Google maps Places Picker for iOS - GMSPlacePicker in Swift appearing but disappears when animation ends

Question

I'm trying to convert the simple GMSPlacePicker example to Swift

but the Picker appears but then disappears immediately as soon as the transition from Right to left completes.

    //  ViewController.swift
import UIKit
import CoreLocation
import GoogleMaps

class ViewController: UIViewController {

    @IBAction func buttonPlacesPicker_TouchUpInside(sender: AnyObject) {

        //-----------------------------------------------------------------------------------
        var southWestSydney : CLLocationCoordinate2D = CLLocationCoordinate2DMake(-33.8659, 151.1953)
        var northEastSydney : CLLocationCoordinate2D = CLLocationCoordinate2DMake(-33.8645, 151.1969)

        var sydneyBounds : GMSCoordinateBounds = GMSCoordinateBounds(coordinate: southWestSydney, coordinate:northEastSydney)

        //var config : GMSPlacePickerConfig = GMSPlacePickerConfig(viewport:sydneyBounds)
        var config : GMSPlacePickerConfig = GMSPlacePickerConfig(viewport:nil)

        //---------------------------------------------------------------------
        var placePicker : GMSPlacePicker = GMSPlacePicker(config: config)

        //typealias GMSPlaceResultCallback = (GMSPlace?, NSError?) -> Void

        var error: NSError? = nil
        var gmsPlace: GMSPlace? = nil

        placePicker.pickPlaceWithCallback(){
            (gmsPlace, error) -> Void in
            if let error = error{
                println("error:\(error)")
            }else{
                if let gmsPlace = gmsPlace{
                    if let formattedAddress = gmsPlace.formattedAddress{
                        println("formattedAddress:\r\(formattedAddress)")
                    }else{
                        println("gmsPlace.formattedAddress is nil")
                    }

                }else{
                    println("gmsPlace is nil")
                }

                println("info")
            }
        }
    }
}

My app has asked for Location sucessfully

I have a bridging header to Google Maps.

I didnt use cocoa pods to install the framework

but I've used the framework in Obj-C before

so just dragged the GoogleMaps.framework to project and the internal resources bundle

I added all the following from previous tutorials and linker errors:

When I run it I can see sydney in the pickers maps.

It transitions from right side fo the screen to the left.

When it reaches the left it disappears

I added Reveal app and I cant see the picker view offline.

My GMS services api key is correct as its one I used in obj-c app to show Places Picker.

Bundle id is correct.

My Swift knowledge is "I think I know it. I probably don't"

any ideas?

Answer 1

You should retain the reference to your GMSPlacePicker. Make it a property instead of local variable.