ios - 如何传入纬度和经度参数 Yelp API

Question

我正在使用 Yelp API，这是搜索方法:

func searchWithTerm(term: String, success: (AFHTTPRequestOperation!, AnyObject!) -> Void, failure: (AFHTTPRequestOperation!, NSError!) -> Void) -> AFHTTPRequestOperation! {
        // For additional parameters, see http://www.yelp.com/developers/documentation/v2/search_api
        var parameters = ["term": term, "ll": "37.77493,-122.419415"]
        return self.GET("search", parameters: parameters, success: success, failure: failure)
    }

目前这是使用给定的 ll 参数进行硬编码的。我将用户的位置存储在不同的 VC 中，当我尝试传递经纬度来替换硬编码值时，我收到错误...

我将位置存储在主 ViewController 中作为 CLLocationCooperative2D。然后我想更改 searchWithTermMethod 中的坐标

我做错了什么？传入一个 double 值应该相当简单...

我尝试这样做:

func searchWithTerm(term: String, success: (AFHTTPRequestOperation!, AnyObject!) -> Void, failure: (AFHTTPRequestOperation!, NSError!) -> Void) -> AFHTTPRequestOperation! {
            // For additional parameters, see http://www.yelp.com/developers/documentation/v2/search_api
            var parameters = ["term": term, "ll": userLocation.latitude, userLocation.longitude]
            return self.GET("search", parameters: parameters, success: success, failure: failure)
        }

和错误:“字典文字中预期有 ':'”

Answer 1

您需要将纬度和经度组合成一个字符串，您可以使用插值来实现:

var parameters = ["term": term, "ll": "\(userLocation.latitude), \(userLocation.longitude)"]