Nslog c 结构(如 CGRect 或 CGPoint)可能吗？

Question

I want to be able to debug C structures without having to explicitly type every property that they consist of.

i.e. I want to be able to do something like this:

CGPoint cgPoint = CGPointMake(0,0);
NSLog(@"%@",cgPoint);

Obviously the '%@' won't work, hence the question.

转载于:https://stackoverflow.com/questions/550195/is-it-possible-to-nslog-c-structs-like-cgrect-or-cgpoint

Answer 1

You can try this:

NSLog(@"%@", NSStringFromCGPoint(cgPoint));

There are a number of functions provided by UIKit that convert the various CG structs into NSStrings. The reason it doesn't work is because %@ signifies an object. A CGPoint is a C struct (and so are CGRects and CGSizes).