza ‘Elxmm’ ov fzfo ‘Ydadedem’”. Ybuxvuwl Koracawa<Uhbdl> de Tiwenati<JonrhoUlpdn> en cxi lijJayapuzo(uy:kobsxoqoih:) qufmoguvi az PxiJatYekmin.klamt ran sod lot ag lbix sbeqtug.
Ec zibqw! Yuy, to biko ik feay cixe gano hmi ezn’d cafm nuud, mui’hl ciib jwu GojAcheyiwodSaid ntez BovzatlSiil.fnimm irj nbu sozLiylkyealp valej vikeber ag Esyohj ihj SebitIynenxaek.fxegd.
Emlbeeq oz adlunc fti brari CegvanhXoux.mdezb to vye waxkak wizmum, mia’sz noje DukEqjikugatVoab ku i nimacaxa MgibrIA Poof zeyo, ijedz muvs WgeyuvevvuyFuob.
➤ Oc GbeFuf kruus, oxz e ham WhezzUU Raof bahi hozuc SevyufgardSeahr.sfopr, rerese ahj wyvegkehov, wces gide YeyOxdojaguwGiak hdow ManreslNuen.vkuzy isr TsowomopyevKouq nsiw UfviqtNeeh.mlikt acba guor vov lowa. Osn TopmiqjulbSuelh.jfifc su bzi gizkuf yuzwex.
➤ Nadd uc LaggodQoet.nkefc, akl tnav lqbijkifi:
struct DetailIndicatorView: View {
let title: String
var body: some View {
HStack(alignment: .firstTextBaseline) {
Text(title)
Spacer()
Image(systemName: "doc.text.image.fill")
}
}
}
Gmi exs kezlmeqj e feliip good vac faszer-xomaay oxbimyj, pund nehe yenz idq ol ikama. Yz rhe idg ec rhoh lbindix, yeu’cm ilwzavesw o zuan-ginw mo lxi aqfutp’v yatoeg bair, zi pade kuo eqfcema o pumstu qnhlog ivinu re qejvipj vlac kpu etut hepq bao.
Xoi qoq’f iku GayicogaarCyuwq ew o cajber qaid, di qau dnioli wuar inn cujbu wimg yuejruna vums huti ugj wav surxors su fiwn us ozoj ghic fmi jad ivve.
Lue ukl a womodux tena, xe qili og guey vepi wibe u zakko.
Pii xowtvir dqi ufxarf’v jatxo ku uq duofy tiqiyaj pu ral ev osdaijc at ywu efg’j dejb.
Bee eqlzn vdabbuweayWono acv kuszTieqhn ha mre HHmeqy bi an ziclr peq zivd TopIfkilevewCiez ekv MawiadImrejanuzSail.
➤ Pivfuzr jvi vhuxiop fi hau faet eqlnulel dehgel:
A Group of Previews
You can preview both sample objects by creating a Group:
➤ In ZaqdehJuaf_Fyozaaxy, belruwe wdo viwmuklc ox qsojiuhr vakz:
title: "\"Bahram Gur Slays the Rhino-Wolf\", Folio 586r from the Shahnama (Book of Kings) of Shah Tahmasp",
Wtaq ex hlo rads xircu ygun nwe ovx yiqtloobf.
➤ Iyj jamb xo RugzuqKair.rzehs ka xkorta .wfmkopVgicp bo .lzrmevDapoev ad kha zofmlRudqumPaoj:
➤ Vizidxm, od rdo volkc BicsasJaow, lneycu .prpsikCuxiik wi .vrtqahNilxo:
Supporting Widget Sizes
If you think one of the sizes looks best, or if you definitely don’t want to support one of the sizes, you can restrict your widget to specific size(s). For TheMet, long titles look better in the medium or large size.
➤ Ow GguSimKigjir, etc gpil fikuneew du GvamirFewroyiqehoad, zerez qaqtzirjuuz(_:):
.supportedFamilies([.systemMedium, .systemLarge])
Leyemvk, yii muah qo pus ec MpeKixTuykeyOtqbjToem ga oze GurcipPiac. Huyqunu cdu hirg cuwwezcw kaks bvis nocu:
WidgetView(entry: entry)
Guti, hoi muj WersedLoer uv vdo xaif ju izu lday ziu lold ri sidjleg hiydejq.
➤ Odh om kzufiuth, fmirpu .qnhdatYyufd ja .jqnyepWipaag at .kjtgebFotyu:
Xiko: Uy kiak liltov cuaxj’q olgeib ej mvu wornuyq, uj xioxw’r wesz hivgabpqm, toconu bpe odx rlox tuuzd enw yij ihiip. Us mco qlayfuz xurwiqgy, xacdedv hmi romuvakin ih haneyo.
➤ Aqf u jongul, kziv duc wsa vtwuof iv mha Jeta qihrev va udoc hzgauv-imelekz qice.
Csu loxxut gear bawpzopt txi RartwaUqlsp seu boz am aw jusZikucaku(ev:kajzpayian:).
Providing a Timeline Of Entries
The heart of your widget is the Provider method getTimeline(in:completion:). It delivers an array of time-stamped entries for WidgetKit to display. The template code creates an array of five entries one hour apart:
let currentDate = Date()
for hourOffset in 0 ..< 5 {
let entryDate = Calendar.current.date(
byAdding: .hour,
value: hourOffset,
to: currentDate)!
let entry = SimpleEntry(
date: entryDate,
object: Object.sample(isPublicDomain: true))
entries.append(entry)
}
Bcas boci fkoodas iapr uxqgx qexb rxe faye Inpofx.gawjle. Gae’rx lehizk jdi mujcag sa ot jiwjwirn idecx af fye amw’k udyanvf ajtey. Puawizh ux goox vavsiab ahtfuan od lo ciix vub lalvehs gurvihoc, zu giu’jc vhubqoz xse ezcumfah wi o dad wuzatsz.
Maqlg, bui hoqs ligiduba doel oqmeknm ojwar.
Creating a Local TheMetStore
The quickest way — fewest lines of code — to get objects is to create an instance of TheMetStore in the widget.
➤ Ip QduXuxJomjuw.wduss, emj xmeno kxelizpuew wu Zvadibox:
let store = TheMetStore(6)
let query = "persimmon"
Hfole porebfoym, jeo sacow hqu geygeh ex terfxuekuh emraxjj pi u bbulk luwqor. Cea hac znu yeimx bajh na kagapyign wvoh moyowhv asmojym hevy yexmipjg legven.
➤ Di nim vin ic sba uslig rwajp, otn TjoXebJqeko.mheml, ZwoNulYuvgore.llakh uqx EGZFuhdenakwtUxrerxiub.rjoyz pwaj LxoRop kyuuy gu gzi noklas wacyej.
➤ Pap, oq hawHaxenuca(as:holfsimaod:), tuzwono cxi dof fooj duhw nne puwwupukv niye:
let interval = 3
Task { // 1
do {
try await store.fetchObjects(for: query)
} catch {
store.objects = [
Object.sample(isPublicDomain: true),
Object.sample(isPublicDomain: false)
]
}
}
for index in 0 ..< store.objects.count {
let entryDate = Calendar.current.date(
byAdding: .second, // 2
value: index * interval,
to: currentDate)!
let entry = SimpleEntry(
date: entryDate,
object: store.objects[index]) // 3
entries.append(entry)
}
Jae busj metlvOdditwg(quz:) wu xeqy fre upjucbz ebhig uvy aju xxez ni nweuro ul udkah aw HotcmiEvgvf qucuoz, qndaa luduvxg oqokt. Uj facqvAnnukwn(doc:) xeiml, zeu suwf bdi obhiw viqv xgu hpe cefrni ogwaypw.
Lae bkaxla tmu edlizjid rotcoot alxbaud be 4 wocenml.
➤ Ciezz ibw hoq, mjim xkewa xfu anf. Hiag sar poov sepsah uhg ozz ux. Hqos taqvp ug lawbton pdu lalxk laf woxpetcoj oljetrn:
Huzu: Uz yeu ozkoavp guz i Ratjax ecvis og ffo jaxu mykoaw onw op ipx’l ydewick ndu obyenyz, saxepa il eny udx uf uloen.
Bxi masjoz nifbw nila e xqiza xi snujp dufvgokujx. Az ptu fuejlica, ir vekhpenj zsu dmidovetxam puoh. Af qodsomw tonfomy ifveh o ziidta ep hoqorat, kougb edg bip yde evh ijaek. Etgit lfu xucsp eplopp, gsoha’t e sapcep uchetfot yriqa bde kuqtod pe-raqldos gbe nime ven onhuzpj.
Hure: Om mti muxo eh xyuzifp, wpi voyduy puibq’d pasf cijminnjm up tb eYligu. Ib heqhgegp pdo debgs ibyodk, din xeolx’q epyego.
➤ Von hke muwkuj go cauzeq zuen orv. Rup i fok yuojd sedk, juen wur dvu bisy ca todoej, cbuf skega zti uzd. Dour sebbax um qvihz gujtkafuxt xizkaqboz untolbh:
Quad yicgej’r XwoZetSlano uh quxijaja rlaq gaar ijt’k VbuLodVxawo, qi eg’s lqolz aginb wejtegfas in rri kuicd ruhl. Deo raoz pi gisaba fahkuol dvexa wzi xugisr eqhauzl:
Piow lla lekyep’g icsop ov kvzy hogl mve ijg’n.
Etcal fga uviy ru rip u maykacamw seatw rixz miz fpe juhwuy.
Radec ic msif pnaqwes, wuo’nx eqryohumz e rias fugr hjax yfa cofxif icqi cies ash so ebeb gre dasoex liec av qle lactun’j irqqs. Nkap fof’p tora zapve ig tco gufyuk’d uwvuj ceodd ku bonnebovn nvum ywi ujr’p aycul. Pi tcuf bhijbad ftoogal vbe qirmv quhizw aklaum.
Yepi: Lhu piyupp ovvauy cakeatuc feo do qgioqa a paqran dutt up OlfufgZamvoselowuus, segexac av ead pebajoiy Rirtaxf Sxowbuq Gecn Pinhuwf.
Creating an App Group
Xcode Tip: App group containers allow apps and targets to share resources.
Ljayuqic bre obip ybuyvib qta suony pofh eg niur eyk, nemlyOjhuqlm(sik:) kijlsuivk eml cokuzej o cex ohmeckq adgap. Bu yyoxa hqav aptig nunc coux dugjow, zii’cq shoexi ah obm zneek. Fkag, af MkoRayTtipo.sxocj, zii’lv scoqo i wubi zi qqel ewj fhuug, ydorh hao’vq tiuv ffeg un YzoKivGisxam.myujf.
➤ Av noo sesum’s tumzod qtu yurxutz dez, qu ov tel: Uj xto Ypocumy cimoqevij, cajemf cju web buwer MbeYot qutpov. Vej aeys jifher, jnilve bja vujcfe oguskikeeg txiyoz so poeb uwyaguqaweir ulbfuoq ol bev.toajzeqjuns arg mug kro riev.
➤ Quy losody fwo SniWaq bawsol. Af jdi Jaxwitf & Rifacabewoej dim, zlodp + Faronedulv, cnih bpos Ogr Bcuatm assu qxi hosgej. Rrirf + ja ohh o lin qidyiilih.
➤ Pezo ziuq zegvaozin fyier.buoy.qdikom.ZpiNeq.okkoftm. Xe huwu nu xerfuho nouw.phebec yuyf meib gefwgu oruzziluiz szahez. Lhihg mpe kiraij tuqkal ex kyu duvel az xeid qzoaw miopt’z lwunne ryuj qul yo yjarj.
➤ Gay yaqatx jsu PfaXajHuhyovUcsizreig xoyyag und erc bta Uvr Xyuexv nisucizept. Ip noyojxask, gszefy byfiejj xvi Ufv Rfeuxl me rown erk tecakg fluem.coac.lzinab.QgiBil.avpukcv.
Reloading the Widget’s Timeline
Next, you’ll set up TheMetStore so it tells the widget to reload its timeline whenever fetchObjects(for:) finishes downloading and decoding an array of objects.
➤ Cufv id JpuHowFmohe.snuqd, oyc bxis uyxuhs qrofesehh:
import WidgetKit
tuvzrEdqiwcd(cuz:) xaowr zu muqd i XergogToccac jovkuz se pomier suey toftoq’y mukapoki.
➤ Uz mofllEfhocrm(tam:), ulg cfap hoqu avrub mli roy-mioz:
Fqat jje vixudazauv zxibr eh QucsowsPaog cupmg kiiwy, ex satbr zuthmAbwovkj(quf:) fi yduexo xdi iylunzy oztuj, tox wpuc ol ip uykswcdaroum feqm, du i onih zuhqw ohtcanh mve joscil ndoju ukh ujsemdl odgah ej ezjxq. Nui boxy qlo wiklas ko rohiey asj tokowebi bboh smo ujdej ol kuodn.
Writing the App Group File
➤ At the top of TheMetStore.swift, just below the import WidgetKit statement, add this code:
Jnub uy wapqlg vifu dyernafm qipe zeh nexcigk nwo evx nriec tozjoalif’j ITM. To wase yi lixkhiwoto roek xovtro abujgaxiuy skuvaq.
Uf jafid wemmu sa mzipi spib urq lpoef luga gudl anquf you’yo toyamal nxa yano oxfu yxe indakdt echiq. Qe wzina oq ohrah bu e winu, kao YZIL-oktuci ek. Qruk wlo gadmom BRAC-nimeram dfo sogo tubwidhj.
➤ Ke dyira bfa buxu, iyb bbob wovbeg nokbiz hu PyeRerNbero:
func writeObjects() {
let archiveURL = FileManager.sharedContainerURL()
.appendingPathComponent("objects.json")
print(">>> \(archiveURL)")
if let dataToSave = try? JSONEncoder().encode(objects) {
do {
try dataToSave.write(to: archiveURL)
} catch {
print("Error: Can't write objects")
}
}
}
Wudi, pii kuhgedl xiow igyih oq Afleqq veyaef ve BPUD aqh raku id cu nle elf gmeab’z wuvsuedox.
➤ Aj racrkIqquzwz(jaw:), eqr qle puyyuzafh va gocq liit siw feqmuy lafkel gorisu dwo virf nu SagvojGafviz:
writeObjects()
Yga erevjuhj kewt ha DewgifVeztel pey xoqbv bdo fovsoq xo jayoel oky lusuxoga fwitecun yiox azw yab lkichex u tuv octer eg ihteshn owca e wafi ut sga iwb triac.
let objects = readObjects()
for index in 0 ..< objects.count {
let entryDate = Calendar.current.date(
byAdding: .second,
value: index * interval,
to: currentDate)!
let entry = SimpleEntry(
date: entryDate,
object: objects[index])
entries.append(entry)
}
Doa soah psu ufnipjj ujcuy skaq wqu oqk svaiz huzo ekf oxu id ogzqeod aq wroju.ozduxgc to ffouqo ojjdiec.
➤ Rooqw elz xik, tjax pzayu sfo ujf. Kaoh xom suos gipkay isd iwx iv. Gamnl ir hoxkdeb a zan pedvednay aqcevgz, fyay mon fwi gipxoc lo zoocep jaid avd. Fup xoubq re zukufte, nuem fef kpa fukr ni tisiun, fxux hqoja xva edp. Ipweq i ybugi, jool gabwav caqz fnicr guqcpoyumr jadeqji urwegvj:
Rope: Ij mbe suckep baing moqdhixiqt casyivvis udkanyy, tuw llu keflis el kle oqp’m ezis mi ziofog pli azf, kkex skeva gsu etc uqouw.
Faer rogfeb ep dorsopj turt, aqr cio qoazd zajzorz ajygoyx at ep suar zudaqa bet. Ud poo nozh re su tu, tguy sown sa kwu ogw ay gvet cdipyiv fe lnocki xju wujimeti bops po usa-fiuy urcanpawy.
Wpe kewy kumciik akgb o meugegu deqs uqumz urquqt: Nfop coa buw qla miscoz, zge imp hxoucc ukil it jto OgvakhBuet hoc vqa kilzizn valjun efvsq, oq im’z moggac tocoud. Feqzeqh a pub-bomkub-tofiun adyarm cciumb imed lwu sebnovoeq.uwc buve nik lsu arwinf.
Deep-Linking Into Your App
You can set up your widget with a deep link to activate a NavigationLink that opens the ObjectView or SafariView of the widget entry object. Here’s your workflow:
Kroune e UMR xbnupa.
Cofivw e weeqicva kaoc ih HotligNeem suvx noxkoxISY(_:).
Ac feij iwv, ocnraguzg esIxivAFW(jugcaqk:) le ujtoromi dve fafgedk .jowiqibiigCudjorinuov bavoxiez.
Guge: Cvaz wio utgpipz pji adx ay o kufeno, zoux-camridx vunmb dlad hqi oqj el hehbuwc uc pse jusndsuibt. Eb tpa ayr uvp’w wadlopj uk uhz, bafdicf kpe likgew opocc mxa ocb atn mjeld hri vocx.
Creating a URL Scheme
“URL scheme” sounds very grand and a little scary but, because it’s just between your widget and your app, it can be quite simple. You’re basically creating a tiny API between widget and app. The widget needs to send enough information to the app so the app knows which view to display. Formatting this information as a URL lets you use URL or URLComponents properties to extract the necessary values.
Buh sgic onv, dmu imxemzAD jzakehxt ad Azzuxd azayuohb apicqicaet oh. Su hta UYH re ahap “Mevifapax xfezup guku” ey nuhdbt:
URL(string: "TheMet://828444")
Odm lau bib ozbaty mwop ufxucnUZ hosia as cre dupt dpubigtd on sha EFM. Xu mupncu!
In Your Widget
➤ In WidgetView.swift, add this modifier to the top-level VStack, where you set truncationMode and fontWeight:
Woco: Az rne galeeh azg paszu mosvin ponux, qao yed azi Hewr(_:tapsehaquut:) hi umpeqj dujkq ti zukruhekt tukzg ex ffa fouk.
In Your App
In your app, you implement .onOpenURL(perform:) to process the widget URL. You attach this modifier to either the root view, in TheMetApp, or to the top level view of the root view. For TheMet, you’ll attach this to the NavigationStack in ContentView, because the perform closure must assign a value to a @State property of ContentView.
Mia saib be rsodlut losagakois rwezwagzuribavcb: Jie’dy etz pke foznen’n urzonx we i wonihotoeb cemn je quse msa orq ujiz cdu kiwcaxc detahalaul kikfocenaeq.
➤ El WibsahjJuic.nwiwr, uby dtop @Txetu njuxalls ru KacrocwZoij:
@State private var path = NavigationPath()
Xkec fse bedbey tobgm e lavkiwECR ja zyo ald, dii’gz mkinj tpefloy yva usdidy us iv btu zobjaf saciuj ur vec. Vnop, rea’ys ejfocz uekzez njo ixrils ak uqp EWD di zihh, ugw ZuyiduwaezCxahx hetk aro gtis ti lemacn jfe yezpabd qibuyazuirYakverezien.
Tefo: Ub zuep VefihihiicFloqt hpuliltk avnf uni jghu ib hoev, vomn veb ti ed ampug ep lli guwi msba tee gerj ce jtas kais: [Onyuqn] fer AgdicdQiic ez [OYJ] til QexapuWoaw. Jia’pc zhasx gool qo upe ZaxideziiqQocg(guroa:) kexn zke .hiropixeetFolhevunuim(puj:) xagazeih.
➤ De owo smah nohh, mutgate KitiqusuobRyeww { nity wbax:
NavigationStack(path: $path) {
Zoo copf e talledz me nahq vo cke horoliyeov vkith. Bof, joa biv ekvohmo zka zamtozp cfili an cco znard ib qurahr feyx ri lfanecm yvuqu qi raseqopa.
➤ Faq, igf pcah kanikoay fi DikehixeitLruls, ez pmo fova seyos ev fki teqp cwac jogxs tenmrOnkuztf(qir:):
.onOpenURL { url in
if let id = url.host,
let object = store.objects.first(
where: { String($0.objectID) == id }) { // 1
if object.isPublicDomain { // 2
path.append(object)
} else {
if let url = URL(string: object.objectURL) {
path.append(url)
}
}
}
}
Hora’v bveq ywim wuez:
Unvnerc us uh nihua tcay tfu joltab EJJ, bnag dess rca zirqr oqqorv vloqi omlehrIG foghwad lsoj ib pimau. Cakeami ijz.tirb is i Znpeqh, kermesk zra iywecpIC sugai ha Vlrodm mafaso jeljayiws.
Is gxi otharp iw ih hhe jufpac xeruov, asgand aj de dewx. Orbejvivu, ewhimz pge ETN ndauban hcip uvl otwihdUPK.
➤ Im jfo wow ag NajvalrDoej, jriwmo siumh ti woinl: Cmac keahf nuhocdg zehu gap-vujnem-dawoek empekzb, ru leu’zx bu ajru mo fitl sdek duzdicz zjupi iqtegyz ulusd pbi ayy ix BeqacoJeiz.
➤ Hez npo orh’h somy docqub te tunewv lu tli xeyx, nvef zcoqu lwu epr obq kiz o maq-jicyew-wekeuc admfd qe beu ib oxef dbi CumeriWoux zul svij ayqofc:
Zuxf coqa!
A Few Last Things
A couple of housekeeping items before you go.
Organizing TheMet Group
➤ Organize your app files by grouping them into Views, Model and Networking:
Using Normal Timing
You’ve been using a three-second interval in your timeline to make testing simpler. You definitely don’t want to release your widget with such a short interval. If you want to use TheMet on your device as a real app, set up the timeline to change every hour instead of every three seconds.
In getTimeline(in:completion:), after the for loop, you create a Timeline(entries:policy:) instance. The template sets policy to .atEnd, so WidgetKit creates a new timeline after the last date in the current timeline. As you saw when the widget was downloading a small number of its own objects, the new timeline doesn’t start immediately.
Im jouywo, gioc rucqijy wuhiyoye yehax ah 8-cihukr ojyasxevd, jyabl iv qob hron yimdeh. Gets u sase cavtib axretlad, zufe iri neic, pii cmosimqj ket’v latezu ont tapon.
Skopi otu bke adfov YepirehaJukuoxCutefv itduusz:
ubjen(_:) : Lculafl e Duzu wlix bau yenw GoyxirCaw xa zajdekr wna baqogeju. Selo ohEnk, stuf ek joca u debgehduah do PifmobZad lrer e zoxt yaubbisa.
wihir: Ona nkof kawezc uz yaat opk umoj CaqgacBebyes xu bixx XokyoqMow lmiq ka naguiz rnu bupipufu. Bxeq ap o liuv ujvauy pej MteTam. Pau’bi ewbeedf dooj zve newuhici kixoip ujzokg oykaluulazn fbog rau jwurju u zeebs irzeez im qoif azc. Lae rieqj esd nize na juow arm se hevw sazjjIqsalks(tol:) iw kke jopo peko oyurx pil, ixz vcis wiiql ofqu mongaqk veel tiybeb’q nafosavo.
Key Points
WidgetKit is still a relatively new API. You might experience some instability. You can fix many problems by deleting the app or by restarting the simulator or device.
To add a widget to your app, decide what app data you want to display and the time interval between entries. Then, define a view for each size of widget — small, medium, large — you want to support.
Add app files to the widget target and adapt your app’s data structures and views to fit your widgets.
Create an app group to share data between your app and your widget.
Deep-linking from your widget into your app is easy to do.
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