<template>
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<view />
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</template>
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<script>
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let mainActivity;
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let receiver;
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let intentFilter;
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let isRegistered = false;
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let lock = false;
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export default {
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name: "PdaScan",
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props: {
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active: { type: Boolean, default: true },
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eventName: { type: String, default: "scan" },
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action: { type: String, default: "" },
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extraKey: { type: String, default: "" },
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debounceMs: { type: Number, default: 150 },
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},
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mounted() {
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this.init();
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if (this.active) this.start();
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},
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beforeUnmount() {
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this.stop();
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},
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watch: {
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active(val) {
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if (val) {
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this.init();
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this.start();
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} else {
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this.stop();
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}
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},
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},
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methods: {
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canUseAndroidBroadcast() {
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try {
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if (typeof plus === "undefined") return false;
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if (!plus.os || plus.os.name !== "Android") return false;
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if (!plus.android) return false;
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return true;
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} catch (e) {
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return false;
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}
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},
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resolveBroadcastConfig(sys) {
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if (this.action && this.extraKey) {
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return { action: this.action, extraKey: this.extraKey };
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}
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const brand = String(sys?.brand || "").toUpperCase();
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const model = String(sys?.model || "").toUpperCase();
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if (
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brand.includes("DROI") ||
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model.includes("MV-IDP5204") ||
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model.includes("IDP")
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) {
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return { action: "com.service.scanner.data", extraKey: "ScanCode" };
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}
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return { action: "", extraKey: "" };
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},
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init() {
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if (!this.canUseAndroidBroadcast()) return;
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if (mainActivity && receiver && intentFilter) return;
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let sys = {};
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try {
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sys = uni.getSystemInfoSync() || {};
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} catch (e) {
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sys = {};
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}
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const cfg = this.resolveBroadcastConfig(sys);
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if (!cfg.action || !cfg.extraKey) return;
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this.initAndroidReceiver(cfg.action, cfg.extraKey);
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},
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initAndroidReceiver(action, extraKey) {
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const _this = this;
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mainActivity = plus.android.runtimeMainActivity();
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const IntentFilter = plus.android.importClass(
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"android.content.IntentFilter"
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);
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intentFilter = new IntentFilter();
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intentFilter.addAction(action);
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receiver = plus.android.implements(
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"io.dcloud.feature.internal.reflect.BroadcastReceiver",
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{
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onReceive(context, intent) {
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plus.android.importClass(intent);
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const code = intent.getStringExtra(extraKey);
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_this.emitCode(code);
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},
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}
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);
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},
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start() {
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if (!this.canUseAndroidBroadcast()) return;
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if (!mainActivity || !receiver || !intentFilter) return;
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if (isRegistered) return;
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try {
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mainActivity.registerReceiver(receiver, intentFilter);
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isRegistered = true;
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} catch (e) {}
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},
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stop() {
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if (!this.canUseAndroidBroadcast()) return;
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if (!mainActivity || !receiver) return;
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if (!isRegistered) return;
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try {
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mainActivity.unregisterReceiver(receiver);
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} catch (e) {}
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isRegistered = false;
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},
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emitCode(code) {
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const value = code == null ? "" : String(code);
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const text = value.replace(/\n/g, "").trim();
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if (!text) return;
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if (lock) return;
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lock = true;
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setTimeout(() => {
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lock = false;
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}, this.debounceMs);
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const payload = { code: text };
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uni.$emit(this.eventName, payload);
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this.$emit("scan", payload);
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},
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},
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};
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</script>
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