diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index d8032b8b0e6d0ea5c285cc026791ed4ca676259f..ea884490a2d1f583c9c23477879d13989b88d20c 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -36,12 +36,10 @@ export default class EntryAbility extends UIAbility {
   // [Start Bp2]
   // [Start SelectCamera2]
   // [Start SelectCamera4]
-  // [Start Preview2]
   onWindowSizeChange: (windowSize: window.Size) => void = (windowSize: window.Size) => {
     // [StartExclude SelectCamera4]
     // [StartExclude WindowSizeChange]
     // [StartExclude SelectCamera2]
-    // [StartExclude Preview2]
     this.setOrientation(this.uiContext!.px2vp(windowSize.width), this.uiContext!.px2vp(windowSize.height));
     // [StartExclude Bp2]
     AppStorage.setOrCreate('windowSize', windowSize);
@@ -53,7 +51,6 @@ export default class EntryAbility extends UIAbility {
     AppStorage.setOrCreate('displayOrientation', displayOrientation);
     // [EndExclude WindowSizeChange]
     // [EndExclude SelectCamera2]
-    // [EndExclude Preview2]
     if (!this.isFirstTime) {
       this.cameraUtil!.setXComponentRect(this.windowUtil!.getWindowSize());
     } else {
@@ -65,7 +62,6 @@ export default class EntryAbility extends UIAbility {
   // [End SelectCamera2]
   // [StartExclude WindowSizeChange]
   // [End SelectCamera4]
-  // [End Preview2]
 
   setOrientation(width: number, height: number): void {
     // When the minimum value of window width and height is greater than the md breakpoint threshold, rotation is supported.
@@ -99,8 +95,6 @@ export default class EntryAbility extends UIAbility {
     AppStorage.setOrCreate('windowUtil', new WindowUtil());
     this.windowUtil = AppStorage.get<WindowUtil>('windowUtil');
     this.windowUtil!.setWindowStage(windowStage);
-    // Monitor window size changes and update breakpoints.
-    windowStage.getMainWindowSync().on('windowSizeChange', this.onWindowSizeChange);
     // [EndExclude WindowSizeChange]
     // [EndExclude Bp2]
     windowStage.loadContent('pages/Index', (err) => {
@@ -135,6 +129,8 @@ export default class EntryAbility extends UIAbility {
         let displayOrientation: display.Orientation = display.getDefaultDisplaySync().orientation;
         AppStorage.setOrCreate('displayOrientation', displayOrientation);
         // [EndExclude WindowSizeChange]
+        // Monitor window size changes and update breakpoints.
+        windowStage.getMainWindowSync().on('windowSizeChange', this.onWindowSizeChange);
         // [StartExclude WindowSizeChange]
         AppStorage.setOrCreate('isBackground', false);
         // [EndExclude Bp2]
diff --git a/entry/src/main/ets/pages/Index.ets b/entry/src/main/ets/pages/Index.ets
index 2a5123051cc6ad979419133d9b19f7927a6a8034..43b79a5c26ff184bcbd9ec766447e23a75d8f627 100644
--- a/entry/src/main/ets/pages/Index.ets
+++ b/entry/src/main/ets/pages/Index.ets
@@ -16,7 +16,6 @@
 import { display, window } from '@kit.ArkUI';
 import { camera } from '@kit.CameraKit';
 import { abilityAccessCtrl, Permissions } from '@kit.AbilityKit';
-import { hilog } from '@kit.PerformanceAnalysisKit';
 import { ChooseMusic, SettingButton, ShotArea, ShotAreaHalfFolded, ShotAreaSm } from '../views/CommonView';
 import { CameraUtil } from '../utils/CameraUtil';
 import { WindowUtil } from '../utils/WindowUtil';
@@ -44,6 +43,7 @@ struct Index {
     'ohos.permission.READ_IMAGEVIDEO',
     'ohos.permission.WRITE_IMAGEVIDEO'
   ];
+  // [Start Preview2]
   // [Start FoldStatusChange]
   onFoldStatusChange: (foldStatus: display.FoldStatus) => void = (foldStatus: display.FoldStatus) => {
     if (foldStatus === display.FoldStatus.FOLD_STATUS_HALF_FOLDED) {
@@ -51,25 +51,30 @@ struct Index {
       // Determine the page layout that has entered half folded status and prohibit portrait orientation.
       if (this.widthBp === WidthBreakpoint.WIDTH_MD && (orientation === display.Orientation.LANDSCAPE ||
         orientation === display.Orientation.LANDSCAPE_INVERTED)) {
+        // [StartExclude Preview2]
         this.isHalfFolded = true;
-        this.cameraUtil!.setXComponentRect(this.windowUtil.getWindowSize());
         this.windowUtil.setMainWindowOrientation(window.Orientation.LANDSCAPE);
+        // [EndExclude Preview2]
+        this.cameraUtil!.setXComponentRect(this.windowUtil.getWindowSize());
       }
+      return;
     }
     // Exit the half folded status page.
-    else {
-      if (this.isHalfFolded) {
-        this.isHalfFolded = false;
-        this.cameraUtil!.setXComponentRect(this.windowUtil.getWindowSize());
-      } else {
-        this.isHalfFolded = false;
-      }
-      if (this.widthBp !== WidthBreakpoint.WIDTH_SM) {
-        this.windowUtil.setMainWindowOrientation(window.Orientation.AUTO_ROTATION_RESTRICTED);
-      }
+    if (this.isHalfFolded) {
+      // The variable isHalfFolded will be used in the judgment of the next method.
+      this.isHalfFolded = false;
+      this.cameraUtil!.setXComponentRect(this.windowUtil.getWindowSize());
+    } else {
+      this.isHalfFolded = false;
+    }
+    // [StartExclude Preview2]
+    if (this.widthBp !== WidthBreakpoint.WIDTH_SM) {
+      this.windowUtil.setMainWindowOrientation(window.Orientation.AUTO_ROTATION_RESTRICTED);
     }
+    // [EndExclude Preview2]
   }
   // [End FoldStatusChange]
+  // [End Preview2]
 
   aboutToAppear(): void {
     display.on('foldStatusChange', this.onFoldStatusChange);
diff --git a/entry/src/main/module.json5 b/entry/src/main/module.json5
index 190d4fae9255a9dc0203d063640879d05280d625..a1e61442532d94ba750ee64c5c37ac2a678648f3 100644
--- a/entry/src/main/module.json5
+++ b/entry/src/main/module.json5
@@ -22,7 +22,7 @@
         "startWindowIcon": "$media:startIcon",
         "startWindowBackground": "$color:start_window_background",
         "exported": true,
-        "supportWindowMode": ["fullscreen"],
+        "supportWindowMode": ["fullscreen", "floating"],
         "skills": [
           {
             "entities": [