iphone - iPad 3.2 & [MPMoviePlayerController setFullScreen :] not showing up

Question

我有一个通用应用程序，可以播放互联网上的电影。它必须支持 3.1.x 和 4.x。

为了使其正常工作，我在代码中设置了一个分支，用于检测 3.2 之前的设备并利用 MPMoviePlayerController，因为它应该在那里工作。

这是我准备播放器播放远程电影的方法:

- (void)registerForMovieNotifications {
    //for 3.2 devices and above
    if ([moviePlayer respondsToSelector:@selector(loadState)]) {
        LOG(@"moviePlayer responds to loadState, this is a 3.2+ device");

        //register the notification that the movie is ready to play
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(moviePlayerLoadStateChanged:)
                                                     name:MPMoviePlayerLoadStateDidChangeNotification
                                                   object:nil];

        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(didExitFullScreen:) 
                                                     name:MPMoviePlayerDidExitFullscreenNotification
                                                   object:nil];

        LOG(@"preparing moviePlayer...");
        [moviePlayer prepareToPlay];



       } else {
            //for pre-3.2 devices
            LOG(@"This is a 3.1.x device");

            //register the notification that the movie is ready to play
            [[NSNotificationCenter defaultCenter] addObserver:self
                                                     selector:@selector(moviePreloadDidFinish:)
                                                         name:MPMoviePlayerContentPreloadDidFinishNotification
                                                       object:nil];
        }

        //handle when the movie finished
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(moviePlayBackDidFinish:)
                                                     name:MPMoviePlayerPlaybackDidFinishNotification
                                                   object:nil];
    }
    - (void)readyPlayer {
        if (!moviePlayer) {
            moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:movieURL];
        } else {
            [moviePlayer setContentURL:movieURL];
        }

        [self registerForMovieNotifications];
    }

稍后我收到此通知，它会设置电影播放器​​的 View 等。

- (void) moviePlayerLoadStateChanged:(NSNotification*)notification {
    LOG(@"3.2/4.x - moviePlayerLoadStateChanged:");
    //unless state is unknown, start playback
    if ([moviePlayer loadState] != MPMovieLoadStateUnknown) {
        //remove observer
        [[NSNotificationCenter defaultCenter] removeObserver:self
                                                        name:MPMoviePlayerLoadStateDidChangeNotification
                                                      object:nil];

        //set the frame of the movie player to match
        self.view.autoresizesSubviews = YES;

        [[moviePlayer view] setFrame:self.view.bounds];
        [[moviePlayer view] setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight];
        [[moviePlayer view] setAutoresizesSubviews:YES];

        //add movie player as a subview
        [self.view addSubview:moviePlayer.view];
        [moviePlayer setFullscreen:YES];

        //play the movie
        [moviePlayer play];

    }
}

电影开始播放。这在 iPhone 4.2、4.3、iPad 4.2、4.3 上完美运行，但在 iPad 3.2 上失败。电影正在播放，但我看到的只是黑屏。

如果我删除 [moviePlayer setFullscreen:YES] 调用，我会在 3.2 中看到一个可见的正在播放的电影，但它不是“全屏”，因此它没有“完成”按钮，并且有我无法关闭屏幕。

我希望能得到一些关于这里发生的事情的帮助。谢谢!

Answer 1

我能够找到一个可接受的解决方案，但我仍然觉得这可能是一个错误。

如果我跳过对 setFullScreen 的调用，而只是手动将 controlStyle 设置为 MPMovieControlStyleFullScreen 那么它会给我一个基本正确的 View (工具栏大约低了 40 像素)。

然后我可以获得“完成”按钮，该按钮会触发 moviePlayer:didFinishPlaying 回调。

所以这很糟糕，我的代码中现在有一个臭味的 if 3.2 逻辑分支，但希望大多数人无论如何都会使用 4.0。