如何将文件添加到App Group共享目录？

Question

So I have an app with a share extension each with their own target. The core of the apps' bundle identifier is com.company.app and the share extensions is com.company.app.share . Each have their own entitlements file, with the core apps being App Groups -> group.com.company.app and the share extension being the same. Both of the bundle identifiers are listed on the apple developer website but for some reason,

I don't seem to have the right permissions to write to the shared private/var/mobile/Containers/Shared/AppGroup/XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX/Library/Caches/ directory.

The error message I get is: You don't have permission to save the file “Caches” in the folder “Library”.

The directory is being saved like this:

GetZipURLInItems(self.extensionContext.inputItems, ^(NSURL *url, NSError *error) {
    if (error == nil) {

        NSURL *containerURL = [[[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:GroupIdentifier] URLByAppendingPathComponent:@"Library/Caches"];
        NSLog(@"EXT: containerURL: %@", containerURL);

        [WPZipArchive unzipFileAtPath:[url path] toDestination:[containerURL absoluteString]];

        [self listDirectoryAtPath:[containerURL absoluteString]];
    }});

What am I'm missing here?

Answer 1

问题实际上是使用[url absoluteString] vs [url path]，将所有url更改为路径解决了权限错误。