Subu

Bawo ni o ṣe n ṣiṣẹ

Ohun itanna JavaScript ti ṣubu ni a lo lati ṣafihan ati tọju akoonu. Awọn bọtini tabi awọn ìdákọró ni a lo bi awọn okunfa ti o ya aworan si awọn eroja kan pato ti o yipada. Pipalẹ ohun elo kan yoo ṣe igbesi aye heightlati iye lọwọlọwọ si 0. Fun bi CSS ṣe n kapa awọn ohun idanilaraya, o ko le lo paddinglori .collapseeroja kan. Dipo, lo kilaasi bi ohun elo murasilẹ ominira.

Apeere

Tẹ awọn bọtini ni isalẹ lati ṣafihan ati tọju nkan miiran nipasẹ awọn ayipada kilasi:

• .collapsehides akoonu
• .collapsingti lo lakoko awọn iyipada
• .collapse.showfihan akoonu

Ni gbogbogbo, a ṣeduro lilo bọtini kan pẹlu data-bs-targetabuda naa. Lakoko ti a ko ṣe iṣeduro lati oju wiwo atunmọ, o tun le lo ọna asopọ kan pẹlu hrefabuda (ati a role="button"). Ni awọn ọran mejeeji, o data-bs-toggle="collapse"nilo.

<p>
  <a class="btn btn-primary" data-bs-toggle="collapse" href="#collapseExample" role="button" aria-expanded="false" aria-controls="collapseExample">
    Link with href
  </a>
  <button class="btn btn-primary" type="button" data-bs-toggle="collapse" data-bs-target="#collapseExample" aria-expanded="false" aria-controls="collapseExample">
    Button with data-bs-target
  </button>
</p>
<div class="collapse" id="collapseExample">
  <div class="card card-body">
    Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.
  </div>
</div>

Awọn ibi-afẹde pupọ

A <button>tabi <a>le ṣe afihan ati tọju awọn eroja lọpọlọpọ nipa sisọ wọn pẹlu yiyan ninu rẹ hreftabi abuda data-bs-target. Pupọ <button>tabi <a>le ṣafihan ati tọju ohun elo kan ti ọkọọkan wọn ba tọka si pẹlu wọn hreftabi data-bs-targetikasi

<p>
  <a class="btn btn-primary" data-bs-toggle="collapse" href="#multiCollapseExample1" role="button" aria-expanded="false" aria-controls="multiCollapseExample1">Toggle first element</a>
  <button class="btn btn-primary" type="button" data-bs-toggle="collapse" data-bs-target="#multiCollapseExample2" aria-expanded="false" aria-controls="multiCollapseExample2">Toggle second element</button>
  <button class="btn btn-primary" type="button" data-bs-toggle="collapse" data-bs-target=".multi-collapse" aria-expanded="false" aria-controls="multiCollapseExample1 multiCollapseExample2">Toggle both elements</button>
</p>
<div class="row">
  <div class="col">
    <div class="collapse multi-collapse" id="multiCollapseExample1">
      <div class="card card-body">
        Some placeholder content for the first collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
      </div>
    </div>
  </div>
  <div class="col">
    <div class="collapse multi-collapse" id="multiCollapseExample2">
      <div class="card card-body">
        Some placeholder content for the second collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
      </div>
    </div>
  </div>
</div>

Wiwọle

Rii daju lati ṣafikun aria-expandedsi ipin iṣakoso. Ẹya-ara yii ṣe afihan ni gbangba ipo lọwọlọwọ ti ohun elo ikojọpọ ti a so mọ iṣakoso si awọn oluka iboju ati awọn imọ-ẹrọ iranlọwọ ti o jọra. Ti ohun elo ti o le kojọpọ ba ti wa ni pipade nipasẹ aiyipada, ẹda ti o wa lori ipin iṣakoso yẹ ki o ni iye kan ti aria-expanded="false". Ti o ba ti ṣeto eroja ikojọpọ lati ṣii nipasẹ aiyipada nipa lilo showkilasi, ṣeto aria-expanded="true"lori iṣakoso dipo. Ohun itanna naa yoo yi abuda yii pada laifọwọyi lori iṣakoso ti o da lori boya tabi kii ṣe nkan ti o le ṣubu tabi ko ti ṣii tabi tiipa (nipasẹ JavaScript, tabi nitori oluṣamulo nfa ohun elo iṣakoso miiran tun ti so mọ ipin kanna ti o le ṣubu). Ti eroja HTML ti iṣakoso kii ṣe bọtini (fun apẹẹrẹ, ohun <a>tabi <div>), abuda naarole="button"yẹ ki o wa ni afikun si awọn ano.

Ti ohun elo iṣakoso rẹ ba n fojusi ohun elo ikojọpọ kan ṣoṣo - ie data-bs-targetabuda naa n tọka si idoluyan - o yẹ ki o ṣafikun aria-controlsabuda naa si ipin iṣakoso, ti o ni nkan idti o le kojọpọ. Awọn oluka iboju ode oni ati awọn imọ-ẹrọ iranlọwọ ti o jọra ṣe lilo abuda yii lati pese awọn olumulo pẹlu awọn ọna abuja ni afikun lati lilö kiri taara si nkan ti o le kọlu funrararẹ.

Ṣe akiyesi pe imuse lọwọlọwọ Bootstrap ko bo ọpọlọpọ awọn ibaraenisepo keyboard iyan ti a sapejuwe ninu ilana Aṣẹ alakọwe WAI-ARIA 1.1 - iwọ yoo nilo lati ṣafikun iwọnyi funrararẹ pẹlu JavaScript aṣa.

Sass

Awọn oniyipada

$transition-collapse:         height .35s ease;

Awọn kilasi

Awọn kilasi iyipada ti o ṣubu ni a le rii ni scss/_transitions.scssbi a ṣe pin iwọnyi kọja awọn paati lọpọlọpọ (ruṣubu ati accordion).

.collapse {
  &:not(.show) {
    display: none;
  }
}

.collapsing {
  height: 0;
  overflow: hidden;
  @include transition($transition-collapse);
}

Lilo

Ohun itanna idapọmọra nlo awọn kilasi diẹ lati mu gbigbe gbigbe ti o wuwo naa:

• .collapsehides awọn akoonu
• .collapse.showfihan akoonu
• .collapsingti wa ni afikun nigbati awọn orilede bẹrẹ, ati kuro nigbati o ba pari

Awọn kilasi wọnyi le wa ni _transitions.scss.

Nipasẹ awọn abuda data

Kan ṣafikun data-bs-toggle="collapse"ati a data-bs-targetsi eroja lati fi iṣakoso laifọwọyi ti ọkan tabi diẹ ẹ sii awọn eroja ikojọpọ. Ẹya naa data-bs-targetgba oluyan CSS kan lati lo iṣubu si. Rii daju lati ṣafikun kilasi collapsenaa si nkan ti o le ṣubu. Ti o ba fẹ ki o ṣii aiyipada, ṣafikun afikun kilasi show.

Lati ṣafikun iṣakoso ẹgbẹ ti o dabi accordion si agbegbe ikojọpọ, ṣafikun ẹda data naa data-bs-parent="#selector". Tọkasi demo lati wo eyi ni iṣe.

Nipasẹ JavaScript

Mu ṣiṣẹ pẹlu ọwọ pẹlu:

var collapseElementList = [].slice.call(document.querySelectorAll('.collapse'))
var collapseList = collapseElementList.map(function (collapseEl) {
  return new bootstrap.Collapse(collapseEl)
})

Awọn aṣayan

Awọn aṣayan le ṣee kọja nipasẹ awọn abuda data tabi JavaScript. Fun awọn abuda data, fi orukọ aṣayan si data-bs-, bi ninu data-bs-parent="".

Awọn ọna

Mu akoonu rẹ ṣiṣẹ bi eroja ti o le kolu. Gba awọn aṣayan iyan object.

O le ṣẹda apẹẹrẹ ikọlu pẹlu onitumọ, fun apẹẹrẹ:

var myCollapse = document.getElementById('myCollapse')
var bsCollapse = new bootstrap.Collapse(myCollapse, {
  toggle: false
})

Awọn iṣẹlẹ

Kilasi Collapse Bootstrap ṣafihan awọn iṣẹlẹ diẹ fun sisọ sinu iṣẹ ṣiṣe iṣubu.

var myCollapsible = document.getElementById('myCollapsible')
myCollapsible.addEventListener('hidden.bs.collapse', function () {
  // do something...
})