How to Convert GMUFeature to GMSPath - ios

Question

I have drawn slots on google maps using Geojson. Now when the user long presses on the slot should ask the user whether to save the location or not. But I don't know how to enable long press only for the slots. Could anybody suggest me how to do this. Below is the code I have used.
`// the below is the code to render the slots on the google maps
let geoJsonParser = GMUGeoJSONParser(url: url!)
geoJsonParser.parse()
let renderer = GMUGeometryRenderer(map: self.mapview, geometries: geoJsonParser.features)
let style = GMUStyle(styleID: "random", stroke: UIColor.black, fill: UIColor.green, width: 2, scale: 1, heading: 0, anchor: CGPoint(x: 0, y: 0), iconUrl: nil, title: nil, hasFill: true, hasStroke: true)
for feature in geoJsonParser.features {
feature.style = style
}
renderer.render()
// The below code is to check whether the user has long pressed on the slot or not(written this code inside the didLongPressAt function).
for feature in geoJsonParser.features {
if GMSGeometryContainsLocation(coordinate, feature as! GMSPath, true) {// the app is crashing with an error in the console "Could not cast value of type 'GMUFeature' (0x1033573d0) to 'GMSPath' (0x1033585a0)"
print("YES: you are in this polygon.")
marker.title = "\(coordinate)"
marker.map = mapview
} else {
print("You do not appear to be in this polygon.")
}
}`

Answer 1

Finally, after lot of efforts I found the solution.
Note: If anyone is integrating Google-Maps-iOS-Utils library, then don't add header files in Bridging-Header file as suggested in Google developer document.
Wherever you are using the below code, just write import GoogleMapsUtils at top.
let path = Bundle.main.path(forResource: "dld_areas", ofType: "json")
let url = URL(fileURLWithPath: path!)
let data: Data = try! Data.init(contentsOf: url)
let json = try JSON(data: data)
//our json is having properties containing area name and area id, bacause the properties field inside the GMUFeature is retuning us nil, we have to pass it indiviually
let jsonFeatures: [JSON] = json["features"].array ?? []
geoJsonParser = GMUGeoJSONParser.init(data: data)
geoJsonParser.parse()
var index = 0
for feature in geoJsonParser.features {
var innerFeature = feature
while(innerFeature.geometry.type != "GeometryCollection"){
print("type is" + innerFeature.geometry.type)
innerFeature = innerFeature.geometry as! GMUGeometryContainer
}
let collection = innerFeature.geometry as! GMUGeometryCollection
let polygon:GMUPolygon = collection.geometries.first as! GMUPolygon
var isAreaObtained = false
for path in polygon.paths{
//check if the coordinates lie within the polygon
if (GMSGeometryContainsLocation(coordinates, path, true)) {
isAreaObtained = true
print(jsonFeatures[index]["properties"]["NAME_EN"])
print(jsonFeatures[index]["properties"]["AREA_ID"])
print("location inside polygon")
break;
}
}
if(isAreaObtained){
break
}
index = index + 1
}
I found the above code in the following link:
https://github.com/googlemaps/google-maps-ios-utils/issues/205
I have used this code and modified as per my requirement.