desc:埋点[隐私设置页 - 页面浏览（浏览时长传空值）]

-import { PermissionUtil } from 'wdKit'
+import { DateTimeUtils, PermissionUtil } from 'wdKit'
 import { PrivacySettingModel } from '../../model/PrivacySettingModel'
 import { Params } from 'wdBean';
 import { WDRouterPage, WDRouterRule } from 'wdRouter';
 import { HttpUtils } from 'wdNetwork/Index';
+import { TrackingPageBrowse, TrackConstants } from 'wdTracking/Index';
 
 const TAG = 'PrivacySettingPage';
 const DiyString = '开启个性化推荐'
@@ -15,9 +16,19 @@ export struct PrivacySettingPage {
   tips: string = '设置前可查阅'
   privacyTips: string = '《隐私政策》'
   tipsEnd = '中相应权限使用规则'
+  pageShowTime:number = 0;
+  pageHideTime:number = 0;
 
   onPageShow(): void {
     this.getPermissionStatus();
+    this.pageShowTime = DateTimeUtils.getTimeStamp()
+  }
+
+  onPageHide(): void {
+    this.pageHideTime = DateTimeUtils.getTimeStamp()
+    let duration = 0
+    duration = Math.floor((this.pageHideTime - this.pageShowTime)/1000)
+    TrackingPageBrowse.trackCommonPageExposureEnd(TrackConstants.PageName.Privacy_Setting,TrackConstants.PageName.Privacy_Setting,duration)
   }
 
   aboutToAppear() {

@@ -97,7 +97,7 @@ export namespace TrackConstants {
 
     /// 设置页
     Setting = "settingPage",
-    /// 账号管理
+    /// 账号管理//账户与安全
     Account_Management = "accountManagementPage",
     /// 注销账户
     Cancel_Account = "cancelAccountPage",