Question

我试图在我的应用程序中播放mp3，经过大量的研究，我仍然无法弄清楚如何进行相对路径，甚至无法通过绝对路径播放音乐。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说（准备好了）：

2012-08-04 15：52：02.415 Game-Storyboard [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     参考自：/System/Library/Frameworks/Security.framework/Versions/A/Security     预期在：/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中   2012-08-04 15：52：02.486 Game-Storyboard [8430：12303]加载/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     参考自：/System/Library/Frameworks/Security.framework/Versions/A/Security     预期在：/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中   2012-08-04 15：52：02.525 Game-Storyboard [8430：12303]加载/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn：dlopen（/ System / Library / Extensions / AppleHDA.kext / Contents / PlugIns / AppleHDAHALPlugIn.bundle / Contents / MacOS / AppleHDAHALPlugIn，262）：找不到符号：__ CFObjCIsCollectable     参考自：/System/Library/Frameworks/Security.framework/Versions/A/Security     预期在：/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中   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 / Library / Extensions / AppleHDA.kext / Contents / PlugIns / AppleHDAHALPlugIn.bundle / Contents / MacOS / AppleHDAHALPlugIn，262）：找不到符号：_ _CFObjCIsCollectable     参考自：/System/Library/Frameworks/Security.framework/Versions/A/Security     预期在：/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中   2012-08-04 15：52：02.570 Game-Storyboard [8430：12303]加载/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn：dlopen（/ System / Library / Extensions / AppleHDA.kext / Contents / PlugIns / AppleHDAHALPlugIn.bundle / Contents / MacOS / AppleHDAHALPlugIn，262）：找不到符号：__ CFObjCIsCollectable     参考自：/System/Library/Frameworks/Security.framework/Versions/A/Security     预期在：/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中   2012-08-04 15：52：02.582 Game-Storyboard [8430：12303]加载/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn：dlopen（/ System / Library / Extensions / AppleHDA.kext / Contents / PlugIns / AppleHDAHALPlugIn.bundle / Contents / MacOS / AppleHDAHALPlugIn，262）：找不到符号：_ _CFObjCIsCollectable     参考自：/System/Library/Frameworks/Security.framework/Versions/A/Security     预期在：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation    in /System/Library/Frameworks/Security.framework/Versions/A/Security

我也尝试过将soundPath设置为@＆＃34; BUTTERFLY.mp3＆＃34; / @＆＃34; Amalgamation.mp3＆＃34;以及@＆＃34; Game-Storyboard / BUTTERFLY.mp3＆＃34; / @＆＃34; Game-Storyboard / Amalgamation.mp3＆＃34;，我明白了：

2012-08-04 15：58：55.763 Game-Storyboard [8470：10703]没有文件

2012-08-04 15：58：55.767 Game-Storyboard [8470：10703]错误Domain = NSOSStatusErrorDomain Code = -43＆＃34;操作无法完成。（OSStatus错误-43。）＆＃34;

我不知道这一切意味着什么，所以我很感激帮助解决这个问题。

Answer 1

我会做这样的事情（这是一个片段）：

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。

播放音乐错误和相对路径

1 个答案: