How to obtain 'x' via [object valueForKeyPath:@"frame.origin.x"]?

Question

The object is a UIView. I want to get x value of the object via [object valueForKeyPath:@"frame.origin.x"], however i got following errors:

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ valueForUndefinedKey:]: this class is not key value coding-compliant for the key origin.'

What's going on? And how to solve it? Thanks in advance.

Answer 1

Use that Code

CGRect rect = [object valueForKeyPath:@"frame"];
CGFloat xCord = rect.origin.x;

Or you can also get x through that

CGFloat xCord = object.frame.origin.x;