nsnumber

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Convert NSString to double for calculations and then back again to print in NSString

I accept NSString as NSString *value = [valuelist objectAtIndex:valuerow]; NSString *value2 = [valuelist2 objectAtIndex:valuerow2];[详细]

2023-01-08 00:45 分类：问答
Unable to set class properties

Now Im sure Im doing something extremely schoolboy here, but Im seriously hitting my head against a wall, for some reason Im getting EXEC_BAD_ACCESS when trying to set an NSNumber property on a custom[详细]

2023-01-08 00:14 分类：问答
Problem when converting NSString to NSNumber in iPhone

I am having problem when converting string (YaxisData) to NSNumber. I have to return a NSNumber for Core-plot to get the graph done but its not working. Here\'s the sample code[详细]

2023-01-06 08:15 分类：问答
NSNumbers in archived array dissappear

Okay I\'ve made an array of NSNumber objects that I\'ve stored into an NSMutableArray. When the game loads it\'s unarchived and retained but all the NSNumber objects are gone. Here\'s my code:[详细]

2023-01-03 22:34 分类：问答
NSNumber floatValue not equal to NSNumber value

First post here. Having a problem with NSNumber\'s floatValue method -- somehow, it returns an imprecise number.Here\'s the problem:I store a bunch of NSNumbers in an array, like this:[详细]

2022-12-29 19:52 分类：问答
SOAP app variables - NSNumber or NSString for integer?

In a SOAP app, all communication with the server is as text, when the server needs an integer it is the text value that gets sent and returned integers are sent back as text.[详细]

2022-12-26 21:13 分类：问答
How to add numbers in a mutable array in iPhone?

I am new to iPhone development. I want a Nsmutable array to hold numbers from 1 to 100. How can I do it? How can I imple开发者_开发技巧ment in a for loop? Is there any other way to hold numbers in arr[详细]

2022-12-26 03:03 分类：问答
Change NSNumber value by allocating new NSNumber?

I understand that NSNumber is immutable, but I still have the need to change it in my app. I use it because it\'s an开发者_运维问答 object, and therefore usable with @property (if I could, I would use[详细]

2022-12-24 22:37 分类：问答
NSNumber >= 13 won't retain. Everything else will

The code I\'m currently working on requires adding an NSNumber object to an array. All of the NSNumbers with value 0-12 are added fine, but 13 onward causes a EXC_BAD_ACCESS. I turned on NSZombieEnabl[详细]

2022-12-24 17:53 分类：问答
get type of NSNumber

I want to get the t开发者_开发问答ype of NSNumber instance. I found out on http://www.cocoadev.com/index.pl?NSNumber this:[详细]

2022-12-24 08:49 分类：问答