vue項目中實現掃碼功能

項目地址：https://github.com/wkl007/vue-scan-demo.git
項目主要是做的一個掃碼的功能
核心代碼為

 <div class="scan">
    <div id="bcid">
      <div style="height:40%"></div>
      <p class="tip">...載入中...</p>
    </div>
    <footer>
      <button @click="startRecognize">1.創建控件</button>
      <button @click="startScan">2.開始掃描</button>
      <button @click="cancelScan">3.結束掃描</button>

      <button @click="closeScan">4.關閉控件</button>
    </footer>
  </div>
</template>

<script type='text/ecmascript-6'>
  let scan = null

  export default {
    data () {
      return {
        codeUrl: '',
      }
    },
    methods: {
      // 創建掃描控件
      startRecognize () {
        let that = this
        if (!window.plus) return
        scan = new plus.barcode.Barcode('bcid')
        scan.onmarked = onmarked

        function onmarked (type, result, file) {
          switch (type) {
            case plus.barcode.QR:
              type = 'QR'
              break
            case plus.barcode.EAN13:
              type = 'EAN13'
              break
            case plus.barcode.EAN8:
              type = 'EAN8'
              break
            default:
              type = '其它' + type
              break
          }
          result = result.replace(/\n/g, '')
          that.codeUrl = result
          alert(result)
          that.closeScan()

        }
      },
      // 開始掃描
      startScan () {
        if (!window.plus) return
        scan.start()
      },
      // 關閉掃描
      cancelScan () {
        if (!window.plus) return
        scan.cancel()
      },
      // 關閉條碼識別控件
      closeScan () {
        if (!window.plus) return
        scan.close()
      },
    }
  }
</script>
<style lang="less">
  .scan {
    height: 100%;

    #bcid {
      width: 100%;
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      bottom: 3rem;
      text-align: center;
      color: #fff;
      background: #ccc;
    }

    footer {
      position: absolute;
      left: 0;
      bottom: 1rem;
      height: 2rem;
      line-height: 2rem;
      z-index: 2;
    }
  }
</style>