使内容不会备份到itunes

+ (BOOL)addSkipBackupAttributeToPath:(NSString *)path {

 

    NSURL * url = [NSURL URLWithString:path];

 

    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;

}