nsstring

问题 I have an NSString containing a url and when I allocate NSURL with the NSString , NSURL outputs (null). It's because there are some illegal characters in the url, which NSURL can't read without encoding the NSString containing the url. NSString *u = [incomingUrlString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSURL *url = [NSURL URLWithString:u]; NSLog(@"INCOMINGURLSTRING: %@" , u); NSLog(@"URL: %@" , url); Output is: INCOMINGURLSTRING: /url/path/fileName_blå.pdf URL

问题 I have reading everything and \" does NOT work. I am trying to create a string that looks like this: "SomeString" = "AnotherString" Here is the code that I have to insert the double quotes: NSString *newOutput = [NSString stringWithFormat:@"%@ \" = \" %@", output, [englishDic objectForKey:str]]; All that it outputs is: "RateThisAppDontAsk \" = \" Don't ask again" I thought maybe the "=" was causing problems but removing still gives me an output of this: "RateThisAppDontAsk \" \" Don't ask

问题 Hi I've got this header file: #import <Foundation/Foundation.h> @interface PCConstants : NSObject extern NSString *const kPCUserProfileKey; extern NSString *const kPCUserProfileNameKey; extern NSString *const kPCUserProfileFirstNameKey; extern NSString *const kPCUserProfileLocationKey; extern NSString *const kPCUserProfileGenderKey; extern NSString *const kPCUserProfileBirthDayKey; extern NSString *const kPCUserProfileInterestedInKey; @end implementation: #import "PCConstants.h"

问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 7 years ago . I wants to extract substring from NSString. How it is possible. Example : String is abcdefwww.google.comabcdef output : www.google.com In the main String

问题 I'm not sure if "fade out" is the correct term to use, as it seems to refer to the animation effect a lot, but what I'd like to achieve can be seen in the address bar of the iPhone Safari app. When a URL is too long to display, the end of the string "faded out" rather than truncated with "...". I thought this could be easily done by changing the Line Breaks setting from "Truncate Tail" to "Clip" in the XIB file and then using an image with transparency to create the effect. But setting to

问题 I have an NSString that contains some values separated by an unknown number of whitespace characters. For example: NSString* line = @"1 2 3"; I would like to split the NSString into an NSArray of values like so: {@"1", @"2", @"3"} . 回答1: Get the components separated by @" " and remove all objects like @"" from the resultant array. NSString* line = @"1 2 3"; NSMutableArray *array = (NSMutableArray *)[line componentsSeparatedByString:@" "]; [array removeObject:@""]; // This removes all objects

问题 I have an NSString that contains some values separated by an unknown number of whitespace characters. For example: NSString* line = @"1 2 3"; I would like to split the NSString into an NSArray of values like so: {@"1", @"2", @"3"} . 回答1: Get the components separated by @" " and remove all objects like @"" from the resultant array. NSString* line = @"1 2 3"; NSMutableArray *array = (NSMutableArray *)[line componentsSeparatedByString:@" "]; [array removeObject:@""]; // This removes all objects

问题 Using the following doesn't work: - (NSString *)stringByReplacingOccurrencesOfString:(NSString *)target withString:(NSString *)replacement By doesn't work I mean does not do any replacement what so ever. It returns the same exact string. Is there a convenience method to do this? Similar to: - (NSString *)stringByReplacingPercentEscapesUsingEncoding:(NSStringEncoding)encoding My code (just one line): NSString *escapedPath = [pathToBeConverted stringByReplacingOccurrencesOfString:@" "

问题 I am trying to url encode a string, but the NSURLConnection is failing because of a 'bad url'. Here is my URL: NSString *address = mp.streetAddress; NSString *encodedAddress = [address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSString *cityState= mp.cityState; NSString *encodedCityState = [cityState stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSString *fullAddressURL = [NSString stringWithFormat:@"http://www.zillow.com/webservice

问题 If you include Unicode characters in an NSString , a lot of them will take on the color set for that text - they're just regular glyphs for that font so they're displayed like any other character. But there are some Unicode characters that are colored, for example GLOBE WITH MERIDIANS which is a blue gradient with shadows. But I have seen this same glyph elsewhere that's a simple black outline without a shadow, for example in the iOS keyboard. I would like to use that glyph, but without the