Update docs against 20353

Signed-off-by: wusongqing<wusongqing@huawei.com>

en/application-dev/reference/apis/js-apis-app-ability-applicationStateChangeCallback.md

+# @ohos.app.ability.ApplicationStateChangeCallback (ApplicationStateChangeCallback)
+
+The **ApplicationStateChangeCallback** module provides callbacks for the application context to listen for application foreground/background state changes.
+
+> **NOTE**
+>
+> The initial APIs of this module are supported since API version 10. Newly added APIs will be marked with a superscript to indicate their earliest API version. 
+> The APIs of this module can be used only in the stage model.
+
+## Modules to Import
+
+```ts
+import ApplicationStateChangeCallback from '@ohos.app.ability.ApplicationStateChangeCallback';
+```
+
+## ApplicationStateChangeCallback.onApplicationForeground
+
+onApplicationForeground(): void;
+
+Called when the application is switched from the background to the foreground.
+
+**System capability**: SystemCapability.Ability.AbilityRuntime.AbilityCore
+
+**Example**
+
+```ts
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+globalThis.applicationStateChangeCallback = {
+    onApplicationForeground() {
+        console.info('applicationStateChangeCallback onApplicationForeground');
+    }
+}
+
+export default class MyAbility extends UIAbility {
+    onCreate() {
+        console.log('MyAbility onCreate');
+        globalThis.applicationContext = this.context.getApplicationContext();
+        // 1. Obtain an applicationContext object.
+        let applicationContext = globalThis.applicationContext;
+        // 2. Use applicationContext.on() to subscribe to the 'applicationStateChange' event.
+        applicationContext.on('applicationStateChange', globalThis.ApplicationStateChangeCallback);
+    }
+    onDestroy() {
+        let applicationContext = globalThis.applicationContext;
+        // 3. Use applicationContext.off() to unsubscribe from the 'applicationStateChange' event.
+        applicationContext.off('applicationStateChange', globalThis.ApplicationStateChangeCallback);
+    }
+}
+```
+
+## ApplicationStateChangeCallback.onApplicationBackground
+
+onApplicationBackground(): void;
+
+Called when the application is switched from the foreground to the background.
+
+**System capability**: SystemCapability.Ability.AbilityRuntime.AbilityCore
+
+**Example**
+
+```ts
+import UIAbility from '@ohos.app.ability.UIAbility';
+
+globalThis.applicationStateChangeCallback = {
+    onApplicationBackground() {
+        console.info('applicationStateChangeCallback onApplicationBackground');
+    }
+}
+
+export default class MyAbility extends UIAbility {
+    onCreate() {
+        console.log('MyAbility onCreate');
+        globalThis.applicationContext = this.context.getApplicationContext();
+        // 1. Obtain an applicationContext object.
+        let applicationContext = globalThis.applicationContext;
+        // 2. Use applicationContext.on() to subscribe to the 'applicationStateChange' event.
+        applicationContext.on('applicationStateChange', globalThis.ApplicationStateChangeCallback);
+        console.log('Resgiter applicationStateChangeCallback');
+    }
+    onDestroy() {
+        let applicationContext = globalThis.applicationContext;
+        // 3. Use applicationContext.off() to unsubscribe from the 'applicationStateChange' event.
+        applicationContext.off('applicationStateChange', globalThis.ApplicationStateChangeCallback);
+    }
+}
+```

en/application-dev/reference/apis/js-apis-inner-application-applicationContext.md

@@ -87,7 +87,7 @@ export default class EntryAbility extends UIAbility {
         }
         // 1. Obtain applicationContext through the context attribute.
         let applicationContext = this.context.getApplicationContext();
-        // 2. Use applicationContext to register a listener for the ability lifecycle in the application.
+        // 2. Use applicationContext.on to subscribe to the 'abilityLifecycle' event.
         lifecycleId = applicationContext.on('abilityLifecycle', AbilityLifecycleCallback);
         console.log('registerAbilityLifecycleCallback lifecycleId: ${lifecycleId)}');
     }
@@ -205,7 +205,7 @@ export default class EntryAbility extends UIAbility {
         };
         // 1. Obtain an applicationContext object.
         let applicationContext = globalThis.applicationContext;
-        // 2. Use applicationContext to register a listener for system environment changes.
+        // 2. Use applicationContext.on() to subscribe to the 'environment' event.
         callbackId = applicationContext.on('environment', environmentCallback);
         console.log('registerEnvironmentCallback callbackId: ${callbackId}');
     }
@@ -314,7 +314,7 @@ export default class MyAbility extends UIAbility {
         globalThis.applicationContext = this.context.getApplicationContext();
         // 1. Obtain an applicationContext object.
         let applicationContext = globalThis.applicationContext;
-        // 2. Use applicationContext to subscribe to the 'applicationStateChange' event.
+        // 2. Use applicationContext.on() to subscribe to the 'applicationStateChange' event.
         applicationContext.on('applicationStateChange', globalThis.ApplicationStateChangeCallback);
         console.log('Resgiter applicationStateChangeCallback');
     }
@@ -334,7 +334,7 @@ Deregisters the listener for application foreground/background state changes bas
 | Name  | Type                    | Mandatory| Description                            |
 | -------- | ------------------------ | ---- | -------------------------------- |
 | type     | string | Yes  | Event type. The value is fixed at **'applicationStateChange'**, indicating that the application switches from the foreground to the background or vice versa.            |
-| callback | AsyncCallback\<void>     | No  | Callback that has been used for the registration|
+| callback | AsyncCallback\<void>     | No  | Callback that has been used for the registration.|
 
 **Example**
 
@@ -359,7 +359,7 @@ export default class EntryAbility extends UIAbility {
 
 ## ApplicationContext.off(type: 'applicationStateChange')<sup>10+</sup>
 
-off(type: 'applicationStateChange'): **void**;
+off(type: 'applicationStateChange', callback?: ApplicationStateChangeCallback):  **void**;
 
 Deregisters all the listeners for application foreground/background state changes.
 
@@ -370,6 +370,7 @@ Deregisters all the listeners for application foreground/background state change
 | Name| Type         | Mandatory| Description                |
 | ------ | ------------- | ---- | -------------------- |
 | type   | string | Yes  | Event type. The value is fixed at **'applicationStateChange'**, indicating that the application switches from the foreground to the background or vice versa.|
+| callback | [ApplicationStateChangeCallback](#js-apis-app-ability-applicationStateChangeCallback.md) | No  | Callback used to return the result.      |
 
 **Example**
 

en/application-dev/reference/apis/js-apis-inner-application-processInformation.md

@@ -38,3 +38,4 @@ appManager.getRunningProcessInformation((error, data) => {
 | uid | number | Yes| No| User ID.|
 | processName | string | Yes| No| Process name.|
 | bundleNames | Array<string> | Yes| No| Names of all running bundles in the process.|
+| state<sup>10+</sup> | [appManager.ProcessState](js-apis-app-ability-appManager.md#processstate)| Yes| No| Running status of the process.|