ebiz-h5/src/views/ebiz/generateImg/generateImg.vue

<template>
  <div>
    <div id="capture" ref="generateImg" style="height: 100vh; overflow: hidden">
      <img src="@/assets/images/list_img.jpg" alt="" />
      <div class="box">
        <div class="title">
          <p class="organ">{{ orderList.manageComName }}</p>
          <p class="name">{{ orderList.name }}</p>
        </div>
        <div class="pName">{{ orderList.productName }}</div>
        <div class="type">{{ orderList.outOrderType == 'accept' ? '承保规保' : '预收规保' }}</div>
        <div class="yuan">{{ orderList.prem }}<span>元</span></div>
        <div class="time">{{ orderList.outOrderType == 'accept' ? '承保时间：' : '预收时间：' }}{{ orderList.appntDate }}</div>
      </div>
    </div>
    <div class="flex justify-content-s bottom-btn border-color">
      <van-button square type="default" size="large" @click="shareImg" v-no-more-click="1000"> 分享 </van-button>
      <van-button square type="danger" size="large" @click="downLoadImagesFunc" v-no-more-click="1000"> 下载 </van-button>
    </div>
  </div>
</template>

<script>
import html2canvas from 'html2canvas'
export default {
  name: 'generateImg',
  data() {
    return {
      orderList: {}
    }
  },
  mounted() {
    this.getList()
  },
  methods: {
    getList() {
      this.orderList = JSON.parse(localStorage.getItem('orderList'))
    },
    // 将 Blob转base64
    blobToBase64(blob) {
      return new Promise((resolve, reject) => {
        const reader = new FileReader()
        reader.onloadend = () => resolve(reader.result)
        reader.onerror = reject
        reader.readAsDataURL(blob)
      })
    },
    // 分享
    shareImg() {
      // const element = document.getElementById('capture')
      // const canvas = await html2canvas(element)
      html2canvas(this.$refs.generateImg, {
        width: this.$refs.generateImg.offsetWidth,
        height: this.$refs.generateImg.offsetHeight,
        backgroundColor: '#fff',
        scale: 2,
        dpi: 300
      }).then((canvas) => {
        // 将 canvas 转换为 Blob
        canvas.toBlob((blob) => {
          this.blobToBase64(blob).then((base64String) => {
            let base64Manane = base64String.split(',')[1]
            EWebBridge.webCallAppInJs('bridge', {
              flag: 'share',
              extra: {
                shareType: '1',
                img: base64Manane
              }
            })
          })
        }, 'image/png')
      })
    },
    // 生成图片并下载
    domToImage(domElement, quality, callback) {
      html2canvas(domElement, {
        width: domElement.offsetWidth,
        height: domElement.offsetHeight,
        backgroundColor: '#fff',
        scale: 2,
        dpi: 300
      }).then((canvas) => {
        // 转换canvas为PNG图片并压缩
        canvas.toBlob(
          (blob) => {
            // const a = document.createElement('a')
            // a.href = URL.createObjectURL(blob)
            // a.download = '业绩贺报.png'
            // a.click()
            // let newimg = new Image()
            // newimg.src = URL.createObjectURL(blob)
            // newimg.onload = function () {
            //   URL.revokeObjectURL(newimg.src)
            //   callback(newimg)
            // }
            this.blobToBase64(blob).then((base64String) => {
              console.log(base64String, '==')
              EWebBridge.webCallAppInJs('download', {
                name: '业绩贺报.png',
                url: base64String
              })
                .then(() => {
                  console.log('下载完成')
                })
                .catch(() => {
                  this.$toast.fail('图片下载失败，请重新下载！')
                })
            })
          },
          'image/png'
          // quality
        )
      })
    },
    downLoadImagesFunc() {
      this.domToImage(this.$refs.generateImg)
    }
  }
}
</script>

<style lang="scss" scoped>
img {
  height: 100%;
  width: 100%;
  position: relative;
}
.box {
  position: absolute;
  width: 80%;
  height: 40%;
  top: 38%;
  left: 10%;
  .title {
    position: absolute;
    width: 100%;
    // left: 30%;
    top: 24%;
    font-weight: bold;
    p {
      display: flex;
      justify-content: center;
    }
    .organ {
      font-size: 12px;
      color: #b7170b;
    }
    .name {
      font-size: 17px;
      color: #b7170b;
    }
  }
  .pName {
    position: absolute;
    top: 44%;
    font-size: 15px;
    color: #efbc4f;
    width: 100%;
    display: flex;
    justify-content: center;
  }
  .type {
    font-size: 22px;
    color: #efbc4f;
    position: absolute;
    top: 53%;
    width: 100%;
    display: flex;
    justify-content: center;
  }
  .yuan {
    font-size: 30px;
    color: #efbc4f;
    position: absolute;
    top: 67%;
    width: 100%;
    text-align: center;
    display: inline-block;
    vertical-align: bottom;
    span {
      font-size: 14px;
      margin-left: 5px;
    }
  }
  .time {
    font-size: 14px;
    color: #efbc4f;
    position: absolute;
    top: 85%;
    width: 100%;
    display: flex;
    justify-content: center;
  }
}
.border-color {
  z-index: 9999;
  border: 2px solid;
  border-image: radial-gradient(circle, rgba(255, 233, 124, 1), rgba(222, 144, 34, 1)) 2 2;
}
/deep/ .van-button--danger {
  background: linear-gradient(to right, #f26e43, #ac0209) !important; /*设置按钮为渐变颜色*/
  border: none !important;
}
</style>