nsstring

问题 Alright, I'll try and make this as simple as possible (I was seeming to get the run around on chat.stackoveflow.com when I tried asking this question). I want to pass the text from a textfield in one viewcontroller to another viewcontroller. Should I use a Model class and store the the textfield.text in a Model.[h/m] files and then have the second view controller access the data stored in the model? Basically this is what I have, ViewControllerWelcome.h @interface ViewControllerWelcome :

问题 This question already has answers here : How To Add New Keys and Values Into Plist Using Objective C? (1 answer) Save NSDictionary to plist (3 answers) Closed 3 years ago . I have created JSON data store Into Plist . Now the problem is after JSON data storage, I need to add two set of keys into every array of dictionary items like below Image_2.The key name isParent - Boolean YES and isChild - Boolean YES with levels like mentioned below Image_2. Now I have below structure of plsit datas Its

问题 I am creating a word scrambler and I am having issues randomizing the letters. When the letters get randomized, it doesn't make sense. For example, the word PARK shows as AAPA. So, as you can tell it won't make sense for the user when it is time to unscramble. Just so you know, I am using a .plist file to hold the words. This is the code I am using to randomize the letters: _words = [NSMutableArray arrayWithCapacity:scramblelength]; for (int i=0;i<scramblelength;i++) { NSString *letter =

问题 Ok, say I have the string " hello my name is donald " Now, I want to remove everything from " hello " to " is " The thing is, " my name " could be anything, it could also be " his son " So basically, simply doing stringByReplacingOccurrencesOfString won't work. (I do have RegexLite) How would I do this? 回答1: Use like below it will help you NSString *hello = @"his is name is isName"; NSRange rangeSpace = [hello rangeOfString:@" " options:NSBackwardsSearch]; NSRange isRange = [hello

问题 Google Docs returns a long 3 line string when supplied with credentials. This is the format SID=stuff... LSID=stuff... Auth=long authorization token if I have it stored in NSString, what is the best function to trim all the way up to the "=" behind Auth, and keep the rest? NSData *returnedData = [NSURLConnection sendSynchronousRequest:request returningResponse:theResponse error:NULL]; NSString *newDataString = [[NSString alloc]initWithData:returnedData encoding:NSUTF8StringEncoding]; NSString

问题 I am trying to understand a little more about memory management. Knowing that I need to release anything that I have init or alloc'ed I am confused about the following: - (NSMutableArray *)getData { NSMutableArray *data = [[NSMutableArray alloc] init]; NSString *first = @"First object"; [data addObject:first]; NSString *second = @"Second object"; [data addObject:second]; return data; } Since I used alloc and init, I know I need to release my data object. But if I add autorelease to the init

问题 if NSString sample = @"1sa34hjh#@"; Float 64 floatsample = [sample floatValue]; what happens? what does floatsample contain? 回答1: Read the documentation. Return Value The floating-point value of the receiver’s text as a float, skipping whitespace at the beginning of the string. Returns HUGE_VAL or –HUGE_VAL on overflow, 0.0 on underflow. Also returns 0.0 if the receiver doesn’t begin with a valid text representation of a floating-point number. The best way to figure out the return value is to

问题 I am developing an app using IOS 8 in which I am using SOAP service to save data to server. Service works fine and getting response if my method name string length is less than 65535. If my method name string length is greater than 65535, then I am not getting any response from server. Here is the code. -(void)fetchDataFromURL:(NSString *)finalURL withMethodName:(NSString *)methodName withType:(NSString *)methodType migrationCompletionHandler:(void(^)(BOOL resultValue, NSData *responseData,

问题 I need to Remove some extra string that which coming in between the "(" ")" is this possible?. If so kindly tell me the way that need to do. For example "Lead Programmer Analyst(#5641)". I need to remove the string #5641 that which is between ( and ). Thank you, S. 回答1: pass Your string to the below method , it will return the proper string - (NSString *)stringCleaner:(NSString *)yourString { NSScanner *theScanner; NSString *text = nil; theScanner = [NSScanner scannerWithString:yourString];

问题 I don't have the ability in Xcode to resolve this problem: I have this text: "402 Garcia 01/08/15 10:26 Observaciones del huésped" And i want to extract the date that i'm sure is GMT +0, then add the phone GMT for example GMT +1 and the replace that old date with the new date inside the NSString. The GMT stuff i have just solve it in another place so i just need to extract and replace the date string in to the string so my final result will be something like: "402 Garcia 01/08/15 11:26