# Activity

> Include an application entry which derives from the Activity class.

## Definition

* **Type:** Field
* **Namespace:** [UnityEditor](/engine/6000.5/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
Activity = 1
```

### Remarks

For more information about the Activity class, see [Activity](https://developer.android.com/reference/android/app/Activity).