diff --git a/entry/src/main/ets/common/Utils.ets b/entry/src/main/ets/common/Utils.ets
index facd5c084f9c40876d2e492a1b2c669309412dfd..cb4ab5e433a7c6e9c389df85e39f09fcf98952cd 100644
--- a/entry/src/main/ets/common/Utils.ets
+++ b/entry/src/main/ets/common/Utils.ets
@@ -16,9 +16,9 @@
 import { Constants } from './Constants';
 
 export class BreakpointType<T> {
-  sm: T;
-  md: T;
-  lg: T;
+  private sm: T;
+  private md: T;
+  private lg: T;
 
   constructor(sm: T, md: T, lg: T) {
     this.sm = sm;
diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index fd73a080cf489724c646439cdbfbc688f7f53143..0c9ff5be3d4856dedac6fcb999ea32f5b1d602ef 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -27,18 +27,22 @@ export default class EntryAbility extends UIAbility {
   private curBp: string = '';
 
   private updateBreakpoint(windowWidth: number): void {
-    let windowWidthVp = windowWidth / display.getDefaultDisplaySync().densityPixels;
-    let newBp: string = '';
-    if (windowWidthVp < 600) {
-      newBp = Constants.BREAK_POINT_SM;
-    } else if (windowWidthVp < 840) {
-      newBp = Constants.BREAK_POINT_MD;
-    } else {
-      newBp = Constants.BREAK_POINT_LG;
-    }
-    if (this.curBp !== newBp) {
-      this.curBp = newBp;
-      AppStorage.setOrCreate('currentBreakpoint', this.curBp);
+    try {
+      let windowWidthVp: number = windowWidth / display.getDefaultDisplaySync().densityPixels;
+      let newBp: string = '';
+      if (windowWidthVp < 600) {
+        newBp = Constants.BREAK_POINT_SM;
+      } else if (windowWidthVp < 840) {
+        newBp = Constants.BREAK_POINT_MD;
+      } else {
+        newBp = Constants.BREAK_POINT_LG;
+      }
+      if (this.curBp !== newBp) {
+        this.curBp = newBp;
+        AppStorage.setOrCreate('currentBreakpoint', this.curBp);
+      }
+    } catch (error) {
+      hilog.error(0x0000, TAG, 'updateBreakpoint catch err:', JSON.stringify(error) ?? '');
     }
   }
 
@@ -84,7 +88,7 @@ export default class EntryAbility extends UIAbility {
     AppStorage.setOrCreate('resourceManager', resourceManager);
     windowStage.loadContent('pages/Index', (err, data) => {
       if (err.code) {
-        hilog.error(0x0000, TAG, 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
+        hilog.error(0x0000, TAG, 'Failed to load the content. Cause:', JSON.stringify(err) ?? '');
         return;
       }
       hilog.info(0x0000, TAG, 'Succeeded in loading the content. Data: %{public}s', JSON.stringify(data) ?? '');
@@ -93,7 +97,8 @@ export default class EntryAbility extends UIAbility {
       windowClass.setWindowLayoutFullScreen(isLayoutFullScreen).then(() => {
         hilog.info(0x0000, TAG, '%{public}s', 'Succeeded in setting the window layout to full-screen mode');
       }).catch((err: BusinessError) => {
-        hilog.error(0x0000, TAG, 'Failed to set the window layout to full-screen mode. Cause:', JSON.stringify(err) ?? '');
+        hilog.error(0x0000, TAG, 'Failed to set the window layout to full-screen mode. Cause:',
+          JSON.stringify(err) ?? '');
       });
     });
   }