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2.开发基于zxing/library的既支持扫二维码也支持扫条码的扫码组件 3.因为自研zxing组件小米手机中的企业微信只能获取到前置摄像头,实现按需加载功能,企业微信环境调用企业微信扫一扫,其它环境调用自研zxing扫码组件lwx_v8
8 changed files with 965 additions and 480 deletions
@ -1,212 +1,184 @@ |
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<template> |
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<div class="scanCode"> |
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<div class="container"> |
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<div class="qrcode"> |
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<div style="height: 100vh"> |
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<qrcode-stream @detect="onDecode" @error="onInit" style="height: 100%"> |
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<div> |
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<div class="qr-scanner"> |
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<!--顶部左边的返回箭头--> |
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<div> |
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<!-- <van-icon class="scanImg" @click="onClickLeft" name="arrow-left" /> --> |
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<!-- <el-button type="primary" @click="onClickLeft" ></el-button> --> |
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<el-icon @click="onClickLeft" style="margin:15px;width: 20px;height: 20px;"><Close style="width: 20px;height: 20px;" /></el-icon> |
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|
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|
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<div class="btn"> |
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<div class="left-back" style="float: left;"> |
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|
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<el-icon @click="clickBack" style="border: white solid 0px;"> |
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<Back /> |
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</el-icon> |
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</div> |
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<!-- <div class="right-file"> |
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|
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<van-uploader |
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v-model="fileList" |
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:preview-image="false" |
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:after-read="dealSelectFiles" |
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> |
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<el-icon><Picture /></el-icon> |
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</van-uploader> |
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</div> --> |
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</div> |
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|
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|
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<div id="reader"></div> |
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<!--中间的扫码框--> |
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<div class="box"> |
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<div class="line"></div> |
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<div class="angle"></div> |
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</div> |
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<div class="txt"> |
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将二维码/条码放入框内，即自动扫描 |
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</div> |
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<!--<div class="btn"> |
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<div class="left-back"> |
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|
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<el-icon @click="clickBack"> |
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<Back /> |
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</el-icon> |
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</div> |
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<div class="right-file"> |
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|
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<van-uploader |
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v-model="fileList" |
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:preview-image="false" |
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:after-read="dealSelectFiles" |
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> |
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<el-icon><Picture /></el-icon> |
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</van-uploader> |
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</div> |
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</div> --> |
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</qrcode-stream> |
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</div> |
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</template> |
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|
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<script setup> |
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import { reactive } from "vue"; |
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import { defineComponent, toRefs, onMounted, onUnmounted } from "vue"; |
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import { Html5Qrcode } from "html5-qrcode"; |
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import { useRouter } from 'vue-router' |
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|
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const router = useRouter() |
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|
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const state = reactive({ |
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html5QrCode: null, |
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fileList: [], |
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}); |
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const start = () => { |
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state.html5QrCode |
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.start( |
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{ facingMode: "environment" }, |
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{ |
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fps: 5, |
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qrbox: { width: 300, height: 210 }, |
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aspectRatio: 1.7,// |
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}, |
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(decodedText, decodedResult) => { |
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window.location.href = decodedText; |
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if (state.html5QrCode&&state.html5QrCode.isScanning) { |
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stop(); |
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} |
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console.log("decodedText", decodedText); |
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console.log("decodedResult", decodedResult); |
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} |
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) |
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.catch((err) => { |
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console.log("扫码错误信息", err); |
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let message = ""; // 错误信息处理仅供参考，具体描述自定义 |
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if (typeof err == "string") { |
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message = "二维码识别失败！"; |
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alert(message) |
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} else { |
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if (err.name == "NotAllowedError") { |
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message = "您需要授予相机访问权限！"; |
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} |
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if (err.name == "NotFoundError") { |
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message = "这个设备上没有摄像头！"; |
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} |
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if (err.name == "NotSupportedError") { |
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message = |
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"摄像头访问只支持在安全的上下文中，如https或localhost！"; |
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} |
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if (err.name == "NotReadableError") { |
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message = "相机被占用！"; |
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} |
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if (err.name == "OverconstrainedError") { |
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message = "安装摄像头不合适！"; |
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} |
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if (err.name == "StreamApiNotSupportedError") { |
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message = "此浏览器不支持流API！"; |
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} |
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alert(message) |
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} |
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}); |
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}; |
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const clickBack = () => { |
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//console.log(1) |
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if (state.html5QrCode&&state.html5QrCode.isScanning) { |
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stop(); |
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} |
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router.back(); |
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} |
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const getCameras = () => { |
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Html5Qrcode.getCameras() |
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.then((devices) => { |
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if (devices && devices.length) { |
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state.html5QrCode = new Html5Qrcode("reader"); |
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start(); |
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} |
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}) |
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.catch((err) => { |
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console.log(err) |
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alert("摄像头无访问权限！"); |
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}); |
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}; |
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const stop = () => { |
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state.html5QrCode |
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.stop() |
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.then((ignore) => { |
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console.log("停止扫码", ignore); |
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}) |
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.catch((err) => { |
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console.log(err); |
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alert("停止扫码失败"); |
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}); |
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}; |
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const dealSelectFiles = () => { |
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<script setup lang="ts"> |
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import {QrcodeStream} from "vue-qrcode-reader"; |
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import {ref} from "vue"; |
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|
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|
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// 定义变量 |
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const dataList = ref('') |
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const result = ref(true) |
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const error = ref('') |
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|
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|
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// 扫码后返回的结果 |
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const onDecode = (res: any) => { |
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dataList.value = res |
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result.value = false |
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//console.log('你好',dataList.value) |
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//alert(dataList.value) |
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//showSuccessToast('扫描成功')--------------------------------------- |
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window.location.href = dataList.value[0].rawValue; |
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// 调用后台接口存入数据库 |
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// 数据存入数据库后跳转页面 |
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} |
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// 初始化摄像头 |
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const onInit = async (promise: any) => { |
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console.log('初始化摄像头',promise) |
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try { |
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window.qrcode.callback = (result) => { |
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alert("成功了，结果是：" + result); |
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}; // get select files. |
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let file = state.fileList[0].file; |
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var reader = new FileReader(); |
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reader.onload = (function () { |
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return function (e) { |
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window.qrcode.decode(e.target.result); |
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}; |
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})(file); |
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reader.readAsDataURL(file); |
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} catch (error) { |
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alert("图片识别失败！"); |
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await promise |
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}catch (err: any) { |
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if (err.name === 'NotAllowedError') { |
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error.value = 'ERROR: 您需要授予相机访问权限'; |
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} else if (err.name === 'NotFoundError') { |
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error.value = 'ERROR: 这个设备上没有摄像头'; |
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} else if (err.name === 'NotSupportedError') { |
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error.value = 'ERROR: 所需的安全上下文(HTTPS、本地主机)'; |
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} else if (err.name === 'NotReadableError') { |
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error.value = 'ERROR: 相机被占用'; |
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} else if (err.name === 'OverconstrainedError') { |
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error.value = 'ERROR: 安装摄像头不合适'; |
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} else if (err.name === 'StreamApiNotSupportedError') { |
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error.value = 'ERROR: 此浏览器不支持流API'; |
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} |
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}; |
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onMounted(() => { |
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getCameras(); |
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}); |
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onUnmounted(() => { |
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//扫描设备是否在运行 |
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if (state.html5QrCode&&state.html5QrCode.isScanning) { |
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stop(); |
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} |
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}); |
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|
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|
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|
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</script> |
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|
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<style lang="scss" scoped> |
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.scanCode { |
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height: 100vh; |
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display: flex; |
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flex-direction: column; |
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background: rgba(0, 0, 0); |
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} |
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.container { |
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// 返回上一页箭头 |
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const onClickLeft = () => { |
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history.back(); |
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} |
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</script> |
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<style scoped> |
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:deep(i.van-badge__wrapper.van-icon.van-icon-arrow-left.scanImg){ |
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font-size: 40px; |
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color: white; |
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} |
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.scanImg{ |
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margin-top: 30px; |
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margin-left: 10px; |
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} |
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.error { |
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font-weight: bold; |
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color: red; |
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} |
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.cameraMessage { |
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width: 100%; |
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height: 60px; |
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} |
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.qr-scanner { |
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background-size: 3rem 3rem; |
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background-position: -1rem -1rem; |
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width: 100%; |
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/* height: 100%; */ |
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height: 100vh; |
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/* height: 288px; */ |
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position: relative; |
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background-color: #1110; |
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} |
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.qr-scanner .box { |
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width: 213px; |
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height: 213px; |
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position: absolute; |
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left: 50%; |
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top: 40%; |
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transform: translate(-50%, -50%); |
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overflow: hidden; |
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border: 1px solid #3aa5ff; |
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} |
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.qr-scanner .txt { |
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width: 100%; |
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/* border: red solid 7px; */ |
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} |
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.qrcode { |
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height: 90%; |
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/* width: 100%;*/ |
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/* border: white solid 7px; */ |
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} |
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#reader { |
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height: 35px; |
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line-height: 35px; |
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font-size: 14px; |
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text-align: center; |
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/* color: #f9f9f9; */ |
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margin: 0 auto; |
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position: absolute; |
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top: 60%; |
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left: 0; |
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} |
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.qr-scanner .myQrcode { |
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text-align: center; |
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color: #3aa5ff; |
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} |
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.qr-scanner .line { |
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height: calc(100% - 2px); |
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width: 100%; |
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background: linear-gradient(180deg, rgba(0, 255, 51, 0) 43%, #3aa5ff 211%); |
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border-bottom: 1px solid #3aa5ff; |
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transform: translateY(-100%); |
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animation: radar-beam 2s infinite alternate; |
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animation-timing-function: cubic-bezier(0.53, 0, 0.43, 0.99); |
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animation-delay: 1.4s; |
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} |
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|
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.qr-scanner .box:after, |
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.qr-scanner .box:before, |
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.qr-scanner .angle:after, |
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.qr-scanner .angle:before { |
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content: ''; |
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display: block; |
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|
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height: 90vh; |
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/* top: 50%; |
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position: absolute; |
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width: 3vw; |
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height: 3vw; |
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} |
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|
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.qr-scanner .box:after, |
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.qr-scanner .box:before { |
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top: 0; |
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border-top-color: #3aa5ff; |
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} |
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|
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.qr-scanner .angle:after, |
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.qr-scanner .angle:before { |
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bottom: 0; |
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border-bottom-color: #3aa5ff; |
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} |
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|
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.qr-scanner .box:before, |
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.qr-scanner .angle:before { |
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left: 0; |
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transform: translateY(-50%); */ |
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/* border: yellow solid 5px; */ |
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border-left-color: #3aa5ff; |
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} |
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|
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.qr-scanner .box:after, |
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.qr-scanner .angle:after { |
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right: 0; |
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border-right-color: #3aa5ff; |
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} |
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|
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@keyframes radar-beam { |
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0% { |
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transform: translateY(-100%); |
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} |
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|
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.btn { |
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flex: 1; |
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padding-top: 2vw; |
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display: flex; |
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padding-left: 3vw; |
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color: #fff; |
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font-size: 6vw; |
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align-items: flex-start; |
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/* border: green solid 7px; */ |
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100% { |
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transform: translateY(0); |
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} |
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</style> |
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|
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} |
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</style> |
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|
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@ -0,0 +1,195 @@ |
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<template> |
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<div style="height: 100vh"> |
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<qrcode-stream @detect="onDecode" @error="onInit" style="height: 100%"> |
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<div> |
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<div class="qr-scanner"> |
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<!--顶部左边的返回箭头--> |
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<div> |
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<el-icon @click="onClickLeft" style="margin:15px;width: 20px;height: 20px;"> |
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<Close style="width: 20px;height: 20px;" /> |
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</el-icon> |
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</div> |
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<!--中间的扫码框--> |
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<div class="box"> |
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<div class="line"></div> |
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<div class="angle"></div> |
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</div> |
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<div class="txt"> |
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将二维码/条码放入框内，即自动扫描 |
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</div> |
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</div> |
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</div> |
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</qrcode-stream> |
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</div> |
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</template> |
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<script setup lang="ts"> |
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import { QrcodeStream } from "vue-qrcode-reader"; |
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import { ref } from "vue"; |
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|
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const emits = defineEmits<{ |
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(e: 'update-qrScaning', value: any): void |
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(e: 'update-scanResult', value: any): void |
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}>() |
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// 定义变量 |
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const dataList = ref('') |
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const result = ref(true) |
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const error = ref('') |
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|
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|
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// 扫码后返回的结果 |
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const onDecode = (res: any) => { |
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dataList.value = res |
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result.value = false |
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//console.log('你好',dataList.value) |
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//alert(dataList.value) |
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//showSuccessToast('扫描成功')--------------------------------------- |
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//console.log('扫描成功'+dataList.value[0].rawValue) |
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emits('update-scanResult', dataList.value[0].rawValue) // 触发父组件事件 |
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// 调用后台接口存入数据库 |
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// 数据存入数据库后跳转页面 |
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} |
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// 初始化摄像头 |
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const onInit = async (promise: any) => { |
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console.log('初始化摄像头', promise) |
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try { |
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await promise |
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} catch (err: any) { |
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if (err.name === 'NotAllowedError') { |
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error.value = 'ERROR: 您需要授予相机访问权限'; |
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} else if (err.name === 'NotFoundError') { |
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error.value = 'ERROR: 这个设备上没有摄像头'; |
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} else if (err.name === 'NotSupportedError') { |
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error.value = 'ERROR: 所需的安全上下文(HTTPS、本地主机)'; |
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} else if (err.name === 'NotReadableError') { |
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error.value = 'ERROR: 相机被占用'; |
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} else if (err.name === 'OverconstrainedError') { |
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error.value = 'ERROR: 安装摄像头不合适'; |
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} else if (err.name === 'StreamApiNotSupportedError') { |
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error.value = 'ERROR: 此浏览器不支持流API'; |
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} |
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} |
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|
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} |
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// 返回上一页箭头 |
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const onClickLeft = () => { |
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//history.back(); |
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emits('update-qrScaning', '1') // 触发父组件事件 |
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} |
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</script> |
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<style scoped> |
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:deep(i.van-badge__wrapper.van-icon.van-icon-arrow-left.scanImg) { |
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font-size: 40px; |
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color: white; |
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} |
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|
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.scanImg { |
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margin-top: 30px; |
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margin-left: 10px; |
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} |
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|
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.error { |
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font-weight: bold; |
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color: red; |
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} |
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|
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.cameraMessage { |
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width: 100%; |
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height: 60px; |
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} |
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|
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.qr-scanner { |
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background-size: 3rem 3rem; |
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background-position: -1rem -1rem; |
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width: 100%; |
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/* height: 100%; */ |
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height: 100vh; |
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/* height: 288px; */ |
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position: relative; |
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background-color: #1110; |
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} |
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|
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.qr-scanner .box { |
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width: 213px; |
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height: 213px; |
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position: absolute; |
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left: 50%; |
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top: 40%; |
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transform: translate(-50%, -50%); |
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overflow: hidden; |
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border: 1px solid #3aa5ff; |
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} |
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|
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.qr-scanner .txt { |
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width: 100%; |
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height: 35px; |
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line-height: 35px; |
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font-size: 14px; |
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text-align: center; |
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/* color: #f9f9f9; */ |
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margin: 0 auto; |
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position: absolute; |
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top: 60%; |
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left: 0; |
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} |
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|
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.qr-scanner .myQrcode { |
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text-align: center; |
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color: #3aa5ff; |
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} |
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|
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.qr-scanner .line { |
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height: calc(100% - 2px); |
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width: 100%; |
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background: linear-gradient(180deg, rgba(0, 255, 51, 0) 43%, #3aa5ff 211%); |
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border-bottom: 1px solid #3aa5ff; |
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transform: translateY(-100%); |
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animation: radar-beam 2s infinite alternate; |
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animation-timing-function: cubic-bezier(0.53, 0, 0.43, 0.99); |
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animation-delay: 1.4s; |
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} |
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|
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.qr-scanner .box:after, |
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.qr-scanner .box:before, |
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.qr-scanner .angle:after, |
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.qr-scanner .angle:before { |
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content: ''; |
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display: block; |
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position: absolute; |
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width: 3vw; |
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height: 3vw; |
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} |
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|
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.qr-scanner .box:after, |
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.qr-scanner .box:before { |
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top: 0; |
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border-top-color: #3aa5ff; |
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} |
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|
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.qr-scanner .angle:after, |
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.qr-scanner .angle:before { |
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bottom: 0; |
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border-bottom-color: #3aa5ff; |
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} |
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|
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.qr-scanner .box:before, |
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.qr-scanner .angle:before { |
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left: 0; |
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border-left-color: #3aa5ff; |
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} |
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|
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.qr-scanner .box:after, |
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.qr-scanner .angle:after { |
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right: 0; |
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border-right-color: #3aa5ff; |
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} |
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|
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@keyframes radar-beam { |
|||
0% { |
|||
transform: translateY(-100%); |
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} |
|||
|
|||
100% { |
|||
transform: translateY(0); |
|||
} |
|||
} |
|||
</style> |
|||
Loading…
Reference in new issue