低功耗蓝牙连接问题

import { connection } from '@kit.ConnectivityKit';
import { BusinessError } from '@kit.BasicServicesKit';

@Entry
@Component
struct connectAllowedProfiles {
  connectAllowedProfiles() {
    // 发起蓝牙配对请求，此处的mac需要提前获取
    connection.pairDevice('xx.xx.xx.xx', (err: BusinessError) => {
      console.info(`pairDevice, device name err:${err}`);
    });

    // 订阅蓝牙配对状态变化事件
    connection.on('bondStateChange', (data: connection.BondStateParam) => {
      // 蓝牙已配对
      if (data.state === connection.BondState.BOND_STATE_BONDED) {
        // 调用getRemoteProfileUuids接口获取对端蓝牙支持的Profile类型
        connection.getRemoteProfileUuids(data.deviceId,
          (err: BusinessError, dataArray: Array<connection.ProfileUuids>) => {
            console.error(`getRemoteProfileUuids errCode: ${(err as BusinessError).code}, errMessage: ${(err as BusinessError).message}, dataArray: ${dataArray}`);
            // 当dataArray中支持类型包含A2DP、HFP和HID其中的一种，可调用connectAllowedProfiles接口发起连接。
            connection.connectAllowedProfiles(data.deviceId, (err: BusinessError) => {
              if (err) {
                console.error(`connectAllowedProfiles errCode: ${(err as BusinessError).code}, errMessage: ${(err as BusinessError).message}`);
                return;
              }
              console.info('connectAllowedProfiles');
            });
          });
      }
    });
  }

  build() {
    Column() {
      Button('connect Allowed Profiles')
        .onClick(() => {
          // 创建蓝牙配对状态变化监听，发起蓝牙配对，连接蓝牙
          this.connectAllowedProfiles();
        });
    };
  }
}