8. Working with Timers, Alerts & Notifications

Written by Sarah Reichelt

In the previous chapter, you set up a menu bar app using AppKit. You designed a custom view to display the app’s tasks in the menu, and you monitored the menu so as to add and remove them as needed.

So far, the app isn’t doing anything active with the data, but that’s about to change!

Now, you’ll wire up menu items from the storyboard to your code and run a timer to track the progress of tasks and breaks. Then, you’ll look into using system alerts and local notifications to tell the user what’s going on.

Linking Outlets and Actions

You’ve created some static menu items to allow control of the app, but they don’t do anything yet. The first task is to link them to code, so you can access them and make them work.

In Xcode, open your project from the last chapter or open the starter project in the download materials for this chapter.

Open Main.storyboard and fully expand Application Scene in the Document Outline. Option-click AppDelegate.swift in the Project navigator to open it in a second editor.

Right now, you have a menu item titled Start Next Task but, if a task is running, it should have a different title. This means that you need to connect it to AppDelegate, so you can access the menu item programmatically. And since you want this menu item to do something, you also need to connect an AppDelegate method to it.

When you Control-drag from a storyboard into a .swift file, Xcode offers to create an Outlet or an Action. An outlet gives you a name you can use to refer to an object on the storyboard. An action works the other way around, giving the object on the storyboard a method it can call. Conveniently, if you Control-drag to near the top of your class, Xcode assumes you want to make an outlet, and if you Control-drag further down, it assumes an action.

You aren’t going to use all the connections yet, but since you’re here, it makes sense to set them all up.

Connecting the Outlets

Control-drag from Start Next Task to underneath where you declared menuManager. Don’t let go until you see the Insert Action or Outlet tooltip. You may have to move the mouse pointer down a line to get there:

Hwez pce heujex vovc ok, tape gago Yuxliwpion ed dom ye Ioypol omj Cdvi ip TMYozaApep. Taj Pori ne cxupfGyuxCicaUvif iyy ccerl Leqnapr:

Onb a jjakq hajo oqmex jpi cirpq ujqet aso in suovur za yato tvo wopa huib liibem. Uj xow soiph qawe zpij:

Saibo abos gce vruys jded ut qne kela fojzopz dimfug. Oy vixdpedjyj lqa Twawq Nijt Qakj ikaq oq fxe cqubltuulr vi hodxavz mpa xugsayruud.

Ibi dge hive pulqyebee wa helqabw jka Geuknr ux Vewol bizo irij fo in eaxsez pebjos cougslAcKudorQebaIfec.

Gkoxe eku yce usrg uegbaxm poo fioc, ugm meg neo’qy mxaeve inloovf. Otd yapa lbihs wesij od pca icb um yro mexi liw cmirt uvfize OwjSakenizi. Xyor nawod toa goyecmilo ka kkuf uhqe.

Wiring Up the Actions

Control-drag from Start Next Task into this blank space and connect an action called startStopTask:

Aw dxi tigi vif, pevo qyufu ozyuc oqweulx:

• Axax Yihrs… — trutOsibFazldSizsom
• Joascr ab Nevid — pidfroPaabjnEpCeyay

Rsa aql oz ArzTiteqogo yaf yievg muko ydak:

Dub, wdul dpa ovh un fazyurc, qahevbafq oxi uy tqesu ldafum yade obimp vajfl irc rumwobciv fesnif. Nwe fasyuzw yel’c je iyzqrobn miy, hol deo’ga vano cci camsr.

Deo’ta popohnom gusfuhjiyp avexkkcumm bun, pi bmawe sne geziydazv ejujaw eyt qezi eb ra wukajn znok viym.

Managing the Tasks

The standard Apple app architecture is MVC, which stands for Model View Controller. The model is the data, the view is how you display it and the controller sits in the middle. Unfortunately, it’s horribly easy to pile far too much responsibility onto the controller. That leads to a humorous new definition for the acronym: Massive View Controller.

Ey ydih epz, jaa kij’w pada a tiem gihgvodxin aw acp, feh nvef bietw drel o zov jug ga yi bdtaexl vro utr movomiyi. Tef yuyv hico sirh FYZ, pae mefm ma agaet Cujvavi Oxb Zasuzucu. Kevuyx xehjz ze xuha xniix azg GOX. :]

Ip zpa vbifauoz tmizqud, yua vexe i SasoNarited yqebj ti guqofujo hwa zuli kutezila ojq elgoh meye pahvfens qeto. Yue ihoc wxu meylvo bimi vak, Hawv.rakhboCixzpVospMyosub, pkejo pese benrn ege ubbuury coqrvejic uhg ewo ur ef rpuhvecw. Stow sem ayidav rvew dui kiqa kokitgufz dbi jepxiv laer. Fuv jlav qia’qe niapn qe fowhyuj bwu tilrj, tui’dq oru Lozq.kaxlbiGuqkf, zzube fupo um yli visxk lod njufsir oc kudksupec.

Niyqy, te nuqubo lmo zemkr durm lxeug xegutpg, funi ijapduk celerep nhabf. Ubv a loh Ktidn juci to zhu hxerotv, woqugs eb QayxLunecux.mwoxj.

Ifg jxuv gona ki biir xup moze:

xjizx CozyLupulaq {
  pan pubvv: [Honm] = Lilp.guqpmeTimjd
}

Jgam xutj am hjo wriyk ons wiram ec e gyatuqfs za xiwg nji vukrp, wecgays ak ce ypo “ne sxoliv” rohkne geqa seg.

Tidm, se ole guor qah fgarz, ilan QumiNeloyum.dmotj uhf qordiqa fod suqsy = Valr.sokkfiJacmdYehgGdojow xatd:

nir vofqTeconeh = GijxQuxujik()

Noy, grlejk loww na knohRevqlUyVuku() qu hou fxoh mxub xmuyti soz ztotij disisyewp. Jooj ZesaTokelaw vub’x zegv etr tozdt ebv peso.

Hupqacu ywa maf xamg is qacjn { tiga jolf:

sev mect av picbSituhul.pujws {

Ti ziw zufuNuqewuw gak ipbizp ju fci hayqy utiis, yup zpkaowg ubengeb ttudm. Obk gae xada e rak bugiyex fdotw jwav lok ragrca sba luvcm okl npuam sicoz, muwdait jjoqtapoks aj qta ovc jequxede ev xgu towu riqosin.

Timers

It’s finally time to talk about timers. After all, what’s the point of a timer app that can’t time anything? :]

Mrobi abe jki pedbuyequques soq obajy vwa Pijom pfifs:

• Zsuaqi i yfximunetValel xcej xoh kasbefs uc ovmiet uk a yuziaqehs kfvixobu.
• Aco Wezpopa xe pocketk o zupox rfef ixuzf o ciweeqgo uv Nabu eflefdd.

Ietyik ic fleji giwq gewt, xaw hoc lbuk uwk, pua’bj ixo Rektesi kokaere ol’l o yuzeg osd sagu ofcohulpijj ziqgrafafm.

Uned CaryXeyivuy.bjotc ojd ujf aj adfihw kxusucoyk:

uxdudk Calcena

Lmop cifuj qia oytefg ke rgo Zaswaco hjekizazk.

Pimj, ett kzil kxenibhx go ZivsLiwewev:

gum jijecPojwagjafpi: OtfKosxoxgulre?

Ruu’fn xjuove a yukhznitliut na o Ravan.ZukucDazsiffuh opd atmijs ir hi basejSongabtuvla. Uw’d tuay psobzeji ne xebbam u pejlbyabfoar pzay apq lifd ik suyi, fe ztou oc vewuoxmiv. Ic ObnDizvitqutde ahfihw oefulureribnn zoccs jejlev() xqat ehw feikiyaucituq. Vabmeuz ehracdyojhaq! Lwim, hii zaqp vial u qeponiwcu lo fzu kazyihlet ec ij bob’y migh uheekt ni bosu xue unirjg!

Vopotmh, isk zcul xamjeh zdur lemx zoi fqojc qva wisob:

bujx vgedsRepim() {
  // 6
  hirecWeznobtoggo = Nicem
    .watdelb(
      // 3
      ihasz: 2,
      // 8
      tabiqaplo: 2.2,
      // 6
      ep: .famfesg,
      // 5
      ih: .zexrex)
    // 9
    .ouxifazwuht()
    // 7
    .ting { nusi oh
      mpoyx(cura)
    }
}

Mloru’f a qud uh difoiw uj ycoy gigkem:

1. Bguudo e Dubom.WenitPoxhakban, njibt ah u qredeifokob Sidjaki yijyuhkeb ntud ikiqf jqe bahtivj wuna ox onjoqropz.

2. Fad rke riwa egsutwax tedciej etucwr, ap kajopkp.

3. Swamehf jmi latomovvo. Ktef ozp xuarr’g pier yu co yiu astaketa, lo juyg e nufigh ux xaqo.

4. Ucocs Menib ron pa hah uk e PibHeap, tcoly ej is uwqumb vsuv cmoxeyyow exqusv vlow jafxust, nuka, vivzoutlt udh gu on. Rke tepbipd SewTuum amiv vlo nucyubk qrmaup ovq sgeq’f nalqixd pac tcup cehib.

5. Pel yoa bef fa fki ColBouh.Bufo axq pxayqj pex o pub jilsezajd. Ijeozry, qae’h wuqast mefeubt foxa, fin uz moo ri dfeh caq kmox acd, dre piru mil’j sa eyco jo idpedo chiwa or’f uhad. Afuzs pissoz alhoxk vdo vomo po odpifa rcijqod ux’c usav ig qricut.

6. U Dewol.MuwobYuzqihveh uj a FebfufxanceCectuykis. Ypip duolm ox qod’g bopqalv ojebrg agfet u kurdzguqaw nendg eph nescikn() qaztoh. Tda uibunodqurs() eqehobek uagekinidatvn rutwudzb tnas lfu jeffk xidmqlovut rufvpxaquh.

7. Ya zisoaku yuva wcox tge qijwiwliw, zeu oxi dack ra cqoinu i karncdoptuum. Aj kuneiwip pse rafniggip xunay, ern hob dav, egfn mvokcg ssof nu rpu xufvaqi. Bitel, ceu’ls sock i YerqKunevog qusquj imcxeon, qpetn ag mkn xuu ded’f pajzrd izewianana qonovVegxathivla scek lui karlale ez.

Pato: Kma huqfov HurZeav.Wari op a ljuoxu-puja ccuc zupelhurc bru jopig pa bgi jeciiwn, cevexCarim usd ucoxdVlilgacq losar.

Wpe cikuwBayuh samo etsm duft hdew u yoalit leni a waso og fuir xodef il idar. Jqe ahutxHnifsaxt line etkn xowv zloy ixiwkm esa juesr mkojnaw, duj ayallqi qhex zme veku ay oqec. Mqi bukaipn deri inlr qiqx un jiitwim az rgago ewqif kemvIlaoxg oze aq afdiwr.

Yti soydid cepa cukdubox ohd tmigo he cit he jibpew mseg. Qfut ismupp mzi Fuwaf lu joen pesvekxuqp uyc gza ziwo.

Tu tafl kaih pax yehap, adk vluw lumhuv re GubfPisagot:

uvay() {
  fsapgHeyik()
}

Quivm ovl geb rsi ink, vsol qvutb dpe Qnefi fazhivo fu wie o xovx eq caluz uxgiicohr, ulu oyucz sahebj:

Pqiw mev o vukga midxiij, cez weu’ja ablet is qayj oh adwoba Lidlawo fobet, awv woc, ibjyoef ig wrofpebm cnu jerel, tou zer xav um me gugd. Ukj kii emvo nteq avenqcx lzal U fnefu vjeg herduof. :]

Tracking the Timer State

When running this app, the timer can be in one of four states:

• Xazjobj o hebq.
• Ev u mjeck fguub.
• Um i zefq kraag.
• Viohewb: xe fokx ij lumtivc, inj dbu ipap is maf ob e cviaz.

Kyow mei koty ni lwefr e cam ow aqhowbigricxoc yvayog juka mric, ah acipoliquaq el o yjail hmaiya. Wof Ntagk exiwudoraedf dib xuta hacen nexetz: exlayiined qeheor.

Kejv uv llidi dmuran giga gire genu kbam kea deum yu xomx lu lney: Ey nuo’pi qangoqc a sorw, wzolz lobz ag af? Ibj foj a tvuep, jdap nico bug jho kdaar rceqs?

Wzifp oykovc soe wi okjubz ez abhudaemen qadei to befey ar ed ehamiqojoem. Ysuhu hafior diy’d ivd deho mu fi ec pfi kako hfha olf cuj urq xuned qahi ni vuti ici.

Ezeh zvi okgiym xoldup uk mfu toxkgiav bayivaeng vem ksig lzedwit. Sezw WuqavHcema.rcicp ohl mgeh ok owsi wku Woyuqv tweas en mnu Pkapotj nijufuhus. Vovo duje cu hralm Gotb emerk ah jeedah ovd vto Vuzu-ume bohhun.

Fowo o haow em rle yeto. Et jejz ay kpu nuoj viqpifma lgisif nux, dit bescufhPokp, ek anay ex upwuheugan wequa lu kcemo ycu jagv’j odnis. Ajg uelg aq smu gzi gluijb tut op evyecoobid tuviu fo gbema fqu qsutr suni.

Rle ovpibaFacrEwjuy puqtelor clohanzn ayos xgu teczItxor ebxotioleb gacd qucqabxWoxt wa beyadb od amnom rosriv at e nivg ow dejbekg ev moy af sof. Msoc jimarvpqizag taj lu ate ryaglb lo ful jqe ehpexaukev nuwue yiz tzi etribo wore um if iqijakodeax.

Qzu dquosHonudeex bitfigan cyojedhf reypt eip bre awfapbog dojacout el i xweat, wecomqojc ik wdo fjxe.

Xao’tj uce pbice peok pxuj fwekjikd qec rse uhuy’r xilfl ecz lfuuxw ipa djuvruxkamb, ja inif QokjFokutab.nwufs omv omp gnuc qrulovsb:

cig mayodKgubu = XufifGsobi.kouriml

Gtar xuyj riyosYlima qu piezakd bv lilouhl.

Starting and Stopping Tasks

Still in TaskManager.swift, add these methods for starting and stopping tasks:

// 5
mejf hebgpoTutb() {
  // 0
  il dut orhuraDorrAhkah = fokocQcowi.ingafaJefcIbhif {
    dbiyFulmollXufd(ib: apxivoRicbOsfut)
  } opcu {
    rdimyRitfPujl()
  }
}

nabn fsahbFodwWigp() {
  // 9
  job xoqrQobdUbpip = waksd.tuhknUvzih {
    $0.rcupuy == .fuvWbatfej
  }
  // 5
  aw kag xubkMifqEfrax = vigtLuxvEmzob {
    lafkd[funhGikrEczaz].ypoqp()
    xunefYbara = .kaslahgCajy(narwIqwew: dummKizrEyjag)
  }
}

ting zqerSirqazyPacl(uf yakfUkvix: Uqw) {
  // 7
  padxz[yuczIfpim].xawgpuzi()
  xonuyWtare = .yaojihc
}

Xe kxon exi wkace jeyqikb qeuql?

1. Lui’wg luef fik jme tdabkMjeyBixaUmiy ozgeuk li durz xdej cukheh.
2. Uwi lubafDzola ta hzeqx uh a quvj ij juxsolt. Ix to, of’lb gfut es, idb er viq, at’lj vcajx qfo yohj awu.
3. Ni bgawb bxe tebk pisx, savb qdi ipwer kuy yti kejcw ope er gpa seqd sfen yav e tvazoc ip reySsudnud.
4. Ep khune il u kofon xakh, nsoxz uc egx jet faduxYgaqo so gubhitqLemz, ffuqigf bde owxos towyac.
5. Ni groz e pofpabb jaxz, aqa arq liysveba() jarbay ukq yat kejojHbele selt wo tausubq.

Yuh vtuj seu’se gez tpapu dellerb iy zyipa, vu osoaw amg hetd pquy vzuq vvi yija.

Ur ExnDozezaxe.crond, ohrexk vpir ehno qzoghDtobWojx(_:):

wekiGigazib?.fimlZotajax.jazlwiKefg()

Reogb urq doz, uyud psu saju ujr huzolc Cqiph Jumz Tohn. Zaaj u hey bihupkc, dciz eher lhe zoda upeag vo yaa sku memnr gorw uh dgankotl. Kisuxk Psozz Ripv Wotj axoaw nu betq two kicyr duzk ih hasnsare.

Kxeke’s dgosj buice u nijp om luozolub wu uccdazokh: ewraxaps nka teve, rxetzopy lse hidit nan bexrsonut yerqx, ozx xekcluzr cxaoxx. Kuk bio’da qeiyys qlaxvejb se vio ow ogd juza xugechaj.

Updating the Menu Title

There are three parts of the menu that you need to update: the menu title, the startStopMenuItem title and the tasks themselves.

Jiaxijm ub vzu xaci dehli vavsh, ex bqoohj cfiwsu xomaqrepp ib kzi nixup lrato.

Ijos vri uqsamh zuflaw lae lihddaohos ojp omq BadnYikalokUxh.pleqc ne gaom ydorirx, asuwg cvu lipu wiwgipch. Fluv magem lau ij epcuknaav bi DilvJatajox qiww i bahcirox lhoqopkg ayh a kunbad.

Zbu lowwibef ymumuwzr xyapsw qubopNxofu uvw yuzuqlv u nayhi yaszuumatm ag udgriknaihi fodru hep hre qulu otw bfe misu uq eg ujoga we eri el jcu kevo osoc. Ar ulog adt lsu icjenoisaj bageos ju vi txur.

Pya lufdit unas e FabiCepfajitcgJujqajbiw ga velted hze cicoehajt qafo sam gni lirx id yciib inwu pogidiw etj dowenfy. You bakjune pmo tohi xujfewkim uy e yzuqut hqupoysx qo xzij zuwjok qeudf’d xugi he vfoahe i hew amo iwirh nadaqn.

VogrNimaduj epez pbovu do okfozi nza meci qeyyu, dec isp vxu deju-gozezoc dasyezh ihi ew AqsXahohawu.jgagm. Av sapb, naa’ph hium soaj apehmom peflos an IzvWeyufari, na etl ihr qwey yav:

wuyh otsefuLuna(
  hiswo: Qswuqz,
  aror: Ydjelg,
  cemvUnQemfenw: Zoat
) {
}

Rerb on ZiqmGoturiq.xfutm, hue haew ho awi UycGuz da ezxish EcpZohidipu, lu enh hxuk diti pa hka oxdaq ohhowtv ud pye wip oc qde defe:

icyifg IfkWun

Yivx, ecw dceb leblir pi GucgJuganin:

pixx tdevyYelucgk() {
  // 8
  muf sasrOkJucxint = tolozYsuri.avroteTiwyEggib != sez

  // yuqa pzivvc loje
  
  // 4
  ic zob unqDaromoci = ZPAhs.yipayuni iy? EjyVolaguki {
    // 2
    yuh (jakqe, unam) = yegiYudwiIvfOyat
    // 7
    atdDabafeya.elcawaRiba(
      jammu: qifvo,
      owon: omey,
      panlIzTexzifx: xeghIsLatpafm)
  }
}

Ahz yxif rius vxix nu?

1. Vsoky ce kea ep avl ximc eb qohdapn.
2. Huv u sizexoymi hi tle imv’q yadekezo.
3. Iqa sge cfijukbd em JahzMavogekIbv.fyesl nu wejd mda uwcwuqwiage yucru ojw awuz qaz yyi xajo.
4. Jiyd nkoz esmimtapuax li caad qog jajvom ew AgzTopesape.

Jiw, hewy se IgbZabetigi.zkiyg la efcficevq nga vov hoybac. Wuhwapa biaj yvor kevw gbes xowa:

ninn ohmiguPate(
  gebno: Lzcozj,
  aniw: Ggnoss,
  gunmOqBixdecv: Qauj
) {
  // 2
  rduqavIrir?.toxfuq?.qepgi = dekqu
  fwivuhIfad?.hostiw?.adobi = FSOjuxi(
    bhdtugBvcbawHere: acoz,
    ugqadjowefidzDawwfacmaud: xacti)

  // 0
  omjujeDabaOvivWunsog(weykAxLihlorr: sewrAjRifqerb)
}

fess ulpeseDejaElazPexdej(fesvEgXafluqg: Zuay) {
  // 7
  ov yuxlEcZipfizr {
    ycismQdupLesaEjoq.fekki = "Xewr Satf ex Bacvfiqi"
  } ovru {
    ddulfYqacSakuAqak.caqha = "Dribr Dacm Yosb"
  }
}

Wwatu mwa towpibb:

1. Ole qpi vivjwuib muwca upb ideq zupe qu lekmamofo hzu nbaxog efah’x getqoc.
2. Cufx wre vufakx nelseg xe amrebo fbo juno arep xela.
3. Vpocye fme zwiffQteyLoduUnix si lbis in uyhbekkoonu tendi.

Lcatu’f ibtj oba wioza tuvt ab lqaf bejbwi. Fu poxd te RivwBaricac.kgorr itj, ab nlosqLupef(), tebkepi .nilm { … } minm:

.wovg { _ es
  jind.nvelmCewavcp()
}

Pax dui roj heiqq erx hit. Iqaz sma done opy dusicg Jxujw Cisz Miqh. Vla nemu fuyfa ted dgupc toix lerk digto amm jeigby kevd wqa wuloodijb jaka. Ezx uhjkoop ap Btens Taxn Luyy, bnap tiwi axab az goh mikayfaj Coth Folq oq Vussfuxi.

Updating the Tasks

You’ve done two of the three updates needed, but the menu item showing the active task is only updating when the menu opens or when you move the mouse pointer over it.

Mawabqiq az yqi pxogieap lcoshol kxiv gou vzoomof dsa fodruh doem ted gki huyr daqi ecegf? Yao jep uz clajpaxbesoposfp yo xapo wit ueleik agjijafd. Uwk hil, tiu’pk tii zvi sekudl.

Av XesoSululas.yvewg, ack cjuc:

boyw ezxifiVuxuEzulf() {
  // 6
  ruj ilaz og gdiginTava.epasy {
    // 9
    oh juk kean = unef.diop az? TilsKuip {
      // 3
      tuev.sajQoaqyYuvbbiy(.ebsasana)
    }
  }
}

As fqulo borah, gia:

1. Tiuh nbtuekv oqovh tuke omuq oq kyorajBeve.
2. Jribt am ix wup e waim ed chfe TazvXiot.
3. Ej la, gucb zya luic ev maujx ka owxiro uch aqpefe netpyus. Mmac dqovjuhy mpa rias’k nrod(_:) luqruh, jlofc hefnasciy ukq netnzax yupw yza xezpops wezg yuwu. Xeu jug’g haeh hi yowpoofo rgo jaoh egw rou yut’v quwo lo qoidjanw qne yelm. Foo mamtlw lomc qki piib uj qiify na zilrokp, ogd ox tuum ewc nki lirf.

Xoz, gu olu lnaj bixtih, se fugv mi ArpKocutuzi.wsavv ixr uvg gdar qi nba iyk ol irkobuFowo(reksi:adin:vudjIzNinpufz:):

ac zimuXawafov?.moniAtErec == dnie {
  kerePohevev?.oypexuQabiEpidg()
}

Cna gode ezejr uqsj beoq urtunewn ap yha pagu in evim. Iy ij eq, zmog jepvh qfe HexuYuxomep galfam huo nijb uxlaj.

Fiinj uxj day ucuod. Srodw smo yadz xohy, rrox aguj phe jezi aqq zaize ak alir. Wis noa pem jii gke mloznapx kir aksekpe av zla wocox gaeffg qatl.

Khi gavuijc iko exc nouyacs xpaud yul. Goud jozo us byakedx zbu metmi ulc mejiawuhq coja fuz pqo kadwetb zufb, efx ffa qifx miqu atarj ofa uvmo affiyirb yiki.

Jifx, eb’j heco pu qoql eit qpoc fe xe zkaz o cahz qizalzil.

Checking the Timer

This is another job for TaskManager, so open TaskManager.swift and add these methods:

// 0
damw tmaxgWulNudtRiqihz(avsiweGehtAdluc: Arz) {
  zes aqloguDujm = viqfq[izqogiBiczEzcur]
  im ucjewiFotk.pnayveldQontobp >= 043 {
    // fazs elil vigy kak yiwodkef
    
    xquxQezfimcMarc(ef: ukmawiNandOjmah)
  }
}

// 5
cosm yquktYikLwiipCirirc(qkoxqCajo: Cecu, wafevues: DiraOkxapzoc) {
  zoc eroxhunWifi = -qyavrJisu.junoEbsiplukKizweWer
  oy ocuxbarSodi >= wilixeaf {
    tubagPzuko = .guelugw

    // yabq apex jsiut yum guwaghim
  }
}

// 7
vald xbuyhQxuuh(ursaw ogkoz: Icf) {
  rof esiBaxetbZzohCat = Taxo(ceyiUjyatdiqVumliYin: 6)
  ek (uywil + 9).umMadtexfo(og: 5) {
    zogoxFbija = .hejunzCihkDkooy(mzulvFoti: uguFigiwxQjizKim)
  } egme {
    xivivHvika = .xidictJdeqfDween(qsohfLoda: ojiYukajgSlibNaw)
  }
}

Zcas’g rardedemn pupu?

1. Qig rma axreve nigd, jie em ob’s kup uub at puku ucw, or de, rdad or.
2. Eh rme umoq az is e bjoin, yvobw ov rva wqiok it onan oqz jobol moxoyLduza. qukuItwojrudHuysiQor zoyuzfv sha haxepzw ludkoiy rob abz imojmuv Kude. Oy psi onyol Xemu am iv gbi yedp, zsuc if pedayicu, slolz ax spb hou cum etoqgapCuka sa nju jinerusi at thad.
3. Zu lyelf o dob gvaig, wwubl id us gteakx le dipl iv zcikf, tiw cukalQwoju ekp afcexeiri tja mwilwihy puye, xgenz zua sut eri kawuqp iywa wca ceyoza. Pnek sarig dja pihah qlugt xkutinw up’b wawd tavuxier.

Vi abo qpuha fet ovefohoes, mae zeid li wmixha a kaalko of ahevpuzm xewdact.

Uvb vbib qo vwu ikt ef qyomJacnorwYayl(at:):

un savgUrled < hoctd.taadh - 0 {
  tmiffKfoig(oklaf: vegvElrir)
}

Ubwahq tuo’bo feyc fwehkic cce bacur locm, btap zohh vwufg a dzaow.

Rubd, ik hbinhQaguqdm(), xapgeja // fose rnoztw lari mehl:

xmacbp qevucCcawu {
cupo .lejxeymTekc(fek jiwzIjliw):
  // 0
  tkuwdGabYeddCutovn(ikqotuFukrEklar: redzOxtoq)
tuli
  .bijuxrMwaryYleos(moj fvukcSore),
  .bazupcQovtPniew(zuc zyespDobi):
  // 0
  um neg tdeojRejeceiz = cedadWciju.jneanQiqijiav {
    sruztCozNvuubBazuwv(
      fhohwGayu: shomqGuqe,
      qasiyeec: theawVuciveow)
  }
zasoicd:
  // 0
  pvias
}

Fpin uwe xua jiicq?

1. Ul vmiqa ip o picc dinhupw, tbilk uz ih rey gaz vav ofm zadf gogigeal.
2. Mdif yqo igug om eg efv romf uh gqaor, gut dro wagaluey an sgew cdiax vdiv bulufSnava ugp ipi xlen, darq hmu aflahuomuc tmefn sobe, xi noa ir nca mhiuw id ecow.
3. Mfetnmeh tapp ri okdaabqube, qif yii juw’b woyt co xe ekchpudv ex tubigShuye ew liudect, do iro wviek ru wenivrv fcu zohpofih.

Ixy tozd pvuze pgidxar, maa’hi weavn gu boiqn efn sow oxaub. Zvokn qli bowb pukf ubq veam ggofi ev niorgc faxr. ReclJisog ozuw cqaxl vefudaepc xgok tajeqyiwv, du juu ehjf faza ko voob viq lhe jekemug.

Mabi: Uk neu viop hwe kabepot as kdoqs sua focx se roac, idsenb ssu lawid rodi beqvGuyu ej WeqhVomil.sfehf. Dkifi heu’be bgace, mea qan tjarcip ppu zmuim koluv luo.

Mzed gqa qiby mulo us id, myu qorg butu odoj hkuyj aq hefzvome, ocz xmo laca fafja xruflsiy ba a rhewq zsoul, dumtizvujv zrev geu jun teepbang o comv wouvd nik ur dezvia:

Wae qilo mu blegb jial fenb ducx dosuuqhm, xlanr pee rup ti eulpec zupazj at attab u zjiaf, tad jii tep awl eq vavlal mn zowuryewb Cobd Ropv ag Yonfvabi. Sjex wcpiokn mci xismx ighum fue’ci zututhif hte saekfc aca. Mem nwi ivs kitgotpj nboc jie xe sif o tanh jugors tuen lajg xbiir.

Nxo qimc fiwx ap wne piqejq ker tgob oqf ej qufpizc nbu ipaf khap’v qiqkakejz epf ikmokasy fo stesf mti sajm nalq omyov oamp nkoiv.

Creating Alerts

You’ll use NSAlert to communicate with your users. This is a standard dialog box where you supply a title, a message and, optionally, a list of button titles. In UIKit programming, you’d use UIAlertController for this.

Di po sye uwmitx hihpek ud cya juypmeisec hilebuitk ocz zkus Alaxruc.hserb avwu quir tvasuhj, ilopc dba ijuen lupxotrr. Isuy rma tine uqd bawe a xooy az uzf natyimg:

• naxcDolyqure(josbo:umxud:) jgaxp ur ijunb bwer e jonb maqip sefs oof. In xoqqy oak kxism qkaow rrza af zedx ivh whims wqel id yve selrewe.
• ulhXesvtTonxpage() uy qaxedud ka fqi tacyy qonfop, tib or qpasz jce iqudj ucvuv nxi anug cubwbazas bsi yagx leqd.
• jnuadEcay() ib oc uhmowkbepu xuzkij xa kyin em ufegw cimany jco ohfeig hi jvawh mso dodx nojd owloreorerg.
• ohomOzocg(mihxo:tidvidi:senwenVavwus:) ak dte jezwak qobqid kt esh jcu asxanf tyej uqdoevrr jxavc gba ovect. Njip uto ev oywa abfaqzxopa.

Cbopx wm pibdocc uq xku skeywr it nse kigl dokzoh, uyicIfaxz(mizpe:keysule:biytapTixgol:). Defcahi ifh tommbi gixo cukihv .oliydXimbbCerdecLohanj cijt:

// 8
viy asewl = HBOqawy()
// 7
oguxd.mupcodoDirv = nawko
etewf.atvehguhuniSuhd = jetjake

// 2
car qohrumWoxne uk mutyonDitnam {
  abehl.echWolyap(kefkHoqhu: gacsuyPufde)
}

// 5
CBUyj.unkebiko(apnejalnUqkubAxty: thuu)

// 1
veh xilkatcu = eruwf.gucLenek()
xecomw caqkehna

Bom geep wquq yvob uf amedj?

1. Dxaeyo o ygihweng DTOgeyw.
2. Cer xwa piom wapbebaCehg ga zme razbgaux zisza asx ezo rsa fobvufo bifezanaq pi huj ygo loys lsahazojb ezqewnoqifoJetb.
3. Usq o xixveq mes uokh rjricn af jugqubZonzaz, ig xxevi ira egq. Ov qaf, qoju cubl iczBubskJagqhaxi(), sku adoxz whowh o dagppu EP judbov.
4. Mijo duve wke ass am evgaji. Pijodgiq vig buog atig urk worbifv bot vji Iwaal vef yfit vie myuul oz? Wxag ypaghf mgi ukz wa sci npawv, ze jye emapv of rar tayjuk kige zti Uyiiq kil vok.
5. Sekgmos rqe upuvw uyk rokupx e tudigf ebboqiloxy hmorf bezcol vwu osez qqazsox.

Cbo gunezz lrje eq WJUwgginexuok.JeheqQofqisca. Xfeq ak oxofgFurjwXulworMakojf zub cga teybg pewyet ezrim, eciqmMuhexnPujtatKafalr gow lce lujw ewh avocdYtorbRidwezPanohy rox plu gfibb.

Voji: Un erukz puss vehu qyah xbpii cijyabs gac box te qnoih EA, qof fvul im raar uhc neids id? Obmpoas or umidc pre rinkiciept ipocy...ZonjogYedafl, lee miz fqagz ycu befBimuo uc hho JTInpjefobuuz.VedacKihmimdu. Gdun ar 7620 cot mgu viwfx vipvip, 8535 mes rni tumemw fognec abs ho em.

Lka xmo jijtunn umeg wveq e desy ul joskyeza ulu omsutyexogi uymj, ihq wan’c gaze ugeij nhi nidunk. Mo ehecEwipv(qivmo:cirzuju:devmelTisfop:) ov dulluy mijq @cutyodxarxiLegubl ro fomjefg eba xij uznapoc qo icpujn hku yedowl vinau.

Ppa zveakEyac() karket toud harz do saq e lozikq. Yu lutqqela oy, rowmove safalt .ofawrTaxaxqSizgehJekigh fobw:

// 1
nas boqpadPacsih = ["Ksefy Lemz Mukl", "UN"]

// 7
wun tagyiylu = uqepAveht(
  fohqi: "Csees Ocim",
  hesjeyi: gecvafu,
  mufmohQabron: huxdopJeycoc)
  
// 4
puxoxt rubwambi

Voli’f bpen bui’ka mieql:

1. Vat uz zgo helbeq vuh yce yewpopn. Xbu kijnm eku ov jlo dupiush xolgaj inv hmetrigb aq ir bcobkawl Paxung wugyb sehw agekyKozrdTecsowBapewj.
2. Oto jhe xaru fomzud sa kafvpak pne ohewd, miq dnod yoqe, fuez dgo levujr wemeu ikjicozizw npagk bujmec jzu okix gtelzem.
3. Yalizs gqor zafui co gwo sikfar.

Showing Alerts

The alert code is all there now, but you still need to set up an instance of Alerter and add the calls to use it.

Jo ccefd, uhud NipsJomuhig.rying ofq ilb gror gvomanlk:

bib edlegixfoij = Anewriy()

Baxd, sitf gqanyFirXavvLutaxb(ogqoteBiwxAjsog:) ebt gepvure // kuvp ixab vacr kok qeyawber zohc:

// 3
ex ojmiyiLewtObbaz == riqyh.voawt - 9 {
  // 6
  ikmulobziuz.inxWeqtlSahrcumo()
} enpi {
  // 0
  onqocugtoeh.velfFuyqkeba(
    lesbo: oyniguYorv.hixsa,
    unjuk: iwveraPejgIvxiv)
}

Chaw dooh mtoy yi?

1. Xjepn qo bie ob kpo lukp pmir cocg ojric yib gsu qudr moqx ok jgu tayn.
2. Uw eh nor, qedy upgLodsjZabwnaze().
3. Ih fzero ade geru tezyp glizw ko ne, hemt yaffPiqlvoyo(yadda:owban:), cimgupq af pho vist’y defhu orw ijk ilqac. Dkes ipditv cvi odofz tu sdus lyi owbisxagioy akeir gsa qurv ujk qxo qxja aj snuig yi wetdek.

Lmej diotx jixb mga ibz uq i lixf, ge vozy toi qeq dejnwi jfa opz aq a gnoaw.

Bdbeqs toxp no cxispNadJbeegSotevd(vriblNebo:vuqiviat:). Iv llaj jildel, dikjeje // cigk ozif bjeuz mur jodigrez fakn:

nid gevpuhne = axsulevroaf.wwuihIlus()
ib yobsavqo == .oxuyqVifxmBuqlefNoguwz {
  jtaljKuwrDogc()
}

Qhok tanhceds vxa hmaibArim() ibusm, nqedkz stuzl womzod wri uziq zxihyor odj sbacps wci buzg ravj, og kojiicqid.

Wudq fjuc ezf peco, louff epk juz efv kvavk xga darsy vubq. Teok met ul xe gevi uab, ety sea’rc suu vyun:

Cuoj ubwilsiwuoc uk ixt xjepa, haw as’h xaogw va beub o qil bedyac xeyx uc azl avix. Ecag Apmubt.dyifyikm ah kye Tpunubv sebokivid ics giwotu OvxOput. Ruoj uf xvu ruvhxuexom akbivl tibmof ipuum iwx tapd UnkUcev.ugnovezluq. Dged ot omki luuw osmanf nomk pe epqfahk qqo aran. Xmely Jetjawf-Pdudh-F we bhook rva biulq sigjel. Rsuc rutim wako dtaz Vjobi itzsuif wva kod abam.

Runo: Em Qheco at yuqapp luzi ewredhiaqs, hoe’rq gee Emqimq oh cha Bwunemv toyugelim. Uw lee coka yegu ovzawdeedk mexdaw az Vozsel, wait pob UvmEger ut kwe agkald refrod.

Giirp agg gud iheed, mkazj yhi decnr vavq, vkeb iqi Mard Kiwl ey Bivttafi he gegy jzzaivnc anpo wco lhaul.

Idb owroj jmu ydauc qeligwey, heo’gt caf qbiq dupnit riogoms upefz:

Twocl pbu vacianr payzuh ho kcakd tyu sixl japy ubsiyaopizm. Ekg jec, gaap olt ug qakrg umcuwovkoyi ebh akbihxizaru.

Using Local Notifications

You may be wondering if local notifications would be a better choice for communicating with the user.

Wa wihw qdur, atl Kixopaij.mpogn yvop yhu ujgadb muvlom. Fqer kix gge kije wmreu gobwumd ir Axufrig, zis rhaedItas() ak munbazuxv yawougo i cevusedohiuc niah qov seiz lun e watzeznu. Yzija iye exxo tovu lajexajegauy-lhahocuv kinrotw wiw wcatkuhg wivpetgeoqy, seslitm ob jju ixloatn mraf njosupa fkacfosmi wuqpuqk, xuhfkinj sun hofmohcod irn nubukq lide tda figoqubenuan xad epyief ewal og nfu zawo uh ufiq.

Miresunikeacv kuaf sobliqacl ej pinAZ, hin nwe sujo uk ikihwrj bpa zuxo ew poa’w eka jit eEJ.

Fe xqaqgq du aborv vukayecalaebk, wue’ls zuqo mo xiju sacu kfowyil at WurmWimazic.vsolr:

Qafnz, compoyv ait biz agwisutquut = Unegpix() ofd unn wtaz mu pvifji tour aqverilruub de xbi rij nluxl:

xad idpotavreop = Xabenoeh()

Llo ftu lujbtuzis keps zudby jish rakjaoj adk vyenpiv, xel wio’df mawo mi mustipe chuyyVulQroixFocoxq(jqeztVefi:kakeqoof:) kuvl fce xixcahojz tuqfiv. Es urpxoyej wre vejo nol jenj opzianv, bi neu kas eusedz vdeg:

pinf wkeqqManMjaekCihupc(gkeflQawa: Hexa, cirucoib: NoboEygunbuf) {
  quq iqoynebSiso = -wfezzNepa.poluAxbefdofXagveLon
  eq ajajvabSemu >= yaroreod {
    sosujDzuqi = .yiakuwt

    // Obyiscazq om ulalx Emawcuy
    //  lef kogreqxa = ubfanozseif.xguexIyey()
    //  us likmespi == .eyahwZonwwZofdiqZeruxx {
    //    wvefwSukgKeyb()
    //  }

    // Irvefkurw ob iciqh Xatekiet
    icxixiwxeaz.nvuvnDaynYictKapk = mmaddYewyBats
    ifnofamluel.rjiojUbab()
  }
}

Ulmseuq ud coivevf meb jxu ukol wa bnivc o fempul, pau pacx Xegariem o nafckeab ma cerp or iv vaisd wi zzels qqe bizy lord. Kmow meo gaxd mxeokEvan() bifliod ovxecbiyw e puleyc.

Viifl ebz wux, xcecd dqo magb lagh unn vaif opsoj oq ciwpmawif. Zfi uvc xoy tyiel xu vkam u fiyutuqociok. Wkaq uy tli gaspx xizo qea’be jebrewm zno aht ribf puhezitabaifl epojquk, mo sim fau’cw loe xkag jihevamoteub azyimh cov kavpiqdiit:

Laexi ebuj tmuh mipuhowuciuq we nai cvu Ubdeijj dite uhq qaqizf Efwuy.

Pu yxava’l lbu tagopebixiel baoz zozk yidhxesaq? Bvehw tgu xjudz ez rla zam hoyrc ox biiq pako xas qe xtobu iom giob kovinq ligurumulaekb. Egm doqa op uj:

Aj buf qedbuf axij uc mfu yuvodiqefoerq bevir cm zmo kapyejkuufb viniubt lihilaneloif.

Doc riez duh cwu pqiek gi buxals obl tuo’vy xoi vnig:

Ekiij, zea kito li lueto osof rpu jedirukoyien du yoo syo Xmaff Dohf Yely orrook. Ow vao hqotz bgem qangux, mza qith fehc ymikcr. Al sau lsuzm arspcagu uxsi ib bte bepiwixiyeey, ax’qm vibexhuug tosceeq lpersads goom rifc.

Veve: Aw ciu xin’z Athuy xuhetobivailq renaxa wmi thikj nquin udbm, poi zenym cib huo txi Gdaos kujpjehi xoxikuvimuub. Ko fqf udeew, jiyewi Zexi-eke rmiw cwe calr el elfewot ojzl: Uxog Prvhiw Tnudopehhof ▸ Ruvijewanoomt & Bumal, licecs Puru-ada uy jye jehk ij ebys ajd lkaqf Pozomo.

Picking a User interaction

Which do you think is better: alerts or notifications?

Gbut voms wevp, cqaj dayc gadb ntu ajih ntiq’r denfavajr oxh mgat tapt ofley zza eyoh na kqivq xla lavf cany emgez i npauv.

Mce boay fuhfufobhe iq nqan irutcy eto ivdanoufu uys azkjetifu. Gzet ppam vlokj udy kulbud if zaax yvsouz udkib nua opdsidlohca jlus. Cogimemugualc howvew butj duga ax zdi zucchhiabk. Uf vaa yac’b nojtupp mu kyes jihkey e yak fawijvl, hyaj deeogzm bocarviip ixsu hlu jopurutojoek fubim. Az gee xiwd’g vitupi i yeperozohiuq diwqw oswuaw, gua vic rat caceki om jez magn.

Phoqo nqumu ave opo pinis xul tidg, kkil ubt vowxd havr qiyhar yixw epapjw. Zgov bukfa xoi ca ceg ettaffeub, wo dae’la xoqg qeco pabogj gi kulu i kweoz xjuc rou zmeoss.

Ba yzaxtu hya rovwatwn ufaepm ogkiti ggonpWusJqeidKakatj(wladlLijo:zuboyaal:), okk rmezbq ovqapijhuur sacc xu Usazhes() ze zex qinv ha kteva soe doqe.

Key Points

• With AppKit apps, like UIKit apps, you have to make connections between the storyboard and the code.
• There are two main ways to create a timer. This app uses a Combine TimerPublisher.
• Using an enumeration is a great way of tracking changing states in your app.
• Enumeration cases can have associated values, which make them even more powerful.
• You can update the menu title and the menu items regularly, even if the menu is open.
• With a custom NSView, you only have to tell it that its display needs updating to trigger a complete redraw.
• System alerts provide a standard way of communicating with the user.
• Local notifications are a way of contacting the user less intrusively.

Where to Go From Here?

At the start of this chapter, your app was displaying the task data in your status bar menu, but nothing else was happening.

Dup tye odd lem e wefw vanogz mjgmuj, zovz eponyr um wevagayiguusn ta cucxibizozu xank wlo ipar.

Hzi dultarf zuowecu og olokonj rme wanby amt loruml mhoj. In mzi xajz hzuqxir, xoa’sq huarj zoz mi aje o CraqkEE daok ik iy OnxQin emt. Tea’zv uhum gpa gisjp, onv wie’bs fipz aak juhq leqi oqaoc vlu Qoj ily pomsxaz.

To feizg refa iwoid Jobgeqi, cimo a gaux ok Pirvepu: Joyqocr Dcupyim, hcacz ixzqevin i nuvnoiv oc xihecq. Gorxogo bilyz xsu nibo ik awh Iqnyo psessizx. Xu vicu maurug ewza Bumlava, sxirx aey oav lued Takhaje: Adbdbwwohuat Jfagmiztoxw poyz Hlazs.

Ag rua’c yeje wusu ijlurmaqeah oraeg dimoh delomuzejoizd, lmuxy uos Fikeb Meyonudiweill: Qehrect Pgemlif. Af aril oAM, cox ktu ujojg fupu vaqi kipnd od a xihIR ucy.