iCloud + Storage of media in iPhone Documents folder

Question

I, like many developers, got an email from Apple recently that stated we should move our data from the documents directory into another folder to permit more streamlined bac

Answer 1

iOS 5.0.1 introduced a flag to address this issue:

https://developer.apple.com/library/ios/#qa/qa1719/_index.html

Their recommendation is to create a folder in /Library/ like /Library/PrivateDocs , and put your files there. However you will also have to set a "do not backup" flag on them as every file in /Library except for those in /Library/Cache or tmp are backed up by default. Set the flag on PrivateDocs folder with this command:

#include 
- (BOOL)addSkipBackupAttributeToItemAtURL:(NSURL *)URL
{
    const char* filePath = [[URL path] fileSystemRepresentation];

    const char* attrName = "com.apple.MobileBackup";
    u_int8_t attrValue = 1;

    int result = setxattr(filePath, attrName, &attrValue, sizeof(attrValue), 0, 0);
    return result == 0;
}