1# @ohos.InputMethodExtensionContext (InputMethodExtensionContext) 2 3The **InputMethodExtensionContext** module, inherited from **ExtensionContext**, provides context for **InputMethodExtension** abilities. 4 5You can use the APIs of this module to start, terminate, connect, and disconnect abilities. 6 7> **NOTE** 8> 9>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. 10 11## Modules to Import 12 13``` 14import InputMethodExtensionContext from '@ohos.InputMethodExtensionContext'; 15``` 16 17## Usage 18 19Before using the **InputMethodExtensionContext** module, you must define a child class that inherits from **InputMethodExtensionAbility**. 20 21```js 22import InputMethodExtensionAbility from '@ohos.InputMethodExtensionAbility'; 23class EntryAbility extends InputMethodExtensionAbility { 24 onCreate() { 25 let context = this.context; 26 } 27} 28``` 29 30## InputMethodExtensionContext.destroy 31 32destroy(callback: AsyncCallback\<void>): void 33 34Terminates this ability. This API uses an asynchronous callback to return the result. 35 36**System capability**: SystemCapability.MiscServices.InputMethodFramework 37 38**Parameters** 39 40| Name | Type | Mandatory| Description | 41| -------- | -------------------- | ---- | ------------------------------------------------------------ | 42| callback | AsyncCallback\<void> | Yes | Callback used to return the result. If the operation is successful, **err** is **undefined**. Otherwise, **err** is an error object.| 43 44**Example** 45 46```js 47this.context.destroy(() => { 48 console.log('Succeeded in destroying context.'); 49}); 50``` 51 52## InputMethodExtensionContext.destroy 53 54destroy(): Promise\<void>; 55 56Terminates this ability. This API uses a promise to return the result. 57 58**System capability**: SystemCapability.MiscServices.InputMethodFramework 59 60**Return value** 61 62| Type| Description| 63| -------- | -------- | 64| Promise\<void>; | Promise that returns no value.| 65 66**Example** 67 68```js 69this.context.destroy().then(() => { 70 console.log('Succeed in destroying context.'); 71}); 72``` 73