从 CLPlacemark 项中提取dependentLocality答案

【问题标题】：Extract dependentLocality from CLPlacemark item从 CLPlacemark 项中提取dependentLocality
【发布时间】：2015-09-10 03:15:07
【问题描述】：

我正在尝试提取 CLPlacemark 对象中返回的dependentLocality 信息。数据（匿名）看起来像

{
            "cache_control" = CACHEABLE;
            "start_index" = 0;
            status = "STATUS_SUCCESS";
            ttl = 15768000;
            type = "COMPONENT_TYPE_ADDRESS";
            value =                 (
                                    {
                    address =                         {
                        "known_accuracy" = POINT;
                        "localized_address" =                             (
                                                            {
                                address =                                     {
                                    formattedAddressLine =                                         (
                                        "111 Some St",
                                        "Brooklyn, NY  11111-1111",
                                        "United States"
                                    );
                                    structuredAddress =                                         {
                                        administrativeArea = "New York";
                                        administrativeAreaCode = NY;
                                        areaOfInterest =                                             (
                                            "Long Island"
                                        );
                                        country = "United States";
                                        countryCode = US;
                                        dependentLocality =                                             (
                                            "Bedford Stuyvesant",
                                            Brooklyn
                                        );
                                        fullThoroughfare = "111 Some St";
                                        geoId =                                             (
                                        );
                                        locality = "New York";
                                        postCode = 11206;
                                        postCodeExtension = 1111;
                                        postCodeFull = "11111-1111";
                                        subAdministrativeArea = Kings;
                                        subLocality = Brooklyn;
                                        subThoroughfare = 111;
                                        thoroughfare = "Some St";
                                    };
                                };
                                locale = "en_US";
                            }
                        );
                    };
                }
            );
            "values_available" = 1;
            version = 7;
            "version_domain" =                 (
                apple,
                revgeo,
                US
            );
        },

我无法访问内容（除了通过 Apple 的结构化地址属性，它不包含我想要的内容）。例如，我想从上面的内容中提取“Bedford Stuyvesant”，Brooklyn”。已经尝试了多种解决方法，但例如将地标投射到 NSDictionary 失败。任何帮助将不胜感激！

【问题讨论】：

我对此进行了进一步研究，无法将 CLPlacemark 对象转换为 NSDictionary（或其他任何东西，显然），因此使用标准 CoreLocation 方法似乎是不可能的。
纽约市位置的 subLocality 属性未正确分配。看看这个国家的其他一些地方，你会看到社区名称经常出现。例如在旧金山，Nob Hill、Russian Hill、Cow Hollow 都出现在 subLocality 属性中。我已经能够提取dependentLocality，但它不可靠。

标签： ios swift geocoding cllocationmanager

【解决方案1】：

也许您可以进行一些字符串处理以从您的 placemark.description 中提取dependentLocality。但是你为什么不直接使用 placemark.subLocality 属性呢？

NSString *geoMapItem = placemark.description;
NSRange start = [geoMapItem rangeOfString:@"dependentLocality"];
NSRange end = [geoMapItem rangeOfString:@")" options:NSCaseInsensitiveSearch range:NSMakeRange(start.location, 1000)];
NSString *dataString = [geoMapItem substringWithRange:NSMakeRange(start.location, end.location - start.location + end.length)];
dataString = [dataString stringByReplacingOccurrencesOfString:@"\n" withString:@""];
dataString = [dataString stringByReplacingOccurrencesOfString:@"  " withString:@""];
dataString = [dataString stringByReplacingOccurrencesOfString:@"\"" withString:@""];

start = [dataString rangeOfString:@"("];
end = [dataString rangeOfString:@")"];
NSString *arrayString = [dataString substringWithRange:NSMakeRange(start.location + 1, end.location - start.location - 1)];

NSArray *array = [arrayString componentsSeparatedByString:@","];

【讨论】：

因为 1：没有字符串、数组或字典方法适用于 CLPlacemark，并且 2：placemark.subLocality 没有返回所需的结果（例如，返回“Brooklyn”而不是dependentLocality 的“Crown Heights, Brooklyn ")。
我添加了一些字符串处理代码来提取dependentLocality :-)