在iOS中更改MyLocationButton在谷歌地图中的位置

import UIKit
import GoogleMaps
import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate {

    @IBOutlet weak var mapView: GMSMapView!
    
    let locationManager = CLLocationManager()

    override func viewDidLoad() {
        super.viewDidLoad()
        
        locationManager.delegate = self
        locationManager.requestWhenInUseAuthorization()
        
        if CLLocationManager.locationServicesEnabled() {
            locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
            locationManager.startUpdatingLocation()
        }
    }
}

extension ViewController {
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        guard let location = locations.last else { return }
        
        let camera = GMSCameraPosition.camera(withLatitude: location.coordinate.latitude, longitude: location.coordinate.longitude, zoom: 15.0)
        mapView.camera = camera
        
        locationManager.stopUpdatingLocation()
    }
}

override func viewDidLoad() {
    super.viewDidLoad()
    
    // ...其他代码...
    
    // 创建自定义MyLocationButton
    let customLocationButton = UIButton(type: .system)
    customLocationButton.setImage(UIImage(named: "my_location_icon"), for: .normal)
    customLocationButton.frame = CGRect(x: view.frame.size.width - 40, y: view.frame.size.height - 40, width: 30, height: 30)
    customLocationButton.addTarget(self, action: #selector(customLocationButtonTapped), for: .touchUpInside)
    
    mapView.addSubview(customLocationButton)
}

@objc func customLocationButtonTapped() {
    mapView.isMyLocationEnabled = !mapView.isMyLocationEnabled
}