多媒体播放----音乐播放

NSData *audioData=[NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"1" ofType:@"mp3"]];    _audio=[[AVAudioPlayer alloc]initWithData:audioData error:nil];    //音量    _audio.volume=1;    //设置播放速率    _audio.enableRate=YES;    //1.0正常 0.5减半 2.0两倍    _audio.rate=1;    //设置声道    //-1.0左声道,0.0双声道,1.0右声道    _audio.pan=0.0;    //如果音频没有播放,currentTime指从30秒位置开始播放    //如果音频正在播放,currentTime指调到30秒的位置播放//currentTime可以理解为当前播放时间,获取播放时间时也是currentTime    _audio.currentTime=30;//播放[_audio play];

 NSURL *url=[NSURL URLWithString:@"http://localhost:8080/downloadSrver/1.mp3"];        NSURLRequest *request=[NSURLRequest requestWithURL:url];        NSData *data=(NSData *)[NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];        _audio=[[AVAudioPlayer alloc]initWithData:data error:nil];

if (_audio.playing==YES) {        [_audio pause];        [button setTitle:@“continue” forState:UIControlStateNormal];    }    else    {        [_audio play];        [button setTitle:@"pause" forState:UIControlStateNormal];    }

[_audio stop];