I'm working on an app which should show up all the music in the user's iOS music app, I have tried to get things to work but unfortunately I don't know how to not show apple music songs on the app since I don't have the authorization for it. But still my app pulls up the data and shows all the songs in the tableview. When I tap on a music from apple music my app crashes. I think this is because of the auth.
Please let me know if there are any solutions to not show apple music songs when i request to see the users library.
import UIKit
import MediaPlayer
import AVFoundation
class Tableview: UIViewController, UITableViewDelegate, UITableViewDataSource {
@IBOutlet var tableView : UITableView?
let myTableView: UITableView = UITableView( frame: CGRect.zero, style: .grouped )
var albums: [AlbumInfo] = []
var songQuery: SongQuery = SongQuery()
var audio: AVAudioPlayer?
override func viewDidLoad() {
super.viewDidLoad()
tableView?.dataSource = self
tableView?.delegate = self
self.title = "Music"
MPMediaLibrary.requestAuthorization { (status) in
if status == .authorized {
self.albums = self.songQuery.get(songCategory: "")
DispatchQueue.main.async {
self.tableView?.rowHeight = UITableView.automaticDimension;
self.tableView?.estimatedRowHeight = 60.0;
self.tableView?.reloadData()
}
} else {
self.displayMediaLibraryError()
}
}
}
func displayMediaLibraryError() {
var error: String
switch MPMediaLibrary.authorizationStatus() {
case .restricted:
error = "Media library access restricted by corporate or parental settings"
case .denied:
error = "Media library access denied by user"
default:
error = "Unknown error"
}
let controller = UIAlertController(title: "Error", message: error, preferredStyle: .alert)
controller.addAction(UIAlertAction(title: "OK", style: .cancel, handler: nil))
controller.addAction(UIAlertAction(title: "Open Settings", style: .default, handler: { (action) in
if #available(iOS 10.0, *) {
UIApplication.shared.open(URL(string: UIApplication.openSettingsURLString)!, options: [:], completionHandler: nil)
} else {
// Fallback on earlier versions
}
}))
present(controller, animated: true, completion: nil)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func numberOfSections(in tableView: UITableView) -> Int {
return albums.count
}
func tableView( _ tableView: UITableView, numberOfRowsInSection section: Int ) -> Int {
return albums[section].songs.count
}
func tableView( _ tableView: UITableView, cellForRowAt indexPath:IndexPath ) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(
withIdentifier: "MusicPlayerCell",
for: indexPath) as! MusicPlayerCell
cell.labelMusicTitle?.text = albums[indexPath.section].songs[indexPath.row].songTitle
cell.labelMusicDescription?.text = albums[indexPath.section].songs[indexPath.row].artistName
let songId: NSNumber = albums[indexPath.section].songs[indexPath.row].songId
let item: MPMediaItem = songQuery.getItem( songId: songId )
if let imageSound: MPMediaItemArtwork = item.value( forProperty: MPMediaItemPropertyArtwork ) as? MPMediaItemArtwork {
cell.imageMusic?.image = imageSound.image(at: CGSize(width: cell.imageMusic.frame.size.width, height: cell.imageMusic.frame.size.height))
}
return cell;
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return albums[section].albumTitle
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let songId: NSNumber = albums[indexPath.section].songs[indexPath.row].songId
let item: MPMediaItem = songQuery.getItem( songId: songId )
let url: NSURL = item.value( forProperty: MPMediaItemPropertyAssetURL ) as! NSURL
if AVAsset(url: url as URL ) .isPlayable
{
do {
audio = try AVAudioPlayer(contentsOf: url as URL)
guard let player = audio else { return }
player.prepareToPlay()
player.play()
} catch let error {
print(error.localizedDescription)
}
}
self.title = albums[indexPath.section].songs[indexPath.row].songTitle
}
}
import Foundation
import MediaPlayer
import AVFoundation
import MediaToolbox
struct SongInfo {
var albumTitle: String
var artistName: String
var songTitle: String
var songId : NSNumber
}
struct AlbumInfo {
var albumTitle: String
var songs: [SongInfo]
}
class SongQuery {
func get(songCategory: String) -> [AlbumInfo] {
var albums: [AlbumInfo] = []
let albumsQuery: MPMediaQuery
if songCategory == "Artist" {
albumsQuery = MPMediaQuery.artists()
} else if songCategory == "Album" {
albumsQuery = MPMediaQuery.albums()
} else {
albumsQuery = MPMediaQuery.albums()
}
// let albumsQuery: MPMediaQuery = MPMediaQuery.albums()
let albumItems: [MPMediaItemCollection] = albumsQuery.collections! as [MPMediaItemCollection]
// var album: MPMediaItemCollection
for album in albumItems {
let albumItems: [MPMediaItem] = album.items as [MPMediaItem]
// var song: MPMediaItem
var songs: [SongInfo] = []
var albumTitle: String = ""
for song in albumItems {
if songCategory == "Artist" {
albumTitle = song.value( forProperty: MPMediaItemPropertyArtist ) as! String
} else if songCategory == "Album" {
albumTitle = song.value( forProperty: MPMediaItemPropertyAlbumTitle ) as! String
} else {
albumTitle = song.value( forProperty: MPMediaItemPropertyAlbumTitle ) as! String
}
let songInfo: SongInfo = SongInfo(
albumTitle: song.value( forProperty: MPMediaItemPropertyAlbumTitle ) as! String,
artistName: song.value( forProperty: MPMediaItemPropertyArtist ) as! String,
songTitle: song.value( forProperty: MPMediaItemPropertyTitle ) as! String,
songId: song.value( forProperty: MPMediaItemPropertyPersistentID ) as! NSNumber
)
songs.append( songInfo )
}
let albumInfo: AlbumInfo = AlbumInfo(
albumTitle: albumTitle,
songs: songs
)
albums.append( albumInfo )
}
return albums
}
func getItem( songId: NSNumber ) -> MPMediaItem {
let property: MPMediaPropertyPredicate = MPMediaPropertyPredicate( value: songId, forProperty: MPMediaItemPropertyPersistentID )
let query: MPMediaQuery = MPMediaQuery()
query.addFilterPredicate( property )
var items: [MPMediaItem] = query.items! as [MPMediaItem]
return items[items.count - 1]
}
}