Iphone: Get current view dimensions or screen dimensions

Question

Hello i want to get the width and height of my main view. I want the correct value in landscape or portrait mode. I've tried the following:

 NSLog(@"aaa %f", [UIScreen mainScreen].applicationFrame.size.width); NSLog(@"zzz %f", self.view.frame.size.width);

These give 300 in landscape and 320 in portrait mode, yes it is larger in portrait mode. So.. my view takes up the whole screen (- status bar) so I expect 480 in landscape mode and 320 in portrait mode. What happened to the rest of the pixels. Do I have to hardcode these values? Thanks.

elp · Accepted Answer · 2014-07-16 16:25:37Z

104

Do either of the following lines work for you?

[[UIScreen mainScreen] bounds].size.height [[UIScreen mainScreen] bounds].size.width

I suppose you can subtract the height of the status bar? Maybe i'm not understanding your question

edited Jul 16, 2014 at 16:25

elp

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answered Jan 6, 2011 at 12:38

Omar

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4 Comments

gyozo kudor Over a year ago

This works it returns the same width and height for both orientations but at least it works. And yes I need to substract the status bar.

Aaron Brager Over a year ago

@Omar you need an extra [ before the UIScreen.

Andr3a88 Over a year ago

From iOS8 [UIScreen mainScreen].bounds is interface-oriented (look at session "View Controller Advancements in iOS 8" of WWDC 2014), this means that in landscape mode on iOS8 height and width are reversed.

Omar Over a year ago

@Andr3a88, Thanks for that additional info. This means that the original answer is even more satisfactory than it was before.

jithinroy · Accepted Answer · 2011-01-06 11:27:59Z

Try this :

UIWindow* window = [UIApplication sharedApplication].keyWindow; NSLog(@"%f",window.frame.size.width);

sash · Accepted Answer · 2014-09-25 13:58:24Z

Useful macros that will give you the correct size based on the device orientation:

#define SCREEN_WIDTH ((([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortrait) || ([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortraitUpsideDown)) ? [[UIScreen mainScreen] bounds].size.width : [[UIScreen mainScreen] bounds].size.height) #define SCREEN_HEIGHT ((([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortrait) || ([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortraitUpsideDown)) ? [[UIScreen mainScreen] bounds].size.height : [[UIScreen mainScreen] bounds].size.width)

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