Ios 谷歌地图绘制多纬度经度之间的多段线

我有一个经纬度数组，我想用这些数据画多段线

数组数据如下：

[
     {
        address = "Gota, Godrej Garden City Road, Ahmedabad, India, 382481 ",
        city = Ahmedabad,
        latitude = "23.10104251103548",
        longitude = "72.54941169820619",
        street = "Godrej Garden City Road",
     },
     {
        address = "Aaryan Eureka Opposite Shayona Shikhar, Vandemataram Rd, Gota, Ahmedabad, Gujarat 382481",
        city = Ahmedabad,
        latitude = "23.09644251103548",
        longitude = "72.54801169820619",
        street = "Vandemataram Rd",
     },
     ....// Hundreds of records
]

到目前为止我试过的代码

let path = GMSMutablePath()
    for mapData in arrMapData {
        path.add(CLLocationCoordinate2D(latitude: mapData.latitude ?? 0.0, longitude: mapData.longitude ?? 0.0))
    }
    let polyline = GMSPolyline(path: path)
    polyline.strokeWidth = 3.0
    polyline.strokeColor = .black
    polyline.map = mapView // Google MapView

    // Creates a marker in the center of the map.
    let marker = GMSMarker()
    marker.position = CLLocationCoordinate2D(latitude: arrMapData[0].latitude ?? 0.0, longitude: arrMapData[0].longitude ?? 0.0)
    marker.icon = UIImage(named: AppImages.Pin_red)
    marker.title = sourceTitle
    marker.snippet = sourceSnippet
    marker.map = mapView

    let marker1 = GMSMarker()
    marker1.position = destination
    marker1.icon = UIImage(named: AppImages.Map_pin_orange)
    marker1.title = destinationTitle
    marker1.snippet = destinationSnippet
    marker1.map = mapView

我知道Google Direction API，但我不需要调用该API，因为我已经拥有所有这些经纬度数据。。。 即使为所有一百条记录调用DirectionAPI也不是一个可行的解决方案

我上面的代码没有给我任何错误。它正在地图上绘制两个管脚，这对我来说似乎是正确的[从数组的第0个索引对象和数组的最后一个索引对象添加的源-目标详细信息]

但地图上没有添加多段线。我正在寻找解决这个问题的办法。

---

谢谢大家!

根据您的代码，我将数组lat和lng修改为以下函数

func drawPolyline(){
        let location: CLLocationCoordinate2D = CLLocationCoordinate2D(latitude: 23.10104251103548, longitude: 72.54941169820619)
        let camera = GMSCameraPosition.camera(withTarget: location, zoom: 18)
        self.mapContentView.mapView.animate(to: camera)

        let arrLat = [23.10104251103548, 23.09644251103548, 23.08644251103548, 23.07644251103548, 23.06644251103548]
        let arrLng = [72.54941169820619, 72.54801169820619, 72.54701169820619, 72.54601169820619, 72.54501169820619]
        let path = GMSMutablePath()
        for i in 0..<arrLat.count {
            path.add(CLLocationCoordinate2D(latitude: arrLat[i], longitude: arrLng[i]))
        }
        let polyline = GMSPolyline(path: path)
        polyline.strokeWidth = 3.0
        polyline.strokeColor = .black
        polyline.map = self.mapContentView.mapView

        let marker = GMSMarker()
        marker.position = CLLocationCoordinate2D(latitude: 23.10104251103548, longitude: 72.54941169820619)
        marker.icon = UIImage(named: "ic_marker")
        marker.title = "A"
        marker.snippet = "ABC"
        marker.map = self.mapContentView.mapView

        let marker1 = GMSMarker()
        marker1.position = CLLocationCoordinate2D(latitude: 23.06644251103548, longitude: 72.54501169820619)
        marker1.icon = UIImage(named: "ic_marker")
        marker1.title = "B"
        marker1.snippet = "EFG"
        marker1.map = self.mapContentView.mapView
    }

func drawPolyline（）{
let位置：CLLocationCoordinate2D=CLLocationCoordinate2D（纬度：23.10104251103548，经度：72.54941169820619）
让摄像头=GMSCameraPosition.摄像头（带目标：位置，缩放：18）
self.mapContentView.mapView.animate（到：摄影机）
设arrLat=[23.10104251103548,23.09644251103548,23.08644251103548,23.07644251103548,23.06644251103548]
假设arrLng=[72.54941169820619,72.5480169820619,72.54701169820619,72.54601169820619,72.54501169820619]
let path=GMSMutablePath（）
因为我在0

我认为你应该首先在你的应用程序中尝试一些lat&lng示例。如果它起作用，那么问题来自你的解析数据。
确保你的
mapData。纬度
和
mapData。经度
是数字和>0@TraiNguyen是的。是的，你是对的。我的代码是完美的。问题是经纬度数据。谢谢你的回答。