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vue实现下拉刷新

2026-02-24 06:06:13VUE

Vue 实现下拉刷新功能

使用第三方库（推荐）

安装 vue-pull-refresh 库：

npm install vue-pull-refresh --save

在组件中引入并使用：

<template>
  <pull-to-refresh
    :top-load-method="refreshData"
    @top-state-change="stateChange"
  >
    <!-- 你的列表内容 -->
    <div v-for="item in list" :key="item.id">{{ item.text }}</div>
  </pull-to-refresh>
</template>

<script>
import PullToRefresh from 'vue-pull-refresh'

export default {
  components: {
    PullToRefresh
  },
  data() {
    return {
      list: []
    }
  },
  methods: {
    refreshData(loaded) {
      // 模拟异步请求
      setTimeout(() => {
        // 更新数据
        this.list = [...newData]
        // 调用loaded表示加载完成
        loaded('done')
      }, 1000)
    },
    stateChange(state) {
      console.log('当前状态:', state)
    }
  }
}
</script>

原生实现方案

监听 touch 事件实现基础下拉刷新：

<template>
  <div 
    class="pull-refresh"
    @touchstart="handleTouchStart"
    @touchmove="handleTouchMove"
    @touchend="handleTouchEnd"
  >
    <div class="refresh-tip" :style="{ height: pullHeight + 'px' }">
      {{ refreshText }}
    </div>
    <slot></slot>
  </div>
</template>

<script>
export default {
  data() {
    return {
      startY: 0,
      currentY: 0,
      pullHeight: 0,
      isRefreshing: false,
      maxPullHeight: 100
    }
  },
  computed: {
    refreshText() {
      if (this.isRefreshing) return '加载中...'
      return this.pullHeight > 50 ? '释放刷新' : '下拉刷新'
    }
  },
  methods: {
    handleTouchStart(e) {
      this.startY = e.touches[0].pageY
    },
    handleTouchMove(e) {
      if (this.isRefreshing) return

      this.currentY = e.touches[0].pageY
      const distance = this.currentY - this.startY

      if (distance > 0 && window.scrollY <= 0) {
        e.preventDefault()
        this.pullHeight = Math.min(distance, this.maxPullHeight)
      }
    },
    handleTouchEnd() {
      if (this.isRefreshing) return

      if (this.pullHeight > 50) {
        this.isRefreshing = true
        this.$emit('refresh', () => {
          this.isRefreshing = false
          this.pullHeight = 0
        })
      } else {
        this.pullHeight = 0
      }
    }
  }
}
</script>

<style>
.pull-refresh {
  position: relative;
}
.refresh-tip {
  position: absolute;
  width: 100%;
  top: -100px;
  display: flex;
  justify-content: center;
  align-items: flex-end;
}
</style>

结合 better-scroll 实现

安装 better-scroll：

npm install better-scroll --save

实现代码：

<template>
  <div ref="wrapper" class="wrapper">
    <div class="pull-down-refresh">
      <div class="refresh-tip">
        {{ pullDownRefreshText }}
      </div>
      <slot></slot>
    </div>
  </div>
</template>

<script>
import BScroll from 'better-scroll'

export default {
  data() {
    return {
      scroll: null,
      pullDownRefreshText: '下拉刷新'
    }
  },
  mounted() {
    this.initScroll()
  },
  methods: {
    initScroll() {
      this.scroll = new BScroll(this.$refs.wrapper, {
        pullDownRefresh: {
          threshold: 50,
          stop: 40
        },
        click: true
      })

      this.scroll.on('pullingDown', () => {
        this.pullDownRefreshText = '正在刷新...'
        this.$emit('refresh', () => {
          this.finishPullDown()
        })
      })

      this.scroll.on('scroll', (pos) => {
        if (pos.y > 50) {
          this.pullDownRefreshText = '释放刷新'
        } else {
          this.pullDownRefreshText = '下拉刷新'
        }
      })
    },
    finishPullDown() {
      this.scroll.finishPullDown()
      this.scroll.refresh()
      this.pullDownRefreshText = '下拉刷新'
    }
  }
}
</script>