在react-native中，在useEffect之前获取用户位置

import { PermissionsAndroid, Platform } from 'react-native';
import Geolocation from 'react-native-geolocation-service';

const requestLocationPermission = async () => {
  if (Platform.OS === 'android') {
    try {
      const granted = await PermissionsAndroid.request(
        PermissionsAndroid.PERMISSIONS.ACCESS_FINE_LOCATION,
        {
          title: 'Location Permission',
          message: 'This app needs access to your location.',
        }
      );
      if (granted === PermissionsAndroid.RESULTS.GRANTED) {
        console.log('Location permission granted.');
      } else {
        console.log('Location permission denied.');
      }
    } catch (err) {
      console.warn(err);
    }
  }
};

useEffect(() => {
  const fetchLocation = async () => {
    await requestLocationPermission();
    Geolocation.getCurrentPosition(
      position => {
        console.log('Latitude:', position.coords.latitude);
        console.log('Longitude:', position.coords.longitude);
      },
      error => {
        console.warn(error.code, error.message);
      },
      { enableHighAccuracy: true, timeout: 15000, maximumAge: 10000 }
    );
  };

  fetchLocation();
}, []);