Comparison of two CGR

Question

I needed to check that the frame of my view is equal to the given CGRect. I tried to do it like this:

CGRect rect = CGRectMake(20, 20, 20, 20); if (self.view.frame == rect) { // do some stuff } 

However, I received the error message Invalid operands to binary expression('CGRect' (aka 'struct CGRect') and 'CGRect') . Why can't I just compare two CGRect s?

Answer 1

Use this:

 if (CGRectEqualToRect(self.view.frame, rect)) { // do some stuff } 

Answer 2

See the documentation for CGRectEqualToRect ().

 bool CGRectEqualToRect ( CGRect rect1, CGRect rect2 ); 

Answer 3

In Swift 3, it will be:

 frame1.equalTo(frame2)