嘿，使用来自 GitHub 的快速代码
https://github.com/vijayvir/LeoGoogle/blob/master/AutoCompeteWithSearchBar/LeoGoogleAutoCompleteSearch.swift
@IBOutlet var leoGoogleAutoCompleteSearch: LeoGoogleAutoCompleteSearch!
override func viewDidLoad() {
super.viewDidLoad()
leoGoogleAutoCompleteSearch.closureDidUpdateSearchBarWithPredictions = { predictions in
predictions.map({ (prediction ) -> Void in
print(prediction.placeId ?? "NG" , " ?? " , prediction.description ?? "NG" )
})
}
这里我创建了 autocomplete api 的对象，它将通过closure返回 place_id 和搜索的描述。进一步开发者可以修改代码。对于请求，我使用 Almofire 来获取请求，这在当今很常见。
更多关于代码
mport Foundation
import GooglePlaces
import Alamofire
import UIKit
typealias LeoGoogleMapACompletionBlock = (AnyObject, AnyObject) -> Void
typealias LeoGoogleMapAFailureBlock = (AnyObject, AnyObject) -> Void
struct LeoGoogleMapsApiPlaceAutocomplete {
static func get(url: URL,
completionHandler: LeoGoogleMapACompletionBlock? = nil,
failureHandler: LeoGoogleMapAFailureBlock? = nil) {
print("??????? get :", url)
Alamofire.request(url,
method: .get
)
.responseJSON { response in
print(" get ??????? " )
if let json = response.result.value {
// print("WebServices : - ", json)
completionHandler!(json as AnyObject, response.result as AnyObject)
} else {
failureHandler?("" as AnyObject, "" as AnyObject)
}
}
.responseString { _ in
failureHandler?("" as AnyObject, "" as AnyObject)
// print("responseString Success: \(responseString)")
}
.responseData { _ in
}
}
struct Prediction {
var description : String?
var id : String?
var placeId : String?
init(dictionary : NSDictionary) {
description = dictionary["description"] as? String
id = dictionary["id"] as? String
placeId = dictionary["place_id"] as? String
}
}
var predictions: [Prediction] = []
init(response: AnyObject) {
if let searchList = response["predictions"] as? [Any] {
for object in searchList {
let tempPrediction = Prediction(dictionary: (object as? NSDictionary)!)
predictions.append(tempPrediction)
}
}
}
}
class LeoGoogleAutoCompleteSearch: NSObject {
@IBOutlet weak var searchBar: UISearchBar!
var closureDidUpdateSearchBar : ((LeoGoogleMapsApiPlaceAutocomplete)-> Void)?
var closureDidUpdateSearchBarWithPredictions : (([LeoGoogleMapsApiPlaceAutocomplete.Prediction])-> Void)?
}
extension LeoGoogleAutoCompleteSearch : UISearchBarDelegate {
func searchBarShouldBeginEditing(_ searchBar: UISearchBar) -> Bool {
return true
}
func searchBarShouldEndEditing(_ searchBar: UISearchBar) -> Bool {
return true }
func searchBar(_ searchBar: UISearchBar, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
return true
}
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) { // called when text changes (including clear)
webserviceSearchBy(text: searchBar.text!)
}
func webserviceSearchBy(text : String) {
let newString = text.replacingOccurrences(of: " ", with: "+")
let url : URL = URL(string: "https://maps.googleapis.com/maps/api/place/autocomplete/json?input=\(newString)&key=AIzaSyAVrXmSPxYourApiPK_ceurWlZJgrpWY")!
LeoGoogleMapsApiPlaceAutocomplete.get(url: url, completionHandler: { (response, _) in
let some : LeoGoogleMapsApiPlaceAutocomplete = LeoGoogleMapsApiPlaceAutocomplete(response: response)
self.closureDidUpdateSearchBar?(some)
self.closureDidUpdateSearchBarWithPredictions?(some.predictions)
}) { (response, _) in
}
}
}