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Accepted
eccs0103
Asked:2024-12-20 01:56:37 +0800 CST2024-12-20 01:56:37 +0800 CST

滑动选择列表

  • 772

描述

我正在尝试制作一个选择性列表，当您单击其中的某个元素时，它应该平滑地移动到中心。我正在尝试使用溢出和滚动条来实现这一点。

const divScrollPicker = document.querySelector(`div#scroll-picker`);
divScrollPicker?.querySelectorAll(`button`).forEach((button, index) => {
    button.addEventListener(`click`, event => button.scrollIntoView({ behavior: `smooth`, block: `center` }));
});
body {
  position: fixed;
  inset: 0;
  max-width: 100vmin;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  grid-template-rows: auto;
  align-content: center;
}

div#scroll-picker {
  display: flex;
  flex-direction: column;
  max-height: 30px;
  overflow-y: visible;
  scroll-snap-type: y mandatory;
  scroll-snap-align: center;
  scroll-padding: 0;

  &>* {
    min-height: 100%;
    max-height: 100%;
  }
}

div#scroll-picker,
div#picker-container {
  border: 1px solid black;
}
<div id="scroll-picker">
  <button type="button" title>Button 1</button>
  <button type="button" title>Button 2</button>
  <button type="button" title>Button 3</button>
  <button type="button" title>Button 4</button>
  <button type="button" title>Button 5</button>
  <button type="button" title>Button 6</button>
  <button type="button" title>Button 7</button>
  <button type="button" title>Button 8</button>
</div>
<div id="picker-container"></div>

问题

  1. 为了让元素滑动，我必须启用滑块，即overflow: scroll或auto。
  2. 如果我启用滑块，则不会显示块之外的元素。
  3. 如果块外的元素未显示，我无法单击它们以使它们滑动到中心。

我仍然找不到摆脱这个恶性循环的方法。

问题

你有解决办法吗？
或者你能建议另一种方式吗？

html

1 个回答

  1. Best Answer

    解决方案

    使用填充的解决方法：

    const divScrollPicker = document.querySelector(`div#scroll-picker`);
divScrollPicker?.querySelectorAll(`button`).forEach((button) => {
    button.addEventListener(`click`, event => button.scrollIntoView({ behavior: `smooth`, block: `center` }));
});
    body {
  position: fixed;
  inset: 0;
  margin: 0;
  padding: 0;
  max-width: 100vmin;
  max-height: 100vh;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  grid-template-rows: auto;
  overflow: hidden;

  --color-highlight: hsl(200deg, 100%, 50%);
}

div#scroll-picker {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  scroll-snap-type: y mandatory;
  scroll-snap-align: center;
  scroll-padding: 0;
  background-color: var(--color-highlight);
  background-clip: content-box;

  --size-item: 1.2em;
  padding-block: calc((100vh - var(--size-item)) / 2);

  &>* {
    background-color: transparent;
    border: none;
    min-height: var(--size-item);
    max-height: var(--size-item);
  }
}

div#picker-container {
  outline-style: solid;
  outline-color: var(--color-highlight);
}
    <div id="scroll-picker">
  <button type="button" title>Button 1</button>
  <button type="button" title>Button 2</button>
  <button type="button" title>Button 3</button>
  <button type="button" title>Button 4</button>
  <button type="button" title>Button 5</button>
  <button type="button" title>Button 6</button>
  <button type="button" title>Button 7</button>
  <button type="button" title>Button 8</button>
</div>
<div id="picker-container"></div>

    • 0

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