RN蓝牙扫描设备连接问题

import React, {
    useRef, useEffect } from 'react';
import {
    View, Text, StyleSheet, Animated, PermissionsAndroid, Platform } from 'react-native';
import {
    TouchableOpacity } from 'react-native-gesture-handler';
import {
    BleManager } from 'react-native-ble-plx';
const manager = new BleManager();
export const test = () => {
   
  const scanXinHao =async () => {
   
    let permissions;