I-Carousel

Icandelo lomboniso wesilayidi sokuhamba ngebhayisekile kwizinto-imifanekiso okanye izilayidi zombhalo-njengecarousel.

Ingaba isebenza kanjani

I-carousel ngumboniso wesilayidi sokuhamba ngebhayisikile ngoluhlu lomxholo, owakhiwe nge-CSS 3D ukuguqulwa kunye nentwana yeJavaScript. Isebenza ngothotho lwemifanekiso, isicatshulwa, okanye imarkup yesiko. Ikwabandakanya inkxaso yolawulo lwangaphambili / olulandelayo kunye nezalathi.

Kwiziphequluli apho i- Page Visibility API ixhaswa khona, i-carousel iya kuphepheka i-sliding xa iphepha lewebhu lingabonakali kumsebenzisi (njengaxa ithebhu ye-browser ingasebenzi, iwindow yesiphequluli iyancitshiswa, njl. njl.).

Nceda uqaphele ukuba iicarousels ezifakwe kwindlwane azixhaswanga, kwaye iicarousels azihambelani nemigangatho yokufikeleleka.

Okokugqibela, ukuba wakha iJavaScript yethu kwimvelaphi, ifunautil.js .

Umzekelo

Iicarousels azizenzeli ngokuzenzekelayo imilinganiselo yesilayidi. Ngaloo ndlela, kunokufuneka usebenzise izixhobo ezongezelelweyo okanye izitayile zesiko ukuze ulinganise ngokufanelekileyo umxholo. Ngelixa ii-carousels zixhasa ulawulo lwangaphambili/olulandelayo kunye nezalathi, azifuneki ngokucacileyo. Yongeza kwaye wenze ngokwezifiso njengoko ubona kufanelekile.

Iklasi .activekufuneka yongezwe kwesinye sezilayidi kungenjalo i-carousel ayiyi kubonakala. Kwakhona qiniseka ukuseta i-id eyodwa kulawulo .carouselolukhethwayo, ngakumbi ukuba usebenzisa iicarousel ezininzi kwiphepha elinye. Ulawulo kunye neempawu zesalathisi kufuneka data-targetzibenophawu (okanye hrefamakhonkco) ahambelana ne-id .carouselyesiqalelo.

Izilayidi kuphela

Nantsi i-carousel enezilayidi kuphela. Qaphela ubukho .d-blockkunye .w-100nemifanekiso ye-carousel ukunqanda ulungelelwaniso lomfanekiso olungagqibekanga lwesikhangeli.

<div id="carouselExampleSlidesOnly" class="carousel slide" data-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active">
        <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">
    </div>
  </div>
</div>

Ngolawulo

Ukongeza kulawulo lwangaphambili nolulandelayo:

<div id="carouselExampleControls" class="carousel slide" data-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">
    </div>
  </div>
  <a class="carousel-control-prev" href="#carouselExampleControls" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="carousel-control-next" href="#carouselExampleControls" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

Ngezalathi

Unokongeza izikhombisi kwi-carousel, ecaleni kolawulo, kwakhona.

<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
    <li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
    <li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
  </ol>
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">
    </div>
  </div>
  <a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

Neentloko-magama

Yongeza ii-captions kwizilayidi zakho ngokulula ngento .carousel-captionengaphakathi kuyo nayiphi na .carousel-item. Zinokufihlwa ngokulula kwizibuko zokujonga ezincinci, njengoko kubonisiwe ngezantsi, ngezixhobo zokubonisa ozikhethelayo . Sizifihla ekuqaleni .d-nonekwaye sizibuyisele kwizixhobo ezinobungakanani obuphakathi kunye .d-md-block.

<div class="carousel-item">
  <img src="..." alt="...">
  <div class="carousel-caption d-none d-md-block">
    <h5>...</h5>
    <p>...</p>
  </div>
</div>

I-Crossfade

Yongeza .carousel-fadekwi-carousel yakho ukuze uphilise izilayidi ngotshintsho olumnyama endaweni yesilayidi.

<div id="carouselExampleFade" class="carousel slide carousel-fade" data-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">
    </div>
  </div>
  <a class="carousel-control-prev" href="#carouselExampleFade" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="carousel-control-next" href="#carouselExampleFade" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

.carousel-itemIkhefu lomntu ngamnye

Yongeza data-interval=""kwi- .carousel-itema ukutshintsha ubungakanani bexesha lokulibazisa phakathi kokukhwela ibhayisekile ngokuzenzekelayo ukuya kwinto elandelayo.

<div id="carouselExampleInterval" class="carousel slide" data-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active" data-interval="10000">
      <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item" data-interval="2000">
      <img src="..." class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">
    </div>
  </div>
  <a class="carousel-control-prev" href="#carouselExampleInterval" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="carousel-control-next" href="#carouselExampleInterval" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

Ukusetyenziswa

Ngeempawu zedatha

Sebenzisa iimpawu zedatha ukulawula ngokulula indawo ye-carousel. data-slideyamkela amagama angundoqo prevokanye next, eguqula indawo yesilayidi ngokunxulumene nendawo yaso yangoku. Kungenjalo, sebenzisa data-slide-toukudlulisa isalathiso sesilayidi ekrwada kwicarousel data-slide-to="2", etshintsha indawo yesilayidi kwisalathiso esithile esiqala nge 0.

Uphawu data-ride="carousel"loyelelwano lusetyenziselwa ukuphawula i-carousel njengento ephilayo ukuqala kumthwalo wephepha. Ayinakusetyenziswa ngokudityaniswa ne (ingafunekiyo nengafunekiyo) iJavaScript ecacileyo yokuqaliswa kwecarousel enye.

NgeJavaScript

Fowunela i-carousel ngesandla nge:

$('.carousel').carousel()

Iinketho

Iinketho zinokugqithiswa ngeempawu zedatha okanye iJavaScript. Kuphawu lwedatha, faka igama lokhetho ku data-, njengakwi data-interval="".

Iindlela

.carousel(options)

Uqalisa i-carousel ngeendlela ozikhethelayo objectkwaye uqalise ukukhwela ibhayisekile kwizinto.

$('.carousel').carousel({
  interval: 2000
})

.carousel('cycle')

Ujikeleza izinto zecarousel ukusuka ekhohlo ukuya ekunene.

.carousel('pause')

Imisa ikhareshi ekukhweleni ibhayisekile kwizinto.

.carousel(number)

Ukujikelisa i-carousel kwisakhelo esithile (i-0 esekelwe, efana noluhlu). Ubuyela kumnxeba phambi kokuba into ekujoliswe kuyo iboniswe (okt phambi kokuba slid.bs.carouselisiganeko senzeke).

.carousel('prev')

Imijikelo ukuya kwinto yangaphambili. Ubuyela kumnxeba phambi kokuba kuboniswe into yangaphambili (okt phambi kokuba slid.bs.carouselisiganeko senzeke).

.carousel('next')

Biyela ukuya kwinto elandelayo. Ubuyela kumnxeba phambi kokuba kuboniswe into elandelayo (okt phambi kokuba slid.bs.carouselisiganeko senzeke).

.carousel('dispose')

Uyonakalisa i-carousel yento.

Iziganeko

Iklasi ye-carousel ye-Bootstrap iveza iminyhadala emibini yokuhuka ekusebenzeni kwecarousel. Zombini ezi ziganeko zineempawu ezongezelelweyo zilandelayo:

• direction: Isalathiso apho icarousel islayida (nokuba "left"okanye "right").
• relatedTarget: Isiqalelo seDOM esityibilikiswa kwindawo njengomba osebenzayo.
• from: Isalathiso sento yangoku
• to: Isalathiso senqaku elilandelayo

Yonke imisitho yecarousel ikhutshwa kwicarousel ngokwayo (okt kwi <div class="carousel">).

$('#myCarousel').on('slide.bs.carousel', function () {
  // do something…
})

Guqula ubude bexesha lotshintsho

Ubude bexesha benguqu bunokutshintshwa ngokuguquguquka kwe .carousel-item- $carousel-transitionSass phambi kokuhlanganiswa okanye izimbo zesiko ukuba usebenzisa i-CSS ehlanganisiweyo. Ukuba iinguqu ezininzi zisetyenziswa, qiniseka ukuba inguqu yenguqu ichazwa kuqala (umz. transition: transform 2s ease, opacity .5s ease-out).