<template>  
    <div class="content"></div>  
</template>  
 
<script>  
var main,receiver,filter;    
var _codeQueryTag = false;    
export default {  
    data() {  
        return {  
            scanCode: ''  
        }  
    },  
    created () { 
			// #ifdef APP-PLUS
			this.initScan();
			this.startScan(); 
			// #endif
    },    
    onHide(){
			// #ifdef APP-PLUS
			this.stopScan();
			// #endif
    },  
    destroyed(){    
			/*页面退出时一定要卸载监听,否则下次进来时会重复，造成扫一次出2个以上的结果*/  
			// #ifdef APP-PLUS
			this.stopScan();
			// #endif
    },    
    methods: {  
        initScan() {
        		let _this = this;  
        		main = plus.android.runtimeMainActivity();//获取activity  
        		var IntentFilter = plus.android.importClass('android.content.IntentFilter');   
        		filter = new IntentFilter();    
        		filter.addAction("com.android.server.scannerservice.broadcast"); // 换你的广播动作  
        		receiver = plus.android.implements('io.dcloud.feature.internal.reflect.BroadcastReceiver',{  
        		onReceive : function(context, intent) {
        				plus.android.importClass(intent);     
        				let code = intent.getStringExtra("scannerdata");// 换你的广播标签  
        				_this.queryCode(code);    
        		}});    
        },    
        startScan(){    
        		main.registerReceiver(receiver,filter);  
        },    
        stopScan(){  
        		main.unregisterReceiver(receiver);    
        },    
        queryCode(code){  
        		//防重复  
        		if(_codeQueryTag)return false;    
        		_codeQueryTag = true;    
        		setTimeout(function(){    
        				_codeQueryTag = false;    
        		},150);  
        		var id = code  
        		uni.$emit('scan',id)  
        }
    }  
}  
</script>  
 
<style>  
  /*  page {  
        background-color: #efeff4;  
    }  
    .content {  
        text-align: center;  
    }  */
</style>