Feeds

Serve up iTunes with Apple's media browser

Give your software some soul

High performance access to file storage

This returns an array of ILMediaGroup objects corresponding to the available playlists. An ILMediaGroup object encapsulates all sorts of different groups such as albums, recently played, recently added, and so on. If you want to filter this stuff, the simplest thing to do is use the type method to figure out what kind of group you're looking at. Turn on the DEBUG flag in my code - below - and you'll see all the different type numbers after each group name.

While on the subject of groups, it's also worth pointing out that one group can potentially contain subgroups. This functionality isn't directly supported by the iTunes user interface, but it is programmatically accessible.

OK, so we've got a list of playlists. Via the mediaObjects method, ILMediaGroup provides access to another array containing all the media objects in the group. Each object is of type ILMediaObject. Here's where things get really interesting: different methods give you access to information such as the name (song title), artist, play duration, and the fully qualified path of the media file itself.

iTunes library through the Mac browser

Methods access music information

Play it again...

For the sake of completeness, my demo application includes the ability to play a track: just double-click an item in the right-hand list and it will start playing. This is done by making use of the ILMediaBrowserAudioPlayer class that, once again, forms a part of the iLifeMediaBrowser library: it's what's used by the Apple browser when previewing a selected audio file. In essence, this class is a simple wrapper around QTMovie that forms part of the QuickTime framework.

If you want to make more sophisticated use of ILMediaBrowserAudioPlayer, you should be aware that it posts a number of undocumented notifications while it's working. These notifications - the meaning of each should be obvious from the name - are listed here:

  

MediaBrowserAudioPlayerWillBeginPlaying
MediaBrowserAudioPlayerDidBeginPlaying
MediaBrowserAudioPlayerDidBeginNextSong
MediaBrowserAudioPlayerDidFinishPlaying

You can listen out for these notifications in the usual way and take the appropriate action as required. In fact, even if you don't use any of the classes mentioned but simply use the standard media browser as described last time, these notifications will still be generated and can be exploited in the host application.

That's all we've got room for this time. You can download the demo application and source code that I mentioned earlier here. More undocumented naughtiness next time.®

High performance access to file storage

More from The Register

next story
Android engineer: We DIDN'T copy Apple OR follow Samsung's orders
Veep testifies for Samsung during Apple patent trial
This time it's 'Personal': new Office 365 sub covers just two devices
Redmond also brings Office into Google's back yard
Batten down the hatches, Ubuntu 14.04 LTS due in TWO DAYS
Admins dab straining server brows in advance of Trusty Tahr's long-term support landing
Microsoft lobs pre-release Windows Phone 8.1 at devs who dare
App makers can load it before anyone else, but if they do they're stuck with it
Half of Twitter's 'active users' are SILENT STALKERS
Nearly 50% have NEVER tweeted a word
Windows XP still has 27 per cent market share on its deathbed
Windows 7 making some gains on XP Death Day
Internet-of-stuff startup dumps NoSQL for ... SQL?
NoSQL taste great at first but lacks proper nutrients, says startup cloud whiz
Windows 8.1, which you probably haven't upgraded to yet, ALREADY OBSOLETE
Pre-Update versions of new Windows version will no longer support patches
Microsoft TIER SMEAR changes app prices whether devs ask or not
Some go up, some go down, Redmond goes silent
Red Hat to ship RHEL 7 release candidate with a taste of container tech
Grab 'near-final' version of next Enterprise Linux next week
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
HP ArcSight ESM solution helps Finansbank
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.