谷歌地图集成到 SwiftUI

zly*_*lyt 8 xcode google-maps swiftui xcode11

我刚开始使用 Xcode 和 SwiftUI 进行编程,并且在将 Google 地图集成到 SwiftUI 项目中时遇到了麻烦。

我将所有正确的 API 密钥添加到我的 AppDelegate.swift 文件中,并创建了一个名为 GoogMapView 的视图,我试图用它来显示 Google 地图的一个实例。这是我在文件 GoogMapView 中的代码:

import SwiftUI
import MapKit
import UIKit
import GoogleMaps
import GooglePlaces

struct GoogMapView : UIViewRepresentable {
    func makeUIView(context: Context) -> GMSMapView {
        GMSMapView(frame: .zero)
    }

    func updateUIView(_ view: GMSMapView, context: Context) {
        let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0)
        let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
        view = mapView

        let marker = GMSMarker()
        marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20)
        marker.title = "Sydney"
        marker.snippet = "Australia"
        marker.map = mapView
    }
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我一直在“view = mapView”处收到错误消息,但我尝试的一切都失败了。知道如何设置它以便我可以在主视图中调用它吗?

小智 7

我也是一个新的 iOS 开发者。我正在研究同样的事情,偶然发现了你的问题。由于我是 iOS 新手,我不能声称它遵循所有正确的约定,但是此代码可以在基本级别使用 SwiftUI 在模拟器上显示地图。解决方案基于您的代码和 Matteo 的观察。

import SwiftUI
import UIKit
import GoogleMaps

struct ContentView: UIViewRepresentable {
    let marker : GMSMarker = GMSMarker()

    /// Creates a `UIView` instance to be presented.
    func makeUIView(context: Self.Context) -> GMSMapView {
        // Create a GMSCameraPosition that tells the map to display the
        // coordinate -33.86,151.20 at zoom level 6.
        let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0)
        let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)

        return mapView
    }

    /// Updates the presented `UIView` (and coordinator) to the latest
    /// configuration.
    func updateUIView(_ mapView: GMSMapView, context: Self.Context) {
        // Creates a marker in the center of the map.
        marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20)
        marker.title = "Sydney"
        marker.snippet = "Australia"
        marker.map = mapView
    }

}
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