使用google maps api和react native获取当前用户位置？

npm install react-native-maps --save

import React, { Component } from 'react';
import { View } from 'react-native';
import MapView from 'react-native-maps';

class MapComponent extends Component {
  render() {
    return (
      <View style={{ flex: 1 }}>
        <MapView
          style={{ flex: 1 }}
          initialRegion={{
            latitude: 37.78825,
            longitude: -122.4324,
            latitudeDelta: 0.0922,
            longitudeDelta: 0.0421,
          }}
        />
      </View>
    );
  }
}

export default MapComponent;

export const GOOGLE_MAPS_API_KEY = 'YOUR_API_KEY';

import { GOOGLE_MAPS_API_KEY } from './config';

class MapComponent extends Component {
  render() {
    return (
      <View style={{ flex: 1 }}>
        <MapView
          style={{ flex: 1 }}
          initialRegion={{
            latitude: 37.78825,
            longitude: -122.4324,
            latitudeDelta: 0.0922,
            longitudeDelta: 0.0421,
          }}
          provider={MapView.PROVIDER_GOOGLE}
          showsUserLocation={true}
          followsUserLocation={true}
          showsMyLocationButton={true}
          zoomEnabled={true}
          rotateEnabled={true}
          scrollEnabled={true}
          apiKey={GOOGLE_MAPS_API_KEY}
        />
      </View>
    );
  }
}