nsstring

问题 I am using the following method: - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string Before, in order to find the current text field I was in, I was able to write something like this: if (textField == self.textPlaceID) { //Do something } Is there a way to grab the name of my textField as a string? I am not asking to take what the user has typed in that textField , I'd like to be able to just get the property name of if.

问题 I have webservice response like this. NSString *str= @"Slight <b>left</b> onto <b>Adelaide Rd/B509</b><div style="font-size:0.9em">Continue to follow Adelaide Rd</div>"; I have to convert html tags in the above str to plain text.Can u please suggest me solution for this. 回答1: You can use NSScanner class to parse the HTML. Have a look at this post: How to convert NSString HTML markup to plain text NSString? 来源： https://stackoverflow.com/questions/8959700/how-to-convert-html-tags-to-plain-text

问题 I have webservice response like this. NSString *str= @"Slight <b>left</b> onto <b>Adelaide Rd/B509</b><div style="font-size:0.9em">Continue to follow Adelaide Rd</div>"; I have to convert html tags in the above str to plain text.Can u please suggest me solution for this. 回答1: You can use NSScanner class to parse the HTML. Have a look at this post: How to convert NSString HTML markup to plain text NSString? 来源： https://stackoverflow.com/questions/8959700/how-to-convert-html-tags-to-plain-text

问题 I'm wondering if it is possible to sort an NSArray of NSStrings based on a number value contained within. Basically its a list of process ID's and process names, and I would like to sort the processes based on their process ID. The array looks like this : "286 Google Chrome He", "1209 ibtool", "0 kernel_task", "1 launchd", "10 kextd", "11 notifyd", "12 diskarbitrationd", "13 configd", "14 syslogd", "15 DirectoryService", "16 distnoted", "18 ntpd", "22 SystemStarter", "25 securityd", "28 mds",

问题 I'm wondering if it is possible to sort an NSArray of NSStrings based on a number value contained within. Basically its a list of process ID's and process names, and I would like to sort the processes based on their process ID. The array looks like this : "286 Google Chrome He", "1209 ibtool", "0 kernel_task", "1 launchd", "10 kextd", "11 notifyd", "12 diskarbitrationd", "13 configd", "14 syslogd", "15 DirectoryService", "16 distnoted", "18 ntpd", "22 SystemStarter", "25 securityd", "28 mds",

问题 I'm wondering if there is a way to check if a string is containing a letter. If there is an NSString = @"street 12" I want it to return YES and if NSString = @"12.12,23.23" I want it to return NO Is there a method that handles this made by Apple or do I have to make it myself? 回答1: Here's one way: NSString *someString = ... // the string to check NSRange match = [someString rangeOfCharacterFromSet:[NSCharacterSet letterCharacterSet] options:0 range:NSMakeRange(0, someString.length)]; if

问题 I have an NSString *str, having value @"I like Programming and gaming." I have to remove "I" "like" & "and" from my string so it should look like as "Programming gaming" How can I do this, any Idea? 回答1: NSString *newString = @"I like Programming and gaming."; NSString *newString1 = [newString stringByReplacingOccurrencesOfString:@"I" withString:@""]; NSString *newString12 = [newString1 stringByReplacingOccurrencesOfString:@"like" withString:@""]; NSString *final = [newString12

问题 Running my program through the Leaks tool in X-Code, it points to this function as the main cause of my memory leaks. + (NSMutableArray *) getColumns:(NSString *) deviceHtml { NSMutableArray *ret = [[[NSMutableArray alloc] init] autorelease]; NSRegularExpression *m = [[NSRegularExpression alloc] initWithPattern:@"<td[\\w\\W\\d\\s</>]*?>[\\w\\W\\d\\s]+?</td>" options:NSRegularExpressionCaseInsensitive error:nil]; NSArray *results = [m matchesInString:deviceHtml options:NSMatchingCompleted

问题 I am able to convert an NSString of (ASCII) text to a NSString of binary numbers, but I am having troubles doing the opposite. For example: "Hi" becomes "01101000 01101001". I need: "01101000 01101001" to become "Hi". I'm looking for the most direct way to implement this. Note the space between every 8 bits of binary numbers. 回答1: Considering the format is always like that, this code should work: NSString * BinaryToAsciiString (NSString *string) { NSMutableString *result = [NSMutableString

问题 I am able to convert an NSString of (ASCII) text to a NSString of binary numbers, but I am having troubles doing the opposite. For example: "Hi" becomes "01101000 01101001". I need: "01101000 01101001" to become "Hi". I'm looking for the most direct way to implement this. Note the space between every 8 bits of binary numbers. 回答1: Considering the format is always like that, this code should work: NSString * BinaryToAsciiString (NSString *string) { NSMutableString *result = [NSMutableString