hyzp_ybqx-Commit103：登录时已经能够根据qx_trial_tag的值，确定是否添加水印，但注销后还无法清除水印

lib/pages/tabs/Tabs.dart

@@ -3,6 +3,7 @@ import 'package:disable_screenshots/disable_screenshots.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:hyzp_ybqx/pages/tabs/page4_myMsics_new.dart';
+import 'package:hyzp_ybqx/services/EventBus.dart';
 
 //import '../../widget/player_pro.dart';
 import '../../components/commonFun.dart';
@@ -27,11 +28,18 @@ class _TabsState extends State<Tabs> {
     try {
       if (mounted) {
         setState(() {});
-        if (g_userInfo.trialTag) {
+        //区县用户登录接口增加返回字段“sfsy”，0表示正式账号，1表示试用账号
+        // print(g_userInfo.mapUserInfo);
+        qx_trial_tag = 1; // 测试用
+        if (1 == qx_trial_tag) {
+          print('addWatermark');
           // 添加默认样式的水印
-          _watermarkPlugin.addWatermark(context, "试用版本水印", rowCount: 4, columnCount: 8);
+          _watermarkPlugin.addWatermark(context, "黑烟抓拍试用版", rowCount: 4, columnCount: 8);
           // _watermarkPlugin必须放在这里，放在Widget build(BuildContext context)函数中会报错：
           // Dart Unhandled Exception: setState() or markNeedsBuild() called during build.
+        } else {
+          print('removeWatermark');
+          _watermarkPlugin.removeWatermark();
         }
       }
     } catch (e) {
@@ -62,6 +70,12 @@ class _TabsState extends State<Tabs> {
       bPreLoading = false;
       bLoginVerify = false; //处理延时登录，判断用户名登录是否验证通过
     });
+
+    //监听试用版水印改变事件
+    eventBus.on<WatermarkUpdate>().listen((event) {
+      print(event.str);
+      try_setState();
+    });
   }
 
   double _activeIconWidth = 68;