小编Lag*_*o87的帖子

我正在尝试在我的iOS应用程序中播放音频文件.这是我目前的代码

NSString *soundFilePath = [NSString stringWithFormat:@"%@/test.m4a", [[NSBundle mainBundle] resourcePath]];

NSLog(@"%@",soundFilePath);
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: soundFilePath];

audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:nil];
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
[[AVAudioSession sharedInstance] setActive: YES error: nil];
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];

[audioPlayer setVolume:1.0];

audioPlayer.delegate = self;

[audioPlayer stop];
[audioPlayer setCurrentTime:0];
[audioPlayer play];

我正在检查一堆其他帖子,但他们通常都做同样的事情.我没有收到错误,但我没有听到模拟器或设备上播放任何音频.

这是我在模拟器上获得音频文件的路径

/Users/username/Library/Application Support/iPhone Simulator/5.1/Applications/long-numbered-thing/BookAdventure.app/test.m4a

任何帮助表示赞赏!

试试这个:

[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:&error];

if (error) {
    NSLog(@"Error setting category: %@", [error description]);
}

获取错误"错误设置类别:UIView"但不知道如何解决这个问题.不完全确定它告诉我的是什么.

请帮忙!

编辑

音频播放:

NSURL *audioFileURL = [[NSBundle mainBundle] URLForResource:@"DemoSong" withExtension:@"m4a"];
NSError *error;

self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:audioFileURL error:&error];

if (error) {
    NSLog(@"%@", [error localizedDescription]);
}

[_audioPlayer setNumberOfLoops:-1];
[_audioPlayer setMeteringEnabled:YES];
[_visualizer setAudioPlayer:_audioPlayer];

[_audioPlayer prepareToPlay];
[_audioPlayer play];
NSLog(@"play audio");