Add doc (15817)

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/application-dev/reference/apis/Readme-EN.md

@@ -125,7 +125,20 @@
   - [@ohos.notification (Notification) (To Be Deprecated Soon)](js-apis-notification.md)
   - application
     - [EventHub](js-apis-inner-application-eventHub.md)
-
+  - commonEvent
+    - [CommonEventData](js-apis-inner-commonEvent-commonEventData.md)
+    - [CommonEventPublishData](js-apis-inner-commonEvent-commonEventPublishData.md)
+    - [CommonEventSubscriber](js-apis-inner-commonEvent-commonEventSubscriber.md)
+    - [CommonEventSubscribeInfo](js-apis-inner-commonEvent-commonEventSubscribeInfo.md)
+  - notification
+    - [NotificationActionButton](js-apis-inner-notification-notificationActionButton.md)
+    - [NotificationCommonDef](js-apis-inner-notification-notificationCommonDef.md)
+    - [NotificationContent](js-apis-inner-notification-notificationContent.md)
+    - [NotificationFlags](js-apis-inner-notification-notificationFlags.md)
+    - [NotificationRequest](js-apis-inner-notification-notificationRequest.md)
+    - [NotificationSlot](js-apis-inner-notification-notificationSlot.md)
+    - [NotificationTemplate](js-apis-inner-notification-notificationTemplate.md)
+    - [NotificationUserInput](js-apis-inner-notification-notificationUserInput.md)
 - Bundle Management 
   - [@ohos.bundle.appControl (appControl)](js-apis-appControl.md)
   - [@ohos.bundle.bundleManager (bundleManager)](js-apis-bundleManager.md)
@@ -156,8 +169,10 @@
   - [@ohos.curves (Interpolation Calculation)](js-apis-curve.md)
   - [@ohos.matrix4 (Matrix Transformation)](js-apis-matrix4.md)
   - [@ohos.mediaquery (Media Query)](js-apis-mediaquery.md)
+  - [@ohos.pluginComponent (PluginComponentManager)](js-apis-plugincomponent.md)
   - [@ohos.promptAction (Prompt)](js-apis-promptAction.md)
   - [@ohos.router (Page Routing)](js-apis-router.md)
+  - [@ohos.measure (Text Measurement)](js-apis-measure.md)
 
 - Graphics 
   - [@ohos.animation.windowAnimationManager (Window Animation Management)](js-apis-windowAnimationManager.md)
@@ -295,7 +310,7 @@
   - [console (Log)](js-apis-logs.md)
   - [Timer](js-apis-timer.md)
   - application
-    - [AccessibilityExtensionContext](js-apis-inner-application-accessibilityExtensionContext.md)
+    - [AccessibilityExtensionContext (Accessibility Extension Context)](js-apis-inner-application-accessibilityExtensionContext.md)
   - imf
     - [InputMethodCommon](js-apis-inputmethod-InputMethodCommon.md)
 

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

-# AccessibilityExtensionContext
+# AccessibilityExtensionContext (Accessibility Extension Context)
 
 The **AccessibilityExtensionContext** module, inherited from **ExtensionContext**, provides context for **Accessibility Extension** abilities.
 

en/application-dev/reference/apis/js-apis-measure.md

+# @ohos.measure (Text Measurement)
+
+The **measure** module provides APIs for measuring text metrics, such as text height and width.
+
+> **NOTE**
+>
+> The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
+
+
+## Modules to Import
+
+```
+import measure from '@ohos.measure'
+```
+
+## measure.measureText
+
+measureText(options: MeasureOptions): double
+
+Measures the width of the given single-line text.
+
+**System capability**: SystemCapability.ArkUI.ArkUI.Full
+
+**Parameters**
+
+| Name    | Type                             | Mandatory  | Description       |
+| ------- | ------------------------------- | ---- | --------- |
+| options | [MeasureOptions](#measureoptions) | Yes   | Information about the measured text.|
+
+**Return value**
+
+| Type         | Description      |
+| ------------  | --------- |
+| double        | Text width.<br>The unit is px.|
+
+
+**Example**
+
+```ts
+import measure from '@ohos.measure'
+@Entry
+@Component
+struct Index {
+  @State message: string = 'Hello World'
+  @State textWidth : number = measure.measureText({
+    textContent: "Hello word",
+    fontSize: '50px'
+  })
+  build() {
+    Row() {
+      Column() {
+        Text("The width of 'Hello World': " + this.textWidth)
+      }
+      .width('100%')
+    }
+    .height('100%')
+  }
+}
+```
+
+## MeasureOptions
+
+Provides attributes of the measured text.
+
+**System capability**: SystemCapability.ArkUI.ArkUI.Full
+
+| Name          | Type                                                                                               | Mandatory| Description                     |
+| -------------- | -------------------------------------------------------------------------------------------------- | ---- | ----------------------------------------------- |
+| textContent    | string                                                                                             | Yes  | Content of the measured text.                                 |
+| fontSize       | number \| string \| [Resource](../arkui-ts/ts-types.md#resource)               | No  | Font size of the measured text. If the value is of the number type, the unit fp is used.<br>Default value: **16fp**<br>**NOTE**<br>The value cannot be a percentage.   |
+| fontStyle      | number \| [FontStyle](../arkui-ts/ts-appendix-enums.md#fontstyle)                        | No  | Font style of the measured text.<br>Default value: **FontStyle.Normal**           |
+| fontWeight     | number \| string \| [FontWeight](../arkui-ts/ts-appendix-enums.md#fontweight)  | No  | Font width of the measured text. For the number type, the value ranges from 100 to 900, at an interval of 100. The default value is **400**. A larger value indicates a heavier font weight. The string type supports only the string of the number type, for example, **400**, **"bold"**, **"bolder"**, **"lighter"**, **"regular"**, and **"medium"**, which correspond to the enumerated values in **FontWeight**.<br>Default value: **FontWeight.Normal**|
+| fontFamily     | string \| [Resource](../arkui-ts/ts-types.md#resource)                                   | No  | Font family of the measured text. Default value: **'HarmonyOS Sans'**<br>Only the default font is supported.|
+| letterSpacing  | number \| string                                                                         | No  | Letter spacing of the measured text.|