objective-c - 仅支持一个 View 的不同方向 iOS 6

Question

我只想在我的应用程序中将我的一个 View 旋转到向左横向或向右横向。我的所有其他 View 都处于纵向模式，并且我已将我的应用程序设置为仅支持纵向模式。随着 iOS 6 中方向的改变，我不知道该怎么做。我已经尝试了下面发布的内容。谁能告诉我我做错了什么？谢谢!

-(BOOL)shouldAutorotate {
return YES;
}

-(NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{

return UIInterfaceOrientationMaskLandscapeRight | UIInterfaceOrientationMaskLandscapeLeft;
} 

我也试过:

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(didRotate:)
                                            name:UIDeviceOrientationDidChangeNotification
                                           object:nil];
return YES;//UIInterfaceOrientationMaskLandscapeRight | UIInterfaceOrientationMaskLandscapeLeft;
} 


 -(void)didRotate:(NSNotification *)notification {
 UIDeviceOrientation orientation = [[notification object] orientation];

if (orientation == UIDeviceOrientationLandscapeLeft) {
    [theImage setTransform:CGAffineTransformMakeRotation(M_PI / -2.0)];
    [self.view setTransform:CGAffineTransformMakeRotation(M_PI / 2.0)];
} else if (orientation == UIDeviceOrientationLandscapeRight) {
    [theImage setTransform:CGAffineTransformMakeRotation(M_PI / -2.0)];
    [self.view setTransform:CGAffineTransformMakeRotation(M_PI / -2.0)];
} else if (orientation == UIDeviceOrientationPortraitUpsideDown) {
    [theImage setTransform:CGAffineTransformMakeRotation(M_PI / -2.0)];
    [self.view setTransform:CGAffineTransformMakeRotation(M_PI / -2.0)];
} else if (orientation == UIDeviceOrientationPortrait) {
    [theImage setTransform:CGAffineTransformMakeRotation(M_PI / 2.0)];
    [self.view setTransform:CGAffineTransformMakeRotation(M_PI / 2.0)];
}
}

Answer 1

这对我有用 How to force a UIViewController to Portrait orientation in iOS 6

从 UINavigationController 覆盖旋转方法创建一个新类别:

-(BOOL)shouldAutorotate
{
    return [self.topViewController shouldAutorotate];
}

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

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return [self.topViewController preferredInterfaceOrientationForPresentation];
}

@end