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src/views/demo/comp/scroll/VirtualScroll.vue 1.72 KB
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<template>
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  <PageWrapper class="virtual-scroll-demo">
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    <Divider>基础滚动示例</Divider>
    <div class="virtual-scroll-demo-wrap">
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      <VScroll :itemHeight="41" :items="data" :height="300" :width="300">
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        <template #default="{ item }">
          <div class="virtual-scroll-demo__item">
            {{ item.title }}
          </div>
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        </template>
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      </VScroll>
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    </div>
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    <Divider>即使不可见,也预先加载50条数据,防止空白</Divider>
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    <div class="virtual-scroll-demo-wrap">
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      <VScroll :itemHeight="41" :items="data" :height="300" :width="300" :bench="50">
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        <template #default="{ item }">
          <div class="virtual-scroll-demo__item">
            {{ item.title }}
          </div>
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        </template>
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      </VScroll>
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    </div>
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  </PageWrapper>
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</template>
<script lang="ts">
  import { defineComponent } from 'vue';
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  import { VScroll } from '/@/components/VirtualScroll/index';
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  import { Divider } from 'ant-design-vue';
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  import { PageWrapper } from '/@/components/Page';
  const data: Recordable[] = (() => {
    const arr: Recordable[] = [];
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    for (let index = 1; index < 20000; index++) {
      arr.push({
        title: '列表项' + index,
      });
    }
    return arr;
  })();
  export default defineComponent({
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    components: { VScroll: VScroll, Divider, PageWrapper },
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    setup() {
      return { data: data };
    },
  });
</script>
<style lang="less" scoped>
  .virtual-scroll-demo {
    &-wrap {
      display: flex;
      margin: 0 30%;
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      background-color: @component-background;
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      justify-content: center;
    }
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    &__item {
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      height: 40px;
      padding: 0 20px;
      line-height: 40px;
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      border-bottom: 1px solid @border-color-base;
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    }
  }
</style>