Maps SDK 使 iPhone 崩溃（怀疑内存泄漏？）

Question

我正在尝试在 xcode 中测试 Google Maps SDK 的基本功能。我在 Xcode 模拟器中运行了下面的代码，它运行得很好。但是，当我尝试在 iPhone 8 上运行它时，它会正确显示我的位置，但地图视图会不断重新加载，最终，我的手机内存已满，应用程序崩溃。我是使用 Google Maps SDK 的新手，尽管我怀疑这是某种内存泄漏。任何建议或帮助将不胜感激。

import CoreLocation
import GoogleMaps
import UIKit

class ViewController: UIViewController, CLLocationManagerDelegate {
        
    
    let manager = CLLocationManager()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        manager.delegate = self
        
        manager.requestWhenInUseAuthorization()
        manager.startUpdatingLocation()
        
        GMSServices.provideAPIKey("")
        // Do any additional setup after loading the view, typically from a nib.
        print("View has loaded")
        
        
        // Do any additional setup after loading the view.
        // Create a GMSCameraPosition that tells the map to display the
        // coordinate -33.86,151.20 at zoom level 6.
     
        
        print("License: \n\n\(GMSServices.openSourceLicenseInfo())")
    }
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        
        guard let location = locations.first else {
            return
        }
        
        let coordinate = location.coordinate
        let camera = GMSCameraPosition.camera(withLatitude: coordinate.latitude, longitude: coordinate.longitude, zoom: 12.5)
        let mapView = GMSMapView.map(withFrame: view.frame, camera: camera)
        view.addSubview(mapView)
        
        // Creates a marker in the center of the map.
        let marker = GMSMarker()
        marker.position = coordinate
        marker.title = "My Location"
        marker.snippet = "On Earth"
        marker.map = mapView
        
    }

}

..

Answer 1

您正在为每次位置更新添加另一个地图视图。这会很快消耗资源。

相反，应该只添加一次地图视图，在位置更新开始之前，并且在位置更新例程中，只更新标记。