desc:埋点[修改密码 - 页面浏览]

-import { CustomToast} from 'wdKit/Index';
+import { CustomToast, DateTimeUtils} from 'wdKit/Index';
 import { WDRouterPage, WDRouterRule } from 'wdRouter/Index';
 import { LoginModel } from './LoginModel';
 import { ModifyPasswordRequestItem } from './ModifyPasswordRequestItem';
 import { router } from '@kit.ArkUI';
 import { encryptMessage } from '../../utils/cryptoUtil';
+import { TrackingPageBrowse, TrackConstants } from 'wdTracking/Index';
 
 /**
  * 修改密码页面
@@ -26,7 +27,19 @@ struct ModifyPasswordPage {
     customStyle: true,
     maskColor:"#00000000"
   })
+  pageShowTime:number = 0;
+  pageHideTime:number = 0;
 
+  onPageShow() {
+    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.Change_Passwd,TrackConstants.PageName.Change_Passwd,duration)
+  }
 
   build() {
     Row() {