uniapp在h5页面实现扫码功能(html5-qrcode)
安装npm install html5-qrcode代码
<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>测试效果
uniapp运行到浏览器
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