diff --git a/api/@ohos.app.ability.AbilityLifecycleCallback.d.ts b/api/@ohos.app.ability.AbilityLifecycleCallback.d.ts
index d7351fe2290935f0f2316d9c916208baf0251ecb..efb952ea53974dcd151acb146229c9a5483a3e6c 100644
--- a/api/@ohos.app.ability.AbilityLifecycleCallback.d.ts
+++ b/api/@ohos.app.ability.AbilityLifecycleCallback.d.ts
@@ -22,6 +22,7 @@ import UIAbility from './@ohos.app.ability.UIAbility';
 import dataAbility from './@ohos.data.dataAbility';
 import window from './@ohos.window';
 
+/*** if arkts 1.1 */
 /**
  * The ability lifecycle callback.
  *
@@ -47,6 +48,21 @@ import window from './@ohos.window';
  * @since 11
  */
 export default class AbilityLifecycleCallback {
+/*** endif */
+
+/*** if arkts 1.2 */
+/**
+ * The ability lifecycle callback.
+ *
+ * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
+ * @StageModelOnly
+ * @crossplatform
+ * @atomicservice
+ * @since 20
+ * @arkts 1.2
+ */
+declare interface AbilityLifecycleCallback {
+/*** endif */
   /**
    * Called back when an ability is started for initialization.
    *
@@ -72,7 +88,8 @@ export default class AbilityLifecycleCallback {
    * @StageModelOnly
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   onAbilityCreate(ability: UIAbility): void;
 
@@ -115,7 +132,8 @@ export default class AbilityLifecycleCallback {
    * @StageModelOnly
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   onWindowStageCreate(ability: UIAbility, windowStage: window.WindowStage): void;
 
@@ -223,7 +241,8 @@ export default class AbilityLifecycleCallback {
    * @StageModelOnly
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   onWindowStageDestroy(ability: UIAbility, windowStage: window.WindowStage): void;
 
@@ -264,7 +283,8 @@ export default class AbilityLifecycleCallback {
    * @StageModelOnly
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   onAbilityDestroy(ability: UIAbility): void;
 
@@ -304,7 +324,8 @@ export default class AbilityLifecycleCallback {
    * @StageModelOnly
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   onAbilityForeground(ability: UIAbility): void;
 
@@ -344,7 +365,8 @@ export default class AbilityLifecycleCallback {
    * @StageModelOnly
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   onAbilityBackground(ability: UIAbility): void;
 
@@ -435,3 +457,7 @@ export default class AbilityLifecycleCallback {
    */
   onAbilitySaveState?(ability: UIAbility): void;
 }
+
+/*** if arkts 1.2 */
+export default AbilityLifecycleCallback;
+/*** endif */
\ No newline at end of file
diff --git a/api/application/ApplicationContext.d.ts b/api/application/ApplicationContext.d.ts
index cd4f9a46f16832fec7649af3a2b9c6d5aa2dc2f9..f60677120b4c57f35583a688f898d0883a7a0723 100644
--- a/api/application/ApplicationContext.d.ts
+++ b/api/application/ApplicationContext.d.ts
@@ -25,9 +25,7 @@ import type ConfigurationConstant from '../@ohos.app.ability.ConfigurationConsta
 import Want from '../@ohos.app.ability.Want';
 import EnvironmentCallback from '../@ohos.app.ability.EnvironmentCallback';
 import type ApplicationStateChangeCallback from '../@ohos.app.ability.ApplicationStateChangeCallback';
-/*** if arkts 1.1 */
 import AbilityLifecycleCallback from '../@ohos.app.ability.AbilityLifecycleCallback';
-/*** endif */
 
 /**
  * The context of an application. It allows access to application-specific resources.
@@ -92,16 +90,17 @@ declare class ApplicationContext extends Context {
    *
    * @param { 'abilityLifecycle' } type - Event type.
    * @param { AbilityLifecycleCallback } callback - Callback used to return the ID of the registered listener.
-   * @returns { number } Returns the number code of the callback.
+   * @returns { int } Returns the number code of the callback.
    * @throws { BusinessError } 401 - Parameter error. Possible causes: 1.Mandatory parameters are left unspecified.
    * 2.Incorrect parameter types.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  on(type: 'abilityLifecycle', callback: AbilityLifecycleCallback): number;
+  on(type: 'abilityLifecycle', callback: AbilityLifecycleCallback): int;
 
   /**
    * Unregister ability lifecycle callback.
@@ -135,7 +134,7 @@ declare class ApplicationContext extends Context {
    * </p>
    *
    * @param { 'abilityLifecycle' } type - Event type.
-   * @param { number } callbackId - ID of the listener to unregister.
+   * @param { int } callbackId - ID of the listener to unregister.
    * @param { AsyncCallback<void> } callback - Callback used to return the result. If the deregistration is successful,
    * err is undefined. Otherwise, err is an error object.
    * @throws { BusinessError } 401 - Parameter error. Possible causes: 1.Mandatory parameters are left unspecified.
@@ -144,9 +143,10 @@ declare class ApplicationContext extends Context {
    * @stagemodelonly
    * @crossplatform
    * @atomicservice
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  off(type: 'abilityLifecycle', callbackId: number, callback: AsyncCallback<void>): void;
+  off(type: 'abilityLifecycle', callbackId: int, callback: AsyncCallback<void>): void;
 
   /**
    * Unregister ability lifecycle callback.
@@ -180,7 +180,7 @@ declare class ApplicationContext extends Context {
    * </p>
    *
    * @param { 'abilityLifecycle' } type - Event type.
-   * @param { number } callbackId - ID of the listener to unregister.
+   * @param { int } callbackId - ID of the listener to unregister.
    * @returns { Promise<void> } Promise that returns no value.
    * @throws { BusinessError } 401 - Parameter error. Possible causes: 1.Mandatory parameters are left unspecified.
    * 2.Incorrect parameter types.
@@ -188,9 +188,10 @@ declare class ApplicationContext extends Context {
    * @stagemodelonly
    * @crossplatform
    * @atomicservice
-   * @since 12
+   * @since arkts {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
-  off(type: 'abilityLifecycle', callbackId: number): Promise<void>;
+  off(type: 'abilityLifecycle', callbackId: int): Promise<void>;
 
   /**
    * Register environment callback.