Question

我试图在UIWebView上播放YouTube视频，如下所示：

// Create the URL
_videoUrl = [NSURL URLWithString:[NSString stringWithFormat:@"https://www.youtube.com/watch?v=%@", _videoID]];

// Create the request with the URL
NSURLRequest *requestObj = [NSURLRequest requestWithURL:_videoUrl];

// Load the request into the Web View
[_webView loadRequest:requestObj];

youtube页面显示，当我对视频开始播放时，但它没有旋转。

我花了一周时间寻找不同的解决方案，通过实施＆＃34; shouldAutorotate＆＃34;和＃34; supportedInterfaceOrientations＆＃34;，没有成功！

我尝试的最后一件事是在视频以全屏模式播放时添加一个监听器，在AppDelegate.m中我添加了＆＃34; didFinishLaunchingWithOptions＆＃34;代码如下：

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

并实施：

- (void) moviePlayerWillEnterFullscreenNotification:(NSNotification*)notification {
self.allowRotation = YES; }

- (void) moviePlayerWillExitFullscreenNotification:(NSNotification*)notification {
self.allowRotation = NO; }

-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
if (self.forceLandscapeRight) {
    return UIInterfaceOrientationMaskLandscapeRight;
}
if (self.allowRotation) {
    return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}

return UIInterfaceOrientationMaskPortrait; }

问题在于，＃34; moviePlayerWillEnterFullscreenNotification＆＃34;或者＆＃34; moviePlayerWillExitFullscreenNotification＆＃34;被称为。

请帮忙！

Answer 1

找到答案：

我必须使用

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(youTubeStarted:) name:@"UIMoviePlayerControllerDidEnterFullscreenNotification" object:nil];
 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(youTubeFinished:) name:@"UIMoviePlayerControllerWillExitFullscreenNotification" object:nil];

而不是

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

在我的ViewControler中实现方法

-(BOOL) shouldAutorotate {
 return NO; }

-(NSUInteger)supportedInterfaceOrientations{
 return UIInterfaceOrientationMaskPortrait; }

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
 return UIInterfaceOrientationPortrait; }

有关详情：iOS 6.0+ autorotation for youtube embedded video

希望这会有所帮助：）

Answer 2

这是我在Swift中解决问题的方法。它基于上面的答案，但更简单：

func application(application: UIApplication, supportedInterfaceOrientationsForWindow window: UIWindow?) -> UIInterfaceOrientationMask {
  // if it's our window, portrait. Other windows are (probably) the fullscreen video player ;)
  if self.window == window {
    return .Portrait
  } else {
    return [.Portrait, .Landscape]
  }
}

Answer 3

我刚做了一些研究，我想出了支持iOS7和iOS8的解决方案。要仅在播放YouTube视频时允许旋转应用程序，请执行以下步骤：

AppDelegate.m

导入#import <MediaPlayer/MediaPlayer.h> 并实现函数＆＃34; supportedInterfaceOrientationsForWindow＆＃34;如下：

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

if ([[window.rootViewController presentedViewController]
     isKindOfClass:[MPMoviePlayerViewController class]] || [[window.rootViewController presentedViewController] isKindOfClass:NSClassFromString(@"MPInlineVideoFullscreenViewController")] || [[window.rootViewController presentedViewController] isKindOfClass:NSClassFromString(@"AVFullScreenViewController")]) {

    return UIInterfaceOrientationMaskAllButUpsideDown;
}else {

    if ([[window.rootViewController presentedViewController]
         isKindOfClass:[UINavigationController class]]) {

        // look for it inside UINavigationController
        UINavigationController *nc = (UINavigationController *)[window.rootViewController presentedViewController];

        // is at the top?
        if ([nc.topViewController isKindOfClass:[MPMoviePlayerViewController class]]) {
            return UIInterfaceOrientationMaskAllButUpsideDown;

            // or it's presented from the top?
        } else if ([[nc.topViewController presentedViewController]
                    isKindOfClass:[MPMoviePlayerViewController class]]) {
            return UIInterfaceOrientationMaskAllButUpsideDown;
        }
    }
}

return UIInterfaceOrientationMaskPortrait;
}

ViewController.m

在你的＆＃34; ViewController.m＆＃34;上，将以下代码添加到＆＃34; ViewDidLoad＆＃34;，此代码允许您在视频以全屏模式播放时创建一个监听器：

- (void)viewDidLoad
{
    [super viewDidLoad];

    // SetUp notifications when video gets played and stopped
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(youTubeStarted:) name:@"UIMoviePlayerControllerDidEnterFullscreenNotification" object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(youTubeFinished:) name:@"UIMoviePlayerControllerWillExitFullscreenNotification" object:nil];

    // Init The Video WebView
    [self initVideoWebView];
}

此功能允许您使用YouTube网址启动WebView：

- (void) initVideoWebView {

    // Create the URL
    _videoUrl = [NSURL URLWithString:[NSString stringWithFormat:@"https://www.youtube.com/watch?v=%@", _videoID]];

    // Create the request with the URL
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:_videoUrl];

    // Load the request into the Web View
    [_webView loadRequest:requestObj];
}

最后要做的是在ViewControler上实现以下功能：

-(BOOL) shouldAutorotate {
 return NO; }

-(NSUInteger)supportedInterfaceOrientations{
 return UIInterfaceOrientationMaskPortrait; }

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
 return UIInterfaceOrientationPortrait; }

-(NSUInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskPortrait; }

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
    return UIInterfaceOrientationPortrait; }

如果这有帮助，上升率：）

全屏播放YouTube视频，仅允许针对iOS7和iOS8的视频进行旋转

3 个答案: