将视图控制器frame.height和frame.width交换为iOS 8

Question

I'm updating an app which runs in landscape and I'm testing in the simulator and on an iPhone 5 running iOS 8. The results from my view controller's value for self.view.frame.size.width are the values I've always received for self.view.frame.size.height in iOS 7 and earlier. Many elements now show with the x and y coordinates now flipped accordingly.

I'm looking for an elegant solution which gets the same behavior as before, perhaps this is not possible with iOS 8 in landscape mode?

Answer 1

As pointed by the user nyekimov, it's a new behavior of iOS 8. There was something related in WWDC 2014 Session 214. Hope this reference helps :) To solve the problem I just added a verification of iOS 8 and iPad and swapped the width with height. (I just got this problem on iPad, that's why I made only for it)

Good luck ! :D

Answer 2

I ran into the same issue with my application which also runs solely in Landscape mode - I simply used an if statement to correct the issue wherever it occurs.

if(self.view.frame.size.height > self.view.frame.size.width) { then you are using iOS versions < 8 and the API is still referencing portrait dimensions. use your existing code. } else { you are using iOS 8 and you will need to alter your width/height references }

If your application switches orientation then you may need to grab the orientation of the device also - see device orientation

Hope this helps.

Answer 3

If we try to access the values of width and height from self.view.frame.size in viewWillLayoutSubviews instead from viewWillAppear: will give the proper values.

This worked for me :)