harmony 鸿蒙@ohos.bluetooth.hfp (Bluetooth HFP Module) (System API)

2025-06-12
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@ohos.bluetooth.hfp (Bluetooth HFP Module) (System API)

The hfp module provides APIs for using the Bluetooth Hands-Free Profile (HFP).

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.hfp (Bluetooth HFP Module).

Modules to Import

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

connect

connect(deviceId: string): void

Connects to the HFP service of a device.

System API: This is a system API.

Required permissions: ohos.permission.ACCESS_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 hfpAg = hfp.createHfpAgProfile();
    hfpAg.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 the HFP service of a device.