iOS开发——检测屏幕旋转

iOS开发——检测屏幕旋转
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：http://www.2cto.com/kf/201410/345818.html
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原文地址：https://www.cnblogs.com/zeyang/p/4457913.html

iOS开发——检测屏幕旋转

步骤一、注册通知

步骤二、判断方向