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vue无限滚动实现教程

2026-01-22 02:17:17VUE

Vue无限滚动实现方法

使用第三方库vue-infinite-loading

安装vue-infinite-loading库：

npm install vue-infinite-loading --save

在组件中引入并使用：

import InfiniteLoading from 'vue-infinite-loading';

export default {
  components: {
    InfiniteLoading
  },
  data() {
    return {
      items: [],
      page: 1
    };
  },
  methods: {
    loadMore($state) {
      axios.get(`/api/items?page=${this.page}`)
        .then(({ data }) => {
          if (data.length) {
            this.items.push(...data);
            this.page++;
            $state.loaded();
          } else {
            $state.complete();
          }
        });
    }
  }
}

模板部分：

<template>
  <div>
    <div v-for="item in items" :key="item.id">
      {{ item.content }}
    </div>
    <infinite-loading @infinite="loadMore"></infinite-loading>
  </div>
</template>

原生实现无限滚动

监听滚动事件实现：

export default {
  data() {
    return {
      items: [],
      isLoading: false,
      page: 1,
      hasMore: true
    };
  },
  mounted() {
    window.addEventListener('scroll', this.handleScroll);
    this.loadItems();
  },
  beforeDestroy() {
    window.removeEventListener('scroll', this.handleScroll);
  },
  methods: {
    handleScroll() {
      const scrollY = window.scrollY;
      const visible = window.innerHeight;
      const pageHeight = document.documentElement.scrollHeight;
      const bottomOfPage = visible + scrollY >= pageHeight - 200;

      if (bottomOfPage && !this.isLoading && this.hasMore) {
        this.loadItems();
      }
    },
    loadItems() {
      this.isLoading = true;
      axios.get(`/api/items?page=${this.page}`)
        .then(({ data }) => {
          if (data.length) {
            this.items = [...this.items, ...data];
            this.page++;
          } else {
            this.hasMore = false;
          }
          this.isLoading = false;
        });
    }
  }
}

使用Intersection Observer API

现代浏览器支持的更高效方式：

export default {
  data() {
    return {
      items: [],
      observer: null,
      page: 1
    };
  },
  mounted() {
    this.observer = new IntersectionObserver((entries) => {
      if (entries[0].isIntersecting) {
        this.loadMore();
      }
    });

    this.observer.observe(this.$refs.loader);
    this.loadMore();
  },
  methods: {
    loadMore() {
      axios.get(`/api/items?page=${this.page}`)
        .then(({ data }) => {
          if (data.length) {
            this.items = [...this.items, ...data];
            this.page++;
          }
        });
    }
  }
}

模板中添加触发元素：

vue无限滚动实现教程