首页 > 解决方案 > Swift 5:如何在点击/触摸坐标时在 GoogleMap 上添加标记?

问题描述

我正在学习适用于 iOS 的 GoogleMap-SDK,在此过程中我确实搜索了上述问题并找到了令人满意的答案,但没有找到实际有用的答案。

EG:Swift 3 谷歌地图在触摸时添加标记

它添加了标记,但没有地名或地点详细信息,没有该标记就没有那么有用,为此我必须搜索其他答案以从坐标中获取地址。

所以,在这里我结合了这两个答案,以节省其他开发人员的时间并使其标记更实用。

标签: iosswiftgoogle-mapsgoogle-maps-markersgoogle-maps-sdk-ios

解决方案


对于 Swift 5.0+

首先,确保您已将GMSMapViewDelegate委托添加到您的 ViewController 类

我们不需要UILongPressGestureRecognizerUITapGestureRecognizer为此GMSMapViewDelegate提供方便的默认方法。

///This default function fetches the coordinates on long-press on `GoogleMapView`
func mapView(_ mapView: GMSMapView, didLongPressAt coordinate: CLLocationCoordinate2D) {
     
     //Creating Marker
     let marker = GMSMarker(position: coordinate)
    
     let decoder = CLGeocoder()

     //This method is used to get location details from coordinates
     decoder.reverseGeocodeLocation(CLLocation(latitude: coordinate.latitude, longitude: coordinate.longitude)) { placemarks, err in
        if let placeMark = placemarks?.first {

            let placeName = placeMark.name ?? placeMark.subThoroughfare ?? placeMark.thoroughfare!   ///Title of Marker
            //Formatting for Marker Snippet/Subtitle       
            var address : String! = ""
            if let subLocality = placeMark.subLocality ?? placeMark.name {
                address.append(subLocality)
                address.append(", ")
            }
            if let city = placeMark.locality ?? placeMark.subAdministrativeArea {
                address.append(city)
                address.append(", ")
            }
            if let state = placeMark.administrativeArea, let country = placeMark.country {
                address.append(state)
                address.append(", ")
                address.append(country)
            }

            // Adding Marker Details
            marker.title = placeName
            marker.snippet = address
            marker.appearAnimation = .pop
            marker.map = mapView
        }
    }
}

希望能帮助到你 !!!


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