步骤一、注册通知

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

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

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：http://www.2cto.com/kf/201410/345818.html

巴特西

iOS开发——检测屏幕旋转

步骤一、注册通知

步骤二、判断方向

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