desc:埋点[设置-页面浏览（浏览时长传空值）]

@@ -4,6 +4,7 @@ import { AccountAndSecurityLayout } from '../setting/AccountAndSecurityLayout';
 import router from '@ohos.router';
 import { Action, Params } from 'wdBean';
 import { DateTimeUtils } from 'wdKit/Index';
+import { TrackingPageBrowse, TrackConstants } from 'wdTracking/Index';
 
 @Entry
 @Component
@@ -12,13 +13,22 @@ struct SettingPage {
   @State pageType: string = 'mainSetting';
   @State params:Params =  router.getParams() as Params;
   @State enterActivityTime:number = 0;
+  pageShowTime:number = 0;
+  pageHideTime:number = 0;
 
   onPageShow() {
-
+    this.pageShowTime = DateTimeUtils.getTimeStamp()
     this.pageType = this.params.pageID;
     this.enterActivityTime = DateTimeUtils.getTimeStamp()
   }
 
+  onPageHide(): void {
+    this.pageHideTime = DateTimeUtils.getTimeStamp()
+    let duration = 0
+    duration = Math.floor((this.pageHideTime - this.pageShowTime)/1000)
+    TrackingPageBrowse.trackCommonPageExposureEnd(TrackConstants.PageName.Setting,TrackConstants.PageName.Setting,duration)
+  }
+
   build() {
     Column() {
       if (this.pageType == 'mainSetting') {