diff --git a/README.md b/README.md
index 2d24e319f05af089aa8c5bec9cc86f64c0249e11..89ce6611f5c5d3708ca7c0716723f9a449263272 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Web组件预览PDF文件
+# 基于Web组件实现预览PDF文件功能
 
 ### 介绍
 
diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index 29c0feade15478a40b571437bc2cb2b8d0ae227f..465cfb2560b47c9bab7c2523fba963554459c0ab 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-import { AbilityConstant, UIAbility, Want } from '@kit.AbilityKit';
+import { UIAbility } from '@kit.AbilityKit';
 import { BusinessError } from '@kit.BasicServicesKit';
 import { hilog } from '@kit.PerformanceAnalysisKit';
 import { window } from '@kit.ArkUI';
@@ -23,7 +23,7 @@ export default class EntryAbility extends UIAbility {
   windowClass: window.Window | undefined = undefined;
   isLayoutFullScreen = true;
 
-  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
+  onCreate(): void {
     hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');
   }
 
@@ -44,18 +44,18 @@ export default class EntryAbility extends UIAbility {
       }
       this.windowClass = data;
       try {
-        this.windowClass.setWindowLayoutFullScreen(this.isLayoutFullScreen, (err: BusinessError) => {
-          const errCode: number = err.code;
-          if (errCode) {
-            Logger.error('Failed to set the window layout to full-screen mode. Cause:' + JSON.stringify(err));
-            return;
-          }
+        let promise = this.windowClass.setWindowLayoutFullScreen(this.isLayoutFullScreen);
+        promise.then(() => {
           Logger.info('Succeeded in setting the window layout to full-screen mode.');
+        }).catch((err: BusinessError) => {
+          Logger.error('Failed to set the window layout to full-screen mode. Cause:' + JSON.stringify(err));
         });
       } catch (exception) {
         Logger.error('Failed to set the window layout to full-screen mode. Cause:' + JSON.stringify(exception));
       }
-      this.windowClass.setSpecificSystemBarEnabled('status', false);
+      if (canIUse('SystemCapability.Window.SessionManager')) {
+        this.windowClass.setSpecificSystemBarEnabled('status', false);
+      }
     })
 
     windowStage.loadContent('pages/Index', (err) => {