my app caches songs music service offline playback. saved subdirectory under nssearchpathfordirectoriesindomains(nscachesdirectory, nsuserdomainmask, yes). have code in didfinishlaunchingwithoptions routine verify cached files still there , validates nsdictionary maps track ids local path.
i haven't experienced issues with, upon rollout of updated version through appstore - avplayer stopped playing these cached songs. following i've checked:
- downloaded songs still there in cache folder
- no errors in log
- app doesn't crash
- on ui see them marked cached means "cleanup" routine found them on device
- non-cached songs play fine
- newly cached songs play fine well
what possibly issue here?
it took me long time figure out, basically: app guids change upon ios app updates , had full path stored in dictionary of cached songs!
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