How To Get UIView Height Only? - objective-c

Question

I have this code :
_width.text = NSStringFromCGRect(_screen.frame);
and it gives me on my iPod 5:
{{0,20}, {320,548}}
how to get only height value = 548 so that I can use it to calculate another components.
thank you.

Answer 1

I guess you want a CGFloat, not a NSString if you want to calculate other components.
CGFloat height = _screen.frame.size.height;
Or if you want a string after all:
_width.text = [NSString stringWithFormat:#"%f", _screen.frame.size.height];
The frame property of UIView is a CGRect struct. To learn about CGRect go take a look at the documentation.

Answer 2

I would encourage you to use CGGeometry check the documentation, in your case use CGRectGetHeight().
CGFloat height = CGRectGetHeight(_screen.frame);

Answer 3

Try to use like this...
You can get Height Like this...
CGFloat height = _screen.frame.size.height;
_width.text = [NSString stringWithFormat:#"%f",height];
You can get Width Like this...
CGFloat width = _screen.frame.size.width;
_width.text = [NSString stringWithFormat:#"%f",width];
You can get x coordinate Like this Like this...
CGFloat x = _screen.frame.origin.x;
You can get y coordinate Like this Like this...
CGFloat y = _screen.frame.origin.y;

Answer 4

_screen.frame is a struct with a CGSize and a CGPoint.
CGPoint origin = _screen.frame.origin;
CGSize size = _screen.frame.size;
The struct CGPoint has the members x and y
CGFloat x = origin.x; // float on 32bit and double on 64bit
CGFloat y = origin.y;
The struct CGSize has the members width and height
CGFloat width = size.width;
CGFloat height = size.height;
You can print a message with a formatted NSString or C-String with the format specifier %
NSString *output = [NSString stringWithFormat:#"My screen height is: %f", height];
If you want to show the height as 543 not as 543.0, then use the float string specifier in the NSString creation method
NSString *string = [NSString stringWithFormat:#"Integer height is: %.0f", height];
// even with values like 0.9999 the output would be "Integer height is: 0"
If the property _width.text is a NSString.
_width.text = output;