objective-c - iOS 6 无法自动旋转

Question

在我维护的应用程序中，在纵向和纵向颠倒模式下应该发生旋转。 (所有旋转均在摘要面板中启用。)

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    return interfaceOrientation==UIInterfaceOrientationPortrait || interfaceOrientation==UIInterfaceOrientationPortraitUpsideDown;
}

或

 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

无论我如何尝试，我都无法在 ios 6 中实现旋转准确

到目前为止我尝试过的事情:

-(NSUInteger)supportedInterfaceOrientations{
    return UIInterfaceOrientationMaskPortrait; 
}

-(NSInteger)supportedInterfaceOrientations{
NSInteger mask = 0;
if ([self shouldAutorotateToInterfaceOrientation: UIInterfaceOrientationLandscapeRight])
    mask |= UIInterfaceOrientationMaskLandscapeRight;
if ([self shouldAutorotateToInterfaceOrientation: UIInterfaceOrientationLandscapeLeft])
    mask |= UIInterfaceOrientationMaskLandscapeLeft;
if ([self shouldAutorotateToInterfaceOrientation: UIInterfaceOrientationPortrait])
    mask |= UIInterfaceOrientationMaskPortrait;
if ([self shouldAutorotateToInterfaceOrientation: UIInterfaceOrientationPortraitUpsideDown])
    mask |= UIInterfaceOrientationMaskPortraitUpsideDown;
return mask;
}

我尝试将其放入我的应用程序委托(delegate)中:

-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    return UIInterfaceOrientationMaskPortraitUpsideDown;
}

但我收到此错误:由于未捕获的异常“UIApplicationInvalidInterfaceOrientation”而终止应用程序，原因:“支持的方向与应用程序没有共同的方向，并且 shouldAutorotate 返回 YES”

尝试将其放入我的委托(delegate)中:

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    NSUInteger orientations = UIInterfaceOrientationMaskAll;

    if (self.window.rootViewController) {
        UIViewController* presented = [[(UINavigationController *)self.window.rootViewController viewControllers] lastObject];
        orientations = [presented supportedInterfaceOrientations];
    }
    return orientations; 
}

我阅读了所有有关它的讨论以及 shouldAutorotateToInterfaceOrientation 的弃用，但我仍然无法让它工作。

我快要失去它了

Answer 1

我的应用程序针对的是 IOS 5。我对 IOS 5 设备使用了 shouldAutorotateToInterfaceOrientation 方法(默认情况下)。并类别 UINavigationController 来处理 IOS 6 的方向。

#import "UINavigationController+Rotation_IOS6.h"

    @implementation UINavigationController (Rotation_IOS6)

    -(BOOL)shouldAutorotate
    {

            return YES;
    }

    -(NSUInteger)supportedInterfaceOrientations
    {

        return UIInterfaceOrientationMaskAll;
    }

    - (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
    {
        if([self.visibleViewController isMemberOfClass:NSClassFromString(@"SampleViewController")])
        {
            return UIInterfaceOrientationMaskLandscape | UIInterfaceOrientationMaskPortraitUpsideDown | UIInterfaceOrientationMaskPortrait;
        }
        return UIInterfaceOrientationPortrait;

    }

    @end