iOS在某特定界面强制横屏

- (UIInterfaceOrientationMask)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskAll;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation{
return NO;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
return UIInterfaceOrientationLandscapeRight;
}

if (![UIDevice currentDevice].generatesDeviceOrientationNotifications) {
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
}
NSLog(@"%d",[UIDevice currentDevice].orientation);

[[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];