media query

media_query.sh

RootViewController> cd MPMediaQuery
$0 = <RootViewController: 0x144ba0>
MPMediaQuery> ls
[MPMEDIAQUERY]: MPMediaQuery
CLASS_METHODS: [
  "_clearCachedDynamicPropertiesForMediaLibrary:",
  "_clearCachedItemsAndCollections",
  "_clearCachedItemsAndCollectionsForMediaLibrary:",
  "_didReceiveMemoryWarning",
  "_executeMediaCacheSyncedBlock:",
  "_libraryContentsDidChange:",
  "_libraryDynamicPropertiesDidChange:",
  "albumsQuery",
  "artistsQuery",
  "audiobooksQuery",
  "compilationsQuery",
  "composersQuery",
  "geniusMixesQuery",
  "genresQuery",
  "initialize",
  "playlistsQuery",
  "podcastsQuery",
  "setFilteringDisabled:",
  "songsQuery",
  "videosQuery"
]
MPMediaQuery> cd playlistsQuery
MPMediaQuery> p
== MPMediaQuery ==
    collectionSections             nil                                    @"NSArray" R
    collections                    [<MPConcreteMediaPlaylist: 0x1939...   @"NSArray" R
    filterPredicates               nil                                    @"NSSet"
    groupingType                   6                                      i
    itemSections                   [<MPMediaQuerySection: 0x1860d0> ...   @"NSArray" R
    items                          [<MPConcreteMediaItem: 0x1874a0> ...   @"NSArray" R
MPMediaQuery> collections.map name
[MPMediaQuery collections.map]  ===>    [
  "<MPConcreteMediaPlaylist: 0x193970, name : 100>",
  "<MPConcreteMediaPlaylist: 0x193c20, name : albums>",
  "<MPConcreteMediaPlaylist: 0x193d70, name : cante>",
  "<MPConcreteMediaPlaylist: 0x193ec0, name : POP>",
  "<MPConcreteMediaPlaylist: 0x193880, name : 옛노래>",
  "<MPConcreteMediaPlaylist: 0x194100, name : 자연의 소리>",
  "<MPConcreteMediaPlaylist: 0x194240, name : 하모니카>",
  "<MPConcreteMediaPlaylist: 0x194380, name : >"
]
MPMediaQuery> cd 0x193d70
MPConcreteMediaPlaylist> ls
[MPCONCRETEMEDIAPLAYLIST]: <MPConcreteMediaPlaylist: 0x193d70>
MPConcreteMediaPlaylist> p
== MPConcreteMediaPlaylist ==
== MPMediaPlaylist ==
    name                           cante                                  @"NSString" R
    persistentID                   5798001509990328                       Q R
    playlistAttributes             0                                      i R
== MPMediaItemCollection ==
    count                          3                                      I R
    items                          [<MPConcreteMediaItem: 0x1868b0> ...   @"NSArray" R
    mediaTypes                     1                                      i R
    representativeItem             <MPConcreteMediaItem: 0x1868b0> 1...   @"MPMediaItem" R
== MPMediaEntity ==
    persistentID                   6908645692997560                       Q R
    representativeItem             <MPConcreteMediaItem: 0x1868b0> 1...   @"MPMediaItem" R
MPConcreteMediaPlaylist> items.map title
[MPConcreteMediaPlaylist items.map]     ===>    [
  "<MPConcreteMediaItem: 0x1868b0, title : 07. Jarabe De Palo - Dejame Vivir>",
  "<MPConcreteMediaItem: 0x192b70, title : 하루하루>",
  "<MPConcreteMediaItem: 0x187ed0, title : antifreeze>"
]