harmony 鸿蒙@ohos.bluetooth.hid (Bluetooth HID Module) (System API)

2025-06-12
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@ohos.bluetooth.hid (Bluetooth HID Module) (System API)

The hid module provides APIs for using the Bluetooth Human Interface Device Profile (HID).

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. This topic describes only the system APIs provided by the module. For details about its public APIs, see @ohos.bluetooth.hid (Bluetooth HID Module).

Modules to Import

import { hid } from '@kit.ConnectivityKit';

HidHostProfile

Before using the HidHostProfile APIs, you need to create an instance of this class by using createHidHostProfile().

connect

connect(deviceId: string): void

Connects to the HidHost service of a device.

System API: This is a system API.

Required permissions: ohos.permission.ACCESS_BLUETOOTH and ohos.permission.MANAGE_BLUETOOTH

System capability: SystemCapability.Communication.Bluetooth.Core

Parameters

Name	Type	Mandatory	Description
deviceId	string	Yes	Address of the remote device.

Error codes

For details about the error codes, see Universal Error Codes and Bluetooth Error Codes.

ID	Error Message
201	Permission denied.
202	Non-system applications are not allowed to use system APIs.
401	Invalid parameter. Possible causes: 1. Mandatory parameters are left unspecified. 2. Incorrect parameter types. 3. Parameter verification failed.
801	Capability not supported.
2900001	Service stopped.
2900003	Bluetooth disabled.
2900004	Profile not supported.
2900099	Operation failed.

Example

import { AsyncCallback, BusinessError } from '@kit.BasicServicesKit';
try {
    let hidHostProfile = hid.createHidHostProfile();
    hidHostProfile.connect('XX:XX:XX:XX:XX:XX');
} catch (err) {
    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
}

disconnect

disconnect(deviceId: string): void

Disconnects from the HidHost service of a device.