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screw-scan-qrcode

v1.0.2

Published

Webcam-driven QR code scanner.

Downloads

2

Readme

ScrewScanQrcode

基于 instascan 的扩展扫描类库。instascan 在华为设备上有问题。这里做了一些合并和改造。类库采用 umd 方式进行打包,所以导入方式支持多种

安装

项目依赖方式

npm i screw-scan-qrcode -S

或者

yarn add screw-scan-qrcode -S

或者

pnpm add screw-scan-qrcode -S

外部引用方式

<script src="./dist/ScrewScanQrcode.js"></script>

使用

项目依赖方式

import ScrewScanQrcode from "screw-scan-qrcode"

直接引用方式

<script src="./dist/ScrewScanQrcode.js"></script>

demo

html 代码:

<video id="preview" autoplay controls="true" webkit-playsinline="true" playsinline="true"></video>

javascript:代码:


var allCameras = []
var activeCamera = null

var scanner = new ScrewScanQrcode.Scanner({
  video: document.getElementById("preview"),
  scanPeriod: 5,
  mirror: false, //不用镜像模式,镜像模式类似于镜子
})

scanner.addListener("scan", function (content, image) {
  console.log({ date: +Date.now(), content: content })
})

ScrewScanQrcode.Camera.getCameras()
  .then(function (cameras) {
    allCameras = cameras
    activeCamera = cameras[0]
    //开始扫描的方法
    scanner.start(activeCamera, "auto")
  })
  .catch(function (e) {
    alert("error message:" + e)
    console.error(e)
  })