安装[code]npm install html5-qrcode[/code]代码[code]<template> <view class="container"> <button class="scan" @click="scanCode">打开相机扫码</button> <view class="reader-box" v-if="isScaning"> <view class="reader" id="reader"></view> </view> </view> </template> <script> import { Html5Qrcode } from 'html5-qrcode'; export default { data() { return { html5Qrcode: null, isScaning: false, } }, methods: { startScan() { this.isScaning = true; Html5Qrcode.getCameras().then(devices => { if (devices && devices.length) { this.html5Qrcode = new Html5Qrcode('reader'); this.html5Qrcode.start({ facingMode: 'environment', }, { fps: 24, qrbox: 280 }, (decodeText, decodeResult) => { console.log(decodeText) if (decodeText) { this.stopScan(); this.isScaning = false; } }, (err) => { console.log(err) }); } }); }, stopScan() { this.html5Qrcode.stop(); }, scanCode() { console.log('helo') this.startScan(); } } } </script> <style scoped> .container{ height:100%; } .reader-box { position: fixed; top: 0; bottom: 0; left: 0; right: 0; background-color: rgba(0, 0, 0, 0.5); } .reader { width: 540rpx; height: 540rpx; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); } </style>[/code]测试效果uniapp运行到欣赏器
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