# @ohos.app.ability.PhotoEditorExtensionAbility (Image Editing)
The PhotoEditorExtensionAbility, which inherits from the [ExtensionAbility](js-apis-app-ability-extensionAbility.md), enables your application to provide an image editing page for applications that do not have the image editing capability. After an application uses [startAbilityByType](js-apis-inner-application-uiAbilityContext.md#uiabilitycontextstartability) to start a vertical domain panel with available image editing applications that have implemented the PhotoEditorExtensionAbility, the user can select one of the applications on the panel to display an image editing page.
> **NOTE**
> 
> The initial APIs of this module are supported since API version 12. 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 { PhotoEditorExtensionAbility } from '@kit.AbilityKit';
```
## Properties
**System capability**: SystemCapability.Ability.AppExtension.PhotoEditorExtension
|  Name|Type  |Read Only  |Optional  |Description  |
| ------------ | ------------ | ------------ | ------------ | ------------ |
|  context | [PhotoEditorExtensionContext](./js-apis-app-ability-photoEditorExtensionContext.md)  | No | Yes | Context. |

## PhotoEditorExtensionAbility.onCreate
onCreate(): void

Called to initialize the service logic when a PhotoEditorExtensionAbility is created.

**Model restriction**: This API can be used only in the stage model.

**System capability**: SystemCapability.Ability.AppExtension.PhotoEditorExtension

**Example**

```ts
import { PhotoEditorExtensionAbility } from '@kit.AbilityKit';

const TAG: string = '[testTag] ExamplePhotoEditorAbility';

export default class ExamplePhotoEditorAbility extends PhotoEditorExtensionAbility {
  onCreate() {
    console.info(TAG, `onCreate`);
  }
}

```
## PhotoEditorExtensionAbility.onStartContentEditing
onStartContentEditing(uri: string, want: Want, session: UIExtensionContentSession): void

Called when a **UIExtensionContentSession** instance is created for this PhotoEditorExtensionAbility. The instance can be used to read the original image and load a page.

**Model restriction**: This API can be used only in the stage model.

**System capability**: SystemCapability.Ability.AppExtension.PhotoEditorExtension

**Parameters**
| Name|  Type| Mandatory | Description |
| ------------ | ------------ | ------------ | ------------ |
|  uri |  string |  Yes| [URI](../apis-core-file-kit/js-apis-file-fileuri.md) of the image to edit. The format is file://\<bundleName>/\<sandboxPath>. |
| want  | [Want](./js-apis-app-ability-want.md)  | Yes | Want information, including the ability name and bundle name. |
|  session |  [UIExtensionContentSession](./js-apis-app-ability-uiExtensionContentSession.md) | Yes |  UI content information related to the PhotoEditorExtensionAbility.|


**Example**

```ts
import { PhotoEditorExtensionAbility, Want, UIExtensionContentSession } from '@kit.AbilityKit';

const TAG: string = '[testTag] ExamplePhotoEditorAbility';

export default class ExamplePhotoEditorAbility extends PhotoEditorExtensionAbility {
  onStartContentEditing(uri: string, want: Want, session: UIExtensionContentSession) {
    console.info(TAG, `onStartContentEditing want: ${JSON.stringify(want)}, uri: ${uri}`);
  }
}

```
## PhotoEditorExtensionAbility.onForeground
onForeground(): void

Called when this PhotoEditorExtensionAbility is switched from the background to the foreground.

**Model restriction**: This API can be used only in the stage model.

**System capability**: SystemCapability.Ability.AbilityRuntime.AbilityCore

**Example**

```ts
import { PhotoEditorExtensionAbility } from '@kit.AbilityKit';

const TAG: string = '[testTag] ExamplePhotoEditorAbility';

export default class ExamplePhotoEditorAbility extends PhotoEditorExtensionAbility {
  onForeground() {
    console.info(TAG, `onForeground`);
  }
}

```
## PhotoEditorExtensionAbility.onBackground
onBackground(): void

Called when this PhotoEditorExtensionAbility is switched from the foreground to the background.

**Model restriction**: This API can be used only in the stage model.

**System capability**: SystemCapability.Ability.AbilityRuntime.AbilityCore

**Example**

```ts
import { PhotoEditorExtensionAbility } from '@kit.AbilityKit';

const TAG: string = '[testTag] ExamplePhotoEditorAbility';

export default class ExamplePhotoEditorAbility extends PhotoEditorExtensionAbility {
  onBackground() {
    console.info(TAG, `onBackground`);
  }
}

```
## PhotoEditorExtensionAbility.onDestroy
onDestroy(): void | Promise\<void>

Called to clear resources when this PhotoEditorExtensionAbility is destroyed.

**Model restriction**: This API can be used only in the stage model.

**System capability**: SystemCapability.Ability.AppExtension.PhotoEditorExtension

**Return value**
|  Type|Description  |
| ------------ | ------------ |
|  Promise\<void> |  Promise that returns no value.|

**Example**

```ts
import { PhotoEditorExtensionAbility } from '@kit.AbilityKit';

const TAG: string = '[testTag] ExamplePhotoEditorAbility';

export default class ExamplePhotoEditorAbility extends PhotoEditorExtensionAbility {
  onDestroy() {
    console.info(TAG, `onDestroy`);
  }
}

```