iOS 控制单个控制器旋转

iOS 控制单个控制器旋转

控制单个ViewController 的旋转

//不旋转，保持竖屏

//iOS 5
- (BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    return (toInterfaceOrientation == UIInterfaceOrientationPortrait);
}
//iOS 6
- (BOOL)shouldAutorotate
{
    return NO;
}
- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationPortrait;
}
//始终保持横屏

//iOS 5
- (BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    return (toInterfaceOrientation == self.preferredInterfaceOrientationForPresentation);
}
//iOS 6
- (BOOL) shouldAutorotate
{
    return YES;
}
- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscapeRight;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationLandscapeRight;
}

然而上面的代码在有 导航条的情况下，并不好用；解决方式，为导航条UINavigationController 创建一个 分类，并使用如下分类的导航条 

@implementation UINavigationController (Rotation)
 -(BOOL)shouldAutorotate {
         return [[self.viewControllers lastObject] shouldAutorotate];
     }

 -(NSUInteger)supportedInterfaceOrientations {
         return [[self.viewControllers lastObject] supportedInterfaceOrientations];
     }

 - (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
         return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
     }
 @end

参考 http://blog.csdn.net/wudizhukk/article/details/8674393