如何在react-native-maps中刷新地图？

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

class MapScreen extends Component {
  constructor(props) {
    super(props);
    this.mapRef = React.createRef();
  }

  refreshMap = () => {
    // 在这里执行地图刷新的逻辑
    // 例如，更新地图的中心点或标记的位置
  }

  render() {
    return (
      <View style={{ flex: 1 }}>
        <MapView
          ref={this.mapRef}
          style={{ flex: 1 }}
          initialRegion={{
            latitude: 37.78825,
            longitude: -122.4324,
            latitudeDelta: 0.0922,
            longitudeDelta: 0.0421,
          }}
        />
      </View>
    );
  }
}

export default MapScreen;

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

class MapScreen extends Component {
  // ...

  refreshMap = () => {
    // 在这里执行地图刷新的逻辑
    // 例如，更新地图的中心点或标记的位置
  }

  render() {
    return (
      <View style={{ flex: 1 }}>
        <MapView
          ref={this.mapRef}
          style={{ flex: 1 }}
          initialRegion={{
            latitude: 37.78825,
            longitude: -122.4324,
            latitudeDelta: 0.0922,
            longitudeDelta: 0.0421,
          }}
        />
        <Button title="刷新地图" onPress={this.refreshMap} />
      </View>
    );
  }
}

export default MapScreen;