How to customise googlemap infoWindow using Swift 3

Xcode version: 8.1

aim:

To replace native infoWindow by custom one

problem:

When I click on the marker, my custom infoWindow did not show up but the native one, Or
Thread 1:signal SIGABRT shown if I don't delete myView.delegate = self(See my code & my research #21)

what I have done:

Created a .swift file and a .xib file with my custom infoWindow design.

Inserted mapView function into ViewController.swift:

override func viewDidLoad() {
    super.viewDidLoad()

...

    let camera = GMSCameraPosition.camera(withLatitude: latitude,
                                          longitude: Longitude, zoom: 16)
    let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
    mapView.delegate = self  // Thread 1:signal SIGABRT shown if i add this line
    mapView.isMyLocationEnabled = true
    self.view = mapView

    let marker = GMSMarker()
    marker.position = CLLocationCoordinate2DMake(latitude, Longitude)
    marker.title = "Me"
    marker.map = mapView
    mapView.selectedMarker = marker
}

func mapView(_ mapView: GMSMapView, markerInfoWindow marker: GMSMarker) -> UIView? {
    let infoWindow = Bundle.main.loadNibNamed("CustomInfoWindow", owner: self.view, options: nil)!.first! as! CustomInfoWindow
    infoWindow.title.text = marker.title
    return infoWindow
}

my research:

Solution

Did you implement GMSMapViewDelegate?

ViewController: GMSMapViewDelegate {

   ...

}

It seems to be that you are getting the error(crash) because you are setting the delegate to self, but your controller does not conform to that protocol.