增加下拉刷新功能

lib/common/manager/app_manager.dart

@@ -2,6 +2,7 @@ import 'package:cashier_reserve/common/push/push.dart';
 import 'package:cashier_reserve/data_model/login/login_result.dart';
 import 'package:cashier_reserve/login/login_view.dart';
 import 'package:cashier_reserve/model/reserve_model.dart';
+import 'package:easy_refresh/easy_refresh.dart';
 
 import '../base/ui.dart';
 import '../channel/channel_event.dart';
@@ -18,6 +19,21 @@ class AppManager {
     MyEventChannel.startListener();
 
     await HiveManager.initHive();
+
+    EasyRefresh.defaultHeaderBuilder = () => const ClassicHeader(
+          dragText: "下拉刷新",
+          readyText: "释放刷新",
+          armedText: "正在刷新",
+          processingText: "正在刷新",
+          processedText: "刷新完成",
+          noMoreText: "没有更多数据了",
+          failedText: "刷新失败",
+          messageText: "上次刷新时间：%T",
+          showText: true,
+          showMessage: true,
+          iconDimension: 30,
+          spacing: 10,
+        );
   }
 
   static void setGlobalContext(BuildContext context) {