Question

我想在我的应用中播放两首以上的歌曲。我怎么能用AVAudioPlayer做到这一点？

Answer 1

我打算填写答案，但谷歌提供了一个非常好的答案：

http://www.iphonedevsdk.com/forum/iphone-sdk-development/27285-play-sequence-audio-files-avaudioplayer.html

页面中的第一段代码将按顺序调用所有声音：

- (void)playSoundSequence { 

    // Make array containing audio file names 
    NSArray  *theSoundArray = [NSArray arrayWithObjects:@"one",@"two",nil];

    int totalSoundsInQueue = [theSoundArray count];

    for (int i=0; i < totalSoundsInQueue; i) {

        NSString *sound = [theSoundArray objectAtIndex:i];

                // Wait until the audio player is not playing anything
        while(![audioPlayer isPlaying]){

            AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] 
                                                pathForResource:sound ofType:@"wav"]] error:NULL];
            self.audioPlayer = player;
            [player release];
            [audioPlayer setVolume:1.0f];
            [audioPlayer play];
            //Increment for loop counter & move onto next iteration
                        i++;      
        }
    }

}

但是，你可能最好使用AVAudioPlayerDelegate：

如果你不想在循环中等待，你也可以制作你的控制器AVAudioPlayerDelegate和实现

代码：

- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag

当到达音频文件的末尾时，将调用此方法那一点你会开始播放下一个音频文件。然后将再次调用audioPlayerDidFinishPlaying 完成比赛，然后你开始下一场比赛等等。

如何使用AVAudioPlayer播放两首以上的歌曲

1 个答案: