使用 AVPlayer 传输音频

当在表视图中选择一行但它不播放时，我尝试使用 AVPlayer 播放 URL 中的音频。我究竟做错了什么？

这是代码：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *streamingString = [NSString stringWithFormat:@"%@.json?client_id=fc886d005e29ba78f046e5474e3fdefb", [streamURLArray objectAtIndex:indexPath.row]];
    NSURL *streamingURL = [NSURL URLWithString:streamingString];
    NSLog(@"%@", streamingURL);
    AVPlayer *player = [AVPlayer playerWithURL:streamingURL];
    [player play];
    player.actionAtItemEnd = AVPlayerActionAtItemEndNone;
}

当我记录它时，streamingURL 的一个例子是这样的。

http://api.soundcloud.com/tracks/146814101/stream.json?client_id=fc886d005e29ba78f046e5474e3fdefb

在 .h 文件中全局声明 AVAudioPlayer

像这样AVPlayer *player;

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *streamingString = [NSString stringWithFormat:@"%@.json?client_id=fc886d005e29ba78f046e5474e3fdefb", [streamURLArray objectAtIndex:indexPath.row]];
    NSURL *streamingURL = [NSURL URLWithString:streamingString];
    NSLog(@"%@", streamingURL);
    player = [AVPlayer playerWithURL:streamingURL];
    [player play];
    player.actionAtItemEnd = AVPlayerActionAtItemEndNone;
}