iOS 5: iPod Library Access
iOS 5: iPod Library Access
- Subject: iOS 5: iPod Library Access
- From: John Michael Zorko <email@hidden>
- Date: Thu, 12 Apr 2012 11:30:31 -0700
Hello, all ...
I'm trying to navigate the artists / albums / genres / etc. on a device. The documentation for this is usually easy to follow, but i'm finding it to be confusing regarding the concept of persistent IDs. I've a couple of questions:
1. What does and what does not have an MPMediaItemPropertyPersistentID?
a. Does each artist have one?
b. Does each album have one?
c. Does each genre have one?
d. Does each song / tv show / movie / audiobook / playlist / podcast / etc. have one?
e. Are these IDs unique across all collections i.e. will a specific album have the same persistent ID of, say, another artist or a song from another album?
2. Is it possible to find a particular artist / album / genre / etc. given only it's MPMediaItemPropertyPersistentID (assuming 1(e) is true)? If so, how? I see lots of examples for finding the albums of an artist, etc. given the artist name, album name, etc., but what if two artists have the same name, or different artists used the same title for their album? I'd like to use the MPMediaItemPropertyPersistentID, if possible, to make each search unambiguous. If this is possible, could someone point me at some example code that uses the MPMediaItemPropertyPersistentID to find a specific item?
Regards,
John, appreciative
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