HarmonyOS 鸿蒙Next蓝牙权限怎么申请

问题: Error name:Error Error message:BussinessError 201: Permission denied. Error code:201 SourceCode: access.enableBluetooth(); ^ Stacktrace: at enableBluetooth (entry/src/main/ets/common/bluetooth/BluetoothUtil.ets:8:5) at aboutToAppear (entry/src/main/ets/view/home/VicinityLock.ets:28:5)  

代码如下:

import { access } from ‘@kit.ConnectivityKit’;
import { AsyncCallback, BusinessError } from ‘@kit.BasicServicesKit’;

export class BluetoothUtil {
// 开启蓝牙 
public enableBluetooth() {
access.enableBluetooth();
access.on(‘stateChange’, (data: access.BluetoothState) => {
let btStateMessage = ‘’;
switch (data) {
case 0:
btStateMessage += ‘STATE_OFF’;
break;
case 1:
btStateMessage += ‘STATE_TURNING_ON’;
break;
case 2:
btStateMessage += ‘STATE_ON’;
break;
case 3:
btStateMessage += ‘STATE_TURNING_OFF’;
break;
case 4:
btStateMessage += ‘STATE_BLE_TURNING_ON’;
break;
case 5:
btStateMessage += ‘STATE_BLE_ON’;
break;
case 6:
btStateMessage += ‘STATE_BLE_TURNING_OFF’;
break;
default:
btStateMessage += ‘unknown status’; break;
}
if (btStateMessage == ‘STATE_ON’) {
access.off(‘stateChange’);
}
console.info('bluetooth statues: ’ + btStateMessage);
})
}
// 关闭蓝牙 
public disableBluetooth() {
access.disableBluetooth();
access.on(‘stateChange’, (data: access.BluetoothState) => {
let btStateMessage = ‘’;
switch (data) {
case 0:
btStateMessage += ‘STATE_OFF’;
break;
case 1:
btStateMessage += ‘STATE_TURNING_ON’;
break;
case 2:
btStateMessage += ‘STATE_ON’;
break;
case 3:
btStateMessage += ‘STATE_TURNING_OFF’;
break;
case 4:
btStateMessage += ‘STATE_BLE_TURNING_ON’;
break;
case 5:
btStateMessage += ‘STATE_BLE_ON’;
break;
case 6:
btStateMessage += ‘STATE_BLE_TURNING_OFF’;
break;
default:
btStateMessage += ‘unknown status’; break;
}
if (btStateMessage == ‘STATE_OFF’) {
access.off(‘stateChange’);
}
console.info("bluetooth statues: " + btStateMessage);
})
}
}
export default new BluetoothUtil();