What does this mean? initWithFrame:CGRectZero]

Question

I created switch in cellForRowAtIndexPath like this.

UISwitch *switchView = [[UISwitch alloc] initWithFrame:CGRectZero];

CGRectZero is equivalent to CGRectMake(0,0,0,0). But, switch is seen in normal size. I didn't specified actuall size. Please explain to me how above code works.

Answer 1

UISwitch is not customizable, this also applies to the size.

UISwitch overrides initWithFrame: and enforces a size appropriate for the control. The size components of the given rectangle are ignored.