43 lines
1.4 KiB
JavaScript
43 lines
1.4 KiB
JavaScript
export const initRfidScan = (callback) => {
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// #ifdef APP-PLUS
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const main = plus.android.runtimeMainActivity();
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const IntentFilter = plus.android.importClass('android.content.IntentFilter');
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const filter = new IntentFilter();
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filter.addAction('com.ubx.scan.rfid'); // 广播动作
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const processedData = new Set(); // 用于记录已处理的数据
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let debounceTimer = null; // 用于存储定时器
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const debounceDelay = 500; // 防抖延迟时间（毫秒）
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const receiver = plus.android.implements('io.dcloud.feature.internal.reflect.BroadcastReceiver', {
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onReceive: (context, intent) => {
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plus.android.importClass(intent);
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const rfidEpc = intent.getStringExtra('rfid_epc'); // 广播标签数据
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const rfidData = intent.getStringExtra('rfid_data'); // 广播标签数据
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// 防抖处理
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clearTimeout(debounceTimer);
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debounceTimer = setTimeout(() => {
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// 检查是否已经处理过该数据
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if (!processedData.has(rfidData)) {
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processedData.add(rfidData); // 记录已处理的数据
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if (callback) {
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callback({ rfidEpc, rfidData });
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}
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} else {
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console.log('Duplicate RFID Data:', rfidData);
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}
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}, debounceDelay);
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},
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});
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main.registerReceiver(receiver, filter);
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// 保存引用以便后续注销
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return () => {
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clearTimeout(debounceTimer); // 清除定时器
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main.unregisterReceiver(receiver);
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processedData.clear(); // 清空已处理的数据记录
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};
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// #endif
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}; |