使用Ionic和Google Maps，如何将地图标记移动到新位置？

import { Component } from '@angular/core';
import { GoogleMaps, GoogleMap, GoogleMapsEvent, Marker } from '@ionic-native/google-maps';

@Component({
  selector: 'app-home',
  templateUrl: 'home.page.html',
  styleUrls: ['home.page.scss'],
})
export class HomePage {
  map: GoogleMap;
  marker: Marker;

  constructor(private googleMaps: GoogleMaps) {}

  ionViewDidEnter() {
    this.loadMap();
  }

  loadMap() {
    this.map = this.googleMaps.create('map_canvas');

    this.map.one(GoogleMapsEvent.MAP_READY).then(() => {
      this.addMarker();
    });
  }

  addMarker() {
    this.map.addMarker({
      position: {
        lat: 37.7749,
        lng: -122.4194
      },
      draggable: true
    }).then((marker: Marker) => {
      this.marker = marker;
      this.marker.on(GoogleMapsEvent.MARKER_DRAG_END).subscribe(() => {
        const newPosition = this.marker.getPosition();
        // 在这里可以处理新位置坐标的逻辑
        console.log('New position:', newPosition);
      });
    });
  }
}