diff --git a/ArkUI/entry/src/main/ets/entryability/EntryAbilityMonitorTheFrontAndBack.ets b/ArkUI/entry/src/main/ets/entryability/EntryAbilityMonitorTheFrontAndBack.ets
index 97ba92d254d392ef4d523cf938bc74c1c35986ff..9ed5d5d0c92ef155022ca31476ba4a69d6dd0c98 100644
--- a/ArkUI/entry/src/main/ets/entryability/EntryAbilityMonitorTheFrontAndBack.ets
+++ b/ArkUI/entry/src/main/ets/entryability/EntryAbilityMonitorTheFrontAndBack.ets
@@ -27,7 +27,7 @@ const DOMAIN = 0x0000;
 // EntryAbility中
 export default class EntryAbility extends UIAbility {
   onWindowStageCreate(windowStage: window.WindowStage): void {
-    AppStorage.setOrCreate<boolean>('isOnForeground', true);
+    AppStorage.setOrCreate<boolean>('isOnForeground', undefined);
   }
 
   onForeground(): void {
diff --git a/ArkUI/entry/src/main/ets/pages/ListSideRebound.ets b/ArkUI/entry/src/main/ets/pages/ListSideRebound.ets
new file mode 100644
index 0000000000000000000000000000000000000000..eda4fc7860767482e2cb1fcdeb9e49166c7c8fa1
--- /dev/null
+++ b/ArkUI/entry/src/main/ets/pages/ListSideRebound.ets
@@ -0,0 +1,62 @@
+/*
+* Copyright (c) 2024 Huawei Device Co., Ltd.
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/*
+* FAQ:如何实现Scroll、List单边回弹效果
+*/
+
+// [Start list_side_rebound]
+// Single side rebound effect of List component
+@Entry
+@Component
+struct ListSideRebound {
+  @State isTop: boolean = true;
+  private arr: number[] = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+
+  build() {
+    Column() {
+      List({ space: 20, initialIndex: 0 }) {
+        ForEach(this.arr, (item: number) => {
+          ListItem() {
+            Text('' + item)
+              .width('100%')
+              .height(100)
+              .fontSize(16)
+              .textAlign(TextAlign.Center)
+              .borderRadius(10)
+              .backgroundColor(0xFFFFFF)
+          }
+        }, (item: string) => item)
+      }
+      .listDirection(Axis.Vertical) // Arrangement direction
+      .scrollBar(BarState.Off)
+      .friction(0.6)
+      .edgeEffect(this.isTop ? EdgeEffect.Spring : EdgeEffect.None)
+      .onScrollIndex((firstIndex: number) => {
+        if (firstIndex === 0) {
+          this.isTop = true;
+        } else {
+          this.isTop = false;
+        }
+      })
+      .width('90%')
+    }
+    .width('100%')
+    .height('100%')
+    .backgroundColor(0xDCDCDC)
+    .padding({ top: 5 })
+  }
+}
+// [End list_side_rebound]
\ No newline at end of file
diff --git a/ArkUI/entry/src/main/ets/pages/MockOnclick.ets b/ArkUI/entry/src/main/ets/pages/MockOnclick.ets
new file mode 100644
index 0000000000000000000000000000000000000000..bebb319e5068690b9b53aaffb85cce529dfd6898
--- /dev/null
+++ b/ArkUI/entry/src/main/ets/pages/MockOnclick.ets
@@ -0,0 +1,107 @@
+/*
+* Copyright (c) 2024 Huawei Device Co., Ltd.
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/*
+* FAQ:如何模拟点击事件?
+*/
+
+// [Start mock_onclick]
+import { NodeController, BuilderNode, FrameNode, UIContext } from '@kit.ArkUI';
+
+class Params {
+  text: string = 'this is a text';
+}
+
+@Builder
+function ButtonBuilder(params: Params) {
+  Column() {
+    Button(`button ` + params.text)
+      .backgroundColor(Color.Orange)
+      .width('100%')
+      .gesture(
+        TapGesture()
+          .onAction((event: GestureEvent) => {
+            console.info('TapGesture');
+          })
+      )
+  }
+  .width('100%')
+  .height(300)
+  .padding({
+    left: 16,
+    right: 16
+  })
+  .justifyContent(FlexAlign.Center)
+  .backgroundColor(Color.Gray)
+}
+
+class MyNodeController extends NodeController {
+  private rootNode: BuilderNode<[Params]> | null = null;
+  private wrapBuilder: WrappedBuilder<[Params]> = wrapBuilder(ButtonBuilder);
+
+  makeNode(uiContext: UIContext): FrameNode | null {
+    this.rootNode = new BuilderNode(uiContext);
+    this.rootNode.build(this.wrapBuilder, { text: 'this is a string' });
+    return this.rootNode.getFrameNode();
+  }
+
+  // Coordinate Conversion Example
+  postTouchEvent(event: TouchEvent, uiContext: UIContext): boolean {
+    if (this.rootNode == null) {
+      return false;
+    }
+    let node: FrameNode | null = this.rootNode.getFrameNode();
+    let offsetX: number | null | undefined = node?.getPositionToParent().x;
+    let offsetY: number | null | undefined = node?.getPositionToParent().y;
+
+    let changedTouchLen = event.changedTouches.length;
+    for (let i = 0; i < changedTouchLen; i++) {
+      if (offsetX != null && offsetY != null && offsetX != undefined && offsetY != undefined) {
+        event.changedTouches[i].x = uiContext.vp2px(offsetX + event.changedTouches[i].x);
+        event.changedTouches[i].y = uiContext.vp2px(offsetY + event.changedTouches[i].y);
+      }
+    }
+    let result = this.rootNode.postTouchEvent(event);
+    console.info('result:' + result);
+    return result;
+  }
+}
+
+@Entry
+@Component
+struct MyComponent {
+  private nodeController: MyNodeController = new MyNodeController();
+
+  build() {
+    Column() {
+      NodeContainer(this.nodeController)
+        .height(300)
+        .width('100%')
+
+      Column()
+        .width(500)
+        .height(300)
+        .backgroundColor('#0A59F7')
+        .onTouch((event) => {
+          if (event != undefined) {
+            let uiContext = this.getUIContext();
+            // Dispatch event events to the FrameNode created by the nodeController by touching them with fingers
+            this.nodeController.postTouchEvent(event, uiContext);
+          }
+        })
+    }
+  }
+}
+// [End mock_onclick]
\ No newline at end of file