diff --git a/entry/src/main/ets/constant/StackConstant.ets b/entry/src/main/ets/constant/StackConstant.ets
index e64286fda6e64db051f4abcaad4444d8b69dbdf4..b4f6e5ebcdbaafc96393995b9f581de868867d20 100644
--- a/entry/src/main/ets/constant/StackConstant.ets
+++ b/entry/src/main/ets/constant/StackConstant.ets
@@ -54,11 +54,6 @@ export class StackConstant {
    */
   public static readonly USED_SPACE: number = 110;
 
-  /**
-   * fonts setting transparency.
-   */
-  public static readonly OPACITY: number = 0.6;
-
   /**
    * Product list column margin.
    */
@@ -108,14 +103,4 @@ export class StackConstant {
    * Breakpoint sm.
    */
   public static readonly BREAK_POINT_SM: string = 'sm';
-
-  /**
-   * Breakpoint md.
-   */
-  public static readonly BREAK_POINT_MD: string = 'md';
-
-  /**
-   * Breakpoint lg.
-   */
-  public static readonly BREAK_POINT_LG: string = 'lg';
 }
\ No newline at end of file
diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index d75903d62c18a748e6938a039780d07a0c8c654a..6335521e2b5845a587af32e2f172e2bbbfda7737 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -18,8 +18,9 @@ import { hilog } from '@kit.PerformanceAnalysisKit';
 import { display, window } from '@kit.ArkUI';
 import { BusinessError } from '@kit.BasicServicesKit';
 
+const TAG = '[EntryAbility]';
+
 export default class EntryAbility extends UIAbility {
-  private windowObj?: window.Window;
   private curBp: string = '';
 
   private updateBreakpoint(windowWidth: number): void {
@@ -38,18 +39,19 @@ export default class EntryAbility extends UIAbility {
         AppStorage.setOrCreate('currentBreakpoint', this.curBp);
       }
     } catch (error) {
-      hilog.error(0x0000, 'EntryAbility', 'updateBreakpoint catch err:', JSON.stringify(error) ?? '');
-    }
+      const err = error as BusinessError;
+      hilog.error(0x000, TAG, `updateBreakpoint catch err: code: ${err.code}, message: ${err.message}`);
+    };
   }
 
   onCreate(): void {
-    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');
+    hilog.info(0x0000, TAG, '%{public}s', 'Ability onCreate');
     AppStorage.setOrCreate('systemColorMode', this.context.config.colorMode);
     this.context.getApplicationContext().setColorMode(ConfigurationConstant.ColorMode.COLOR_MODE_NOT_SET);
   }
 
   onDestroy(): void {
-    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onDestroy');
+    hilog.info(0x0000, TAG, '%{public}s', 'Ability onDestroy');
   }
 
   onConfigurationUpdate(newConfig: Configuration): void {
@@ -63,35 +65,39 @@ export default class EntryAbility extends UIAbility {
 
   onWindowStageCreate(windowStage: window.WindowStage): void {
     // Main window is created, set main page for this ability.
-    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');
+    hilog.info(0x0000, TAG, '%{public}s', 'Ability onWindowStageCreate');
 
     windowStage.getMainWindow().then((windowObj: window.Window) => {
-      this.windowObj = windowObj;
-      this.updateBreakpoint(windowObj.getWindowProperties().windowRect.width);
-      windowObj.on('windowSizeChange', (windowSize) => {
-        this.updateBreakpoint(windowSize.width);
-      })
+      try {
+        this.updateBreakpoint(windowObj.getWindowProperties().windowRect.width);
+        windowObj.on('windowSizeChange', (windowSize) => {
+          this.updateBreakpoint(windowSize.width);
+        })
+      } catch (error) {
+        const err = error as BusinessError;
+        hilog.error(0x000, TAG, `onWindowStageCreate catch err, code: ${err.code}, message: ${err.message}`);
+      }
     });
 
     windowStage.loadContent('pages/Index', (err) => {
       if (err.code) {
-        hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
+        hilog.error(0x0000, TAG, `Failed to load the content, err code: ${err.code}, message: ${err.message}`);
         return;
       }
-      hilog.info(0x0000, 'testTag', 'Succeeded in loading the content.');
+      hilog.info(0x0000, TAG, 'Succeeded in loading the content.');
       let windowClass: window.Window = windowStage.getMainWindowSync();
       let isLayoutFullScreen = true;
       windowClass.setWindowLayoutFullScreen(isLayoutFullScreen).then(() => {
-        hilog.info(0x0000, 'testTag', 'Succeeded in setting the window layout to full-screen mode.');
+        hilog.info(0x0000, TAG, 'Succeeded in setting the window layout to full-screen mode.');
       }).catch((err: BusinessError) => {
-        hilog.error(0x0000, 'testTag',
-          '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, err code: ${err.code}, message: ${err.message}`);
       });
     });
     let windowClass: window.Window | undefined = undefined;
     window.getLastWindow(this.context, (err: BusinessError, data) => {
       if (err.code) {
-        hilog.error(0x0000, 'testTag', 'Failed to obtain top window. Cause:' + JSON.stringify(err));
+        hilog.error(0x0000, TAG, `Failed to obtain top window, err code: ${err.code}, message: ${err.message}`);
         return;
       }
       windowClass = data;
@@ -105,8 +111,9 @@ export default class EntryAbility extends UIAbility {
         let avoidArea: window.AvoidArea = windowClass.getWindowAvoidArea(type);
         statusHeight = avoidArea.topRect.height;
         bottomHeight = avoidArea.bottomRect.height
-      } catch (exception) {
-        hilog.error(0x0000, 'testTag', 'Failed to obtain the area. Cause:' + JSON.stringify(exception));
+      } catch (error) {
+        const err = error as BusinessError;
+        hilog.error(0x0000, TAG, `Failed to obtain the area, err code: ${err.code}, message: ${err.message}`);
       }
       AppStorage.setOrCreate('statusHeight', statusHeight);
       AppStorage.setOrCreate('bottomHeight', bottomHeight);
@@ -116,10 +123,11 @@ export default class EntryAbility extends UIAbility {
         displayClass = display.getDefaultDisplaySync();
         screenHeight = displayClass.height;
       } catch (exception) {
-        hilog.error(0x0000, 'testTag',
-          'Failed to obtain the default display object. Code: ' + JSON.stringify(exception));
+        const e = exception as BusinessError;
+        hilog.error(0x0000, TAG,
+          `Failed to obtain the default display object, err code: ${e.code}, message: ${e.message}`);
       }
-      hilog.info(0x0000, 'testTag',
+      hilog.info(0x0000, TAG,
         'Succeeded to obtain the default display object. Code: ' + JSON.stringify(displayClass));
       AppStorage.setOrCreate('screenHeight', screenHeight);
     });
@@ -127,16 +135,16 @@ export default class EntryAbility extends UIAbility {
 
   onWindowStageDestroy(): void {
     // Main window is destroyed, release UI related resources
-    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageDestroy');
+    hilog.info(0x0000, TAG, '%{public}s', 'Ability onWindowStageDestroy');
   }
 
   onForeground(): void {
     // Ability has brought to foreground
-    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onForeground');
+    hilog.info(0x0000, TAG, '%{public}s', 'Ability onForeground');
   }
 
   onBackground(): void {
     // Ability has back to background
-    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onBackground');
+    hilog.info(0x0000, TAG, '%{public}s', 'Ability onBackground');
   }
 }
\ No newline at end of file
diff --git a/entry/src/main/ets/pages/Index.ets b/entry/src/main/ets/pages/Index.ets
index 05d8cb4e22d2674cf451bca4d1850f9939ef8f79..aab8950597c77fdc4e7a91530401be6a74f2ea19 100644
--- a/entry/src/main/ets/pages/Index.ets
+++ b/entry/src/main/ets/pages/Index.ets
@@ -152,7 +152,6 @@ struct Index {
         .width(StackConstant.FULL_PERCENT)
         .margin({ top: $r('app.integer.margin_search_view') })
       }
-      //.padding({ left: $r('app.integer.scroll_padding'), right: $r('app.integer.scroll_padding') })
       .width(StackConstant.FULL_PERCENT)
       .height(StackConstant.FULL_PERCENT)
       .scrollBar(BarState.Off)
diff --git a/entry/src/main/ets/view/ProductList.ets b/entry/src/main/ets/view/ProductList.ets
index a5618692430a32b70b761c0fd9e810104c08ce36..756107dafef0170528c7ec9fa8db67346f7ac694 100644
--- a/entry/src/main/ets/view/ProductList.ets
+++ b/entry/src/main/ets/view/ProductList.ets
@@ -18,6 +18,8 @@ import { ProductDataModel } from '../viewmodel/IconViewModel';
 import { ProductDataSource } from '../viewmodel/DataSource';
 import { StackConstant } from '../constant/StackConstant';
 import { PRODUCT_DATA } from '../model/IconModel';
+import { hilog } from '@kit.PerformanceAnalysisKit';
+import { BusinessError } from '@kit.BasicServicesKit';
 
 @Component
 export struct ProductList {
@@ -73,7 +75,12 @@ export struct ProductList {
     .backgroundColor($r('sys.color.comp_background_primary'))
     .borderRadius($r('app.integer.water_flow_column_border_radius'))
     .onClick(() => {
-      promptAction.showToast({ message: $r('app.string.component_stack_other_function') });
+      try {
+        promptAction.showToast({ message: $r('app.string.component_stack_other_function') });
+      } catch (error) {
+        const err = error as BusinessError;
+        hilog.error(0x000, 'ProductList', `showToast catch error, code: ${err.code}, message: ${err.message}`);
+      }
     });
   }