图片的onload事件与better-scroll结合[ 当fastclick插件和better-scroll发生冲突导致点击事件失效时，可以给需要点击的元素加一个class="needsclick"] 

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>图片的onload事件</title>
    <style>
        .figure-wrapper { width: 400px; margin: 50px auto; font-size: 0; border: 1px solid red; background: #eee; text-align: center; }
    </style>
</head>
<body>
    <div class="figure-wrapper">
        <img onload="handleOnload()" width="100%"
            src="http://p.qpic.cn/music_cover/Biax4WTSMic4N0bgPWDwUCs9vvcm0PTev0Uz7IicxbKI9ajTkOUsubp5g/600?n=1" alt="">
    </div>
    
    
</body>
<script>
    function handleOnload() {
        // ...Do something
        var txt = "img onload";
        var divNode = document.createElement("div");
        divNode.style = "text-align: center";
        divNode.innerHTML = txt;
        document.body.append(divNode)
    }
</script>
</html>
warm-up
<template>
  <div ref="wrapper">
    <slot></slot>
  </div>
</template>
<script>
import BScroll from 'better-scroll'

export default {
  name: 'BaseScroll',
  props: {
    probeType: {
      type: Number,
      default: 1
    },
    click: {
      type: Boolean,
      default: true
    },
    listenScroll: {
      type: Boolean,
      default: false
    },
    data: {
      type: Array,
      default: null
    },
    pullup: {
      type: Boolean,
      default: false
    },
    beforeScroll: {
      type: Boolean,
      default: false
    },
    refreshDelay: {
      type: Number,
      default: 20
    }
  },
  watch: {
    data() {
      setTimeout(() => {
        this.refresh()
      }, 20)
    }
  },
  mounted() {
    setTimeout(() => {
      this._initScroll()
    }, 20)
    this.$nextTick(() => {
      if (!this.scroll) {
        this.scroll = new BScroll(this.$refs.wrapper, {})
        console.log(this.scroll)
      }
    })
  },
  methods: {
    _initScroll() {
      if (!this.$refs.wrapper) {
        return
      }
      this.scroll = new BScroll(this.$refs.wrapper, {
        probeType: this.probeType,
        click: this.click
      })
      if (this.listenScroll) {
        let me = this
        this.scroll.on('scroll', (pos) => {
          me.$emit('scroll', pos)
        })
      }
      /* 这个啥意思 */
      if (this.pullup) {
        this.scroll.on('crollEnd', () => {
          if (this.scroll.y <= this.scroll.maxScrollY + 50) {
            this.$emit('scrollToEnd')
          }
        })
      }
      if (this.beforeScroll) {
        this.scroll.on('beforeScrollStart', () => {
          this.$emit('beforeScroll')
        })
      }
    },
    disable() {
      this.scroll && this.scroll.disable()
    },
    enable() {
      this.scroll() && this.scroll.enable()
    },
    refresh() {
      this.scroll && this.scroll.refresh()
    },
    scrollTo() {
      this.scroll && this.scrollTo.apply(this.scroll, arguments)
    },
    scrollToElement() {
      this.scroll && this.scroll.scrollToElement.apply(this.scroll, arguments)
    }
  }
}
</script>
<style lang="stylus" scoped>

</style>
封装的better-scroll 
<template>
  <div class="recommend">
    <scroll ref="scroll" :data="discList" class="recommend-content">
      <div>
        <div v-if="sliderData.length" class="slider-wrapper">
          <slider>
            <div v-for="item in sliderData" :key="item.id">
              <a :href="item.linkUrl">
                <img @load="loadImage" :src="item.picUrl" class="needsclick">
              </a>
            </div>
          </slider>
        </div>
        <div class="recommend-list">
          <h1 class="list-title">热门歌单推荐</h1>
          <ul>
            <li v-for="item in discList" :key="item.dissid" class="item">
              <div class="icon">
                <img :src="item.imgurl" width="60" height="60">
              </div>
              <div class="text">
                <h2 class="name" v-html="item.creator.name"></h2>
                <p class="desc" v-html="item.dissname"></p>
              </div>
            </li>
          </ul>
        </div>
      </div>
    </scroll>
  </div>
</template>

<script>
import { getTopBanner, getDiscList } from 'api/recommend'
import { ERR_OK } from 'api/config'
import Slider from 'base/slider/Slider'
import Scroll from 'base/scroll/Scroll'
export default {
  name: 'Recommend',
  data() {
    return {
      sliderData: [],
      discList: []
    }
  },
  created() {
    setTimeout(() => {
      this._getTopBanner()
    }, 1000)
    this._getDiscList()
  },
  components: { Slider, Scroll },
  methods: {
    _getDiscList() {
      getDiscList().then((res) => {
        if (res.code === ERR_OK) {
          this.discList = res.data.list
        }
      })
    },
    _getTopBanner() {
      getTopBanner().then((res) => {
        if (res.code === ERR_OK) {
          this.sliderData = res.data.slider
        }
      })
    },
    loadImage() {
      if (!this.checkLoaded) {
        this.$refs.scroll.refresh()
        this.checkLoaded = true
      }
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '~common/stylus/variable'
  .recommend
    position fixed
    width 100%
    top 88px
    bottom 0
    .recommend-content
      height 100%
      overflow hidden
      .slider-wrapper
        position relative
        width 100%
        overflow hidden
      .recommend-list
        .list-title
          height 65px
          line-height 65px
          text-align center
          font-size $font-size-medium
          color $color-theme
        .item
          display flex
          box-sizing border-box
          align-items center
          padding 0 20px 20px 20px
        .icon
          flex 0 0 60px
          width 60px
          padding-right 20px
        .text
          display flex
          flex-direction column
          justify-content center
          flex 1
          line-height 20px
          overflow hidden
          font-size $font-size-medium
          .name
            margin-bottom 10px
            color: $color-text
          .desc
            color: $color-text-d
</style>
第一张图片加载完后刷新better-scroll

 

posted @ 2020-02-09 11:41  ladybug7  阅读(225)  评论(0)  编辑  收藏  举报