如何从iPhone上的在线网址播放音频

Question

我知道很多人之前已经问过这个问题,但是我不知道为什么这在我的应用程序中不能用于x-code和objective c!

基本上,我想通过网址在应用程序中播放音频.只需使用Apple网站上的测试音频,我的代码就是:

NSString *playString = @"http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8";

//Converts songURL into a playable NSURL
NSURL *playURL = [NSURL URLWithString:playString];

AVAudioPlayer *backgroundMusicPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:playURL error:&error];

if (backgroundMusicPlayer == nil) {
    NSLog(@"%@", [error description]);
}
else {
    [backgroundMusicPlayer prepareToPlay];
    [backgroundMusicPlayer play];
}

它出现以下错误:

错误域= NSOSStatusErrorDomain代码= -43"无法完成操作.(OSStatus错误-43.)

当我谷歌时,我找不到任何东西.有任何想法吗？我应该尝试其他音频流吗？或者有没有人有一个有效的例子？是因为我使用的是iPhone模拟器而不是真正的iPhone吗？

编辑:

请注意 - 当我说URL我的意思是从一个真实的网站,如" http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8 "我不想首先下载这首歌,我希望能够在下载时播放它!谢谢

Answer 1

使用AVPlayer从url播放mp3文件

-(void)playselectedsong{

    AVPlayer *player = [[AVPlayer alloc]initWithURL:[NSURL URLWithString:urlString]];
    self.songPlayer = player;
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(playerItemDidReachEnd:)
                                                 name:AVPlayerItemDidPlayToEndTimeNotification
                                               object:[songPlayer currentItem]];
    [self.songPlayer addObserver:self forKeyPath:@"status" options:0 context:nil];
    [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(updateProgress:) userInfo:nil repeats:YES];

    [self.songPlayer play];

}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {

    if (object == songPlayer && [keyPath isEqualToString:@"status"]) {
        if (songPlayer.status == AVPlayerStatusFailed) {
            NSLog(@"AVPlayer Failed");

        } else if (songPlayer.status == AVPlayerStatusReadyToPlay) {
            NSLog(@"AVPlayerStatusReadyToPlay");


        } else if (songPlayer.status == AVPlayerItemStatusUnknown) {
            NSLog(@"AVPlayer Unknown");

        }
    }
}

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

 //  code here to play next sound file

}