@ohos.bluetooth.baseProfile (Bluetooth baseProfile Module)

The baseProfile module provides APIs for using basic Bluetooth profiles.

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 baseProfile from '@ohos.bluetooth.baseProfile';

StateChangeParam

Represents the profile state change parameters.

System capability: SystemCapability.Communication.Bluetooth.Core

baseProfile.getConnectedDevices

getConnectedDevices(): Array<string>

Obtains the connected devices.

Required permissions: ohos.permission.ACCESS_BLUETOOTH

System capability: SystemCapability.Communication.Bluetooth.Core

Return value

Error codes

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

Example

import { BusinessError } from '@ohos.base';
import a2dp from '@ohos.bluetooth.a2dp';
try {
    let a2dpSrc = a2dp.createA2dpSrcProfile();
    let retArray = a2dpSrc.getConnectedDevices();
} catch (err) {
    console.error("errCode:" + (err as BusinessError).code + ",errMessage:" + (err as BusinessError).message);
}

baseProfile.getConnectionState

getConnectionState(deviceId: string): ProfileConnectionState

Obtains the profile connection state of a device.

Required permissions: ohos.permission.ACCESS_BLUETOOTH

System capability: SystemCapability.Communication.Bluetooth.Core

Parameters

Return value

Error codes

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

Example

import { BusinessError } from '@ohos.base';
import a2dp from '@ohos.bluetooth.a2dp';
try {
    let a2dpSrc = a2dp.createA2dpSrcProfile();
    let ret = a2dpSrc.getConnectionState('XX:XX:XX:XX:XX:XX');
} catch (err) {
    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
}

baseProfile.on('connectionStateChange')

on(type: 'connectionStateChange', callback: Callback<StateChangeParam>): void

Subscribes to profile connection state changes.

Required permissions: ohos.permission.ACCESS_BLUETOOTH

System capability: SystemCapability.Communication.Bluetooth.Core

Parameters

Example

import { BusinessError } from '@ohos.base';
import a2dp from '@ohos.bluetooth.a2dp';
function onReceiveEvent(data: baseProfile.StateChangeParam) {
    console.info('a2dp state = '+ JSON.stringify(data));
}
try {
    let a2dpSrc = a2dp.createA2dpSrcProfile();
    a2dpSrc.on('connectionStateChange', onReceiveEvent);
} catch (err) {
    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
}

baseProfile.off('connectionStateChange')

off(type: 'connectionStateChange', callback?: Callback<StateChangeParam>): void

Unsubscribes from profile connection state changes.

Required permissions: ohos.permission.ACCESS_BLUETOOTH

System capability: SystemCapability.Communication.Bluetooth.Core

Parameters

Example

import { BusinessError } from '@ohos.base';
import a2dp from '@ohos.bluetooth.a2dp';
function onReceiveEvent(data: baseProfile.StateChangeParam) {
    console.info('a2dp state = '+ JSON.stringify(data));
}
try {
    let a2dpSrc = a2dp.createA2dpSrcProfile();
    a2dpSrc.on('connectionStateChange', onReceiveEvent);
    a2dpSrc.off('connectionStateChange', onReceiveEvent);
} catch (err) {
    console.error('errCode: ' + (err as BusinessError).code + ', errMessage: ' + (err as BusinessError).message);
}