1# @ohos.app.ability.contextConstant (ContextConstant) 2 3The **ContextConstant** module defines context-related enums. Currently, it defines only the enum of encryption levels. 4 5> **NOTE** 6> 7> 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. 8> 9> The APIs of this module can be used only in the stage model. 10 11## Modules to Import 12 13```ts 14import contextConstant from '@ohos.app.ability.contextConstant'; 15``` 16 17## ContextConstant.AreaMode 18 19You can obtain the value of this constant by calling the **ContextConstant.AreaMode** API. 20 21**System capability**: SystemCapability.Ability.AbilityRuntime.Core 22 23| Name| Value| Description| 24| -------- | -------- | -------- | 25| EL1 | 0 | Device-level encryption. Directories with this encryption level are accessible after the device is powered on. | 26| EL2 | 1 | User-level encryption. Directories with this encryption level are accessible only after the device is powered on and the password is entered (for the first time). | 27