步骤一、注册通知

1:  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(statusBarOrientationChange:) name:UIApplicationDidChangeStatusBarOrientationNotification object:nil];

 

步骤二、判断方向

 

1:  - (void)statusBarOrientationChange:(NSNotification *)notification

2:   

3:  {

4:   

5:  UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];

6:   

7:  if (orientation == UIInterfaceOrientationLandscapeRight) // home键靠右

8:   

9:  {

10:   

11:  //

12:   

13:  }

14:   

15:  if (

16:   

17:  orientation ==UIInterfaceOrientationLandscapeLeft) // home键靠左

18:   

19:  {

20:   

21:  //

22:   

23:  }

24:   

25:  if (orientation == UIInterfaceOrientationPortrait)

26:   

27:  {

28:   

29:  //

30:   

31:  }

32:   

参考来源：