Accessing the Movies and iTunes U videos on the iPad

Question

In my app, I want to reproduce a view which looks exactly like the "Videos" native iPad app (it displays Movies and iTunes U videos located on the iPad).

I don't know how to access those elements on the iPad (Movies and iTunes U).

I've played with everything mentionned in the Apple documentation "IPod Library Access Programming Guide":

• MPMediaItem
• MPMediaPickerController
• MPMediaQuery
• MPMoviePlayerController …etc…

I thought I was close with MPMediaItem and MPMediaQuery, as two of the Flags seemed promising:

MPMediaTypeMovie = 1 << 8 MPMediaTypeVideoITunesU = 1 << 12

However, all the results I get only include songs.

Am I using the right classes to access those items? Considering the results I get, it seems like those classes can only access media items which are part of the iPod library, which I am not sure is the case for Movies and iTunes U videos.

我知道这是可能的，因为我看到了另一个访问它的应用程序（称为“VideoPix”）。它在 Popover 视图中显示“视频库”，所以起初我怀疑它使用的是 MPMediaPickerController，因为在 iPad 上，您只能在 Popover 中使用它，但是再次尝试时，我看到的只是歌曲, 没有电影或 iTunes U 项目:(

先感谢您！

弗雷德

Answer 1

查看ALAssetAssetsLibrary.framework 中的

它与您上面尝试执行的操作类似，您基本上查询 ALAssetLibrary 来获取类型 (ALAssetTypePhoto | ALAssetTypeVideo) 的资源，然后您就有了一个可以向用户显示的集合。