Escaping completion handler never happens (Google Places API) - swift

Question

I'm building an app that uses the Google Places API. I currently have a button that, when tapped, gets the address of the current GPS location. The code is in my view controller:
var placesClient: GMSPlacesClient?
#IBAction func buttonTapped(_ sender: AnyObject) {
placesClient?.currentPlace(callback: { (placeLikelihoods, error) -> Void in
guard error == nil else {
print("Current Place error: \(error!.localizedDescription)")
return
}
if let placeLikelihoods = placeLikelihoods {
let place = placeLikelihoods.likelihoods.first?.place
self.addressLabel.text = place?.formattedAddress!.components(separatedBy: ", ").joined(separator: "\n")
}
})
print("Out of the brackets...")
}
When done this way, the function completes and "Out of the brackets..." is printed.
However, when I try moving this code out of the view controller and into a custom class and call it from the view controller, like below, everything within the "placesClient?.currentPlace(callback" block runs (and retrieves the correct address), but "Out of the brackets..." never gets printed and it never returns the value:
class LocationAPIService {
var placesClient: GMSPlacesClient? = GMSPlacesClient.shared()
func getCurrentLocation() -> GMSPlace? {
var thisPlace: GMSPlace?
placesClient?.currentPlace(callback: { (placeLikelihoods, error) -> Void in
guard error == nil else {
print("Current Place error: \(error!.localizedDescription)")
return
}
if let placeLikelihoods = placeLikelihoods {
let place = placeLikelihoods.likelihoods.first?.place
thisPlace = place
}
})
print("Out of the brackets...")
return thisPlace
}
}
Anybody know why this might be happening?

Answer 1

Fixed it. Here is the code I used for the method in my LocationAPIService class:
func setCurrentLocationPlace(completion: #escaping (_ result: Bool)->()) {
var placeFindComplete: Bool = false
placesClient?.currentPlace(callback: { (placeLikelihoods, error) -> Void in
guard error == nil else {
print("Current Place error: \(error!.localizedDescription)")
completion(true)
return
}
if let placeLikelihoods = placeLikelihoods {
let place = placeLikelihoods.likelihoods.first?.place
self.currentPlace = place
placeFindComplete = true
completion(true)
}
})
if (placeFindComplete == false) {
completion(false)
}
}
And here is the way I called it from the view controller:
locationAPIService?.setCurrentLocationPlace() { (locationFound) -> () in
if (locationFound == true) {
//Run code here that triggers once setCurrentLocationPlace() complete.
}