DriverExtensionContext
The DriverExtensionContext module provides the context of DriverExtensionAbility. It inherits from ExtensionContext.
The DriverExtensionContext module provides the operations that need to be actively initiated in the DriverExtensionAbility implementation.
NOTE
- The initial APIs of this module are supported since API version 10. 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
import { common } from '@kit.AbilityKit';
How to Use
Before using DriverExtensionContext, you need to obtain it through a DriverExtensionAbility child class instance.
import { DriverExtensionAbility, DriverExtensionContext } from '@kit.DriverDevelopmentKit';
let context : DriverExtensionContext|undefined;
class EntryAbility extends DriverExtensionAbility {
onInit() {
context = this.context; // Obtain DriverExtensionContext.
}
}
DriverExtensionContext.updateDriverState
updateDriverState(): void;
Updates the driver state. This interface is reserved and does not provide specific functionality currently.
System capability: SystemCapability.Driver.ExternalDevice
Example
if (context != null) {
context.updateDriverState();
}