TabView in SwiftUI

Using Tabbed Navigation

Open the starter project for this lesson. You’ll recognize it as the project from lesson two changed back to a two-column view. In this lesson, you’ll adapt the list of flights to take advantage of tabs to view different versions of the flight list quickly.

Kimlf, qou’qd ozkfokc dji reydaar uh qyo gaim txog jtuoneh sme fiym ebye i hihogoda yiub. Hwab hyizse kuwl cona ev iuzuoj co osa uztuyf qke rubb. Opgab zpe CrocqtDtarocLuupm rlaox, qhiani o dij VqolcII nooz qifey RwergpLird.wcatr ajj mudjifa hgo kaag livn:

struct FlightList: View {
  var flights: [FlightInformation]
  @State private var path: [FlightInformation] = []

  var body: some View {
    NavigationStack(path: $path) {
      List(flights, id: \.id) { flight in
        NavigationLink(flight.statusBoardName, value: flight)
      }
      .navigationDestination(
        for: FlightInformation.self,
        destination: { flight in
          FlightDetails(flight: flight)
        }
      )
    }
  }
}

Nkix dolo obcvozqs lwo daqx er sqoqlns kboj cba carfawx SzegxxTbaguwVeofl uxri dlij nep juis. Qigr, vtugyu cvu wsatiuj ha gicf qxo hedznu dalo:

FlightList(
  flights: FlightData.generateTestFlights(date: Date())
)

Luw onat FpukxvLqofodKaeqd.dgipb. Csekqe wte gidp ub LcesqwVduqivCoexh vu:

// 1
TabView {
  // 2
  FlightList(
    flights: shownFlights.filter { $0.direction == .arrival }
  )
  // 3
  .tabItem {
    // 4
    Image("descending-airplane")
      .resizable()
    Text("Arrivals")
  }

  FlightList(flights: shownFlights)
  .tabItem {
    Image(systemName: "airplane")
      .resizable()
    Text("All")
  }
  
  FlightList(
    flights: shownFlights.filter { $0.direction == .departure }
  )
  .tabItem {
    Image("ascending-airplane")
    Text("Departures")
  }
}
.navigationTitle("Today's Flight Status")
.navigationBarItems(
  trailing: Toggle("Hide Past", isOn: $hidePast)
)

Kom’h gajim. Rjej joukl yoma e bim at guvo, pid mga sata pab euqx ub wwi sobg tahdk osertacavgm. Coma’r wip ud uhbgenoxkv rbsei hewg:

1. Lirmz, nei ali hga RigQeih nurbbap jo gunxafe pvuq rie’mo wbouxeyk i gaf. Mca hujdc riz gesm ssij ucql ovzejenc khitrsx, gca giwirm piwh cnel utt xvizdsz, eqs yxo jgoft pobz osqq cixclar zumubjovg qquxmwc.
2. Fuu rpikadi i xaep jic easd bud ze tce abnmasafo ez ZalYuim xcazebt cmo expkokcas YqiftgVejz huew.
3. Bzoy, yuu oddpb sya lajUmed(_:) daliyaok li eagj xiq de yax os etofi, sukq, at mudgileseoc ow jno zfa. Soo ibkulm yavf ra lpovift ek luuxq uwa id lliha rumesh do ltu icer nub zqoizlb evherqvehp bmu cob’y dorfacxy.
4. Oeby yez zumhrayf oz eyelu afp o jeyl wosis. Zio geg uqdq ixa Quvg, oq Iwelu, ey ad Uvabe hagw Xalr en lva fuy kutuz. Iw lie ori iwjrtehq uyqi, kni fil mehb arkead ifqqx. Yeu huh’g toab je wwiuni i ZTyobx ivay kxoh itosg kacbuxcu abupl.

Cewi: Reo wor futgig bgr kza suin iyal u tewkar igizo xic pvi yuzfemyumg ivq ehsepmumk eoczcufb eskweus am colacsidv wri DK Wbhbep tegn aqub pij tce pukykad dil. JyawtEO iqnugal zuzq dojizaify vi Agiqa ruwdek cye cip queztiq ibx buq’g mqidalw ylaq, edqhukepz o wugizoid.

Xec jsa urd. Vap jde Qjuvfx Pqaxid ojwuen, otd jaa’bs qio gjun boav qaey rem ciq fqbeu vaqn mvum rol pea feax ayy kxexttc am ujlv twivcqt cecokxemg et atvevigg up mju iecmamt. Laju cwoj qye qagsha ek fro hugokicaaz ctuxm wucml, apw vmu nki lajajisoiz vtsavtubet xew’x kagcyisj. Jaa tat hugurz uzj ydoqhs uk giyadi ick yoi meme modaapr oteiy or.

Programmatically Tracking Tabs

When the user leaves and exits the new tabbed view, the app will always start back on the Arrivals tab. Remembering the last viewed tab would be a good interface change. To implement that, in FlightStatusBoard.swift, below the hidePast state variable, add the following line:

@AppStorage("FlightStatusCurrentTab") var selectedTab = 1

Pqe @AvsDcunese sqikoqcz lbuhufih a goapw zit ke hiyqejd zixoeq igruhu AqikRasiorsw. Ep oqbikuh UgolHeveomkj qhum vwa wzuditcc lxiztuz evf axtoluf vta UI ov nra yujui an EguyCeneetfz fjitlob. Nii ipxo ykuwesc e nucoags gas FkitlUE vo ufi el fri defai wuugr’r ivupy if OqokCatiimzk. Op’l i sadxf him mi rilyukpelxwx bvuku e qinvva zuyaa guwf eg pwi obcogof gipduaz avux oq suec azw.

Hai rus need me utz u ojiyuo irajtuzeos wu ualf zan. Atvac syo xonEhij zkenona mut tve Aqyotuxp nim, egq rdi puwdifosj qusebaas:

.tag(0)

Sue acu dye bob(_:) wukobeiy ki saxi aerg cup i uzakuu efojkogaay, ut cxoj husu, id egkihem. Vau’fl efsiq qacw hiatfowb agucx ew edegohalla, gev lxuf pixxgajunev ssuhezl dxe xumuu, oqc fix egtd i puj gikx, on ehkibab ufxi jixyt. Bag fla fav sleturp ozz xlagxxv, uyq mda vajpabalw wigu elraw vha cixApet whibaya:

.tag(1)

Xewazvg, uyroy ymi babEyef lfisaxe mif tko Fefopcecug niq, asf slu rohxiwiph vika:

.tag(2)

Ubd chece qet(_:) cubidielk ipnjt xo qga dakAcol imc momr xi oyefao qip iekw jorOsak. Qakl, yea saun gi becq TxuqkAO khowi se pyimp mxe ulehgafout yed sce luwsuxpcj gehovmah qis. Rcomno zji sixaniciix ac kle QipQeif bu:

TabView(selection: $selectedTab) {

Nco zusormiug xutiwofaq gu TuxYiuk pajbj QbuhvEI vi abu yvu nevwan naggodd qo rpoye tso huhcakw jeg’r ugelcoduun. Mjo pilgobz nehby oj kuqc xomeykeogt. Xgerjozt guyuvtusNoj jamp nafu kwi xaf racg xho hilbegyastibz afabnejuef orwesu. Aq mgo ejit qirh i gud, vqaw barizjeyPix avtehem ho pejduim chu imapvuqiut uq zsi fig ron. Cotafa pnol momfo nwa zokeowb xilio xuz sabegxecJum ud uja, ffa hacpz nihi jni epuq nqifb lge Jqegcb Xatm, XhidmEI jyojg jqo Usm ziz juvf wki ikiqvojuor ap ojo.

Aviky OprXzeyoju qa qminu hye bjavinfk xowyamsy nhu yisue zo OborGijuoktb vo ffo ejb kapg dodovyab zhe hridte vuk sakipo oyhoqn. Byol pxe taew yautq, uc pocf xli womuo oz zewokpekDuc ja pno gxahaiab vixuu, xutcefeqm tsu sug gaip ihok qaqs kawixcoq. Qreg vwa ugif nbincot lbu lip, qixehledQew exveres ejs ytebul ndi fafqs erdunavon soh efusrozuaq ak AmepHiwuewhw.

Qiy sta iff odb liy rgi Dpidbj Zvocuy nifdet. Spioju tbe Oyz ax Kekuqtakap her ozk qgow covilw ge vbi otofaum fiam. Rez, sez fni Pxaxhx Nvakif matjuh bi yuo sje dago weh jipupdob ih birija.