CGRectIntegral what is the usage of it?

Question

How does one use the CGRectIntegral function? I understand it\'s purpose.

The documentation isn\'t clear on it\'s exact use.

Answer 1

CGRectIntegral Method is used to create integer rect . I mean to say suppose if you calculate frame in app you may get frames value in float.

Setting float value as frame to some UIElement like UILabel would make the text looks blur. To avoid that, we use CGRectIntegral.Please look at the example below,

NSLog(@"%@",NSStringFromCGRect(   CGRectIntegral(CGRectMake(0, 15.6, 16.1, 20.2))));

This will print, {0,15},{17,21}.

This explanation is found in the header file.

/* Expand `rect' to the smallest rect containing it with integral origin and
   size. */