如何从iOS应用沙箱删除目录

Question

Suppose I created a folder in "Documents" folder in my application sandbox and I called it "ID123".

From NSFileManager Class Reference I found out that I can create a new folder with one of these methods:

– createDirectoryAtURL:withIntermediateDirectories:attributes:error:
– createDirectoryAtPath:withIntermediateDirectories:attributes:error:

The question is how can I delete created directory?

Answer 1

You can use removeItemAtPath:error: OR removeItemAtURL:error: for doing this.

Like:

[[NSFileManager defaultManager] removeItemAtPath:yourPath error:nil];

or you can use:

[[NSFileManager defaultManager] removeItemAtURL:yourPathURL error:nil];

Answer 2

Depending on whether you're using the URL or path based approach, either use the...

- (BOOL)removeItemAtPath:(NSString *)path error:(NSError **)error

or

- (BOOL)removeItemAtURL:(NSURL *)URL error:(NSError **)error

...NSFileManager method.

For example:

NSError *removalError = nil;
if(![[NSFileManager defaultManager] removeItemAtPath:pathToFile error:&removalError]) {
    // Something went wrong.
    NSLog(@"%@", [removalError localizedDescription]);
}

In terms of recursive removal the supplied path (or URL depending on the method) can point at a directory containing items/sub-folders, etc. As per the Apple docs:

A path string indicating the file or directory to remove. If the path specifies a directory, the contents of that directory are recursively removed.

Incidentally, this is clearly defined within the "Creating and Deleting Items" section of the NSFileManager Class reference , so it would probably be worth the time to give that document a quick overview.