Converting a CGPoint to NSValue

Question

In CABasicAnimation.fromValue I want to convert a CGPoint to a \"class\" so I used NSValue valueWithPoint but in device m

Answer 1

@ashcatch 's answer is very helpful, but consider that those methods from addition copy values, when native NSValue methods store pointers! Here is my code checking it:

CGPoint point = CGPointMake(2, 4);
NSValue *val = [NSValue valueWithCGPoint:point];
point.x = 10;
CGPoint newPoint = [val CGPointValue];

here newPoint.x = 2; point.x = 10

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CGPoint point = CGPointMake(2, 4);
NSValue *val = [NSValue valueWithPointer:&point];
point.x = 10;
CGPoint *newPoint = [val pointerValue];

here newPoint.x = 10; point.x = 10