Question

我试图用复印机复制目录,但每次都未能完成“手术”。存在“错误”。

这里使用的是Im。

NSLog(@"Copying from: %@ to: %@", [[NSUserDefaults standardUserDefaults] objectForKey:@"template_1_path"], path);
if(![file_manager copyItemAtPath:[NSString stringWithFormat:@"%@", [[NSUserDefaults standardUserDefaults] objectForKey:@"template_1_path"]] toPath:[NSString stringWithFormat:@"%@", path] error:&error]) {
      NSLog(@"%@" [error localizedDescription]);
}

Example of the log -

"Copying from: /Users/testuser/Sites/example_site to: /Users/testuser/Desktop"
"The operation couldn’t be completed. File exists"

任何关于我做什么错误的想法?

提前感谢!

Answer 1

You seem to be trying to copy the file "/Users/testuser/Sites/example_site" to the file "/Users/testuser/Desktop/example_site", assuming that you can just specify the destination directory and it will use the source filename. This does not work. Quoth the documentation:

当档案被复制时,目的地必须填写在档案名称中,否则源档案名称就没有被默示采纳。

Answer 2

你们正试图用同一个档案名称复制一些东西。类似情况:

- (BOOL)copyFolderAtPath:(NSString *)sourceFolder toDestinationFolderAtPath:(NSString*)destinationFolder {
    //including root folder.
    //Just remove it if you just want to copy the contents of the source folder.
    destinationFolder = [destinationFolder stringByAppendingPathComponent:[sourceFolder lastPathComponent]];

    NSFileManager * fileManager = [ NSFileManager defaultManager];
    NSError * error = nil;
    //check if destinationFolder exists
    if ([ fileManager fileExistsAtPath:destinationFolder])
    {
        //removing destination, so soucer may be copied
        if (![fileManager removeItemAtPath:destinationFolder error:&error])
        {
            NSLog(@"Could not remove old files. Error:%@",error);
            [error release];
            return NO;
        }
    }
    error = nil;
    //copying destination
    if ( !( [ fileManager copyItemAtPath:sourceFolder toPath:destinationFolder error:&error ]) )
    {
        NSLog(@"Could not copy report at path %@ to path %@. error %@",sourceFolder, destinationFolder, error);
        [error release];
        return NO;
    }
    return YES;
}

友情链接