hyzp_ybqx-Commit104：登录时已经能够根据qx_trial_tag的值，确定是否添加水印，注销后已经能够清除可能存在的水印

lib/pages/tabs/Tabs.dart

@@ -3,7 +3,6 @@ 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';
@@ -70,12 +69,6 @@ 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;

lib/pages/tabs/page4_myMsics_new.dart

@@ -390,6 +390,7 @@ class _Page4_MyMsicsNewState extends State<Page4_MyMsicsNew>
                 mapStatisInfo.forEach((key, value) {
                   mapStatisInfo[key] = -1;
                 });
+                // eventBus.fire(WatermarkUpdate('试用版水印改变事件'));
                 Navigator.pushNamed(context, '/', arguments: 0);
               },
             ),