侧边，锚点定位，对应位置移动到可视窗口顶部<a-anchor>

4641751420510_.pic.jpg
4651751420519_.pic.jpg

有导航的

image.png
  • :target-offset="79"如果顶部有定位在顶部，有透明度的导航栏banner图片上，需要设置偏移

按需引入antd的锚点

<template>
  <div class="main-container" ref="contentContainer" id="scrollContainer">
    <div class="anchor-box" id="anchorBox">
      <!--    :target-offset="79"如果顶部有定位在顶部，有透明度的导航栏banner图片上，需要设置偏移 -->
      <a-anchor
        :getContainer="getContainer"
        :activeKey="activeKey"
        @change="handleChange"
      >
        <a-anchor-link href="#section1" title="section1" />
        <a-anchor-link href="#section2" title="section2" />
        <a-anchor-link href="#section3" title="section3" />
        <a-anchor-link href="#section4" title="section4" />
        <a-anchor-link href="#section5" title="section5" />
      </a-anchor>
    </div>
    <!-- 顶部图宽度撑满 高度保证比例 -->
    <div
      style="
        width: 100%;
        background: green;
        position: relative;
        height: 298px;
        overflow: hidden;
      "
    ></div>
    <div style="margin-top: -50px; position: relative">
      <h2 id="section1"><a href="#section1" class="anchor"></a></h2>
      <div
        style="
          width: 80%;
          margin: 0 auto;
          height: 350px;
          display: flex;
          justify-content: space-between;
        "
      >
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
      </div>
    </div>
    <h2 style="margin-top: 0px" id="section2">
      <a href="#section2" class="anchor"></a>
    </h2>
    <h2 style="text-align: center">section2</h2>
    <div style="margin-top: 20px; position: relative">
      <div
        style="
          width: 80%;
          margin: 0 auto;
          height: 350px;
          display: flex;
          justify-content: space-between;
        "
      >
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
      </div>
    </div>
    <h2 id="section3"><a href="#section3" class="anchor"></a></h2>
    <h2 style="text-align: center">section3</h2>
    <div style="margin-top: 20px; position: relative">
      <div
        style="
          width: 80%;
          margin: 0 auto;
          height: 350px;
          display: flex;
          justify-content: space-between;
        "
      >
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
      </div>
    </div>

    <h2 id="section4"><a href="#section4" class="anchor"></a></h2>
    <h2 style="text-align: center">section4</h2>
    <div style="margin-top: 20px; position: relative">
      <div
        style="
          width: 80%;
          margin: 0 auto;
          height: 350px;
          display: flex;
          justify-content: space-between;
        "
      >
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
      </div>
    </div>
    <h2 id="section5"><a href="#section5" class="anchor"></a></h2>
    <h2 style="text-align: center">section5</h2>
    <div style="margin-top: 20px; position: relative">
      <div
        style="
          width: 80%;
          margin: 0 auto;
          height: 350px;
          display: flex;
          justify-content: space-between;
        "
      >
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
        <div
          style="
            border-radius: 20px;
            background: pink;
            width: 30%;
            height: 350px;
          "
        ></div>
      </div>
    </div>
  </div>
</template>

<script>
import "ant-design-vue/dist/antd.css";
import { Anchor } from "ant-design-vue";
export default {
  components: {
    "a-anchor": Anchor, // 在模板中使用 <a-button> 或 <AButton> 都可以。
    "a-anchor-link": Anchor.Link,
  },
  data() {
    return {
      activeKey: null,
    };
  },
  computed: {},
  mounted() {
    window.addEventListener("scroll", this.handleScroll, true);
  },
  beforeDestroy() {
    window.removeEventListener("scroll", this.handleScroll);
  },

  methods: {
    handleChange(newActiveKey) {
      this.activeKey = newActiveKey;
    },

    handleScroll(event) {
      if (event.target.scrollTop > 700) {
        var element = document.getElementById("anchorBox");
        element.classList.add("anchorFixed");
      } else {
        var element = document.getElementById("anchorBox");
        element.classList.remove("anchorFixed");
      }
    },
    getContainer() {
      return document.getElementById("scrollContainer");
    },
  },
  created() {},
};
</script>

<style scoped>
.anchor-box {
  box-shadow: 0px 2px 8px 0px rgba(0, 0, 0, 0.1);
  width: 200px;
  z-index: 999999;
  position: fixed;
  left: 20px;
  top: 412px;
  border-radius: 10px;
  overflow: hidden;
  transition: top 0.5s ease;
}
.anchorFixed {
  top: 120px !important;
}
.ant-affix {
  position: relative;
  border-radius: 20px;
  padding: 20px;
  width: 200px !important;
}
::v-deep .ant-anchor-wrapper {
  margin-left: -4px;
  padding-left: 4px;
  overflow: auto;
}
::v-deep .ant-anchor {
  margin: 30px 20px;
}
::v-deep .ant-anchor-wrapper::before {
  position: absolute;
  left: 16px;
  content: "";
  display: inline-block;
  width: 11px;
  height: 11px;
  border-radius: 11px;
  border: 3px solid #d7dce6;
  background-color: #fff;
  bottom: 20px;
}
::v-deep .ant-anchor-wrapper::after {
  position: absolute;
  left: 16px;
  content: "";
  display: inline-block;
  width: 11px;
  height: 11px;
  border-radius: 11px;
  border: 3px solid #d7dce6;
  background-color: #fff;
  top: 20px;
}
::v-deep .ant-anchor-link {
  line-height: 1.143;
  padding: 18px 0 18px 15px;
}
::v-deep .ant-anchor-link::before {
  position: absolute;
  left: -3px;
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 9px;
  margin-top: 5px;
  cursor: default;
  content: "";
  background-color: #d7dce6;
}

::v-deep .ant-anchor-link-active > .ant-anchor-link-title {
  color: #333;
  font-weight: 600;
}
::v-deep .ant-anchor-link-title {
  font-size: 18px;
}
::v-deep .ant-anchor-ink-ball {
  position: absolute;
  left: 50%;
  z-index: 99;
  width: 10px;
  height: 10px;
  background-color: #3c85f3;
  border: 0;
  border-radius: 0;
  transform: translateX(-50%);
}
::v-deep .ant-anchor-ink-ball::before {
  position: absolute;
  content: "";
  display: block;
  right: -10px;
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 5px solid #3c85f3;
  border-right: 5px solid transparent;
}
::v-deep .ant-anchor-ink-ball.visible {
  display: inline-block;
}
</style>

vue2按需引入antd

image.png

image.png
  • npm install ant-design-vue@1.7.8
  • npm install babel-plugin-import --save-dev
  • npm install less less-loader --save-dev
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