<template>
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<view>
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<view class="content"></view>
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</view>
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</template>
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<script lang="ts" setup>
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declare const plus: any;
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const main = ref();
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const receiver = ref();
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const filter = ref();
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const codeQueryTag = ref(false);
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const isInitialized = ref(false);
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const isReceiverRegistered = ref(false);
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const scanTimeoutMs = 3500;
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const scanTimeoutTimer = ref<ReturnType<typeof setTimeout> | null>(null);
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const isWaitingScanResult = ref(false);
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const isScanning = ref(false);
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const props = defineProps({
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emitName: {
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type: String,
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default: "scan",
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},
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});
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const clearScanTimeout = () => {
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if (!scanTimeoutTimer.value) return;
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clearTimeout(scanTimeoutTimer.value);
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scanTimeoutTimer.value = null;
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};
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const startScanTimeoutWatch = () => {
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clearScanTimeout();
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isWaitingScanResult.value = true;
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scanTimeoutTimer.value = setTimeout(() => {
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if (!isWaitingScanResult.value) return;
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console.warn("扫码超时未收到广播");
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isWaitingScanResult.value = false;
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isScanning.value = false;
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queryCode("");
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scanTimeoutTimer.value = null;
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}, scanTimeoutMs);
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};
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const initScan = () => {
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if (isInitialized.value) return;
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main.value = plus.android.runtimeMainActivity(); //获取activity
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let IntentFilter: any = plus.android.importClass("android.content.IntentFilter");
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filter.value = new IntentFilter();
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//下面的addAction 改为自己 pad 设备的广播动作（在扫描设置或者厂商附带的app 里面设置为广播模式，然后查看相应参数）
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filter.value.addAction("com.dwexample.ACTION");
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receiver.value = plus.android.implements("io.dcloud.feature.internal.reflect.BroadcastReceiver", {
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onReceive: (context: any, intent: any) => {
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console.log("---onReceive：", context, intent);
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plus.android.importClass(intent);
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//下面的getStringExtra内改为自己的广播标签（键值/key）： data
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//斑马 TC20
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var banMaSacanInfo = intent.getStringExtra(
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"com.motorolasolutions.emdk.datawedge.data_string"
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);
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if (!banMaSacanInfo) {
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banMaSacanInfo =
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intent.getStringExtra("com.symbol.datawedge.data_string") ||
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intent.getStringExtra("data");
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}
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// callback(intent.getStringExtra('com.motorolasolutions.emdk.datawedge.data_string'));
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console.log("斑马扫描结果", banMaSacanInfo);
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// 传入接收到的参数
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isWaitingScanResult.value = false;
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isScanning.value = false;
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clearScanTimeout();
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if (!banMaSacanInfo) {
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console.warn("扫描返回为空");
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}
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queryCode(banMaSacanInfo || "");
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},
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});
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isInitialized.value = true;
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};
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// 开启广播
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const startScan = () => {
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// #ifdef APP
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if (!isInitialized.value) {
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initScan();
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}
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if (!main.value || !receiver.value || !filter.value || isReceiverRegistered.value) return;
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console.log("startScan,开启广播接收");
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try {
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main.value.registerReceiver(receiver.value, filter.value);
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isReceiverRegistered.value = true;
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} catch (error) {
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console.error("startScan失败", error);
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}
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// #endif
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};
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// 关闭广播
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const stopScan = () => {
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// #ifdef APP
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if (!main.value || !receiver.value || !isReceiverRegistered.value) return;
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console.log("stopScan结束");
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try {
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main.value.unregisterReceiver(receiver.value);
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} catch (error) {
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console.error("stopScan失败", error);
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} finally {
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isReceiverRegistered.value = false;
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}
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// #endif
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};
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const queryCode = (code: any) => {
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// #ifdef APP
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if (codeQueryTag.value) {
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console.warn("短时间内重复回调被拦截");
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return false;
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}
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codeQueryTag.value = true;
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setTimeout(function () {
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codeQueryTag.value = false;
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}, 300);
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// console.log('-****--扫码code： ', code);
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let data = code;
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uni.$emit(props.emitName, {
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code: data,
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});
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// #endif
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};
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const triggerScan = () => {
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console.log("触发扫描");
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if (isScanning.value) {
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console.warn("已有扫描进行中，忽略本次触发");
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return;
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}
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isScanning.value = true;
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if (!main.value) return;
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startScanTimeoutWatch();
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const Intent = plus.android.importClass("android.content.Intent");
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const intent = new Intent();
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intent.setAction("com.symbol.datawedge.api.ACTION");
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intent.putExtra("com.symbol.datawedge.api.SOFT_SCAN_TRIGGER", "START_SCANNING");
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main.value.sendBroadcast(intent);
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};
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onLoad(() => {
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console.log("初始化");
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// 初始化
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initScan();
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// 启动广播
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startScan();
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});
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onShow(() => {
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startScan();
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});
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onHide(() => {
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isWaitingScanResult.value = false;
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clearScanTimeout();
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stopScan();
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});
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onUnmounted(() => {
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isWaitingScanResult.value = false;
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clearScanTimeout();
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stopScan();
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});
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defineExpose({
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triggerScan,
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});
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</script>
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