How to open Google Maps to show route using Swift

OK I found the answer myself.

If you want to show directions from the user's current location, leave the field saddr blank and in the field daddr you can enter the destination coordinates.

This is how I did it

if (UIApplication.sharedApplication().canOpenURL(NSURL(string:"comgooglemaps://")!)) {
            UIApplication.sharedApplication().openURL(NSURL(string:
                "comgooglemaps://?saddr=&daddr=\(place.latitude),\(place.longitude)&directionsmode=driving")!)

        } else {
            NSLog("Can't use comgooglemaps://");
        }
    }

for any further queries you can refer to this link Google Map URL Scheme

Swift 5 - Code

func openGoogleMap() {
     guard let lat = booking?.booking?.pickup_lat, let latDouble =  Double(lat) else {Toast.show(message: StringMessages.CurrentLocNotRight);return }
     guard let long = booking?.booking?.pickup_long, let longDouble =  Double(long) else {Toast.show(message: StringMessages.CurrentLocNotRight);return }
      if (UIApplication.shared.canOpenURL(URL(string:"comgooglemaps://")!)) {  //if phone has an app

          if let url = URL(string: "comgooglemaps-x-callback://?saddr=&daddr=\(latDouble),\(longDouble)&directionsmode=driving") {
                    UIApplication.shared.open(url, options: [:]) 
           }}
      else {
             //Open in browser
            if let urlDestination = URL.init(string: "https://www.google.co.in/maps/dir/?saddr=&daddr=\(latDouble),\(longDouble)&directionsmode=driving") {
                               UIApplication.shared.open(urlDestination)
                           }
                }

        }

Don't forget to write this in info.plist

<key>LSApplicationQueriesSchemes</key>
    <array>
    <string>comgooglemaps</string>
    <string>comgooglemaps-x-callback</string>
    </array>

The Answer is already there but in older versions of Swift

In Swift 3

//Working in Swift new versions.
if (UIApplication.shared.canOpenURL(URL(string:"comgooglemaps://")!)) 
{
    UIApplication.shared.openURL(NSURL(string:
    "comgooglemaps://?saddr=&daddr=\(Float(latitude!)),\(Float(longitude!))&directionsmode=driving")! as URL)   
} else 
{
    NSLog("Can't use com.google.maps://");
}