ios - 如何使用 Swift 启用 Google map 缩放控件

Question

我正在阅读 Google maps for swift 的文档，但与 Android 相比，我没有找到在我的 map 上设置“缩放控件”的方法，默认情况下是禁用的。

是否存在使用 Google Maps iOS SDK 显示控件的方法？

Answer 1

我认为@Scriptable 是正确的，文档中没有针对 iOS SDK 的 Zoom Controls 部分。

好吧，我制作了自己的(非常基本的)控件。

请保持此顺序(MapView、Button、Button)，否则您将看不到按钮。

第一个，您必须选择您的UIVIew 并将类更改为GSMMapView

并且，在 MapViewController

import Foundation
import UIKit
import GoogleMaps

class MapViewController: UIViewController {

    struct Place {
        let id: Int
        let name: String
        let lat: CLLocationDegrees
        let lng: CLLocationDegrees
        let icon: String
    }

    @IBOutlet weak var mapView: GMSMapView!
    var markerDict: [Int: GMSMarker] = [:]

    var zoom: Float = 15

    override func viewDidLoad() {
        super.viewDidLoad()

        let camera = GMSCameraPosition.camera(withLatitude: 34.1381168, longitude: -118.3555723, zoom: zoom)
        self.mapView.camera = camera

        do {
            if let styleURL = Bundle.main.url(forResource: "style", withExtension: "json") {
                mapView.mapStyle = try GMSMapStyle(contentsOfFileURL: styleURL)
            } else {
                NSLog("Unable to find style.json")
            }
        } catch {
            NSLog("One or more of the map styles failed to load. \(error)")
        }

        let places = [
            Place(id: 0, name: "MrMins", lat: 34.1331168, lng: -118.3550723, icon: "i01"),
        ]

        for place in places {
            let marker = GMSMarker()
            marker.position = CLLocationCoordinate2D(latitude: place.lat, longitude: place.lng)
            marker.title = place.name
            marker.snippet = "Custom snipet message \(place.name)"
            marker.appearAnimation = kGMSMarkerAnimationPop
            //marker.icon = self.imageWithImage(image: UIImage(named: place.icon)!, scaledToSize: CGSize(width: 35.0, height: 35.0))
            marker.map = self.mapView

            markerDict[place.id] = marker
        }

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }



    @IBAction func btnZoomIn(_ sender: Any) {
        zoom = zoom + 1
        self.mapView.animate(toZoom: zoom)
    }

    @IBAction func btnZoomOut(_ sender: Any) {
        zoom = zoom - 1
        self.mapView.animate(toZoom: zoom)
    }


}