UiNavigationController中的iOS 6 AutoRotate

Question

我的应用程序中有UiNavigationController。我希望只有一个屏幕可以旋转，所以我放在这个类中：

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
    return YES;
}

-(BOOL)shouldAutorotate {
    return YES;
}

-(NSInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskAll;
}

但发生的问题是在应用程序的屏幕上发生旋转。我怎样才能禁用它？

Answer 1

对于iOS 6，我在我的应用程序中使用以下代码，它允许您为每个视图控制器单独指定旋转：

AppDelegate.m -

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{NSUInteger orientations =UIInterfaceOrientationMaskAllButUpsideDown;
if(self.window.rootViewController){
UIViewController *presentedViewController = [[(UINavigationController *)self.window.rootViewController viewControllers] lastObject];
orientations = [presentedViewController supportedInterfaceOrientations];
}
return orientations;
}

ViewController.m -

- (NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskPortrait;
}

我相信代码的原创性功劳可以参考Ray Wenderlich的"iOS 6 by Tutorials“一书。Ray Wenderlich website

Answer 2

在您只想自动旋转的类中使用以下代码：

@interface UITabBarController (rotation)
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation;
- (NSUInteger)supportedInterfaceOrientations;
- (BOOL)shouldAutorotate;
@end


@implementation UITabBarController (rotation)
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    if ([self.selectedViewController isKindOfClass:[UINavigationController class]])
    {
        UINavigationController *navController = (UINavigationController *) self.selectedViewController;
        if ([[navController visibleViewController] isKindOfClass:[CLASS_NAME_FOR_ROTATION class]])
            return YES;
    }
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (NSUInteger)supportedInterfaceOrientations
{
    if ([self.selectedViewController isKindOfClass:[UINavigationController class]])
    {
        UINavigationController *navController = (UINavigationController *) self.selectedViewController;
        if ([[navController visibleViewController] isKindOfClass:[CLASS_NAME_FOR_ROTATION class]])
            return UIInterfaceOrientationMaskAll;
    }
    return UIInterfaceOrientationMaskPortrait;
}

- (BOOL)shouldAutorotate
{
    if ([self.selectedViewController isKindOfClass:[UINavigationController class]])
    {
        UINavigationController *navController = (UINavigationController *) self.selectedViewController;
        if ([[navController visibleViewController] isKindOfClass:[CLASS_NAME_FOR_ROTATION class]])
            return YES;
    }
    return NO;

}

@end

在要旋转的类(即导航控制器堆栈上的前一个类)的父视图控制器中使用此代码。

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationPortrait;
}

Answer 3

在您的appDelegate中添加以下代码

@property(nonatomic,assign)BOOL shouldRotate;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    shouldRotate=NO;
}
-(void)shouldAutoRotate:(BOOL)rotate
{
    self.shouldRotate=rotate;
}

并在rootview控制器中添加以下代码

#import "AppDelegate.h"
#define myAppDelegate (AppDelegate *)[[UIApplication sharedApplication] delegate]

- (NSUInteger)supportedInterfaceOrientations
{
 if(![myAppDelegate shouldRotate])
     return UIInterfaceOrientationMaskPortrait;
 else
     return UIInterfaceOrientationMaskAllButUpsideDown;
}

在那之后，在你想要旋转的视图控制器中添加这个代码

- (void)viewDidLoad
{
    [super viewDidLoad];
    [myAppDelegate shouldAutoRotate:YES];
}

-(void)viewWillDisappear:(BOOL)animated
{
    [myAppDelegate shouldAutoRotate:NO];
}

我为我的一个项目(IOS7)做过这样的事情，.It非常适合我。