手风琴无法正常工作（活动状态未应用于每个父实例）

Question

我有手风琴，点击它会增加高度，还会将图像更改为与该部分相关的图像（这是基于 data-id 完成的）。

以下是我要达到的要求：

每个手风琴组都包含在 .accordionRepeater__wrapper 中，对于 class 的每个实例，我正在尝试获得第一个 .accordionCard。具有打开状态。
在每个 accordionRepeater__wrapper 页面加载时只打开第一个 .accordionCard，因此默认情况下用户可以看到一些内容。
在每个 accordionRepeater__wrapper 中一次只能打开一个 .accordionCard（用户不能在 accordionRepeater__wrapper 中同时打开两个或更多 accordionCard）。

当前结果：

第一个 .accordionRepeater__wrapper 中的第一个 .accordionCard 在页面加载时具有 .accordionCard--open 的 class，但不显示其内容。
第二个 .accordionRepeater__wrapper 中 .accordionCard 的第一个实例没有 .accordionCard--open 的 class 并且不显示图像。只有当我点击它时，图像和内容才会显示。

在这里查看我的尝试：

$(function() {

  const card = $(".accordionCard");
  const expand_icon = $(".accordionCard__expand");


  // open first accordion in each .accordionRepeater__wrapper by default
  $(".accordionCard:first accordionCard__expand").addClass("expanded");
  $(".accordionCard:first").addClass("accordionCard--open");
  $(".accordionRepeater__image:first").addClass("d-block");


  card.click(function() {
    var hidden = $(this).children(".accordionCard__body--hidden");

    // only have one card open at a time
    expand_icon.removeClass("expanded");
    card.removeClass("accordionCard--open");

    /* CLOSE CARD */

    if ($(this).hasClass("accordionCard--open")) {
      TweenMax.to(hidden, 0.3, {
        height: 0,
        immediateRender: false,
        ease: Power1.easeOut
      });
      $(this).removeClass("accordionCard--open");
      $(this).find(expand_icon).removeClass("expanded");
    }

    /* OPEN CARD */
    else {
      TweenMax.set(hidden, {
        height: "auto"
      });
      TweenMax.from(hidden, 1, {
        height: 0,
        immediateRender: false,
        ease: Back.easeOut
      });
      $(this).addClass("accordionCard--open");
      $(this).find(expand_icon).addClass("expanded");

      // show correct image
      var id = $(this).attr('data-item');
      $(".accordionRepeater__image").removeClass("d-block");
      $(".accordionRepeater__image[data-item='" + id + "']").addClass("d-block");
    }

    /* END */

  });



});

:root {
  --green: #089F84;
  --white-2: #F7F7F7;
  --black-2: #2C3645;
}

.accordionRepeater {
  padding: 130px 0 156px 0;
}

.accordionRepeater__wrapper {
  padding-bottom: 140px;
}

.accordionRepeater__wrapper:last-child {
  padding-bottom: 0;
}

.accordionRepeater__row--even {
  flex-direction: row-reverse;
}

.accordionRepeater .accordionCard {
  margin: 13px 0;
  cursor: pointer;
  padding-left: 26px;
}

.accordionRepeater .accordionCard:hover .accordionCard__body-label {
  color: var(--green);
}

.accordionRepeater .accordionCard--open {
  background-color: var(--white-2);
  padding: 36px 48px 45px 26px;
  border-radius: 10px;
}

.accordionRepeater .accordionCard__expand {
  position: absolute;
}

.accordionRepeater .accordionCard__expand:before,
.accordionRepeater .accordionCard__expand:after {
  content: "";
  display: block;
  position: absolute;
  top: 50%;
  transform: translate(0px, 10px);
  right: 0;
  margin: 0 0 -8px;
  background-color: var(--green);
  border-radius: 5px;
}

.accordionRepeater .accordionCard__expand:before {
  right: 8px;
  width: 3px;
  height: 16px;
  transition: all 0.5s ease;
  margin-top: -7.5px;
}

.accordionRepeater .accordionCard__expand:after {
  right: 1px;
  width: 16px;
  height: 3px;
  margin-top: -1.5px;
}

.accordionRepeater .accordionCard__expand.expanded:before,
.accordionRepeater .accordionCard__expand.expanded:after {
  background-color: var(--black-2);
}

.accordionRepeater .accordionCard__expand.expanded:before {
  height: 0;
  margin-top: 0;
}

.accordionRepeater .accordionCard__body {
  margin-left: 20px;
}

.accordionRepeater .accordionCard__body--visible {
  width: 100%;
}

.accordionRepeater .accordionCard__body--hidden {
  overflow: hidden;
  height: 0;
}

.accordionRepeater .accordionCard__body-label {
  transition: all 0.5s ease;
  margin-left: 20px;
}

.accordionRepeater .accordionCard__body-copy {
  padding: 24px 0 17px 0;
}

.accordionRepeater .accordionCard__body-link {
  transition: none;
}

.accordionRepeater__image {
  display: none;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js" integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.9.1/gsap.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">

<div class="accordionRepeater">

  <div class="container">

    <!-----------
     -- FIRST SET
     -------------->

    <div class="accordionRepeater__wrapper">
      <div class="row justify-content-between align-items-center accordionRepeater__row accordionRepeater__row--odd">
        <div class="col-12 col-lg-6">
          <div class="accordionRepeater__text">

            <div class="accordionRepeater__text-accordion">

              <!-- CARD 1 -->

              <div class="accordionCard position-relative d-flex flex-column" data-item="1">
                <div class="accordionCard__body">
                  <div class="accordionCard__expand"></div>
                  <span class="accordionCard__body-label d-block">Lorum</span>
                </div>
                <div class="accordionCard__body--hidden">
                  <div class="accordionCard__body-copy">
                    <p>Lorum ipsum</p>
                  </div>
                </div>
              </div>

              <!-- CARD 2 -->

              <div class="accordionCard position-relative d-flex flex-column" data-item="2">
                <div class="accordionCard__body">
                  <div class="accordionCard__expand"></div>
                  <span class="accordionCard__body-label d-block">Lorum 2</span>
                </div>
                <div class="accordionCard__body--hidden">
                  <div class="accordionCard__body-copy">
                    <p>Lorum ipsum 2</p>
                  </div>
                </div>
              </div>

              <!-- CARD END -->

            </div>
          </div>
        </div>


        <div class="col-12 col-lg-6">
          <div class="accordionRepeater__graphic">
            <img class="accordionRepeater__image" src="https://picsum.photos/500" alt="placeholder-graphic" loading="lazy" style="max-width: 100%; height: auto;" data-item="1">
            <img class="accordionRepeater__image" src="https://picsum.photos/550" alt="placeholder-graphic" loading="lazy" style="max-width: 100%; height: auto;" data-item="2">
            <img class="accordionRepeater__image" src="https://picsum.photos/500" alt="placeholder-graphic" loading="lazy" style="max-width: 100%; height: auto;" data-item="3">
          </div>
        </div>

      </div>
    </div>

    <!-----------
    -- FIRST SET END
    -------------->

    <!-----------
     -- SECOND SET
     -------------->

    <div class="accordionRepeater__wrapper">
      <div class="row justify-content-between align-items-center accordionRepeater__row accordionRepeater__row--even">
        <div class="col-12 col-lg-6">
          <div class="accordionRepeater__text">

            <div class="accordionRepeater__text-accordion">

              <!-- CARD 1 -->

              <div class="accordionCard position-relative d-flex flex-column" data-item="1">
                <div class="accordionCard__body">
                  <div class="accordionCard__expand"></div>
                  <span class="accordionCard__body-label d-block">Lorum</span>
                </div>
                <div class="accordionCard__body--hidden">
                  <div class="accordionCard__body-copy">
                    <p>Lorum ipsum</p>
                  </div>
                </div>
              </div>

              <!-- CARD END -->

            </div>
          </div>
        </div>


        <div class="col-12 col-lg-6">
          <div class="accordionRepeater__graphic">
            <img class="accordionRepeater__image" src="https://picsum.photos/500" alt="placeholder-graphic" loading="lazy" style="max-width: 100%; height: auto;" data-item="1">
          </div>
        </div>

      </div>
    </div>

    <!-----------
    -- SECOND SET END
    -------------->

  </div>
</div>

Answer 1

更改此行：

if ($(this).hasClass("accordionCard--open")) {

收件人：

if ($(this).hasClass("accordionCard--open") == true) {

否则，它并没有真正做任何事情。希望这就是您所需要的！

Answer 2

你一开始没有展开手风琴。您只在点击时执行此操作。
该方法还需要在设置级别处理扩展和关闭。而且不是全球性的。

可以这样做：

$(function() {
  const card = $('.accordionCard');
  const expand_icon = $('.accordionCard__expand');

  $('.accordionCard:first-child').each((i, a) => toggleAc(a));

  card.click(function() {
    toggleAc(this);
  });

  // expand/close given accordions
  function toggleAc(acdn) {
    var hidden = $(acdn).children('.accordionCard__body--hidden');
    const isOpen = $(acdn).hasClass('accordionCard--open');

    /* CLOSE CARD */
    if (isOpen) {
      return;  // this ensures that at least one will remain open all the time
      /*TweenMax.to(hidden, 0.3, {
        height: 0,
        immediateRender: false,
        ease: Power1.easeOut,
      });
      $(acdn).removeClass('accordionCard--open');
      $(acdn).find(expand_icon).removeClass('expanded');
      */
      
    } else {
      // close previous card in the same set
      const parent = $(acdn).parent();
      const expandedCard = parent.find('.accordionCard--open');
      const expandedIcon = parent.find('.expanded');
      const expandedCardHidden = expandedCard.children('.accordionCard__body--hidden');
      TweenMax.to(expandedCardHidden, 0.3, {
        height: 0,
        immediateRender: false,
        ease: Power1.easeOut,
      });
      expandedIcon.removeClass('expanded');
      expandedCard.removeClass('accordionCard--open');

      /* OPEN CARD */
      TweenMax.set(hidden, {
        height: 'auto',
      });
      TweenMax.from(hidden, 1, {
        height: 0,
        immediateRender: false,
        ease: Back.easeOut,
      });
      $(acdn).addClass('accordionCard--open');
      $(acdn).find(expand_icon).addClass('expanded');

      // show correct image
      var id = $(acdn).attr('data-item');
      const grandParent = parent.parent().parent().parent();
      grandParent.find('.accordionRepeater__image').removeClass('d-block');
      grandParent
        .find(".accordionRepeater__image[data-item='" + id + "']")
        .addClass('d-block');
    }

    /* END */
  }
});

:root {
  --green: #089f84;
  --white-2: #f7f7f7;
  --black-2: #2c3645;
}

.accordionRepeater {
  padding: 130px 0 156px 0;
}

.accordionRepeater__wrapper {
  padding-bottom: 140px;
}

.accordionRepeater__wrapper:last-child {
  padding-bottom: 0;
}

.accordionRepeater__row--even {
  flex-direction: row-reverse;
}

.accordionRepeater .accordionCard {
  margin: 13px 0;
  cursor: pointer;
  padding-left: 26px;
}

.accordionRepeater .accordionCard:hover .accordionCard__body-label {
  color: var(--green);
}

.accordionRepeater .accordionCard--open {
  background-color: var(--white-2);
  padding: 36px 48px 45px 26px;
  border-radius: 10px;
}

.accordionRepeater .accordionCard__expand {
  position: absolute;
}

.accordionRepeater .accordionCard__expand:before,
.accordionRepeater .accordionCard__expand:after {
  content: '';
  display: block;
  position: absolute;
  top: 50%;
  transform: translate(0px, 10px);
  right: 0;
  margin: 0 0 -8px;
  background-color: var(--green);
  border-radius: 5px;
}

.accordionRepeater .accordionCard__expand:before {
  right: 8px;
  width: 3px;
  height: 16px;
  transition: all 0.5s ease;
  margin-top: -7.5px;
}

.accordionRepeater .accordionCard__expand:after {
  right: 1px;
  width: 16px;
  height: 3px;
  margin-top: -1.5px;
}

.accordionRepeater .accordionCard__expand.expanded:before,
.accordionRepeater .accordionCard__expand.expanded:after {
  background-color: var(--black-2);
}

.accordionRepeater .accordionCard__expand.expanded:before {
  height: 0;
  margin-top: 0;
}

.accordionRepeater .accordionCard__body {
  margin-left: 20px;
}

.accordionRepeater .accordionCard__body--visible {
  width: 100%;
}

.accordionRepeater .accordionCard__body--hidden {
  overflow: hidden;
  height: 0;
}

.accordionRepeater .accordionCard__body-label {
  transition: all 0.5s ease;
  margin-left: 20px;
}

.accordionRepeater .accordionCard__body-copy {
  padding: 24px 0 17px 0;
}

.accordionRepeater .accordionCard__body-link {
  transition: none;
}

.accordionRepeater__image {
  display: none;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js" integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.9.1/gsap.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous" />

<div class="accordionRepeater">
  <div class="container">
    <!-----------
     -- FIRST SET
     -------------->

    <div class="accordionRepeater__wrapper">
      <div class="row justify-content-between align-items-center accordionRepeater__row accordionRepeater__row--odd">
        <div class="col-12 col-lg-6">
          <div class="accordionRepeater__text">
            <div class="accordionRepeater__text-accordion">
              <!-- CARD 1 -->

              <div class="accordionCard position-relative d-flex flex-column" data-item="1">
                <div class="accordionCard__body">
                  <div class="accordionCard__expand"></div>
                  <span class="accordionCard__body-label d-block">Lorum</span>
                </div>
                <div class="accordionCard__body--hidden">
                  <div class="accordionCard__body-copy">
                    <p>Lorum ipsum</p>
                  </div>
                </div>
              </div>

              <!-- CARD 2 -->

              <div class="accordionCard position-relative d-flex flex-column" data-item="2">
                <div class="accordionCard__body">
                  <div class="accordionCard__expand"></div>
                  <span class="accordionCard__body-label d-block">Lorum 2</span>
                </div>
                <div class="accordionCard__body--hidden">
                  <div class="accordionCard__body-copy">
                    <p>Lorum ipsum 2</p>
                  </div>
                </div>
              </div>

              <!-- CARD END -->
            </div>
          </div>
        </div>

        <div class="col-12 col-lg-6">
          <div class="accordionRepeater__graphic">
            <img class="accordionRepeater__image" src="https://picsum.photos/500" alt="placeholder-graphic" loading="lazy" style="max-width: 100%; height: auto;" data-item="1" />
            <img class="accordionRepeater__image" src="https://picsum.photos/550" alt="placeholder-graphic" loading="lazy" style="max-width: 100%; height: auto;" data-item="2" />
            <img class="accordionRepeater__image" src="https://picsum.photos/500" alt="placeholder-graphic" loading="lazy" style="max-width: 100%; height: auto;" data-item="3" />
          </div>
        </div>
      </div>
    </div>

    <!-----------
    -- FIRST SET END
    -------------->

    <!-----------
     -- SECOND SET
     -------------->

    <div class="accordionRepeater__wrapper">
      <div class="row justify-content-between align-items-center accordionRepeater__row accordionRepeater__row--even">
        <div class="col-12 col-lg-6">
          <div class="accordionRepeater__text">
            <div class="accordionRepeater__text-accordion">
              <!-- CARD 1 -->

              <div class="accordionCard position-relative d-flex flex-column" data-item="1">
                <div class="accordionCard__body">
                  <div class="accordionCard__expand"></div>
                  <span class="accordionCard__body-label d-block">Lorum</span>
                </div>
                <div class="accordionCard__body--hidden">
                  <div class="accordionCard__body-copy">
                    <p>Lorum ipsum</p>
                  </div>
                </div>
              </div>

              <!-- CARD END -->
            </div>
          </div>
        </div>

        <div class="col-12 col-lg-6">
          <div class="accordionRepeater__graphic">
            <img class="accordionRepeater__image" src="https://picsum.photos/500" alt="placeholder-graphic" loading="lazy" style="max-width: 100%; height: auto;" data-item="1" />
          </div>
        </div>
      </div>
    </div>

    <!-----------
    -- SECOND SET END
    -------------->
  </div>
</div>

手风琴无法正常工作（活动状态未应用于每个父实例）

Accordion not working correctly (active states not being applied for each parent instance)

html

javascript

jquery

gsap