播放音乐错误和相对路径

Question

我正在尝试在我的应用程序中播放 mp3，经过大量研究，我仍然无法弄清楚如何进行相对路径，甚至无法使用绝对路径播放音乐。这就是我所拥有的：

//set music
NSError *error;
if (songChosen == 0)
{
    soundPath = @"/Users/aeubanks/Desktop/XCode Stuff/Apps/Game-Storyboard/Game-Storyboard/Amalgamation.mp3";
}
else if (songChosen == 1)
{
    soundPath = @"/Users/aeubanks/Desktop/XCode Stuff/Apps/Game-Storyboard/Game-Storyboard/BUTTERFLY.mp3";
}
audio = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:soundPath] error:&error];
if([[NSFileManager defaultManager] fileExistsAtPath:soundPath] == NO)
{
    NSLog(@"No File");
}

else
{
    NSLog(@"Yes File");
}

if(error != nil)
{
    NSLog(@"%@", error);
}
[audio prepareToPlay];

NSLog 是这样说的（做好准备）：

2012-08-04 15:52:02.415 游戏故事板[8430:10703] 是文件

2012-08-04 15:52:02.473 Game-Storyboard[8430:12303] 加载错误 /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn: dlopen( /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn，262）：找不到符号：__CFObjCIsCollectable 引用自：/System/Library/Frameworks/Security.framework/Versions/A/Security 预计在：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在 /System/Library/Frameworks/Security.framework/Versions/A/Security 2012-08-04 15:52:02.486 游戏故事板[8430:12303] 加载/System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn: dlopen(/System/) 时出错Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn，262）：找不到符号：__CFObjCIsCollectable 引用自：/System/Library/Frameworks/Security.framework/Versions/A/Security 预计在：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在 /System/Library/Frameworks/Security.framework/Versions/A/Security 2012-08-04 15:52:02.525 游戏故事板[8430:12303] 加载/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn: dlopen(/System/库/扩展/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn，262）：找不到符号：__CFObjCIsCollectable 引用自：/System/Library/Frameworks/Security.framework/Versions/A/Security 预计在：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在 /System/Library/Frameworks/Security.framework/Versions/A/Security 2012-08-04 15:52:02.546 Game-Storyboard [8430:12303] 加载/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn: dlopen(/System/库/扩展/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn，262）：找不到符号：__CFObjCIsCollectable 引用自：/System/Library/Frameworks/Security.framework/Versions/A/Security 预计在：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在 /System/Library/Frameworks/Security.framework/Versions/A/Security 2012-08-04 15:52:02.570 游戏故事板[8430:12303] 加载/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn: dlopen(/System/库/扩展/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn，262）：找不到符号：__CFObjCIsCollectable 引用自：/System/Library/Frameworks/Security.framework/Versions/A/Security 预计在：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在 /System/Library/Frameworks/Security.framework/Versions/A/Security 2012-08-04 15:52:02.582 游戏故事板[8430:12303] 加载/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn: dlopen(/System/) 时出错库/扩展/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn，262）：找不到符号：__CFObjCIsCollectable 引用自：/System/Library/Frameworks/Security.framework/Versions/A/Security 预计在：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation 在 /System/Library/Frameworks/Security.framework/Versions/A/Security

我也尝试将 soundPath 设置为 @"BUTTERFLY.mp3"/@"Amalgamation.mp3" 以及 @"Game-Storyboard/BUTTERFLY.mp3"/@"Game-Storyboard/Amalgamation.mp3"，并且我得到这个：

2012-08-04 15:58:55.763 游戏故事板[8470:10703] 没有文件

2012-08-04 15:58:55.767 Game-Storyboard[8470:10703] 错误域=NSOSStatusErrorDomain Code=-43 “操作无法完成。（OSStatus 错误 -43。）”

我不知道这一切意味着什么，所以我希望能得到一些帮助来解决这个问题。

Answer 1

我会做这样的事情（这里是一个 sn-p）：

if (songChosen == 0)
{
    NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:@"Amalgamation" ofType:@"mp3"]
    NSURL *soundFileURL = [[NSURL alloc] initFileURLWithPath: soundFilePath];
    NSError *error;
    AVAudioPlayer *aPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:&error];
}

我还建议阅读捆绑包。