ios - 使用他的路径获取音频文件的信息 - Objective-c iOS

Question

实际上，我正在用这个简单的代码部分来播放一首歌:

    NSURL *url=[NSURL fileURLWithPath:clickedPath];
    AVPlayer *player = [AVPlayer playerWithURL:url];


    AVPlayerViewController *controller = [[AVPlayerViewController alloc] init];
    [self presentViewController:controller animated:YES completion:nil];
    controller.player = player;
    [player play];

我想做的是使用 AVPlayerViewController 的 contentOverlayView 属性显示的自定义 View 来显示歌曲的信息(艺术家、专辑名称和插图等)。我在这里到处搜索，但没有发现任何对我的情况有用的东西(找到 MPMediaPlayer 解决方案或不起作用的解决方案)。

你能帮我一下吗？我愿意测试您的建议并进行讨论!

提前致谢

Answer 1

NSString *path = [[NSBundle mainBundle] pathForResource:@"youraudiomp3filename" ofType:@"mp3"];

NSURL *url=[NSURL fileURLWithPath:path];
AVPlayer *player = [AVPlayer playerWithURL:url];

AVAsset *asset = [AVURLAsset URLAssetWithURL:url options:nil];

NSArray *metadata = [asset commonMetadata];
NSString *title;
NSString *artist;
NSString *albumName;
UIImageView *imageView;
for (AVMetadataItem *item in metadata) {
    if ([[item commonKey] isEqualToString:@"title"]) {
        title = (NSString *)[item value];
    }

    if ([[item commonKey] isEqualToString:@"artist"]) {
        artist = (NSString *)[item value];
    }

    if ([[item commonKey] isEqualToString:@"albumName"]) {
        albumName = (NSString *)[item value];
    }

    if ([[item commonKey] isEqualToString:@"artwork"]) {
        NSData *data = [(NSDictionary *)[item value] objectForKey:@"data"];
        UIImage *img = [UIImage imageWithData:data] ;
        imageView.image = img;
        continue;
    }
}

然后您可以将 Assets 设置为您的 AVPlayerViewController 的播放器，播放并呈现。