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2014/10/15 ¤U¤È 10:11:57
iphone Programming Glossary: n1How 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 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 else if n1 n2 return NSOrderedDescending.. 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 else if n1 n2 return NSOrderedDescending else return.. 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 this answer..
How do I verify reference count in ARC mode? http://stackoverflow.com/questions/8863269/how-do-i-verify-reference-count-in-arc-mode owner of this instance. There could be weak or unretained references to it but no other strong references. NSNumber n1 NSNumber alloc initWithInt 200 NSLog @ n1 reference count ld CFGetRetainCount __bridge CFTypeRef n1 Prints 1 again. New.. weak or unretained references to it but no other strong references. NSNumber n1 NSNumber alloc initWithInt 200 NSLog @ n1 reference count ld CFGetRetainCount __bridge CFTypeRef n1 Prints 1 again. New instance with same value as prior instance... NSNumber n1 NSNumber alloc initWithInt 200 NSLog @ n1 reference count ld CFGetRetainCount __bridge CFTypeRef n1 Prints 1 again. New instance with same value as prior instance. You could of course compare pointers to see that they are..
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