iphone - iPad 3.2和[MPMoviePlayerController setFullScreen:]未显示

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。

为了使它起作用，我在代码中有一个分支，可以检测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式：

- (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];
    }

稍后我会收到此通知，并设置电影播放器​​的视图等。

- (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];

    }
}

和电影播放。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。电影播放了，但是我得到的只是黑屏。

如果取消[moviePlayer setFullscreen:YES]调用，我会在3.2中看到可见的正在播放的电影，但是它不是“全屏”的，因此它没有“完成”按钮，因此我无法关闭屏幕。

我很乐意为您提供帮助。谢谢！

最佳答案

我能够找到一个可以接受的解决方案，但是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，那么它给我的视图基本上是正确的（工具栏太低了40像素）。

然后，我可以得到“完成”按钮，它会触发moviePlayer:didFinishPlaying回调。

因此，我现在的代码中有一个臭味很大的if 3.2逻辑分支，这很令人讨厌，但是希望大多数人仍然会使用4.0。

关于iphone - iPad 3.2和[MPMoviePlayerController setFullScreen:]未显示，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/5629079/