mpmediaitem

问题 It seems that the property MPMediaItemPropertyAssetURL on a MPMediaItem returns null when the file is one that was from Apple Music and has been made "available offline". On the other hand, items from my original library which I uploaded to iTunes match/apple music and then make available offline don't seem to have this problem. Is this a bug? Have I done something wrong? Anyone having similar issues? 回答1: It seems that Apple Music files are DRM-protected and subscription based, so probably

问题 I have a tableView which shows a list of playlists from the user's music library. The code I used to get this list is: @implementation playlistsViewController { NSArray *playlists; MPMediaQuery *playlistsQuery; } - (void)viewDidLoad { self.title = @"Playlists"; playlistsQuery = [MPMediaQuery playlistsQuery]; playlists = [playlistsQuery collections]; } #pragma mark - Table view data source - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return

问题 How to convert the iPod library to NSData. The url is: ipod-library://item/item.mp3?id=1258203422631791096 Getting error but, I can play the song by using AVPlayer. NSURL *url = [curItem valueForProperty: MPMediaItemPropertyAssetURL]; NSError *error = nil; NSData *data = [NSData dataWithContentsOfFile:[url absoluteString] options:NSDataReadingMappedAlways error:&error]; NSLog(@"Error : %@",error); The curItem is a MPMediaItem Error Domain=NSCocoaErrorDomain Code=260 "The file “item.mp3?id

问题 I am trying to set MPNowPlayingInfoCenter, most of the key-value pairs work fine, but there is some kind of issue with playback time let mpic = MPNowPlayingInfoCenter.defaultCenter() mpic.nowPlayingInfo = [ MPMediaItemPropertyArtwork:albumArtWork, MPMediaItemPropertyTitle:titleString, MPMediaItemPropertyArtist:artistName, MPMediaItemPropertyPlaybackDuration:99, MPNowPlayingInfoPropertyElapsedPlaybackTime:String(stringInterpolationSegment:self.myPlayer.currentItem?.currentTime()),

问题 Bellow is code for fetching items in the iPod library of the iOS device, the problem I am having is to do with getting the right MPMediaItemProperty . The way I understand it if I want to get data like artwork, comments title - I gotta take one media item of the MPMediaItemCollection class in my - (MPMediaItem *)mediaItemForRow: (NSInteger)row method. The problem with this is that I do not get the same info as Apple have - cause I´v checked in their podcast app. They must use some other way

问题 I'm working on code that looks at the user's videos and passes them along to AVPlayer by way of an AVPlayerItem which takes a URL. To get all the videos on an iOS device, you can do: let videoNumber = MPMediaType.anyVideo.rawValue let predicate = MPMediaPropertyPredicate.init(value: videoNumber, forProperty: MPMediaItemPropertyMediaType) let query = MPMediaQuery.init() query.addFilterPredicate(predicate) if let items = query.items { mediaCollection = MPMediaItemCollection(items: items) // -1

问题 I want to display lyrics from song that is currently playing by iOS system player. Here is my custom player: import UIKit import MediaPlayer import AVFoundation class NowPlayingController: NSObject { var musicPlayer: MPMusicPlayerController { if musicPlayer_Lazy == nil { musicPlayer_Lazy = MPMusicPlayerController.systemMusicPlayer() let center = NotificationCenter.default center.addObserver(self, selector: #selector(self.playingItemDidChange), name: NSNotification.Name

问题 I was looking at Apple's documentation, and I cannot seem to find a way to get whether or not an MPMediaItem is a 'favorite' track or not. See screenshot below, with the pink heart. How can one get this property? I know since it's a new feature, it's availability would be limited to iOS 8.4 or later. Here's some code I'm using to get other properties from MPMediaItems, via the music picker: - (void) processMediaItems:(MPMediaItemCollection *)mediaItemCollection { //iterate through selected

问题 I have retrieved all musics and videos from my iPhone device. I am now stuck in saving those in to my application, i am unable to get the raw data out of the file. Can any one help me to find a solution for this. this is the code i used to get the music files. MPMediaQuery *deviceiPod = [[MPMediaQuery alloc] init]; NSArray *itemsFromGenericQuery = [deviceiPod items]; for (MPMediaItem *media in itemsFromGenericQuery){ //i get the media item here. } How to convert it to NSData ?? This is what i

问题 I have an app that interacts with both the iPod player, and the iTunes Store Web Service Search API. Is there a way to obtain the iTunes ID for a song that I retrieve from my user's iPod library (e.g. via MPMusicPlayerController, or MPMediaItem)? The documentation says that the MPMediaItemPropertyPersistentID is a unique identifier that persists across app launch. This however, seems like it might be a unique local id. The only solution I can think of is to retrieve the song title and artist