I want to integrate the Google Places Autocomplete API in my project but I am unable to achieve it with the documentation and also couldn't get some solid references for Swift-3. Can anyone please help? Thanks.
Swift 4, xCode 9
Usual http request. More details: https://developers.google.com/places/ios-api/autocomplete
PodFile
target 'stackoverflow-44996568' do
use_frameworks!
pod 'Alamofire'
pod 'ObjectMapper'
end
GoogleAutocompleteJSONModel
import ObjectMapper
class GoogleAutocompleteJSONModel: Mappable, CustomStringConvertible {
public fileprivate(set) var placeId: String?
public fileprivate(set) var reference: String?
public fileprivate(set) var title: String?
required convenience init?(map: Map) {
self.init()
}
func mapping(map: Map) {
title <- map["description"]
placeId <- map["place_id"]
reference <- map["reference"]
}
var description: String {
return "\(toJSON())"
}
}
Network
import Alamofire
import ObjectMapper
class Network {
class GoogleAPI {
class Map {
class var googleApiKey: String {
return "YOUR_KEY"
}
class func autocomplete(request: String) {
let url = "https://maps.googleapis.com/maps/api/place/autocomplete/json?input=\(request)&components=country:us&key=\(googleApiKey)"
Alamofire.request(url)
.responseJSON { response in
if let json = response.result.value as? [String: Any] {
//print("JSON: \(json)")
let places = Array<GoogleAutocompleteJSONModel>(json: json["predictions"])
let autocomplete = places.flatMap{ $0.title}
print("!!!! \(autocomplete)")
}
}
}
}
}
}
Extensions
import Foundation
extension Array where Element: Mappable {
init(json: Any?) {
self.init()
var result = [Element]()
if let array = json as? [[String: Any]] {
for item in array {
if let profile = Element(JSON: item) {
result.append(profile)
}
}
}
self = result
}
}
ViewController
import UIKit
class ViewController: UIViewController {
weak var searchBar: UISearchBar!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let searchBar = UISearchBar(frame: CGRect(origin: CGPoint(x: 0, y: 20), size: CGSize(width: UIScreen.main.bounds.width, height: 40)))
searchBar.delegate = self
view.addSubview(searchBar)
self.searchBar = searchBar
}
}
extension ViewController: UISearchBarDelegate {
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
Network.GoogleAPI.Map.autocomplete(request: searchText)
}
}