Come memorizzare i valori CGRect in NSMutableArray?

Question

Come memorizzare gli oggetti CGRect in un NSMutableArray e successivamente recuperarli?

Answer 1

È necessario avvolgere le strutture CG nelle classi NSValue. Quindi:

NSMutableArray* array = [NSMutableArray mutableArray]; 
[array addObject:[NSValue valueWithCGRect:CGRectMake(0,0,10,10)]]; 
CGRect someRect = [[array objectAtIndex:0] CGRectValue]; 

Answer 2

CGRect rect = CGRectMake(5, 5, 40, 30); 
NSString* rectAsString = NSStringFromCGRect(rect); 
CGRect original = CGRectFromString(rectAsString); 

Cosa ne pensi in questo modo per memorizzare le date CGRect?

Answer 3

Store string in array.and then get back string and convert that in CGRect back as per the need. 
CGRect rect = CGRectMake(5, 5, 40, 30); 
NSString* rectAsString = NSStringFromCGRect(rect); 
NSMutableArray* array = [NSMutableArray mutableArray]; 
[array addObject:rectAsString]; 

For converting string in CGRect back use:- 
CGRect rect9 = CGRectFromString(rectAsString); 

Answer 4

salviamo le CGRect, CGPoint, CMTime oggetti in una NSMutableArray,

[arrayName addObject:[NSValue valueWithCGPoint:MyCGPoint]]

[arrayName addObject:[NSValue valueWithCGRect:MyCGRect]]

[arrayName addObject:[NSValue valueWithCMTime:MyCMTime]]

[arrayName addObject:[NSValue valueWithCMTimeRange:MyCMTimeRange]]