Apps must follow the iOS Data Storage Guidelines or they will be rejected

Question

i have developed an app that can download mp3 files (nearly 6 to 8 mb of size) from online and stored in NSDocumentDirectory. my app get rejected today and says that

Answer 1

i got my app rejected for the same reason , the solution is really simple instead of saving your downloaded files to the Documents directory you have to save them to the Cache directory which is a temp directory that don't get backed up to iCloud and can be randomly deleted by the OS on certain occasions ... this is how you save a file to the cache directory

NSString *filePath = [[self applicationCachesDirectory] stringByAppendingPathComponent:fileName];


BOOL flag = [[NSFileManager defaultManager] createFileAtPath:filePath contents: receivedData attributes:nil];

EDIT

NSString *filePath = [[self applicationCachesDirectory]  stringByAppendingPathComponent:[NSString stringWithFormat:@"psalmsMusic%d.mp3",i]];
NSLog(@"ffffdffffdd psalmsMusic%d.mp3",i);
i++;
BOOL flag = [[NSFileManager defaultManager] createFileAtPath:filePath contents: receivedData attributes:nil];
if ( flag )
  NSLog("success");