vue调取摄像头的方法（可以直接使用）
<template>
<div>
<div class="scan">
<span class="prev" v-on:click="back">《</span>
<div id="bcid">
<div style="height:40%"></div>
<!-- <p class="tip">...载入中...</p> -->
</div>
<!-- <footer> -->
<!-- <button @click="startRecognize">开始扫描</button> -->
<!-- <button @click="startScan">2.开始扫描</button> -->
<!-- <button @click="cancelScan">3.结束扫描</button> -->
<!-- <button @click="closeScan">结束扫描</button> -->
<!-- </footer> -->
</div>
</div>
</template>
<script type='text/ecmascript-6'>
let scan = null;
export default {
data() {
return {
codeUrl: '',
}
},
mounted(){
this.startRecognize()
},
methods: {
back() {
this.$router.go(-1);
},
//创建扫描控件
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();
}
},
//开始扫描
startScan() {
if (!window.plus) return;
scan.start();
},
//关闭扫描
cancelScan() {
if (!window.plus) return;
scan.cancel();
},
//关闭条码识别控件
closeScan() {
if (!window.plus) return;
scan.close();
},
}
}
</script>
<style>
.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;
}
footer button{
height: 0.88rem;
line-height: 0.88rem;
text-align: center;
background-color: #f4f4f4;
color: #fff;
}
.prev {
position: absolute;
display: inline-block;
height: 0.36rem;
width: 0.36rem;
background-size: 0.36rem 0.36rem;
vertical-align: middle;
left: 0.18rem;
top: 0.17rem;
z-index: 100;
}
</style>
