iPad2仅给出错误的宽度和高度？

Question

on any other device we use this code to set all views in landscape and everything fits great :

float width=[UIScreen mainScreen].bounds.size.width;
float height= [UIScreen mainScreen].bounds.size.height;

on the iPad 2 only , in order to make it work on landscape we have to swap the width and height , otherwise he puts views on portrait and they seems ugly.

Why is it happens only in iPad2 ?

Answer 1

It's not linked to the device but to iOS. Since iOS 8.0, the bounds is now dependent of the device orientation. I'm also swapping width and height like this :

CGRect ScreenBounds() { CGRect bounds = [UIScreen mainScreen].bounds; CGRect tmp_bounds = bounds; if(bounds.size.width < bounds.size.height) { bounds.size.width = tmp_bounds.size.height; bounds.size.height = tmp_bounds.size.width; } return bounds; }

Answer 2

Don't size your views relative to the screen, but relative to their container view. Simple as that.

Answer 3

I had same issue From iOS 8 UIScreen is interface oriented so you will get proper results on devices which are running on iOS 8.

In order to support iOS 7 as well you can use following util method:

+ (CGSize)screenSize {
CGSize screenSize = [UIScreen mainScreen].bounds.size;
if ((NSFoundationVersionNumber <= NSFoundationVersionNumber_iOS_7_1) && UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) {
    return CGSizeMake(screenSize.height, screenSize.width);
}
return screenSize;
}