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2014/10/15 ¤U¤È 10:12:13
iphone Programming Glossary: num2Correcting floating point numbers http://stackoverflow.com/questions/10049533/correcting-floating-point-numbers here's an example to get you started NSDecimalNumber num1 NSDecimalNumber decimalNumberWithString @ 32 NSDecimalNumber num2 NSDecimalNumber decimalNumberWithString @ 32.1 Or since you use exponents NSDecimalNumber num2 NSDecimalNumber decimalNumberWithMantissa.. @ 32 NSDecimalNumber num2 NSDecimalNumber decimalNumberWithString @ 32.1 Or since you use exponents NSDecimalNumber num2 NSDecimalNumber decimalNumberWithMantissa 321 exponent 1 isNegative NO NSDecimalNumber myNumber num1 decimalNumberByAdding..
Sorting an array of doubles or CLLocationDistance values on the iPhone http://stackoverflow.com/questions/1422840/sorting-an-array-of-doubles-or-cllocationdistance-values-on-the-iphone I think what you want is sortedArrayUsingFunction context using something like this NSInteger intSort id num1 id num2 void context int v1 num1 intValue int v2 num2 intValue if v1 v2 return NSOrderedAscending else if v1 v2 return NSOrderedDescending.. context using something like this NSInteger intSort id num1 id num2 void context int v1 num1 intValue int v2 num2 intValue if v1 v2 return NSOrderedAscending else if v1 v2 return NSOrderedDescending else return NSOrderedSame sort things..
how to sort an NSArray using compare:options http://stackoverflow.com/questions/2031990/how-to-sort-an-nsarray-using-compareoptions have the intValue method. Place this functions somewhere above @implementation static NSInteger intSort id num1 id num2 void context int v1 num1 intValue int v2 num2 intValue if v1 v2 return NSOrderedAscending else if v1 v2 return NSOrderedDescending.. somewhere above @implementation static NSInteger intSort id num1 id num2 void context int v1 num1 intValue int v2 num2 intValue if v1 v2 return NSOrderedAscending else if v1 v2 return NSOrderedDescending else return NSOrderedSame And used..
NSDictionary sort by keys as floats http://stackoverflow.com/questions/3779739/nsdictionary-sort-by-keys-as-floats If you want to walk the values by sorted keys you can do something like this NSInteger floatSort id num1 id num2 void context float v1 num1 floatValue float v2 num2 floatValue if v1 v2 return NSOrderedAscending else if v1 v2 return NSOrderedDescending.. keys you can do something like this NSInteger floatSort id num1 id num2 void context float v1 num1 floatValue float v2 num2 floatValue if v1 v2 return NSOrderedAscending else if v1 v2 return NSOrderedDescending else return NSOrderedSame NSArray..
http://stackoverflow.com/questions/4558639/sort-an-nsmutabledictionary comparatorFunction context nil Being comparatorFunction from AppleDocumentation NSInteger intSort id num1 id num2 void context int v1 num1 intValue int v2 num2 intValue if v1 v2 return NSOrderedAscending else if v1 v2 return NSOrderedDescending.. comparatorFunction from AppleDocumentation NSInteger intSort id num1 id num2 void context int v1 num1 intValue int v2 num2 intValue if v1 v2 return NSOrderedAscending else if v1 v2 return NSOrderedDescending else return NSOrderedSame share improve..
How to sort array having numbers as string in iPhone? [duplicate] http://stackoverflow.com/questions/6097119/how-to-sort-array-having-numbers-as-string-in-iphone sortedArray nil sortedArray oldArray sortedArrayUsingFunction sortArray context NULL NSInteger intSort id num1 id num2 void context OR float n1 num1 floatValue etc. int n1 num1 intValue int n2 num2 intValue if n1 n2 return NSOrderedAscending.. NULL NSInteger intSort id num1 id num2 void context OR float n1 num1 floatValue etc. int n1 num1 intValue int n2 num2 intValue if n1 n2 return NSOrderedAscending else if n1 n2 return NSOrderedDescending else return NSOrderedSame share improve..
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