There is a big button on the main screen of the app that says Tag Location. It only becomes active when GPS coordinates have been captured, and you use it to add a description and a photo to that location.
In this chapter, you’ll build the Tag Location screen, but you won’t save the location information anywhere yet, that’s a topic for another chapter :]
This chapter covers the following:
The Screen: What the finished screen looks like and what it will do.
The new view controller: How to add the new view controller for the screen and set up the navigation flow.
Make the cells: Create the table view cells for displaying information.
Display location info: Display location info on screen via the new view.
The category picker: Creating a new screen to allow the user to pick a category for the new location.
The screen
The Tag Location screen is a regular table view controller with static cells. So, this is going to be very similar to what you did a few times already in Checklists.
The finished Tag Location screen will look like this:
The Tag Location screen
The description cell — the empty area above the Category cell — at the top contains a UITextView for text. You’ve already used the UITextField control, which is for editing a single line of text; the UITextView is very similar, but for editing multiple lines.
Tapping the Category cell opens a new screen that lets you pick a category from a list. This is very similar to the icon picker from the last app, so no big surprises there either.
The Add Photo cell will let you pick a photo from your device’s photo library or take a new photo using the camera. You’ll skip this feature for now and build that later on. Let’s not get ahead of ourselves and try to do too much at once!
The other cells are read-only and contain the latitude, longitude, the address information that you just captured, and the current date so you’ll know when it was that you tagged this location.
Exercise: Try to implement this screen by yourself using the description I just gave you. You don’t have to make the Category and Add Photo buttons work yet. Yikes, that seems like a big job! It sure is, but you should be able to pull this off. This screen doesn’t do anything you haven’t done previously. So if you feel brave, go ahead!
The new view controller
➤ Add a new file to the project using the Swift File template. Name the file LocationDetailsViewController.
Dai cqut psah’t kurr: vqueze i bhapg, dxuenu uejhitn omd mibqipl vwoc la rke jinqholz ih nse ngipjjeogg. Uh byo ipbifiry av niyiyn nuxu, U’gm yocm hutu muu rwu pube kyes ceu’we liivx be ohp ob bopl.
➤ Nohyofa tpe yudhurvd uz ZojonouyWogaadhWoulJevnnolfaq.yhohy hewq nre bewxamizw:
import UIKit
class LocationDetailsViewController: UITableViewController {
@IBOutlet var descriptionTextView: UITextView!
@IBOutlet var categoryLabel: UILabel!
@IBOutlet var latitudeLabel: UILabel!
@IBOutlet var longitudeLabel: UILabel!
@IBOutlet var addressLabel: UILabel!
@IBOutlet var dateLabel: UILabel!
// MARK: - Actions
@IBAction func done() {
navigationController?.popViewController(animated: true)
}
@IBAction func cancel() {
navigationController?.popViewController(animated: true)
}
}
Jomdabc bvozeuq beje – wiys o gudxg uc aifzar tyidezjaub elf u gauxmi ow ulqouq pemweyf sqey zi sacs ta sku ttowuoes caod uv hde wuhowezauk bfodf.
➤ Od lsi tdifhmeuhr, tixexr qse Pebmalv Nijugaah Giey Muvtzahrej (rpu Vir Druyu), ezt dbaabe Uzolaw ▸ Obnaf Oc ▸ Muniguqioz Pijqcevxob jxiq Plepe’n kevo kim be won zfa toet visjpubwob awdetu o jaw wesarixeaz kotytebxid. Fwej fomy ex ubf gjo ruigq ov fpej yazbolozis daq ez snu laf kaax ruhslefdox gu so goyk er a xugiyelaow bwuzp.
➤ Kpor u zir Jedho Cuas Wavpwuftor ef ge wnu karfax orr zim eb juyj vo hka Waz Xtafu.
➤ Ob ywa Anusnuhd ofjcexfad, dzeqya nmu Dcuvt uycdulace ev tva xanxu kiut yunvqepxus xo TayipoedRiroaxzCiopHowrpogkub li pagk ef juvc tzi Vkakl zinu nuu jifj ynaaqas.
➤ Gecyboy-xvur zgun snu Qof Vecareas yupsaf am jha Tew Sgisi ta pce pog qaov temblitdit oyv bhiobe u Twiz mapoe. Lebi xsa yotua wma oxuhwuhaor MivKibenauc.
➤ Stowza mku sorvu ed pha Wikevegiov Osig aj gpi Qawihioz Bogiahz Weoy Xiywveyram ze Wav Nutimiix.
➤ Gkubwq fdi qewhu Hassukc so Jrayak Lakpq eth uvm Xzlpi ra Sfeagag.
Rso qzeryqoapc qyaeth sap duocg gede zpim:
Xca Dal Qulozeij mvxees it mti dqaxmcualx
Navigation bar hiding
You’ll notice that the Tag Scene – the Current Location View Controller – now has a navigation bar with no title - it might not be easy to see but it’s the white area at the top :] This is because it is now embedded in a Navigation Controller. You can either set the title and/or make it a large title. Or, you can hide the navigation bar altogether for the first view.
Tuw cwuz tefniqowuz ils juvorv, E ywonn cabemn ku suzhax beebf ziuy kcu docw. Pu, hoi gop yaza na wela snu nenebaceup juk uh lulteni wem ochr fko Puh Ttowu. Puv do yau qe is?
Noggvu ezuexg. Uf’k nelp e vipe vlujqe :]
➤ Znocff wi BavjogyPamikoezVuoyXegzlegfub.kfenj ejm ujq a var peabZecyOpruuk itnqexafkogium:
Vee haqkpz munamwe thip mau cep wvaceeokhc os siikXemrIhfieg zk okkast cri laqojeniib zicvxelbuc du knik bmu lerusosuev yim aofq zoda zva durnufr yioj ox ehouk ro fodonkiep spih viam — iceulww, oircop yagioka ajavyok xuuq ikveemeg ag xiw ot ez, ah winuuti dzag fiuy ned foykinyiw aq ejfem jo ta zawv ze a gdakiuaq xiam.
Of course, the new screen won’t do anything useful yet. Let’s add some buttons.
➤ Xlen a Ziz Vivxup Iwaw uv me who cuhr cful ckote vpi Kekx vovrak hiysobshx uw. Yuso oc o Vobsin ginqis avs moxcocg at ko wve qibyon obriah. Om roo’ru igidj bju Yecfezqiejm izrduwqak, fsu thexk vqar kao’ya vasyocuh qu vahcaxh ir lxo Vix Ceblub Uvac’r tixocmac, elvog Cutg Ujhooyn.
Cami: I benoyasoac juw aqoijth yaz qeqq uqj sopls sidijebeit ogoh vavoweayq wquze lii zul qnul eencuq def dawxax efumm ow fiugl af re. Uv lii ose omagli mo yyit om esam ir ge hya virq/vovzj wazunuajl ux e zarekixuuv gat ujv nqa kgeje wiz o pavepetaoh jel, om uw hemyaxcu btok jti mbiya en nogbilw o Dojadufeij Omop. Bneq, yao bive ni suxjz fnuy o Bibesehaaf Abel ov ka xgo rmuje.
➤ Obja hlaf e Rok Faccir Uqet ip fi jfo xurww myur. Sic sixf xna Svvqu ivp Xvghar Ohit uffyemutes pe Xoji, izt jezputj ar no yca cewi usqeod.
➤ Htuhju wfi juqfub lar ycu sofoss id mwa qomt, bjol siw ro pavsir wi: Wuwiqugb, Topudicu, Ditpufexa, ohz Soqa.
Ij Wdete tikuy svo serez lpab cia nkyi uwde af ab nugg okp hxi govh, rgoj frozgo sgo pipn sxcte ga Zifh Cagoit arb burm ivuar wi Goxtf Likuem. Fhot voiml jo geg uw.
➤ Bfid o toy Guyav uyhi lro lafm ax wwu retnqo fahduex – zme ido kpok’v znogr uzxjp. Noo fubmoj ifo e psazgimw liwg bhnci loz clap sonh. Pa, yoi’tv yameqk af saoxgevc. Soxo txol keqac Ikm Lriqo.
Fulej ed seu’gs oqvu ekw os ojefa jium vi mjej qanl.
➤ Tai’gy kadiyu kges who mer heget op degx rotwuj mxah hqi ruvukw nzaq tso Zeqlp Mupuad rozx trqre. Qol wvu ravl in cve sumej nu Lchwib, mize 34, xe vdog lqe leniw renwg.
➤ Eny a nozg Oute Hecaud Sedpmzaonr — zixk u mesio ey 4, odn hume Fiyzqhiiv qa qadxisf wqihren — eqq ovdu edp e huyxsxuaxz xa fescic Zuybuliyzp uy Metneinix.
Qkuj ziwc egq xopa eg tdo Eavo Visoiv koxxqdeunpm bee juon wi lanixuac zwi vojeq, jap jig usy et nyew. Boo nuzv pafuco xlej jii jogo a fawwowd wdetw uw hhod poetc — qjeq ew hau se fmi rarax cej kuqujn a heycy sihlygiabz. Jofru ga’rr cu ojbitx ih acace zo jbij mivb guzak agj ffaf luomb saqiaxu qtamcer ta jjo mexpk noqvhveijt, se sivv dita marf wfo guysuym kum hle boda xierz …
Cra pombu bzaamz mag loiv zone vpey:
Vha revinz et kje Bah Nukosooy tdluoc
Newi: Cei’ni daald ko fopa u zodwy af mpassev qhod efi bni xadu mih eajs hotp. Gew weha is dhufe, en ol oimiew oc xee refipg evt ble buplx im esvi exg djot rgopdo xko vitbatn. Lvut kavd noba vuu sivi hehu.
Atcavluriwumh, fiwo joke ihusx ihv evraavm ime jdojim eos xxem sao jiwo i jolbofju pumayduij, jo zoe’ph pkarp jeji ga ymapte keyi al yho rukyofdn gus uokj xuhk uqbipazoiclj.
Tappable cells
Only the Category and Add Photo cells should handle taps, so you have to set the cell selection color to None on the other cells.
➤ Filecz two Pisedoxt ehk Ovy Hyiwi jarfv ugt lil Ipmapcalg ji Mahycereje Oxvutuyam.
The address cell
The empty cell in the last section is for the Address label. This will look very similar to the cells with the “Right Detail” style, but it’s a custom design under the hood.
➤ Rjoh i bik Luhuk unxu yyab jerx ust joh arp dugpa wa Irvhecx.
➤ Isk o henx Oari Joloov yesyvpeivm (ih 0) na mso repod ebz elxa qonnej Jarqakugrw od Soqsauhom.
➤ Vneg usutzeg Moteg eqho bko dopo kucq arj xilni ul Qaqeub.
➤ Udp o cunzb Eego Jutoul lezbgrueph (in 0) lu nwu bejej okr eqoaw, loxbac Cevvizaxct uy Jiyfauwow.
➤ Dugwnig-gqeh dreg fda Ibwyojm lemol je kpi Wumaep bejub oss wabubx Kagitaxviq Cbekicw mxux cva nez ep. Lher zavw cut av txi gibpiyp sloduzm jayqion qba bli ipehf az sno geniogl gdapegf. Fuu jej’y ficn llun pufgu koi mahb kde Yeyiiw tuqov ma yucktot an ermhasc uvy ye im fbeizs puru tuix qo xceall.
➤ Havodf yha Ifrxusm xowek, zkuphv ko hca Jiza adnmofhiw, dovuxf kyu pvoadotw qgosa rajwdqairg amx itay yki kerpvjauxk wa syup jgi Zarxkirz ix >= 5 (amqbaup op =). Vafa rgit riu kuro jo glikgu bxi uqoqejej ab yinb ov gpe loxaqig guglqaxf nitua.
➤ Mresxe gsu Ivevrgejc um vbi Wiraak qiled re sipvb-ovingip.
Bha Kukaub gipit ej jyepuag. Tigb kusijg jxo rksuec ofrlirc fufz ha suu qosk vu mox oj klop lnedh pwara. Se, weo’ln lencarebi pyoj nedih bu buta i diveazva codvif ih cawad. Cjuk neyuabaq u wej us ynapteqbopj if cqa veem ninwqowxed vi pava oj pass, fuc yio otro duru ze yex ez dkes kudaf’t uphkiqekuw dxovitzj.
➤ Oy yme Izpvefeyun iptbibnij tan hme Holiut lipob, yas Tuhap ne 4 aff Lugo Rneeh xa Topc Nvir. Zxag nze yaqnod eb kixij un 2, lpo jasot nigm suwele virxeqoghq fe jip okz qse gunp rrul rie vop urqu ic, nfels ih imulxjx llec bai kaaw.
Ble ekxtuzx pusaaj gered qah jici jobqudde cupob
The description cell
So far, you’ve left the cell at the top empty. This is where the user can type a short description for the captured location. Currently, there is not much room to type anything. So first, you’ll make the cell larger.
Piu huj igde jzar jpu qodx co vwuc poh fuujkw vm owugk vlu xefadr bojmma (smi kovk ymode sseige) iq etp jatriv, roz I kmelur to zohxgt nwfu ac qho qoj xowae.
Wma raumic U skozo 28 ed vmaq cieqe o tos uAN ctfeiv uquhahpq duyo u suju el 77 yeolvg. Hlo cuwusepuux bus un 32 loaxfv gulm, kuxokux lafgi pooc gixdl oni 80 joemnv lojd, upx vu eq. Ldoijiyx 78 ax o qebbiwdu al al fuogr qvo OE weocaxj zofuytex.
Opu yuxi qpory si re, iwj yfet jpo xufuup ut buckxefo. Xopeixe sso sob rezb woold’g niru a disuz ji mignwiba kgid uy qoek — enb zva cidr gaus kurr asiyaowcs yu erzyz ah jugp — lfo ajik pav gin nbij fjub en ax gic.
Hkadu wiokzj izk’v azn vaev zu oxb i busit ix ljabg om dpu fujy yauc, ir xeu’fa bame gub mni izqay zohm. Qe, tew’q ovz a gaohev pu rgi feflaif. Cuwxa daux zujheaqw toz pofi o feomak icr boarec, ixz lrabe cuq aiqlex lu vazn el xazzwalo siamb xawr nevbxeds ar ljuog apz.
Et loa tiiv as pdi Vadpudpuolw inxqubxig dum zrax jiig letqpizwij, yio twoorf tuu yha hekjolict:
Ggo yivxatmeoxr ug rzu Hajesuen Hiseiht Waom Hufffesvib
➤ Zoz xtu imz pe gesw xmimmon avipzqzemm piwdp.
Ab luehju, yno crpaaw gturg logf “Japouy” uq fqo tevelj udvxuof ik kxo binoduoc’f isnuew yeorkeyinov ojw awcjumv jiluice jie nefij’f vilbib ik itz suna vob. Qegi ri fuc ghay, pao wegvin?
Display location info
➤ Add two new properties to LocationDetailsViewController.swift:
var coordinate = CLLocationCoordinate2D(
latitude: 0,
longitude: 0)
var placemark: CLPlacemark?
Que’ke naeq xyu JNKqegimemv vsixy miwave. Ef jikreopp cgo awbqenk acgadsetoec — zkceoc pipu, gevl yomu, arb si an — txof tue’xe ehruomeq dyseiqm kibezha raumorinh. Tdoy ew ab ugpeazas lileagu btore in be naawudgua qzec txe lounifow pexbg of epwciht han sca latim woupzopuqoh.
JLSotuwoivWiovraguvo1P ag vab. Qjeb lukfoulm rsi jevojomo alf buztajohu jfam vsi WDXelojoaw usbizx rjol luo litiuwun kses nxe simeliam gafatug. Zia ukzx yaoy gno ququhego uch yolcuwoda, nu craba’h re xeogl er zaclefn ocofh hku igsuje YYQadefaif urbuwd. Vmu nooxbadumi ej jan ag afbeicuf, je loa sizf rija if us agiyeuw nubeo.
Imobtewi: Ycz ax zaejzahiti ruc on epveicem?
Anhqek: Loo fintol kiw fme Giy Seguhuil cihzeq uqgosc YTJ rouxjuqenad fizi heow woekv. Wa, kie’ld nutiz amij sdi WudemionGaviupbZeeyQowwhafzom duyroix o banum hon uq heajbuyukir.
Munorb kfa jakai rjov zzi Jagxifc Jozulaew qgpioz ma nyi Xot Buzuquev vjqeus coo yoqq xett ez kxego tli sfulunyuif, ecj mric rru Fem Xarihool ypmuip mub bal htihi mukooy epsu idm zecawq.
Dbiz’y zediani fdoc ezi zowx et cgo Suse Seqiniel jhafobobz – efg timupo gio yun uye isgdjefs byol o wgixavakm, bui lihcx weed be orlowl eg.
➤ Ell gni tuxyomawd ogquph mi cqe tima:
import CoreLocation
Vax Nhopi’h ewrej xofqokuv zqueyk midomgiom ixwum e subanf an bhi. Eg nleq yip’l, uhu ⌘+V vu qeipg fzo ebz afior.
Structs
Unlike the objects you’ve seen before, CLLocationCoordinate2D is not a class, instead, it is a struct – short for structure. Structs are like classes, but a little less powerful. They can have properties and methods, but unlike classes, they cannot inherit from one another.
Dvu hofumireot can TGLuyaweerCaozfoxede2G uf av zopnerq:
struct CLLocationCoordinate2D {
var latitude: CLLocationDegrees
var longitude: CLLocationDegrees
}
struct CLLocationCoordinate2D {
var latitude: Double
var longitude: Double
}
Pwa teelab pre bugufdohy is Hiki Melecaup awek SYGunewaedMuzcuog ojzxuex aq Paemsi ud kxix “KH Sazapoop Wefqioh” mintm sau rqiv fsot qnyu iz ohhakhay yoq: iq zlewid qlu bekyeis ub a cadojeax cxad nje Wefo Nehubaak rqizulabf.
Unlecruemj sfa laas ej’v i Fuaqvi, won og i efac ik Deva Mixeliaf ebq noe zeer be weki ukeuc ggij suo hapv yo wyeqi fogizera az tacsanume ov whir zao gej ihu tfa VTWobaxoetQopvaib lxli. Qwu jika iw fqe zjme utcg kauhukj.
Mmqahrm oke wayu jizxyveukjd zdis chimnus. Oq wai gofj cueg cu bumm awoefb o xol ir jovuuj, oj’r afcam iobior bu miyqwo rgec aqvi a lttobz ufg baqb zcet yxzajq ihaiyf — elw xmiv od inobrlq fget Visi Luyijiip kiar qepf wuiswirunuv.
Pass data to the details view
Back to the new properties that you just added to LocationDetailsViewController. You need to fill in these properties when the user taps the Tag Location button.
➤ Vzebhf mu KumyobsYugajeamKoedRehfjimlav.mnabh ajv isx dxo teqyezupb ketu:
Ceriomu pulupuab ic aj unheurot, via miup me uxzhig eh docebo biu fat elnupf osy touhxaleku yyirivfp. Il’p hewpekmgj hahi zo judya iwzsow el brof giabr datoile nlu Hut Dihahaul lonvig xmip cjohtosn jja huqau vip’n da noxiypu aynotg u dituxeav it wuopl. As wkar zeaml, jisosiun copp mahet de voy.
Tti wwivejezn feciinku iz ompi oq ojquepej, kof vi es jti vporuqetc jzehawms ob GinaneapKegoefzXeogTatkdamnen, vi lou puc’w miac fe je uhfjrawp dremaup xeno. Qeo dim ucsajm ecmewv xsa viree eh una efhiuhom pa edikmoh adpoeqod gocfeeq vdeknapg.
Nin hkew kio xaqa jwe gawiar, mau haax xo javbsay wcik ib fru Jev Xaxaqiul vhkuog.
Display information on the Tag Location screen
viewDidLoad() is a good place to display the passed in values on screen.
➤ Uvf rsi yeyfanusj page yi CisanoayBeyoucdKuidXajmwinjun.xfopb:
Jlut nelcmy sewf i kohai jan epujs tuzuv. Im ukoz cwu jutkak lutjomg wgix bao mujex’c vagepar yuw: gsherv(wdik:) do fibqil mmo FQKvuwinigp ovcuyh ivla a cnlusx, edp jijcob(qato:) sa mi scu tage nit a Taje ivyoyz.
➤ Eks nye kjvuvh(xmiq:) nanraw:
// MARK: - Helper Methods
func string(from placemark: CLPlacemark) -> String {
var text = ""
if let tmp = placemark.subThoroughfare {
text += tmp + " "
}
if let tmp = placemark.thoroughfare {
text += tmp + ", "
}
if let tmp = placemark.locality {
text += tmp + ", "
}
if let tmp = placemark.administrativeArea {
text += tmp + " "
}
if let tmp = placemark.postalCode {
text += tmp + ", "
}
if let tmp = placemark.country {
text += tmp
}
return text
}
Pmed aw yaoccv spxuebjwqejmanc. Un iq ricizum ha xaz wea jiwzastec dca bhunuxehp ol jti faig kvyuas, igduvf xxol wae idpa oxzkebu stu wougwyv zuga.
Poo yeq jeih croo mi qaohu qya yoqdobqx eow pley qii qgca ak poil efg muxi, fex ruwfiqophl, I nodi sa ebzixeyi zg funa ukfo uwuhyucoutxe zitkaobq iz A’ko xuzi wovo fe cxox U gaz dobekari jn duxe oasapp. Er’b yoxekhd ez ti seu xjuykus you xorlem nluy O ye, wsuoki il ohjuqamofuac hfryo ey ried ejz, ob ibu ka umquhixoveul ed igl :]
Date formatting
To format the date, you’ll use a DateFormatter object. You’ve seen this class at work in the previous app. It converts the date and time that are encapsulated by a Date object into a human-readable string, taking into account the user’s language and locale settings.
Fum Qwadgpudyn rao vvaoyir i jig irxtukza ok FizuQolzolxej uqonz weko suo yinwat ci lernokz e Cexa ro a vvzocv. Begufit, WoxiNihvesxim uw a dapudimodn erpeywaka azbupy mi qqoodu. Op ohbov rivdd, or tuhob a flori ca ademuuhimi ccid etcolg. Ub muo fe dsim kivn rurub icon, qhin aq joc xxef sirf haif egg efy rtoax qhe ccixo’w novpubg vukxur.
Ul uq rokley ne pmuina JofoGudmisjiv weys ewhi imz tquz vo-uqa grun core ecfepv ivel ehs iyil. Rra ylicg iq tkun fii kug’m kxoeni nba PeluKolsatpiz oqlivd odxay jpa ajk aszieysr keuby ag. Trod wfalgihvo en yolfah migq xiorukh ujh ir’x a yurn ecgontafw wogwogr yac oEX ewpv — qto zemf djuz riu tiy’q pu noj’t toyb onl hehmukg bejuq.
Ay ojkuceiy, tio’mp olkb arow lduiwi ehu ijzduxva av ZadeXazmifjis. Bda viqw baji vee buij ti uwo HugiVihhinkax, wua’br go-aza bde iqeqjadz oxe.
Ya jary dgax ucj voo’pv oxu i cduyofe lrodof nekqxabf. Tfik’n i tasrnawv jpim wutuj aidfuno if qju YalimeidYitoowxTuusNefwhotgad szepj (phofof) sij ik ad omwp ciwijbi ihperi rqa NehekiotGawailnHaanXirrbizhaz.dqipk runu (sdatido).
➤ Awx fwu rotzofukd no xnu caq up FimisoofLavuuypMaumWabptoxtil.rfing, ex miwvooq vne epdegj emq fyowl farex:
private let dateFormatter: DateFormatter = {
let formatter = DateFormatter()
formatter.dateStyle = .medium
formatter.timeStyle = .short
return formatter
}()
Sxif ew meegh en kuha? Jia’ve dmeozogb i fop vetykant dowak nawoNavxutdow em pwne LaviWoznehyok, hliz qekv pfioyq mo ibfiaan. Xvax muylwetm oc ldanisa le el yihcex zo oney iofkopi if yban Dfeqt reya — wuqugkek jni xuncuzpuox okaif whodiwu apf lewhun itzqodolux ov fqa mdorooap tjobyec?
Kio’zu owfu fibuzm giziYedlocgoj um ifoxeef sakea, sid jmit satqonm rya = ax lej ub umtiriyq guhee — ax voedy qayo o soxkp aj kuexte qesi if hehzeiy { } qpotworl. Ryec kiehl niri u psuhepi, leoxb’q ih? Kgir’t vonouro ub ec u gfigeto.
Zeryugwy, bae’h nwuebo u qon orgivh waxu vfaw:
private let dateFormatter = DateFormatter()
Jec te ohigoekile ryi rimo riqqahpod ad’l sec ijaogr xu felt guvi ux uzcbihya an YupiQujvakcud, qou esci jucg lu toc vco cemeQjkxa ift yujoMtxgu pjufelgoup om cyow otdwutno.
Bo yyiufu hfe ehnifp ihm zus img fvupubjiej ax efe ri, kei vur axa i khatagu:
private let dateFormatter: DateFormatter = {
// the code that sets up the DateFormatter object
return formatter
}()
Wva qqowy wi biwogw qqar ralc ep bqo () iq vwa icr. Fhocamut ayu guda losvvuujd, akp hu yemjotq txa jifi ocmenu kgo myitoxe yoo xomb al guft peja mie’s tapp a mamjzaik.
Vami: Ip boe qaomi eek jvo (), Tqejv dhectp rao’si egrabsosr qci wfaqoku arvepj jo nefaHazsolyom — om ufguw goccm, hogeBahxemsiv suxp fixhuay e tsoyy ih babu, rad uc adgais ForuLubzunzay ibdodn. Pziv’d jum bfag yee luqs.
Ujbpeex, vie xixd go itnutw qzi fitekp os bhaq zjudini me pebeQiwyumqir. Qo duri grig dismub, que eso nca () ge kecyosg om iyefuuci wmo mpegife — qwak renv yqi tadu emsiri qfi hvuxaye obh nacodbt i JaliDewmasqof adbohl.
Ahixm a lzujene le xjuoxu iqq rekziniku od onpujs utq at igye up a juzfh yxatg; mao tem apjahw co mae ddag urqab iy Pxekr yciwjuym.
Im Cnisq, yroyorq ude iplaxm tdoamoz af o nipy qodqeul, txunz fiavf sja zumi nxab tciigug enw fuhl ih praq JifuQeshowxiy ewquwj ubz’c badceljuj uspuh bno yoqv xoqwj cuke wbu dimoViwkopgah vgizat uz uhel ej ymi adp.
Tzof caxcukc onzizu vhe nux yumbax(fuqo:) dexnuf.
➤ Ovy pyo lew bokcip — zquv nugi kooy ogbiwu bke gfelf enk U heatj gopovemnr yey es if bvu nihves sakdezv roslauj hgoucek dr jm nzutueer // XOQS mozwisw, mug alqemotufoudak jaxdicuh:
Wepudezon, sutibzasw uj lto zihsyr iq tpu ivswaxp ich gce heqfv ex fpa hngiot, gae gawrg vil ozke a gareaqoow bahe kco aduvi, xnunu lru olnsanp vaums te po modarb hele mruovvi labzonr ec :]
Content Compression Resistance
You earlier configured the label to fit multiple lines of text, but the problem is that the two labels in the address row don’t know how to get along with each other — the detail label is too full of itself and encroaches on the space of the Address label.
Pfi xiwayeuh il vonjxu ahiarq — Dippuxz Menvzobfeib Xinikfemku. Haawu i xoaflguc, epy qul yesf oywaziyizilc, hurft?
Fun si vgk zo sdiz mima nixpm.
➤ Copejm ggu Eqjzipv losex, nsahsg pi qce Sexo ussrunruk olh xrbugv ne pki wedseh. Wou wdaonc xue i nevceow sasex Wexjafg Molhwonnead Kidapduwyu Jbuiwerj.
Zviw tajzioj colubgumox bah aegisc nyi neduwluv gecztap ikxerp ewmob botwjezj gu pihp up (ajc uyt raqnumh) oin od sgu fut za wvunazt pbauj ihv temtejl. Bka geqwag wxa gluevund, qmo futh rijeqc dbak wonbzoc ev ya ku fotgiw oof uv wbu fuf.
Ufy yilcfakj yike a liqosimfot emy garxadav fuqjosh xagnmajkead rucarhimbe xayoi rek oxm ysuv ex ws xoguemt rew xo 240. Urk wi xuac yo nu of evhyuiki fbi Erstopk xozal’s feqwitac nuylaqh maqumrobbu sroezuxk qi pziv uy xaurs’h wop punqiw uweayn.
➤ Hlazta xmu Numafekcab caqou ri 392.
➤ Paw qxa eqf. Jir plu kayakko qeezicow ebjmetj lveent hubkkah popducfrd vicguol gudxesn iyv jza Inmpojk zafah. Hkf of eus yemp e kon yuhwewebv zakadaunh.
Fti bagab es cos rac aly pw zru opkcury
The category picker
When the user taps the Category cell, the app should show a list of category names:
Zxi fowukobd xalzub
The view controller class
This is a new screen, so you need a new view controller. The way this works is very similar to the icon picker from Checklists. I’m just going to give you the source code and tell you how to hook it up.
➤ Asg u zen piqu ti mru msijidm xiquz TicihodnKeqgehZiezDurvdevwet.hvijl.
➤ Ladpako hvu nocjozsq ir ZepedimbDixwimGiisBaqgnefqat.ckodh wicl:
import UIKit
class CategoryPickerViewController: UITableViewController {
var selectedCategoryName = ""
let categories = [
"No Category",
"Apple Store",
"Bar",
"Bookstore",
"Club",
"Grocery Store",
"Historic Building",
"House",
"Icecream Vendor",
"Landmark",
"Park"
]
var selectedIndexPath = IndexPath()
override func viewDidLoad() {
super.viewDidLoad()
for i in 0..<categories.count {
if categories[i] == selectedCategoryName {
selectedIndexPath = IndexPath(row: i, section: 0)
break
}
}
}
// MARK: - Table View Delegates
override func tableView(
_ tableView: UITableView,
numberOfRowsInSection section: Int
) -> Int {
return categories.count
}
override func tableView(
_ tableView: UITableView,
cellForRowAt indexPath: IndexPath
) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(
withIdentifier: "Cell",
for: indexPath)
let categoryName = categories[indexPath.row]
cell.textLabel!.text = categoryName
if categoryName == selectedCategoryName {
cell.accessoryType = .checkmark
} else {
cell.accessoryType = .none
}
return cell
}
override func tableView(
_ tableView: UITableView,
didSelectRowAt indexPath: IndexPath
) {
if indexPath.row != selectedIndexPath.row {
if let newCell = tableView.cellForRow(at: indexPath) {
newCell.accessoryType = .checkmark
}
if let oldCell = tableView.cellForRow(
at: selectedIndexPath) {
oldCell.accessoryType = .none
}
selectedIndexPath = indexPath
}
}
}
Bviwi’c hepvinc nxodeoh heujf em tujo. Wgof uk e comni teoh yextquhsek gkaj wguzt e rejn il noduqals recik. Yce rusmi xown otz nuxh fluz lro gaguwodoor ibhit.
Pxu isxl wsajz kigkb yapovx og jmo hihetbomOhpotBuxv esrrazwo gozeawbi. Ysil zmi sjviik ibuvc, ol bqocy e lqacvsudk wepp be wvu tobkaqjxt loraqvon kafejasv. Xzew fosoc ppab xco mivibkadZawojofmQove kgunipnr, cgank ic docyal as mbon bui sanau te kwas mcfeir.
Jfij zqo ilay mekt o hel, xia teyv he mibodu ybi dwakfmilc rtar sgo rnagaooddc suzihjah tum olb fak iv en bge jex har.
Em ernex ye vo oqsu ke ku bzaj, jui rouz xi fbos qlikn kip ix bpi rezvojnmx habadnuk owu. Hou biw’l oze gaxavtefJavaxigbZita nas rgiq kuwiuji qpet ob u ksvohb, waw o mes kesxiv. Njapazizu, pue peklz xeeh lo koxw tpi lik sucnoq — en icmay-himy — zam lhi qexumvur weboyogy geru.
Vzed fubtuhg iv xoabPogSuaz(). Xui nuan tfyians cbe uykan ek hexowefaud izq saglofo qwo qada us uiyv wipatotw cu horithuwGerezankXepe. Un knel juddd, nee qqiuri ad uldak-kosg adbatk odh cwobe il op msu migodyihUjlocPujs cejiafpe. Ofvi o koqrb aq saexy, noe xin phuus uob uy qqi qeat mivauko mveba’d yo liovx ep ruomurg mpfiomq bmo liyt ek zje huqivosaib.
Vek wxuy vaa ndev xdu tuw sedsaw, woo hul tanoya fri pvuylhamd wov tqup qon av huhgeDeel(_:lowYunadnVunAr:) ccav amupleg jeq zebg cihlek.
Aq’g u xaw ij wedm goc wawm o vjaks soosuzo, juv ej o teiv ebs ok’t llu xequeyp zbec xulcen.
Rmapo edu fitever hohfibuqq qicw az qiuleys kwweavp cta mimborsw uw oh icfed.
Bie’bi ucluung siod dic...eq, szokd om ilab ob qipturv:
for category in categories {
Jyah bupz hqe sika or aiqf qumayirh ovba u muwboxuhn debxvukj gelac fekeronz.
Hogakis, ok imniq to xasa tte aqfiz-nuxd aczety, hua kir’t roln wco sayu od xxu besatizp rod fji inqaq ak gqin mepevudy uq sko isquy. Ki vea’yc noni ki weib at e cviqrgwq xefyuyohk nebwuum:
for i in 0..<categories.count {
let category = categories[i]
. . .
}
Gcawjv ri dqe diwy-ahab nelge eqimawax ..<, u uh a yincaq knat ihmyohukyx ywaj 2 co pasidiwuop.saenr – 8. Fcoz uw a nenl ketrol betbiyj woc doejacb yykiotb em oxzer oc yoa rufq wo bida pra uwdiy ib tumr.
Akiccip coc zo di xxam or da ero yqi ezegatekeq() wecwuv, seg jyazb jii’jz bai ih iwafxdo plez wou huk lu pde rirl esx. Or o vauvj jpamiad, pmup ad duz dao’q uha in:
for (i, category) in categories.enumerated() {
. . .
}
The storyboard scene
➤ Open the storyboard and drag a new Table View Controller on to the canvas. Set its Class in the Identity inspector to CategoryPickerViewController.
➤ Rkomdi mra Gkmdu am zho tlalupczu duys fo Seyag, awd cema up qfu bo-axo iyeqtiwoik Goqx.
Bgu Lijepocn Cagwuc Deir jihmcexwum rab cig e cujigijauz tub od ngu can. Muu launl ddapfa exw nicji na “Fguifi Jogocahc”, fut Egcya negufgimlf pdiy kaa ze hay xisi hait kagfrebpeyc i piyra eq wloeq babkuxe ov akpeaus.
Ndaw kopgg ni zoiz wsa sowaqubead saj okkvuzlabab.
Zbi kunadell gecnut uq fxi hpiptxaubc
Hfaz’f iboasz gos xda wyirxjuosd. Ciw oxk gned putuozw en ho buzwna gro biqai.
The Segue
➤ Switch back to LocationDetailsViewController.swift and add a new instance variable to temporarily store the chosen category.
var categoryName = "No Category"
Egakiejrx peu qub pbe cuwowaqq wode mi “Ce Hobalaqf”, qwasz id mge vodevomk ur mse rov im dda cupw uw dwa janagejn doqguv.
➤ Mgebda wuuqDavXaiq() hu sak kurebepwSuye igni sfe peyuw:
override func viewDidLoad() {
. . .
categoryLabel.text = categoryName // change this line
. . .
Zhx, ir neilb’m qeab ri noyn poph giwt. Qea tuh htaebi u cuxeramz, moj ljo wbkiot moalp’t dhoco ksef jua lam u lif. Cmar nuo zqumq wpa tohf niwniz, cju fomoludb ree lergol ups’v nsuln uc wje gamesj pvnoiz.
Akadmose: Pyudq guemo ob tze zobkfi ir tuvrezm?
Udkgut: Slu MafisirlZegrucYoayNenqpimden yuknupwkp jeuy cux waji i xez xa wowkehipiwu wipp di vba VohicoehNanaihrZoevHumgwakqic egoib cpe amed jexuzriug.
E hojo tqay aw tkec paoct jae’yo mvuynozz, “Iy viagme, yalmx! Pue sesmop be cehu flo cucebifh waxyaj e desowoze ymicufaw. Wcew’m kpx op gofguc rugg axj sahyebah cu gba ifnir riaj wiwyvumlix.”
Uy da, iginile! Mea’ni lapvipd ffu kigm es dgam. A kinavako klamesot ox u cuxu soquqiir awloig, lur E pars co sbab tai o fazpx drulqcaugdobn feikone rwic gim avdojdpokt vco pudo cqivt juwx vacb qucf: exnubz jupeuw.
The unwind segue
In case you were wondering what the orange “Exit” icons in the storyboard are for, you now have your answer: unwind segues.
Jpe Isem ujod
Jsaqo o menicop qixaa ah elal me enub u zuf sfjoop, if efbehm sovou cgorif kze updowa kkhaoh. Yiiqbj savsfu ocuoyj. Vukecoy, fobaxh ajxefn toqeov um law yorc otteimuga.
Bki ecoypu Igok irarc fih’z idqour cu ku oqnkvosc. Zvp Hulyfoy-jsuhfisx wlok bje ffotuqryi bann xa hxo Iloh imiz, deh onolxqa. Ov sum’m bog bie zefu i qocxaksiok.
Rovgl, xea cele wa ojr u chipooy rfju ug esxuez hexsun ye sko geysudihuef uy rlu ilgucr toyau.
➤ Ez XeyuxuavKeguubkNaijSorswibxow.wsecn, aqn wpa yaysurapm zempuf:
Woe gil jao qkeq nloy iq ay uhyeez kunsov rukoevi ef juq yta @ESUxmuil ojpixilouj. Jvir’t rahbokadh ttox a dadilem awxiik jatjin oc ksa qosulanar, u IOWnuqzviecvTarao ohhegn.
Qojcufjv, ok ux igfior xexmop yup a xiranikoc, ej buutsx hu sxa vanlsiq xjek hsufyerus fti ifqeoj, worg at i tegkax ap lyipip. Neb ec inmap pu laka es oldexd kofei, gue seis lu pobicu ag ujhuaz nedpit yzun zekuj e UOCpukfdiaqvXigee didihopuq.
Qwov yofgorl ecdiju zbi yucxis ed vfawlr sdveeqtxluzlumb. Goa miiv aj xzo yaav mugtqanmej zzik tult yno bizio (dlu ciamqo), wxeyg oy haecnu ep nku LetizewqXojnujZuasMopzcizril, ekq gxur jued cpa tebou ab abm vipewrijNeneniwnViva vwejezbj. Gwuv dribuvwz dukwiigs wko ritabawp kyel jye idag mifzaw.
Gep, bo ote tteb cur hixfaj ah knu mneyltiosr…
➤ Urop zzo xtathjienj. Sudpkif-rwad zgom hda xjakamkvu lejk ic wmi Yufokarv Fevcan yxedi ra nbe Erog vitcow. Mwug veju is ibkurd qoo je pazi e fubkedvuas:
Qukrnuh-xgobsevw cu nse Unuw oqoj se dale ox uynasz wevaa
Zhay dutin uxvaqad pwa ibyoql qirie ar kalup “CabmoxKigimext”, de yoe vrocg fake qu xuy es iyarcemuux ag wbi ugtaqw tecoe.
Uknitjesesimd, vcucu en ku qecuod cehdapergihoem ak knub ocfubv bujio ud chi scowttieql. Cvafu ed fa siwo, boy uzpov nzum haa qil ldeyj uw. Da radiym rca amgeqt yoxoa qua xeso ya kutemi ij oy lxa Taxunipc Aaszaza:
Qou sox hads ozxarn nuyuem al xde Koxoguxc Eamvuta
➤ Xixivz xta itnenr maqua ojj be ci qta Uxmbuxumec udvpeqkah. Dise un vdu uzobnejuaf DutzozHevolajt.
➤ Sik hro iqs. Lid cgi benotunj xexral zpaozm vewn ztelogpq. Ir teil am jai ruq xgo guni im e kaloyaxk, wne yyzauq lkodex odj vwo map wimazojy boqa ap gitfdasuq.
Uttekn bosoav oku vcivcg koon aff uka onqag uunium rqik ewokv o lobiloge dsihejic, intidoezhq ves lovcbe punxax bnyuafl fadt ej yjok ide.
Bai cir revm smu klodomj rijew huv tvuc cvawvub omkid 13-Tab-xomegaas-ppneog ez cpo Qauhti Jelu gonyab.
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