qr(二维码)

首次使用请执行weexplus plugin add https://github.com/farwolf2010/qr

一个相机组件，只用来识别二维码，条形码，和module下的qr不一样，这个方便自定义扫描的界面，更为灵活

api

/** 开始扫描
scan(callback)
/** 停止扫描
stop()

demo

<template>
    <div>
        <text>{{text}}</text>
        <qr ref="qr" style="position: absolute;top: 0;left: 0;right: 0;bottom: 0">
        </qr>
        <div  style="position: absolute;top: 0;left: 0;right: 0;bottom: 0;background-color: transparent;">
           <!--<button @click="start"></button>-->
           <!--<button @click="stop"></button>-->
            <div style="width: 750px;flex: 1;background-color: rgba(0,0,0,0.3)"></div>
            <div style="height: 450px;flex-direction: row">
                <div style="width: 150px;background-color: rgba(0,0,0,0.3)">
                </div>
                <div style="flex: 1"></div>
                <div style="width: 150px;background-color: rgba(0,0,0,0.3)">
                </div>
            </div>
            <div style="width: 750px;flex:1;background-color: rgba(0,0,0,0.3)"></div>
        </div>
    </div>
</template>
<script>
    export default{
        components: { },
        data(){
            return {
                text:''
            }
        },
        props: {},
        methods: {
            start(){
            },
            stop(){
            },
            onLoad(p){
            }
        },
        mounted(){
          this.$refs.qr.scan((res)=>{
             this.text=res.res
              this.toast(this.text)
          })
        },
        created(){
        }
    }
</script>
<style scoped>
</style>