feat:打印机优化

lib/common/utils/manage/print_manage.dart

@@ -5,6 +5,8 @@ import 'package:get/get.dart';
 import 'package:pj_supermarket_cloud/common/index.dart';
 
 class PrintManage extends BaseFacilityManage {
+  static const String _tag = "打印机管理";
+
   USBPrinterManager? manager;
   CapabilityProfile? profile;
   int paperSizeWidthMM = PaperSizeWidth.mm80;
@@ -25,8 +27,13 @@ class PrintManage extends BaseFacilityManage {
     if (ObjectUtil.isEmpty(target)) return false;
     profile = await CapabilityProfile.load();
     manager = USBPrinterManager(target!);
-    final res = await manager!.connect();
-    return res.value == 1;
+    try {
+      await manager?.connect();
+      return true;
+    } catch (e) {
+      logger.e("|$_tag|打开打印机失败error|$e|");
+      return false;
+    }
   }
 
   Future<bool> printImg(String img) async {
@@ -43,11 +50,17 @@ class PrintManage extends BaseFacilityManage {
       profile!,
     );
     List<int> bytes = [];
+    bytes += generator.feed(2);
     bytes += generator.image(image!);
-    bytes += generator.feed(1);
+    bytes += generator.feed(2);
     bytes += generator.cut();
-    final res = await manager!.writeBytes(bytes);
-    return res.value == 1;
+    try {
+      await manager!.writeBytes(bytes);
+      return true;
+    } catch (e) {
+      logger.e("|$_tag|打印机失败error|$e|");
+      return false;
+    }
   }
 
   @override

lib/common/utils/sync/sync_print_tool.dart

@@ -1,3 +1,5 @@
+import 'dart:convert';
+
 import 'package:common_utils/common_utils.dart';
 import 'package:get/get.dart';
 
@@ -14,8 +16,8 @@ abstract class SyncPrintTool {
     required String historyId,
     required String pic,
   }) async {
-    final app = Get.find<AppControl>();
-    final printHistoryDao = app.dataBase.getPrintHistoryDao;
+    final appC = Get.find<AppControl>();
+    final printHistoryDao = appC.dataBase.getPrintHistoryDao;
     final saveObj = PrintHistoryEntity(
       orderId: androidOrderId,
       serviceOrderId: orderId,
@@ -35,9 +37,9 @@ abstract class SyncPrintTool {
       logger.i("|$_tag|检查打印,正在打印中");
       return;
     }
-    final app = Get.find<AppControl>();
-    final printHistoryDao = app.dataBase.getPrintHistoryDao;
-    final printFacility = app.printManage;
+    final appC = Get.find<AppControl>();
+    final printHistoryDao = appC.dataBase.getPrintHistoryDao;
+    final printFacility = appC.printManage;
     try {
       // 检查有没有需要打印的
       final list = await printHistoryDao.getAll(PrintStatus.NONE.name);
@@ -72,7 +74,7 @@ abstract class SyncPrintTool {
       if (!isPrint) {
         v.status = PrintStatus.ERROR;
         await printHistoryDao.edit(v);
-        throw Error();
+        throw Exception("|$_tag|打印失败params|${v.toJson()}|");
       }
       // 更新本地数据库
       v.status = PrintStatus.SUCCESS;