xcode iOS 复制目录，包括子目录
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iOS copy directories including subdirectories
提问by Jaume
I am working with iOS document folder called "temp" that allocates subdirectories that contain files dowloaded from remote url. Now I need to copy "temp" directory and all its contents to "main" folder (overwrite existing that was previously created). I know how to handle files but how to copy whole directory? Thank you
我正在使用名为“temp”的 iOS 文档文件夹，该文件夹分配包含从远程 url 下载的文件的子目录。现在我需要将“temp”目录及其所有内容复制到“main”文件夹（覆盖先前创建的现有文件夹）。我知道如何处理文件但如何复制整个目录？谢谢
回答by jrtc27
You can use the same NSFileManagermethods that you know and love for directories as well. For example:
您也可以使用NSFileManager您熟悉和喜爱的目录方法。例如：
if ([[NSFileManager defaultManager] fileExistsAtPath:pathToTempDirectoryInMain]) {
[[NSFileManager defaultManager] removeItemAtPath:pathToTempDirectoryInMain error:nil];
}
NSError *copyError = nil;
if (![[NSFileManager defaultManager] copyItemAtPath:pathToTempDirectory toPath:pathToTempDirectoryInMain error:©Error]) {
NSLog(@"Error copying files: %@", [copyError localizedDescription]);
}
回答by rob mayoff
The NSFileManagermethods removeItemAtPath:error:, removeItemAtURL:error:, copyItemAtPath:toPath:error:, and copyItemAtURL:toURL:error:methods handle directories.
该NSFileManager方法removeItemAtPath:error:，removeItemAtURL:error:，copyItemAtPath:toPath:error:和copyItemAtURL:toURL:error:方法处理目录。
You might also look at moveItemAtPath:toPath:error:and moveItemAtURL:toURL:error:.
您还可以查看moveItemAtPath:toPath:error:和moveItemAtURL:toURL:error:。
