MPInlineVideoFullscreenViewController在iPhone 6/iOS 8中与UIWebView的旋转

我有一个非常简单的应用程序。它读取XML提要并显示内容。有时，内容会随YouTube视频一起提供。因此，我在AppDelegate中添加了以下内容

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {

id presentedViewController = [window.rootViewController presentedViewController];
NSString *className = presentedViewController ? NSStringFromClass([presentedViewController class]) : nil;

if (window && [className isEqualToString:@"MPInlineVideoFullscreenViewController"]) {
    return UIInterfaceOrientationMaskAll;
} else {
    return UIInterfaceOrientationMaskPortrait;
}
}

在[_windowsetRootViewController:rootTabBarController]之后；在didFinishLaunchingWithOptions中。它工作得非常好。该应用程序始终锁定纵向，并且仅在播放视频时允许水平查看

我现在正在用iPhone 6/Plus支持将我的应用升级到iOS 8。我已经创建了一个启动屏幕xib来实现这一点。一切都很好。该应用程序在iPhone6/Plus中看起来非常清晰，不再升级

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但是，上面的旋转代码不再有效。有什么建议吗？谢谢。

在iOS8下，您必须检查AVFullScreenViewController而不是MPInlineVideoFullscreenViewController

例如：

static NSString * const VIDEO_CONTROLLER_CLASS_NAME_IOS7 = @"MPInlineVideoFullscreenViewController";
static NSString * const VIDEO_CONTROLLER_CLASS_NAME_IOS8 = @"AVFullScreenViewController";

- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{
    if ([[window.rootViewController presentedViewController] isKindOfClass:NSClassFromString(VIDEO_CONTROLLER_CLASS_NAME_IOS7)] ||
    [[window.rootViewController presentedViewController] isKindOfClass:NSClassFromString(VIDEO_CONTROLLER_CLASS_NAME_IOS8)]) {

        return UIInterfaceOrientationMaskAllButUpsideDown;
    }
    else {
        return UIInterfaceOrientationMaskPortrait;
    }
}

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处理MPMoviePlayerController定向支持的一种更为简洁的方法是在AppDelegate中添加MPMoviePlayer通知的观察者MPMoviePlayerWillerInterFullScreenNotification和MPMoviePlayerWillerExitFullScreenNotification。每当收到通知时，在进入全屏时将allowOrientation标志设置为YES，在退出全屏时将其设置为NO。由于这些通知是在系统调用SupportedInterfaceOrientionsForWindow之前收到的，因此allowOrientation标志可在SupportedInterfaceOrientionsForWindow函数中用于设置适当的方向

IMPLEMENTATION: 

@interface AppDelegate ()

@property(assign) BOOL allowOrientationChange;

@end


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.

    self.allowOrientationChange = NO;

    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(setAllowOrientationChangeFlagToYES:)
                                                 name:MPMoviePlayerWillEnterFullscreenNotification
                                               object:nil];

    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(setAllowOrientationChangeFlagToNO:)
                                                 name:MPMoviePlayerWillExitFullscreenNotification
                                               object:nil];

    return YES;
}

-(void)setAllowOrientationChangeFlagToYES:(NSNotification*)aNotification{
    self.allowOrientationChange = YES;
}

-(void)setAllowOrientationChangeFlagToNO:(NSNotification*)aNotification{
    self.allowOrientationChange = NO;
}



- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{

    if (self.allowOrientationChange) {
        return UIInterfaceOrientationMaskAllButUpsideDown;
    }
    else{
        return UIInterfaceOrientationMaskPortrait;
    }
}

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是的，您必须返回正确类型的UIInterfaceOrientationMaskinstead，即nsInteger。我相应地更新了代码片段。