iOS横竖屏设置

 1 - (BOOL)shouldAutorotate{
 2     return NO;
 3 }
 4 - (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
 5      return UIInterfaceOrientationLandscapeRight;
 6 }
 7 
 8 -(UIInterfaceOrientationMask)supportedInterfaceOrientations{
 9     return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight ;
10 }