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Question

编辑：已解决

谢谢布鲁克斯。你的问题让我不断深入研究文件是否存在于我的包中 - 而事实并非如此！

所以通过使用此代码（也在下面）：iPhone / iPad：无法将文件夹从NSBundle复制到NSDocumentDirectory以及将目录正确添加到Xcode（来自here及以下）的说明我能够获得它起作用。

将文件夹复制到Xcode：

在Mac上创建目录。
选择“将现有文件添加到项目中”
选择要导入的目录
在弹出窗口中，确保选择“将项目复制到目标组的文件夹“和”为任何创建文件夹引用添加了文件夹“
点击“添加”

目录应显示为蓝色而不是黄色。

-(void) copyDirectory:(NSString *)directory {
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *documentDBFolderPath = [documentsDirectory stringByAppendingPathComponent:directory];
NSString *resourceDBFolderPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:directory];

if (![fileManager fileExistsAtPath:documentDBFolderPath]) {
    //Create Directory!
    [fileManager createDirectoryAtPath:documentDBFolderPath withIntermediateDirectories:NO attributes:nil error:&error];
} else {
    NSLog(@"Directory exists! %@", documentDBFolderPath);
}

NSArray *fileList = [fileManager contentsOfDirectoryAtPath:resourceDBFolderPath error:&error];
for (NSString *s in fileList) {
    NSString *newFilePath = [documentDBFolderPath stringByAppendingPathComponent:s];
    NSString *oldFilePath = [resourceDBFolderPath stringByAppendingPathComponent:s];
    if (![fileManager fileExistsAtPath:newFilePath]) {
        //File does not exist, copy it
        [fileManager copyItemAtPath:oldFilePath toPath:newFilePath error:&error];
    } else {
        NSLog(@"File exists: %@", newFilePath);
    }
}

}

======================== 结束编辑

的FRU杂散玉树-上！总之...

下面的代码将我的文件夹从应用程序包复制到模拟器中的Documents文件夹就好了。但是在设备上我收到错误而没有文件夹。使用ze Google我发现错误（260）表示文件（在这种情况下是我的文件夹）不存在。

可能出现什么问题？为什么我不能将文件夹从包中复制到文档？我已经检查过文件是否存在 - 虽然文件夹没有显示 - 因为Xcode想要平面文件？它是否将我的文件夹（拖入Xcode）转换为资产的平面文件？

我感谢您的帮助。

//  Could not copy report at path /var/mobile/Applications/3C3D7CF6-B1F0-4561-8AD7-A367C103F4D7/cmsdemo.app/plans.gallery to path /var/mobile/Applications/3C3D7CF6-B1F0-4561-8AD7-A367C103F4D7/Documents/plans.gallery. error Error Domain=NSCocoaErrorDomain Code=260 "The operation couldn‚Äôt be completed. (Cocoa error 260.)" UserInfo=0x365090 {NSFilePath=/var/mobile/Applications/3C3D7CF6-B1F0-4561-8AD7-A367C103F4D7/cmsdemo.app/plans.gallery, NSUnderlyingError=0x365230 "The operation couldn‚Äôt be completed. No such file or directory"}

NSString *resourceDBFolderPath;

NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,
                                                     NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *documentDBFolderPath = [documentsDirectory stringByAppendingPathComponent:@"plans.gallery"];
BOOL success = [fileManager fileExistsAtPath:documentDBFolderPath];

if (success){
    NSLog(@"Success!");
    return;
} else {
    resourceDBFolderPath = [[[NSBundle mainBundle] resourcePath]
                                      stringByAppendingPathComponent:@"plans.gallery"];
    [fileManager createDirectoryAtPath: documentDBFolderPath attributes:nil];
    //[fileManager createDirectoryAtURL:documentDBFolderPath withIntermediateDirectories:YES attributes:nil error:nil];

    [fileManager copyItemAtPath:resourceDBFolderPath toPath:documentDBFolderPath           
                          error:&error];
}

    //check if destinationFolder exists
if ([ fileManager fileExistsAtPath:documentDBFolderPath])
{
    //removing destination, so source may be copied
    if (![fileManager removeItemAtPath:documentDBFolderPath error:&error])
    {
        NSLog(@"Could not remove old files. Error:%@",error);
        return;
    }
}
error = nil;
//copying destination
if ( !( [ fileManager copyItemAtPath:resourceDBFolderPath toPath:documentDBFolderPath error:&error ]) )
{
    NSLog(@"Could not copy report at path %@ to path %@. error %@",resourceDBFolderPath, documentDBFolderPath, error);
    return ;
}

Answer 1

我冒昧地编辑了一些我觉得需要一点管家的代码。你正在使用弃用的方法，过于复杂的方法，只是简单荒谬的if-elses。我当然会检查你的文件路径是否有效，不知道.gallery文件是什么，并且没有尝试提供虚拟文件，我唯一可以判断的是你的文件路径是无效的，因为资源没有不管你认为它存在的地方。（有一次，您要求将文件复制到文档目录中，然后检查它是否存在于您的包中！）

    -(void)testMethod {

    NSString *resourceDBFolderPath;

    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSError *error;
    NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,
                                                         NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *documentDBFolderPath = [documentsDirectory stringByAppendingPathComponent:@"plans.gallery"];
    BOOL success = [fileManager fileExistsAtPath:documentDBFolderPath];

    if (success){
        NSLog(@"Success!");
        return;
    } 
    else {
        //simplified method with more common and helpful method 
        resourceDBFolderPath = [[NSBundle mainBundle] pathForResource:@"plans" ofType:@"gallery"];

        //fixed a deprecated method
        [fileManager createDirectoryAtPath:documentDBFolderPath withIntermediateDirectories:NO attributes:nil error:nil];

        [fileManager copyItemAtPath:resourceDBFolderPath toPath:documentDBFolderPath           
                              error:&error];

        //check if destinationFolder exists
        if ([ fileManager fileExistsAtPath:documentDBFolderPath])
        {
            //FIXED, another method that doesn't return a boolean.  check for error instead
            if (error)
            {
                //NSLog first error from copyitemAtPath
                NSLog(@"Could not remove old files. Error:%@", [error localizedDescription]);

                //remove file path and NSLog error if it exists.
                [fileManager removeItemAtPath:documentDBFolderPath error:&error];
                NSLog(@"Could not remove old files. Error:%@", [error localizedDescription]);
                return;
            }
        }
    }
}

将文件夹（带/ contents）从bundle复制到Documents目录 - iOS

编辑：已解决

1 个答案: