React leaflet center attribute does not change when the center state changes

问题

App.js

import { useState } from 'react';

const App = () => {
  // This state is used to the center attribute of MapContainer component
  const [mapCenter, setMapCenter] = useState([34.80746, -40.4796]);
  // This state is used to the zoom attribute of MapContainer component
  const [mapZoom, setMapZoom] = useState(3);

  const onClickHandler = () => {
    setMapCenter([20, 100]);
    setMapZoom(5);
  };

  return (
    <>
      <button onClick={onClickHandler}>Change map's center location</button>
      <Map center={mapCenter} zoom={mapZoom} />
    </>
  );
};

Map.js

import React from 'react';
import './Map.css';
import { MapContainer, TileLayer } from 'react-leaflet';

function Map({ center, zoom }) {
  return (
    <div className="map">
      <MapContainer center={center} zoom={zoom}>
        <TileLayer
          url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
          attribution='&copy; <a 
                href="http://osm.org/copyright">OpenStreetMap</a> contributors'
        />
      </MapContainer>
    </div>
  );
}

export default Map;

Map.css

.map {
  height: 500px;
  background-color: white;
  padding: 1rem;
  border-radius: 20px;
  margin-top: 16px;
  box-shadow: 0 0 8px -4px rgba(0, 0, 0, 0.5);
}

.map .leaflet-container {
  height: 100%;
}

When I clicks button, mapCenter state clearly changes to [20, 100] and mapZoom also changes to 5. But in the Map Component Map does not show new center. but I don't know why. I already checked state's change. Map never respond. Does anyone knows??? Please answer a way to figure it out.

来源：https://stackoverflow.com/questions/64665827/react-leaflet-center-attribute-does-not-change-when-the-center-state-changes

标签

reactjs

leaflet