emis-app/components/tpx-physics-scan/tpx-physics-scan.vue

<template>
	<view></view>
</template>

<script>
	export default {
		props: {
			customintent: {
				default () {
					return {
						// !!注意： 不同的设备配置项是不同的
						scanDownKey: "KEYCODE_SCAN_L_DOWN",
						actionKey: 'com.android.receive_scan_action',
						codeKey: "data"
					}
				}
			},
			value: {
				default () {
					return ''
				}
			},
		},
		data() {
			return {
				receiver: '', 
				filter: '',
				codeQueryTag: false,
				main: '',
			}
		},
		created() {
			this.initScan()
			this.startScan();
		},
		onHide() {
			// this.stopScan();
		},
		unmounted() {
			this.stopScan();
		},
		methods: {
			initScan() {
				let that = this;
				console.log("执行initScan调用")
				console.log("actionKey==== " + that.customintent.actionKey)
				console.log("codeKey====  " + that.customintent.codeKey)
				//  #ifdef APP
				console.log('initScan');
				that.main = plus.android.runtimeMainActivity(); //获取activity
				//var context = plus.android.importClass('android.content.Context'); //上下文
				var IntentFilter = plus.android.importClass('android.content.IntentFilter');
				that.filter = new IntentFilter();
				//下面的addAction内改为自己的广播动作
				that.filter.addAction(that.customintent.actionKey);
				console.log("receive_pda_sn注册成功")
				that.receiver = plus.android.implements('io.dcloud.feature.internal.reflect.BroadcastReceiver', {
					onReceive: (context, intent) => {
						console.log("BroadcastReceiver--onReceive-回调执行")
						console.log('onReceive');
						plus.android.importClass(intent);
						//下面的getStringExtra内改为自己的广播标签--有误
						let code = intent.getStringExtra(that.customintent.codeKey);
						console.log("getStringExtra - code:" + code)
						that.queryCode(code);
					}
				});
				console.log("BroadcastReceiver绑定完成")
				// #endif
			},
			startScan() {
				const that = this
				//  #ifdef APP
				this.main.registerReceiver(this.receiver, this.filter);
				console.log('startScan');
				// #endif
			},
			stopScan() {
				console.log('stopScan');
				const that = this
				//  #ifdef APP
				this.main.unregisterReceiver(this.receiver);
				// #endif
			},
			queryCode: function(code) {
				let that = this;
				//  #ifdef APP
				console.log('queryCode');
				if (that.codeQueryTag) return false;
				that.codeQueryTag = true;
				setTimeout(function() {
					that.codeQueryTag = false;
				}, 150);
				that.$emit('onChange', code)
				console.log("uni.$emit触发wuli-appscan")
				// #endif
			},
			triggerKeyScan() {
				const that = this
				console.log("执行triggerKeyScan调用")
				debugger
				//  #ifdef APP
				//获取Android意图类
				let Intent = plus.android.importClass('android.content.Intent');
				//实例化意图
				let intent = new Intent();
				//定义意图，模拟按下L键，L键实际上是打开激光的物理键映射，由厂商提供
				const scanDownKey = "com.android.action.keyevent." + this.customintent.scanDownKey
				intent.setAction(scanDownKey);
				console.log("模拟按下L键: " +  scanDownKey)
				//广播这个意图
				that.main.sendBroadcast(intent);
				console.log("广播按下L键")
				// #endif
			}
		}
	}
</script>

<style>

</style>