diff --git a/entry/src/main/ets/pages/Index.ets b/entry/src/main/ets/pages/Index.ets
index b2e99b706f35ee31a4c526878fdf6af9153a2734..11c37c8a6c80560d93d82e833b41ab1cf338e269 100644
--- a/entry/src/main/ets/pages/Index.ets
+++ b/entry/src/main/ets/pages/Index.ets
@@ -34,11 +34,11 @@ struct Index {
   aboutToAppear(): void {
     this.classifyList = new ClassifyViewModel().getClassifyModelList();
 
-    window.getLastWindow(getContext(this)).then((windowStage: window.Window) => {
+    window.getLastWindow(this.getUIContext().getHostContext()).then((windowStage: window.Window) => {
       let area = windowStage.getWindowAvoidArea(window.AvoidAreaType.TYPE_SYSTEM);
-      this.topArea = px2vp(area.topRect.height);
+      this.topArea = this.getUIContext().px2vp(area.topRect.height);
       let bottom = windowStage.getWindowAvoidArea(window.AvoidAreaType.TYPE_NAVIGATION_INDICATOR);
-      this.bottomArea = px2vp(bottom.bottomRect.height);
+      this.bottomArea = this.getUIContext().px2vp(bottom.bottomRect.height);
       if (this.topArea > 0) {
         windowStage.setWindowLayoutFullScreen(true);
       }
@@ -69,7 +69,7 @@ struct Index {
                 right: $r('app.float.image_margin_right')
               })
               .onClick(() => {
-                router.back();
+                this.getUIContext().getRouter().back();
               })
 
             Text($r('app.string.title'))
@@ -132,7 +132,7 @@ struct Index {
                     Text(item.classifyName)
                       .fontSize($r('app.float.common_font_size'))
                       .fontColor(index === this.currentClassify ?
-                        $r('app.color.select_title_color') : $r('app.color.title_color'))
+                      $r('app.color.select_title_color') : $r('app.color.title_color'))
                       .fontWeight(index === this.currentClassify ? CommonConstants.FONT_WEIGHT_500 : FontWeight.Normal)
                       .fontFamily($r('app.string.common_font_family'))
                       .width($r('app.float.item_width'))