feat:辅助条码

lib/common/utils/manage/barcode_scan_manage.dart

@@ -21,17 +21,29 @@ class BarcodeScanManage {
   Timer? _timer;
 
   // 二维码扫码结果
-  final _qrcodeScanController = StreamController<String>.broadcast();
-  Stream<String> get qrcodeScanStream => _qrcodeScanController.stream;
+  StreamController<String>? _qrcodeScanController;
+  Stream<String> get qrcodeScanStream {
+    _qrcodeScanController ??= StreamController<String>.broadcast();
+    return _qrcodeScanController!.stream;
+  }
 
   // 扫码枪扫码结果
-  final _gunScanController = StreamController<String>.broadcast();
-  Stream<String> get gunScanStream => _gunScanController.stream;
+  StreamController<String>? _gunScanController;
+  Stream<String> get gunScanStream {
+    _gunScanController ??= StreamController<String>.broadcast();
+    return _gunScanController!.stream;
+  }
 
   // 开始监听USB读头输入
   void startListening() {
     if (_isListening) return;
     _isListening = true;
+    if (_qrcodeScanController?.isClosed ?? true) {
+      _qrcodeScanController = StreamController<String>.broadcast();
+    }
+    if (_gunScanController?.isClosed ?? true) {
+      _gunScanController = StreamController<String>.broadcast();
+    }
     // 确保没有焦点的控件
     FocusManager.instance.primaryFocus?.unfocus();
     HardwareKeyboard.instance.addHandler(_handleKeyEvent);
@@ -59,9 +71,9 @@ class BarcodeScanManage {
           final result = _buffer.toString();
           logger.i("|$_tag|扫码结果: $result");
           if (result.length >= 100) {
-            _qrcodeScanController.add(result);
+            _qrcodeScanController?.add(result);
           } else {
-            _gunScanController.add(result);
+            _gunScanController?.add(result);
           }
           _buffer.clear();
         }
@@ -190,15 +202,15 @@ class BarcodeScanManage {
   // 释放资源
   void dispose() {
     stopListening();
-    _qrcodeScanController.close();
-    _gunScanController.close();
+    _qrcodeScanController?.close();
+    _gunScanController?.close();
   }
 
   void disposeQrCodeScan() {
-    _qrcodeScanController.close();
+    _qrcodeScanController?.close();
   }
 
   void disposeGunScan() {
-    _gunScanController.close();
+    _gunScanController?.close();
   }
 }

lib/common/utils/manage/print_manage.dart

@@ -12,6 +12,12 @@ class PrintManage extends BaseFacilityManage {
   int paperSizeWidthMM = PaperSizeWidth.mm80;
   int maxPerLine = PaperSizeMaxPerLine.mm80;
 
+  static const List<String> _printVendorIds = [
+    "19267",
+    "4070",
+    "10473",
+  ];
+
   @override
   String setName() => UsbFacilityNames.print.title;
 
@@ -20,10 +26,14 @@ class PrintManage extends BaseFacilityManage {
     final check = await super.open();
     if (!check) return false;
     final usbPrinter = await USBPrinterManager.discover();
-    final sysSetting = await AppSettingTool.getSysSetting();
-    final sysType = sysSetting.sysType;
-    final vendorId = sysType == SysType.CANTEEN ? 19267 : 4070;
-    final target = usbPrinter.firstWhereOrNull((v) => v.vendorId == vendorId);
+    USBPrinter? target = usbPrinter.firstWhereOrNull((v) {
+      return _printVendorIds.contains(v.vendorId ?? "-1");
+    });
+    if (ObjectUtil.isEmpty(target)) {
+      if (usbPrinter.length == 1) {
+        target = usbPrinter[0];
+      }
+    }
     if (ObjectUtil.isEmpty(target)) return false;
     profile = await CapabilityProfile.load();
     manager = USBPrinterManager(target!);
@@ -50,9 +60,9 @@ class PrintManage extends BaseFacilityManage {
       profile!,
     );
     List<int> bytes = [];
-    bytes += generator.feed(2);
+    bytes += generator.feed(1);
     bytes += generator.image(image!);
-    bytes += generator.feed(2);
+    bytes += generator.feed(1);
     bytes += generator.cut();
     try {
       await manager!.writeBytes(bytes);