MKMapSnapshotter返回黑色背景图片iOS 13

Question

从iOS 13开始，此代码返回黑色图像。有什么想法吗？

我还记录了这些警告：

InfoLog FlyoverNightShader: WARNING: 0:29: Overflow in implicit constant conversion, minimum range for lowp float is (-2,2)
WARNING: 0:31: Overflow in implicit constant conversion, minimum range for lowp float is (-2,2)

let mapSnapshotOptions = MKMapSnapshotter.Options()
    mapSnapshotOptions.mapType = .satelliteFlyover
    let location = CLLocationCoordinate2D(latitude: lat, longitude: long)
    let span = MKCoordinateSpan(latitudeDelta: 10, longitudeDelta: 10)
    let region = MKCoordinateRegion(center: location, span: span)
    mapSnapshotOptions.region = region
    let snapShotter = MKMapSnapshotter(options: mapSnapshotOptions)

    snapShotter.start { [weak self]  (snapshot, error)in
        if let image = snapshot?.image {
            main {
                self?.mapImageView.image = image
                self?.mapActivityIndicator.stopAnimating()
            }
        }

    }

Answer 1

我也看到了黑色的MKMapSnapshotter图像，但只能在模拟器中看到。当在设备上运行时，它对我来说工作得很好。

Answer 2

为了进一步参考，关于这个MapKit bug有一个开放的雷达：http://www.openradar.me/33233699