谷歌的地方自动完成IOS迅速用的UITextField

Question

我想实现谷歌通过以下库放置在SWIFT 2.0项目自动完成API集成：

https://github.com/watsonbox/ios_google_places_autocomplete

我不能够想出的唯一的事情是我想与我的应用程序窗体中有uitextfield这个有国家和城市领域。

我已经在一个演示项目中实现了这个应用程序，并且发现它也提供了我长期的位置。

请帮我指导我整合此库与uitextfield，因此当用户输入uitextfield时，结果仅显示在uitextfield的下方。

通过合作来实现在演示应用程序代码中，我才知道，在搜索框打开了下面的代码：

let gpaViewController = GooglePlacesAutocomplete(
     apiKey: "API KEY FROM GOOGLE PLACES API", 
     placeType: .Address 
    ) 

我无法弄清楚如何得到这个viewcontroller功能的工作对我uitextfield因此它可以正常工作uitextfield

Answer 1

为什么不使用适用于iOS的Google Places API？它具有上述库中所见的所有功能。这里是链接https://developers.google.com/places/ios-api/autocomplete

并且您可以使用fetcher对象来获取预测结果，并根据需要自定义结果。希望这有助于

Answer 2

谷歌的自动完成API使用搜索栏

1）

let googleAutoCompeteApi = "https://maps.googleapis.com/maps/api/place/autocomplete/json?input=%@&types=establishment|geocode&location=%@,%@&radius=500&language=en&key=%@" 
var arrPlaces = NSMutableArray(capacity: 100) 
let operationQueue = NSOperationQueue() 
let googleServerkey = "Your API KEY" 

2）

func searchBar(searchBar: UISearchBar, textDidChange searchText: String) { 
     self.beginSearching(searchText) 
    } 

    func beginSearching(searchText:String) { 
     if searchText.characters.count == 0 { 
      self.arrPlaces.removeAllObjects() 
      self.tblOfflineCity.reloadData() 
      return 
     } 

     operationQueue.addOperationWithBlock {() -> Void in 
      self.forwardGeoCoding(searchText) 
     } 
    } 

    //MARK: - Search place from Google - 
    func forwardGeoCoding(searchText:String) { 
     googlePlacesResult(searchText) { (result) -> Void in 
      let searchResult:NSDictionary = ["keyword":searchText,"results":result] 
      if result.count > 0 
      { 
       let features = searchResult.valueForKey("results") as! [AnyObject] 
       self.arrPlaces = NSMutableArray(capacity: 100) 
       for dictAddress in features { 
        self.arrPlaces.addObject(dictAddress.valueForKey("description")!) 
       } 
       dispatch_async(dispatch_get_main_queue(), { 
        self.tblOfflineCity.reloadData() 
       }); 
      } 
     } 
    } 

    //MARK: - Google place API request - 
    func googlePlacesResult(input: String, completion: (result: NSArray) -> Void) { 
     let searchWordProtection = input.stringByReplacingOccurrencesOfString(" ", withString: "") 
     if searchWordProtection.characters.count != 0 { 
      let urlString = NSString(format: googleAutoCompeteApi,input,currentLat,currentLong,googleServerkey) 
      let url = NSURL(string: urlString.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!) 
      let defaultConfigObject = NSURLSessionConfiguration.defaultSessionConfiguration() 
      let delegateFreeSession = NSURLSession(configuration: defaultConfigObject, delegate: nil, delegateQueue: NSOperationQueue.mainQueue()) 
      let request = NSURLRequest(URL: url!) 
      let task = delegateFreeSession.dataTaskWithRequest(request, 
                   completionHandler: { 
                    (data, response, error) -> Void in 
                    if let data = data { 

                     do { 
                      let jSONresult = try NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.AllowFragments) as! [String:AnyObject] 
                      let results:NSArray = jSONresult["predictions"] as! NSArray 
                      let status = jSONresult["status"] as! String 

                      if status == "NOT_FOUND" || status == "REQUEST_DENIED" { 

                       let userInfo:NSDictionary = ["error": jSONresult["status"]!] 
                       let newError = NSError(domain: "API Error", code: 666, userInfo: userInfo as [NSObject : AnyObject]) 
                       let arr:NSArray = [newError] 
                       completion(result: arr) 
                       return 
                      } else { 
                       completion(result: results) 
                      } 
                     } 
                     catch { 
                      print("json error: \(error)") 
                     } 
                    } else if let error = error { 
                     print(error.description) 
                    } 
      }) 
      task.resume() 
     } 
    } 

你会得到导致self.arrPlaces 。要在uitextField中使用，只需要使用uitextField委托而不是搜索栏调用函数