Google map pin drop animation

ViewController.swift

//
//  ViewController.swift
//  GoogleMapPinDropAnimation
//
//  Created by Jecky Modi on 27/10/19.
//  Copyright © 2019 Jecky Modi. All rights reserved.
//

import UIKit
import GoogleMaps

class ViewController: UIViewController {
    
    @IBOutlet weak var mapView: GMSMapView!
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0)
        mapView.camera = camera
        
        let marker = GMSMarker()
        marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20)
        marker.title = "Sydney"
        marker.icon = UIImage(named: "pin")
        marker.snippet = "Australia"
        
        mapView.animate(to: camera)
        
        DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
            
            let viewPoints = self.mapView.projection.point(for: CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20))
            print(viewPoints)
            
            let pinView = UIView(frame: CGRect(x: viewPoints.x - 22, y: viewPoints.y - 200, width: 44, height: 44))
            let imgView = UIImageView(frame: CGRect(x: 0, y: 0, width: 44, height: 44))
            imgView.image = UIImage(named : "pin")
            pinView.addSubview(imgView)
            
            self.view.addSubview(pinView)
            
            
            UIView.animate(withDuration: 1.0, delay: 0.5, options: .curveEaseInOut, animations: {
                
                pinView.frame = CGRect(x: viewPoints.x - 22, y: viewPoints.y - 22, width: 44, height: 44)
                
                self.view.layoutIfNeeded()
            }) { (value) in
                marker.map = self.mapView
                UIView.animate(withDuration: 0.2, animations: {
                    pinView.alpha = 0.0
                    self.view.layoutIfNeeded()
                })
            }
        }
    }
}