我想知道是否有可能从CLPlacemark获得州名缩写？
在Apple的CLPlacemark参考中，它声明：
administrativeArea 与地标相关的州或省。 （只读） @property（非原子，只读）NSString * administrativeArea 讨论 例如，如果地标位置是Apple的总部，则此属性的值将为字符串“CA”或“California”。
但每当我使用它时，我只获得完整状态（即加利福尼亚州）而不是缩写（即CA）。谁能在这帮助我？
答案 0 :(得分：33)
对于其他需要解决方案的人来说，我已经为CLPlacemark创建了一个返回短状态字符串的类别类。您只需拨打myPlacemark shortState
CLPlacemark + ShortState.h
#import <CoreLocation/CoreLocation.h>
#import <Foundation/Foundation.h>
@interface CLPlacemark (ShortState)
- (NSString *)shortState;
@end
CLPlacemark + ShortState.m
#import "CLPlacemark+ShortState.h"
@interface CLPlacemark (ShortStatePrivate)
- (NSDictionary *)nameAbbreviations;
@end
@implementation CLPlacemark (ShortState)
- (NSString *)shortState {
NSString *state = [self.administrativeArea lowercaseString];
if (state.length==0)
return nil;
return [[self nameAbbreviations] objectForKey:state];
}
- (NSDictionary *)nameAbbreviations {
static NSDictionary *nameAbbreviations = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
nameAbbreviations = [NSDictionary dictionaryWithObjectsAndKeys:
@"AL",@"alabama",
@"AK",@"alaska",
@"AZ",@"arizona",
@"AR",@"arkansas",
@"CA",@"california",
@"CO",@"colorado",
@"CT",@"connecticut",
@"DE",@"delaware",
@"DC",@"district of columbia",
@"FL",@"florida",
@"GA",@"georgia",
@"HI",@"hawaii",
@"ID",@"idaho",
@"IL",@"illinois",
@"IN",@"indiana",
@"IA",@"iowa",
@"KS",@"kansas",
@"KY",@"kentucky",
@"LA",@"louisiana",
@"ME",@"maine",
@"MD",@"maryland",
@"MA",@"massachusetts",
@"MI",@"michigan",
@"MN",@"minnesota",
@"MS",@"mississippi",
@"MO",@"missouri",
@"MT",@"montana",
@"NE",@"nebraska",
@"NV",@"nevada",
@"NH",@"new hampshire",
@"NJ",@"new jersey",
@"NM",@"new mexico",
@"NY",@"new york",
@"NC",@"north carolina",
@"ND",@"north dakota",
@"OH",@"ohio",
@"OK",@"oklahoma",
@"OR",@"oregon",
@"PA",@"pennsylvania",
@"RI",@"rhode island",
@"SC",@"south carolina",
@"SD",@"south dakota",
@"TN",@"tennessee",
@"TX",@"texas",
@"UT",@"utah",
@"VT",@"vermont",
@"VA",@"virginia",
@"WA",@"washington",
@"WV",@"west virginia",
@"WI",@"wisconsin",
@"WY",@"wyoming",
nil];
});
return nameAbbreviations;
}
@end
答案 1 :(得分：6)
我认为你不能得到各州的缩写，但你可以为此制作自己的班级。
<强>代码..
类StateAbbreviation
StateAbbreviation.h
@interface StateAbbreviation : NSString {
}
+ (NSString *)allStates:(int)index;
+ (NSString *)abbreviatedState:(NSString *)strState;
@end
StateAbbreviation.m
@implementation StateAbbreviation
+ (NSString *)allStates:(NSString *)strState {
// Remove all space on the string
strState = [strState stringByReplacingOccurrencesOfString:@" " withString:@""];
//Sample states
NSArray *states = [[NSArray alloc] initWithObjects:
@"ALABAMA",
@"ALASKA", //AK
@"AMERICANSAMOA", //AS
@"ARIZONA", //AZ
@"ARKANSAS", //AR
@"CALIFORNIA", //CA
nil];
NSUInteger n = [states indexOfObject:strState];
if (n > [states count] - 1) {
strAbbreviation = @"NOSTATE";
}
else {
strAbbreviation =[self abbreviatedState:n];
}
[states release];
return strAbbreviation;
}
+ (NSString *)abbreviatedState:(int)index {
NSArray *states = [[NSArray alloc] initWithObjects:
@"AL",
@"AK",
@"AS",
@"AZ",
@"AR",
@"CA",
nil];
NSString *strAbbreviation = [states objectAtIndex:index];
[states release];
return strAbbreviation;
}
@end
当你打电话给班级时，它应该是这样的
NSString *upperCase = [@"California" uppercaseString]; // California could be from (NSString *)placemark.administrativeArea;
NSString *abbr = [StateAbbreviation allStates:upperCase];
NSLog(@"%@", abbr); // Result should be CA
这只是您可以研究所有状态的示例，states and their abbreviations也是这样states and their abbreviations
答案 2 :(得分：3)
我认为文档不正确。 administrativeArea总是返回美国地方的完整州名。要获得州名缩写，您很可能必须创建一个字典查找表，以便搜索“加利福尼亚”键将返回值“CA”。
答案 3 :(得分：1)
这是使用FormattedAddressLines的另一个类别，它返回像California，CA
这样的结果-(NSString *) stateWithAbbreviation {
if ([[self.addressDictionary objectForKey:@"CountryCode"] isEqualToString:@"US"] && self.addressDictionary) {
NSDictionary *addressLines = [self.addressDictionary objectForKey:@"FormattedAddressLines"];
for (NSString* addressLine in addressLines) {
NSRange stateRange = [addressLine rangeOfString:self.postalCode options:NSCaseInsensitiveSearch];
if (stateRange.length > 0) {
NSRange lastSpace = [addressLine rangeOfString:@" " options:NSBackwardsSearch];
if (lastSpace.length > 0) {
NSString *state = [[addressLine substringToIndex:lastSpace.location] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
lastSpace = [state rangeOfString:@" " options:NSBackwardsSearch];
if (lastSpace.length > 0) {
NSString *abbr = [[state substringFromIndex:lastSpace.location] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
return [NSString stringWithFormat:@"%@, %@", self.administrativeArea, abbr];
}
}
}
}
}
return self.administrativeArea;
}
不完美但只要Apple改变我认为的地址行格式就行。
答案 4 :(得分：1)
对于需要交换对象和密钥的状态列表的人（例如在iOS 7上我得到＆＃34; CA＆＃34;来自placemark.administrativeArea）：
NSDictionary *nameAbbreviations = [NSDictionary dictionaryWithObjectsAndKeys:
@"alabama",@"AL",
@"alaska",@"AK",
@"arizona",@"AZ",
@"arkansas",@"AR",
@"california",@"CA",
@"colorado",@"CO",
@"connecticut",@"CT",
@"delaware",@"DE",
@"district of columbia",@"DC",
@"florida",@"FL",
@"georgia",@"GA",
@"hawaii",@"HI",
@"idaho",@"ID",
@"illinois",@"IL",
@"indiana",@"IN",
@"iowa",@"IA",
@"kansas",@"KS",
@"kentucky",@"KY",
@"louisiana",@"LA",
@"maine",@"ME",
@"maryland",@"MD",
@"massachusetts",@"MA",
@"michigan",@"MI",
@"minnesota",@"MN",
@"mississippi",@"MS",
@"missouri",@"MO",
@"montana",@"MT",
@"nebraska",@"NE",
@"nevada",@"NV",
@"new hampshire",@"NH",
@"new jersey",@"NJ",
@"new mexico",@"NM",
@"new york",@"NY",
@"north carolina",@"NC",
@"north dakota",@"ND",
@"ohio",@"OH",
@"oklahoma",@"OK",
@"oregon",@"OR",
@"pennsylvania",@"PA",
@"rhode island",@"RI",
@"south carolina",@"SC",
@"south dakota",@"SD",
@"tennessee",@"TN",
@"texas",@"TX",
@"utah",@"UT",
@"vermont",@"VT",
@"virginia",@"VA",
@"washington",@"WA",
@"west virginia",@"WV",
@"wisconsin",@"WI",
@"wyoming",@"WY",
nil];
答案 5 :(得分：1)
至少从iOS 8开始，CLPlacemark的{{1}}会返回美国国家/地区的两个字母缩写。
只要你的目标是iOS 8及更新版本（你现在应该是这样），你就不需要像接受答案中那样扩展CLPlacemark类别。
administrativeArea运行这个，你会得到：
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
[geocoder geocodeAddressString:@"1 Infinite Loop, Cupertino, CA" completionHandler:^(NSArray *placemarks, NSError *error) {
CLPlacemark *placemark = [placemarks firstObject];
NSLog(@"State: %@", placemark.administrativeArea);
}];
答案 6 :(得分：0)
字典的SWIFT变体
let states = [
"AL":"alabama",
"AK":"alaska",
"AZ":"arizona",
"AR":"arkansas",
"CA":"california",
"CO":"colorado",
"CT":"connecticut",
"DE":"delaware",
"DC":"district of columbia",
"FL":"florida",
"GA":"georgia",
"HI":"hawaii",
"ID":"idaho",
"IL":"illinois",
"IN":"indiana",
"IA":"iowa",
"KS":"kansas",
"KY":"kentucky",
"LA":"louisiana",
"ME":"maine",
"MD":"maryland",
"MA":"massachusetts",
"MI":"michigan",
"MN":"minnesota",
"MS":"mississippi",
"MO":"missouri",
"MT":"montana",
"NE":"nebraska",
"NV":"nevada",
"NH":"new hampshire",
"NJ":"new jersey",
"NM":"new mexico",
"NY":"new york",
"NC":"north carolina",
"ND":"north dakota",
"OH":"ohio",
"OK":"oklahoma",
"OR":"oregon",
"PA":"pennsylvania",
"RI":"rhode island",
"SC":"south carolina",
"SD":"south dakota",
"TN":"tennessee",
"TX":"texas",
"UT":"utah",
"VT":"vermont",
"VA":"virginia",
"WA":"washington",
"WV":"west virginia",
"WI":"wisconsin",
"WY":"wyoming"
]