ios代码切换横竖屏

在想要切换的ViewController类中添加以下三个方法

1. 竖屏

-(NSUInteger)supportedInterfaceOrientations{

    return UIInterfaceOrientationMaskPortrait;

}

- (BOOL)shouldAutorotate

{

    return NO;

}

-(UIInterfaceOrientation)preferredInterfaceOrientationForPresentation

{

    return UIInterfaceOrientationPortrait;

}

1. 横屏

- (BOOL)shouldAutorotate

{

    return NO;

}

-(UIInterfaceOrientation)preferredInterfaceOrientationForPresentation

{

    return UIInterfaceOrientationLandscapeRight;

}

-(NSUInteger)supportedInterfaceOrientations

{

    return UIInterfaceOrientationMaskLandscapeRight;

}

但是值得一提的是：界面之间的跳转应当是模式跳转，否则设置不会达到切换效果，如果通过导航栏进行跳转，push操作是延续上一个的横竖屏状态