diff --git a/api/@internal/component/ets/alphabet_indexer.d.ts b/api/@internal/component/ets/alphabet_indexer.d.ts
index c8003ca0f0be75d294e08c124364542d15b80cf6..1ab96b346bd40cd7cf3e1ec0829a692eb6e49bbd 100644
--- a/api/@internal/component/ets/alphabet_indexer.d.ts
+++ b/api/@internal/component/ets/alphabet_indexer.d.ts
@@ -19,7 +19,7 @@
  */
 
 /*** if arkts 1.2 */
-import { CommonMethod, BlurStyle } from './common'
+import { CommonMethod, BlurStyle, Bindable } from './common'
 import { ResourceColor, Length, Position } from './units'
 import { Font } from './units'
 /*** endif */
@@ -180,10 +180,20 @@ interface AlphabetIndexerOptions {
    * @syscap SystemCapability.ArkUI.ArkUI.Full
    * @crossplatform
    * @atomicservice
-   * @since arkts {'1.1':'11','1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   selected: number;
+  /**
+   * ID of the selected item.
+   *
+   * @type { number | Bindable<number> }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  selected: number | Bindable<number>;
 }
 
 /**
@@ -905,10 +915,21 @@ declare class AlphabetIndexerAttribute extends CommonMethod<AlphabetIndexerAttri
    * @syscap SystemCapability.ArkUI.ArkUI.Full
    * @crossplatform
    * @atomicservice
-   * @since arkts {'1.1':'11','1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   selected(index: number): AlphabetIndexerAttribute;
+  /**
+   * Sets the selected index.
+   *
+   * @param { number | Bindable<number> } index
+   * @returns { AlphabetIndexerAttribute }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  selected(index: number | Bindable<number>): AlphabetIndexerAttribute;
 
   /**
    * Position of the pop-up windows, relative to the midpoint of the top border of the indexer bar.
diff --git a/api/@internal/component/ets/list_item.d.ts b/api/@internal/component/ets/list_item.d.ts
index e5149aa59394752370a561abfd186574be56dfe6..914f1fd993696cd8acf72f8115b0161625ab4c7f 100644
--- a/api/@internal/component/ets/list_item.d.ts
+++ b/api/@internal/component/ets/list_item.d.ts
@@ -19,7 +19,7 @@
  */
 
 /*** if arkts 1.2 */
-import { CommonMethod } from './common';
+import { CommonMethod, Bindable } from './common';
 import { CustomBuilder } from './builder'
 import { Length } from './units';
 import { ComponentContent } from '../ComponentContent'
@@ -814,11 +814,25 @@ declare class ListItemAttribute extends CommonMethod<ListItemAttribute> {
    * @crossplatform
    * @form
    * @atomicservice
-   * @since arkts {'1.1':'11','1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   selected(value: boolean): ListItemAttribute;
 
+  /**
+   * Called when judging whether it is selected.
+   * This parameter supports $$ for two-way binding of variables.
+   *
+   * @param { boolean | Bindable<boolean> } value - if the listItem is selected.
+   * @returns { ListItemAttribute } the attribute of the listItem.
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @form
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  selected(value: boolean | Bindable<boolean>): ListItemAttribute;
+
   /**
    * Sets the action item that appears when the list item slides in the cross axis direction of the list.
    *
diff --git a/api/@internal/component/ets/refresh.d.ts b/api/@internal/component/ets/refresh.d.ts
index 8cb9cfd8dfd5db1485528d64c210a12f8a4db1d7..567a72565b7e49db116392d5dc1785124367a98d 100644
--- a/api/@internal/component/ets/refresh.d.ts
+++ b/api/@internal/component/ets/refresh.d.ts
@@ -19,7 +19,7 @@
  */
 
 /*** if arkts 1.2 */
-import { Callback, Optional, CommonMethod } from './common'
+import { Callback, Optional, CommonMethod, Bindable } from './common'
 import { CustomBuilder } from './builder'
 import { ResourceStr } from './units'
 import { ComponentContent } from '../ComponentContent'
@@ -223,10 +223,21 @@ interface RefreshOptions {
    * @syscap SystemCapability.ArkUI.ArkUI.Full
    * @crossplatform
    * @atomicservice
-   * @since arkts {'1.1':'11','1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   refreshing: boolean;
+  /**
+   * Whether the current component is being refreshed.
+   * This parameter supports $$ for two-way binding of variables.
+   *
+   * @type { boolean | Bindable<boolean> }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  refreshing: boolean | Bindable<boolean>;
 
   /**
    * Distance to the top of the parent component from the component that
diff --git a/api/@internal/component/ets/swiper.d.ts b/api/@internal/component/ets/swiper.d.ts
index 66df0bdc03888c1441d379c21acd74a29cdab4c9..357f1d17c89f1e8a2d73ef6eb4fba973a1477b88 100644
--- a/api/@internal/component/ets/swiper.d.ts
+++ b/api/@internal/component/ets/swiper.d.ts
@@ -20,7 +20,7 @@
 
 /*** if arkts 1.2 */
 import { IndicatorComponentController } from './indicatorcomponent';
-import { CommonMethod, Callback, ICurve, Optional } from './common';
+import { CommonMethod, Callback, ICurve, Optional, Bindable } from './common';
 import { EdgeEffect, Curve, PageFlipMode } from './enums';
 import { Length, LengthMetrics, VoidCallback, ResourceColor, VP, Font } from './units';
 /*** endif */
@@ -1582,10 +1582,22 @@ declare class SwiperAttribute extends CommonMethod<SwiperAttribute> {
    * @crossplatform
    * @form
    * @atomicservice
-   * @since arkts {'1.1':'11','1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   index(value: number): SwiperAttribute;
+  /**
+   * Called when the index value of the displayed subcomponent is set in the container.
+   *
+   * @param { number | Bindable<number> } value
+   * @returns { SwiperAttribute }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @form
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  index(value: number | Bindable<number>): SwiperAttribute;
 
   /**
    * Called when setting whether the subcomponent plays automatically.
diff --git a/api/@internal/component/ets/tabs.d.ts b/api/@internal/component/ets/tabs.d.ts
index 015fabcf27c782646be3424015095de2fd3fa9d3..1e9092cc8002651a94729e8631205637e9833d35 100644
--- a/api/@internal/component/ets/tabs.d.ts
+++ b/api/@internal/component/ets/tabs.d.ts
@@ -19,7 +19,7 @@
  */
 
 /*** if arkts 1.2 */
-import { BackgroundBlurStyleOptions, BackgroundEffectOptions, BlurStyle, Callback, CommonMethod, Optional, TranslateOptions, DividerStyle } from './common';
+import { BackgroundBlurStyleOptions, BackgroundEffectOptions, BlurStyle, Callback, CommonMethod, Optional, TranslateOptions, DividerStyle, Bindable } from './common';
 import { EdgeEffect, PageFlipMode } from './enums';
 import { Dimension, Length, ResourceColor } from './units';
 import { CommonModifier } from "../CommonModifier";
@@ -537,10 +537,20 @@ declare interface TabsOptions {
    * @syscap SystemCapability.ArkUI.ArkUI.Full
    * @crossplatform
    * @atomicservice
-   * @since arkts {'1.1':'11','1.2':'20'}
-   * @arkts 1.1&1.2
+   * @since 11
    */
   index?: number;
+  /**
+   * Set the index of the currently displayed tab.
+   *
+   * @type { ?(number | Bindable<number>) }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  index?: number | Bindable<number>;
 
   /**
    * Set the Tabs controller.