parsing query strings in URLs
이전 포스팅에 이어서 URL Scheme 을 통해서 다른 앱을 실행할 때,
[[UIApplication sharedApplication] openURL:
[NSURL URLWithString:@"TestSample://domain?abc=1&def=2"]];
실행되는 앱에서는 아래와 같은 메소드를 통해서 URL Scheme 을 통해 전달된 정보를 확인할 수 있습니다.
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
NSString *URLString = [url absoluteString];
[[NSUserDefaults standardUserDefaults] setObject:URLString forKey:@"url"];
[[NSUserDefaults standardUserDefaults] synchronize];
NSLog(@"dictionary = %@", [url dictionaryByDecodingQueryString]);
위의 dictionaryByDecodingQueryString 는
아래의 샘플 파싱 코드에서 제공하는 메소드입니다.
아래는 URL 파싱하는 코드입니다.(친절하게도 누군가가 이런걸 올려주셨군요 ㅎㅎ)
https://github.com/millenomi/muikit/blob/master/NSURL+L0URLParsing.h
https://github.com/millenomi/muikit/blob/master/NSURL+L0URLParsing.m
// Created by ∞ on 11/02/09.
// Copyright 2009 __MyCompanyName__. All rights reserved.
#import <Foundation/Foundation.h>
@interface NSURL (L0URLParsing)
- (NSDictionary*) dictionaryByDecodingQueryString;
@interface NSDictionary (L0URLParsing)
- (NSString*) queryString;
// Created by ∞ on 11/02/09.
// Copyright 2009 __MyCompanyName__. All rights reserved.
#import "NSURL+L0URLParsing.h"
@implementation NSURL (L0URLParsing)
- (NSDictionary*) dictionaryByDecodingQueryString;
NSString* query = [self query];
NSString* resSpecifier = [self resourceSpecifier];
NSRange r = [resSpecifier rangeOfString:@"?"];
if (r.location == NSNotFound || r.location == [resSpecifier length] - 1)
return [NSDictionary dictionary];
query = [resSpecifier substringFromIndex:r.location + 1];
NSArray* keyValuePairs = [query componentsSeparatedByString:@"&"];
NSMutableDictionary* dict = [NSMutableDictionary dictionary];
for (NSString* pair in keyValuePairs) {
NSArray* splitPair = [pair componentsSeparatedByString:@"="];
NSAssert([splitPair count] > 0, @"At least one element out of componentsSeparatedByString:");
NSString* key = [splitPair objectAtIndex:0];
if ([splitPair count] > 2) {
NSMutableArray* splitPairWithoutKey = [NSMutableArray arrayWithArray:splitPair];
[splitPairWithoutKey removeObjectAtIndex:0];
value = [splitPairWithoutKey componentsJoinedByString:@"="];
} else if ([splitPair count] == 2)
value = [splitPair objectAtIndex:1];
[dict setObject:[value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding] forKey:[key stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
[dict setObject:[NSNull null] forKey:[key stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
@implementation NSDictionary (L0URLParsing)
- (NSString*) queryString;
NSMutableString* queryString = [NSMutableString string];
for (NSString* key in self) {
[queryString appendString:@"&"];
[queryString appendString:[key stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
id value = [self objectForKey:key];
if (![value isEqual:[NSNull null]]) {
[queryString appendString:@"="];
[queryString appendString:[value stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];