//用户文件夹防止备份到iCloud
-
(BOOL)addSkipBackupAttributeToItemAtURL:(NSURL *)URL{
assert([[NSFileManager defaultManager] fileExistsAtPath: [URL path]]);NSError *error = nil;
BOOL success = [URL setResourceValue: [NSNumber numberWithBool: YES]
forKey: NSURLIsExcludedFromBackupKey error: &error];
if(!success){
NSLog(@"Error excluding %@ from backup %@", [URL lastPathComponent], error);
}
return success;
}
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