harmony 鸿蒙@ohos.bluetooth.hid (Bluetooth hid Module)

2023-10-30
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@ohos.bluetooth.hid (Bluetooth hid Module)

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.

Modules to Import

import hid from '@ohos.bluetooth.hid';

hid.createHidHostProfile

createHidHostProfile(): HidHostProfile

Creates a HidHostProfile instance.

System capability: SystemCapability.Communication.Bluetooth.Core

Return value

Type	Description
HidHostProfile	HidHostProfile instance created.

Example

import { BusinessError } from '@ohos.base';
try {
    let hidHostProfile = hid.createHidHostProfile();
    console.info('hidHost success');
} catch (err) {
    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
}

HidHostProfile

Before using any API of HidHostProfile, 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 Bluetooth Error Codes.

ID	Error Message
2900001	Service stopped.
2900003	Bluetooth switch is off.
2900004	Profile is not supported.
2900099	Operation failed.

Example

import { BusinessError } from '@ohos.base';
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.

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 Bluetooth Error Codes.

ID	Error Message
2900001	Service stopped.
2900003	Bluetooth switch is off.
2900004	Profile is not supported.
2900099	Operation failed.

Example

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