我有一个 UINavigationController 堆栈中的所有 UIViewController 都是纵向的,除了最后一个是横向的。我当前的实现在推送时以纵向显示最后一个 View Controller ,但我可以旋转到横向,并且不能旋转回纵向。 如何在 View 被推送时强制旋转为横向?
我的 UINavigationController 子类:
@interface RotationViewController : UINavigationController
@end
@implementation RotationViewController
- (BOOL)shouldAutorotate
{
return YES;
}
- (NSUInteger)supportedInterfaceOrientations
{
if (self.topViewController.class == [LoadingViewController class])
{
return UIInterfaceOrientationMaskLandscape;
}
return UIInterfaceOrientationMaskPortrait;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
if (self.topViewController.class == [LoadingViewController class])
{
return UIInterfaceOrientationLandscapeLeft;
}
return UIInterfaceOrientationPortrait;
}
@end
我只想要横向的 View Controller :
@implementation LoadingViewController
- (BOOL)shouldAutorotate
{
return YES;
}
- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskLandscape;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return UIInterfaceOrientationLandscapeLeft;
}
@end
其他 View Controller 不实现这些方法中的任何一个。
Best Answer-推荐答案 strong>
我也有同样的情况。所以你可以在你的应用程序中实现下面的代码
- (void)viewDidAppearBOOL)animated
{
[super viewDidAppear:animated];
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft animated:NO];
CGAffineTransform landscapeTransform = CGAffineTransformMakeRotation(degreesToRadian(270));
landscapeTransform = CGAffineTransformTranslate (landscapeTransform, 0.0, 0.0);
[[self navigationController].view setTransform:landscapeTransform];
self.navigationController.view.bounds = CGRectMake(0.0, 0.0, 480, 320);
self.navigationController.navigationBar.frame = CGRectMake(0.0, 20.0, 480, 44.0);
}
-(void)viewWillDisappearBOOL)animated
{
[super viewWillDisappear:animated];
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:NO];
CGAffineTransform landscapeTransform = CGAffineTransformMakeRotation(degreesToRadian(0));
landscapeTransform = CGAffineTransformTranslate (landscapeTransform, 0.0, 0.0);
[[self navigationController].view setTransform:landscapeTransform];
self.navigationController.view.bounds = CGRectMake(0.0, 0.0, 320, 480);
self.navigationController.navigationBar.frame = CGRectMake(0.0, 20.0, 320.0, 44.0);
}
#define degreesToRadian(X) (M_PI * (X)/180.0)
注意:-
以上代码是针对iphone实现的。因此,如果您将其用于 ipad,请更改边界。
你不需要实现
- (BOOL)shouldAutorotate
- (NSUInteger)supportedInterfaceOrientations
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
View Controller 中的函数....所以删除这些方法....
关于iOS 6 – 强制 UINavigationController 内的 UIViewController 旋转,我们在Stack Overflow上找到一个类似的问题:
https://stackoverflow.com/questions/15127645/
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