My iOS app saves NSCoding objects in Document directory.
NSKeyedArchiver archives them. It is always O.K. but sometimes makes broken files.
The broken files have the following two patterns.
- Lack of data
- I can convert them to ascii strings and recover meaningful
- They have bplist prefix. But they don’t have the trailers.
- Total loss
- I cannot convert them to ascii strings.
- They look shifting all bytes.
This is one of the headers in the broken files comparing with the correct header.
broken (sequence of characters seems to be different every data):
Nè\à¡<99>K<80>^_È<97>▸T§:Æñã9µú▸Ñ1^LË^VYGfM^A%KÍ<95
expected:
bplist00Ô^A^B^C^D^E^H01T$topX$objectsX$versionY$
Has anyone experience the same case?
