Question

我正在使用MPMoviePlayerViewController在我的应用中显示视频。有用！唯一的问题是电影播放前有黑色闪光。

如何摆脱黑色闪光？我见过其他线程，但它们似乎没有与MPMoviePlayerViewController一起使用的解释，并且对于像我这样的新手来说是足够具体/详细的（大部分用于MPMoviePlayerController）。

非常感谢任何帮助！

NSString *filepath = [[NSBundle mainBundle] pathForResource:@"aiw_intro_video" ofType:@"mp4"];
NSURL    *fileURL = [NSURL fileURLWithPath:filepath];

MPMoviePlayerViewController *mpvc = [[MPMoviePlayerViewController alloc] init];
mpvc.moviePlayer.movieSourceType = MPMovieSourceTypeFile;
mpvc.moviePlayer.controlStyle = MPMovieControlStyleNone;
[mpvc.moviePlayer setContentURL:fileURL];
[mpvc.moviePlayer play];

[self presentViewController:mpvc animated:NO completion:NULL];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:mpvc.moviePlayer];

Answer 1

经过无休止的迭代和调整后，我偶然发现了使用MPMoviePlayerController的解决方案。

不要忘记在.h文件中声明属性，例如

@property (strong, nonatomic) MPMoviePlayerController *moviePlayer;

然后

// Add default image to smooth transition
UIImage *myImage = [UIImage imageNamed:@"aiw_launch1136_black.png"];
self.videoStartFrame.image = myImage;

// Play the intro video
self.moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"aiw_intro_video" ofType:@"mp4"]]];

self.moviePlayer.movieSourceType = MPMovieSourceTypeFile;
self.moviePlayer.controlStyle = MPMovieControlStyleNone;
[self.moviePlayer prepareToPlay];
[self.moviePlayer play];
[self.moviePlayer.view setFrame:self.view.bounds];

[self.view addSubview:self.moviePlayer.view];

self.moviePlayer.view.hidden = YES;

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(isMovieReady:) name:MPMoviePlayerLoadStateDidChangeNotification object:self.moviePlayer];


// Detect that the video is ready and unhide the view

-(void)isMovieReady:(NSNotification *)notification {

MPMoviePlayerController *moviePlayer = [notification object];

if(moviePlayer.loadState & (MPMovieLoadStatePlayable | MPMovieLoadStatePlaythroughOK))
    {
    self.moviePlayer.view.hidden = NO;
    }
}

MPMoviePlayerViewController - 视频加载时如何消除黑色闪光？

1 个答案: