Question

我制作iOS应用程序。

我使用MPMoviePlayerController，但这显示黑色背景
我认为这个问题可以通过这个URL解决，但我无法理解使用方式 MPMoviePlayerController background color won't stick

我的代码就是这个。

NSString *path = [[NSBundle mainBundle] pathForResource:@"movie_files" ofType:@"m4v"];
NSURL *videoURL = [NSURL fileURLWithPath:path];

moviePlayer =  [[MPMoviePlayerController alloc]
                initWithContentURL:videoURL];

//setting
moviePlayer.scalingMode =MPMovieScalingModeAspectFit;
moviePlayer.controlStyle=MPMovieControlStyleDefault;
moviePlayer.shouldAutoplay=NO;
[moviePlayer.view setFrame:CGRectMake(20, 20, 280, 200)];    

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

//clearColor
UIView *subV =[[UIView alloc]init];
for(subV in moviePlayer.backgroundView.subviews) {
    subV.backgroundColor = [UIColor clearColor];
}
[moviePlayer.view addSubview:subV];    
[self.view addSubview:moviePlayer.view];
//show white screen

请告诉明确的背景方式。

Answer 1

您需要将其更改为：

moviePlayer.backgroundView.backgroundColor = [UIColor clearColor];
for(UIView *aSubView in moviePlayer.view.subviews) {
    aSubView.backgroundColor = [UIColor clearColor];
}

Answer 2

单独设置背景视图的颜色对我来说不起作用。

我认为视图背景颜色也应该改变。我添加了一行代码，现在它很好用。整个视频背景现在都是透明的。 :)谢谢@Jordi

moviePlayer.backgroundView.backgroundColor = [UIColor clearColor];

moviePlayer.view.backgroundColor = [UIColor clearColor];

for(UIView *aSubView in moviePlayer.view.subviews) {
    aSubView.backgroundColor = [UIColor clearColor];
}

Answer 3

另一种选择是隐藏视频播放器，然后在准备好显示时显示它

警告需要IO6＆gt; =我相信：

https://stackoverflow.com/a/19459855/401896

MPMoviePlayerController存在黑色背景

3 个答案: