How to store CGRect values in NSMutableArray?

Question

How would I store CGRect objects in a NSMutableArray, and then later retrieve them?

score 291 · Accepted Answer · answered May 29 '10 at 07:22

291

You need to wrap the CG structures in NSValue classes. So:

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

answered May 29 '10 at 07:22

Jason Coco

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more examples here: http://iosdevelopertips.com/cocoa/storing-cgpoint-cgsize-and-cgrect-in-collections-using-nsvalue.html – WINSergey Aug 13 '17 at 16:56
great answer! would be even more useful if you demonstrated "unboxing" of the stored NSValue back to CGRect. – Motti Shneor Jul 24 '19 at 12:24
Not available on MacOS – Cliff Ribaudo Dec 27 '20 at 13:48

score 13 · Answer 2 · edited Nov 09 '20 at 03:29

13

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

edited Nov 09 '20 at 03:29

Jon Schneider

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answered Dec 25 '13 at 10:24

Jane

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score 2 · Answer 3 · answered Nov 11 '14 at 07:54

We store the CGRect,CGPoint,CMTime objects in a NSMutableArray,

[arrayName addObject:[NSValue valueWithCGPoint:MyCGPoint]]

[arrayName addObject:[NSValue valueWithCGRect:MyCGRect]]

[arrayName addObject:[NSValue valueWithCMTime:MyCMTime]]

[arrayName addObject:[NSValue valueWithCMTimeRange:MyCMTimeRange]]

score 1 · Answer 4 · answered Sep 12 '14 at 14:05

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);

How to store CGRect values in NSMutableArray?

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