Question

我正在尝试通过 UIViewRepresentable 在SwiftUI中使用HEREMaps，并且在实例化NMAMapView时遇到以下崩溃。使用HEREMaps版本3.13.3 pod。

线程1：EXC_BAD_INSTRUCTION（代码= EXC_I386_INVOP，子代码= 0x0）

import SwiftUI
import NMAKit

struct MapView: UIViewRepresentable {

    func makeUIView(context: Context) -> NMAMapView {
        let mapView = NMAMapView()
        return mapView
    }

    func updateUIView(_ uiView: NMAMapView, context: Context) {

    }
}

struct ContentView: View {
    var body: some View {
        MapView()
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

此外，在我的Inof.plist中添加NSLocationWhenInUseUsageDescription也不算运气

Answer 1

我们已经编写了一个示例代码来初始化NMAPView。尝试以下操作

import UIKit
import NMAKit

class ViewController: UIViewController {

    @IBOutlet weak var mapView: NMAMapView!

    private var gestureMarker: NMAMapMarker?

    override func viewDidLoad() {
        super.viewDidLoad()
        //set current controller to be delegate of map view's gesture
        mapView.gestureDelegate = self

        //add image icon to show current positon, which can shows map view motion when gestures were applied
        guard let image = UIImage(named: "indicator") else { return }
        let indicatorMarker = NMAMapMarker(geoCoordinates: mapView.geoCenter, image: image)
        mapView.add(mapObject: indicatorMarker)
    }

Answer 2

这是此处的SDK问题。不幸的是，尚未找到解决方法。

修复将包含在计划于2020年4月1日的下一个HERE SDK版本（3.15）中。

感谢举报！

实例化时，带有SwiftUI的HEREMaps会因EXC_BAD_INSTRUCTION崩溃

2 个答案: