Media Player not moving seek bar when fast forwarding - ios

Question

So I am having this small issue, where the seek bar is not being moved forward when the user taps on the fast forward or rewind buttons on the native iOS controller.
See video
https://youtu.be/CJP131GpSYI
The section of code that makes it possible is printed below.
func setupRemoteTransportControls() {
// Get the shared MPRemoteCommandCenter
let commandCenter = MPRemoteCommandCenter.shared()
let changePlaybackPositionCommand = commandCenter.changePlaybackPositionCommand
changePlaybackPositionCommand.isEnabled = true
changePlaybackPositionCommand.addTarget { event in
let seconds = (event as? MPChangePlaybackPositionCommandEvent)?.positionTime ?? 0
let time = CMTime(seconds: seconds, preferredTimescale: 1)
self.player?.seek(to: time)
return .success
}
let skipBackwardCommand = commandCenter.skipBackwardCommand
if(MusicPlayer.mediatype == "podcast")
{
skipBackwardCommand.isEnabled = true
}
else{
skipBackwardCommand.isEnabled = false
}
skipBackwardCommand.preferredIntervals = [NSNumber(value: 10)]
skipBackwardCommand.addTarget(handler: skipBackward)
let skipForwardCommand = commandCenter.skipForwardCommand
if(MusicPlayer.mediatype == "podcast")
{
skipForwardCommand.isEnabled = true
}
else{
skipForwardCommand.isEnabled = false
}
skipForwardCommand.addTarget(handler: skipForward)
// Add handler for Play Command
commandCenter.playCommand.addTarget { [unowned self] event in
if self.player?.rate == 0.0 {
self.player?.play()
return .success
}
return .commandFailed
}
// Add handler for Pause Command
commandCenter.pauseCommand.addTarget { [unowned self] event in
if self.player?.rate == 1.0 {
self.player?.pause()
return .success
}
return .commandFailed
}
func skipBackward(_ event: MPRemoteCommandEvent) -> MPRemoteCommandHandlerStatus {
//self.player?.seek(to: CMTimeMakeWithSeconds(CMTimeGetSeconds((self.player?.currentTime())!).advanced(by: -30), preferredTimescale: 1))
// print(CMTimeGetSeconds((self.player?.currentTime())!)) //Output: 42
//print(event.interval)
self.player!.seek(to: CMTimeMakeWithSeconds(CMTimeGetSeconds((self.player?.currentTime())!).advanced(by: -30), preferredTimescale: 1))
return .success
}
func skipForward(_ event: MPRemoteCommandEvent) -> MPRemoteCommandHandlerStatus {
self.player?.seek(to: CMTimeMakeWithSeconds(CMTimeGetSeconds((self.player?.currentTime())!).advanced(by: 30), preferredTimescale: 1))
return .success
}
}
Full Media Player code:
import SwiftUI
//import Foundation
import AVFoundation
import MediaPlayer
import AVKit
struct NowPlayingData: Codable , Identifiable {
var id,artist,song,cover:String
private enum CodingKeys : String, CodingKey {
case id = "_id", artist , song , cover
}
}
class MusicPlayer {
static let shared = MusicPlayer()
static var mediatype = ""
static var artist = ""
static var song = ""
static var cover = ""
static var urls = ""
static var dur = 0
static var uuid = UIDevice.current.identifierForVendor?.uuidString
var player: AVPlayer?
let playerViewController = AVPlayerViewController()
func gettype(completion: #escaping (String) -> Void){
completion(MusicPlayer.mediatype)
}
func getPodCastPlayerNP(completion: #escaping (NowPlayingData) -> ()) {
// Timer.scheduledTimer(withTimeInterval: 15, repeats: true) { (timer) in
let songdata = "{\"_id\": \"1\",\"song\": \"\(MusicPlayer.song)\",\"artist\": \"\(MusicPlayer.artist)\", \"cover\": \"\(MusicPlayer.cover)\"}"
let data: Foundation.Data = songdata.data(using: .utf8)!
let podcast = try! JSONDecoder().decode(NowPlayingData.self, from: data)
//print(data!)
// let episode = podcast.programs
DispatchQueue.main.async{
// The array is stored under programs now
//print(podcast)
completion(podcast)
}
// }
}
func startBackgroundMusic(url: String, type:String) {
MusicPlayer.mediatype = String(type)
//let urlString = "http://stream.radiomedia.com.au:8003/stream"
let urlString = url+"?uuid="+MusicPlayer.uuid!
print(urlString)
guard let url = URL.init(string: urlString) else { return }
let playerItem = AVPlayerItem.init(url: url)
player = AVPlayer.init(playerItem: playerItem)
do {
try AVAudioSession.sharedInstance().setCategory(.playback, mode: .default, options: [.duckOthers, .defaultToSpeaker, .mixWithOthers, .allowAirPlay])
print("Playback OK")
// let defaults = UserDefaults.standard
// defaults.set("1", forKey: defaultsKeys.musicplayer_connected)
try AVAudioSession.sharedInstance().setActive(true)
print("Session is Active")
} catch {
// let defaults = UserDefaults.standard
// defaults.set("0", forKey: defaultsKeys.musicplayer_connected)
print(error)
}
#if targetEnvironment(simulator)
self.playerViewController.player = player
self.playerViewController.player?.play()
print("SIMULATOR")
#else
self.setupRemoteTransportControls()
player?.play()
#endif
}
func startBackgroundMusicTwo() {
let urlString = "http://stream.radiomedia.com.au:8003/stream"
//let urlString = url
guard let url = URL.init(string: urlString) else { return }
let playerItem = AVPlayerItem.init(url: url)
player = AVPlayer.init(playerItem: playerItem)
do {
try AVAudioSession.sharedInstance().setCategory(.playback, mode: .default, options: [.duckOthers, .defaultToSpeaker, .mixWithOthers, .allowAirPlay])
print("Playback OK")
// let defaults = UserDefaults.standard
// defaults.set("1", forKey: defaultsKeys.musicplayer_connected)
try AVAudioSession.sharedInstance().setActive(true)
print("Session is Active")
} catch {
// let defaults = UserDefaults.standard
// defaults.set("0", forKey: defaultsKeys.musicplayer_connected)
print(error)
}
#if targetEnvironment(simulator)
self.playerViewController.player = player
self.playerViewController.player?.play()
print("SIMULATOR")
#else
self.setupRemoteTransportControls()
player?.play()
#endif
}
func setupRemoteTransportControls() {
// Get the shared MPRemoteCommandCenter
let commandCenter = MPRemoteCommandCenter.shared()
let changePlaybackPositionCommand = commandCenter.changePlaybackPositionCommand
changePlaybackPositionCommand.isEnabled = true
changePlaybackPositionCommand.addTarget { event in
let seconds = (event as? MPChangePlaybackPositionCommandEvent)?.positionTime ?? 0
let time = CMTime(seconds: seconds, preferredTimescale: 1)
self.player?.seek(to: time)
return .success
}
let skipBackwardCommand = commandCenter.skipBackwardCommand
if(MusicPlayer.mediatype == "podcast")
{
skipBackwardCommand.isEnabled = true
}
else{
skipBackwardCommand.isEnabled = false
}
skipBackwardCommand.preferredIntervals = [NSNumber(value: 10)]
skipBackwardCommand.addTarget(handler: skipBackward)
let skipForwardCommand = commandCenter.skipForwardCommand
if(MusicPlayer.mediatype == "podcast")
{
skipForwardCommand.isEnabled = true
}
else{
skipForwardCommand.isEnabled = false
}
skipForwardCommand.addTarget(handler: skipForward)
// Add handler for Play Command
commandCenter.playCommand.addTarget { [unowned self] event in
if self.player?.rate == 0.0 {
self.player?.play()
return .success
}
return .commandFailed
}
// Add handler for Pause Command
commandCenter.pauseCommand.addTarget { [unowned self] event in
if self.player?.rate == 1.0 {
self.player?.pause()
return .success
}
return .commandFailed
}
func skipBackward(_ event: MPRemoteCommandEvent) -> MPRemoteCommandHandlerStatus {
//self.player?.seek(to: CMTimeMakeWithSeconds(CMTimeGetSeconds((self.player?.currentTime())!).advanced(by: -30), preferredTimescale: 1))
// print(CMTimeGetSeconds((self.player?.currentTime())!)) //Output: 42
//print(event.interval)
self.player!.seek(to: CMTimeMakeWithSeconds(CMTimeGetSeconds((self.player?.currentTime())!).advanced(by: -30), preferredTimescale: 1))
return .success
}
func skipForward(_ event: MPRemoteCommandEvent) -> MPRemoteCommandHandlerStatus {
self.player?.seek(to: CMTimeMakeWithSeconds(CMTimeGetSeconds((self.player?.currentTime())!).advanced(by: 30), preferredTimescale: 1))
return .success
}
}
func nowplaying(with artwork: MPMediaItemArtwork, artist: String, song: String, duration: Int){
if(duration == 0){
MPNowPlayingInfoCenter.default().nowPlayingInfo = [
MPMediaItemPropertyTitle:song,
MPMediaItemPropertyArtist:artist,
MPMediaItemPropertyArtwork: artwork,
MPNowPlayingInfoPropertyIsLiveStream: true
]
}
else{
MPNowPlayingInfoCenter.default().nowPlayingInfo = [
MPMediaItemPropertyTitle:song,
MPMediaItemPropertyArtist:artist,
MPMediaItemPropertyArtwork: artwork,
MPNowPlayingInfoPropertyIsLiveStream: false,
MPMediaItemPropertyPlaybackDuration: duration,
MPNowPlayingInfoPropertyPlaybackRate: 1.0,
MPNowPlayingInfoPropertyElapsedPlaybackTime: CMTimeGetSeconds((self.player?.currentTime())!)
]
}
// self.getArtBoard();
}
func setupNowPlayingInfo(with artwork: MPMediaItemArtwork) {
MPNowPlayingInfoCenter.default().nowPlayingInfo = [
MPMediaItemPropertyTitle: "Some name",
MPMediaItemPropertyArtist: "Some name",
MPMediaItemPropertyArtwork: artwork,
//MPMediaItemPropertyPlaybackDuration: CMTimeGetSeconds(currentItem.duration),
//MPNowPlayingInfoPropertyPlaybackRate: 1,
//MPNowPlayingInfoPropertyElapsedPlaybackTime: CMTimeGetSeconds(currentItem.currentTime())
]
}
func getData(from url: URL, completion: #escaping (UIImage?) -> Void) {
URLSession.shared.dataTask(with: url, completionHandler: {(data, response, error) in
if let data = data {
completion(UIImage(data:data))
}
})
.resume()
}
func getArtBoard(artist: String, song: String, cover: String, urls: String, duration: Int) {
// MusicPlayer.JN = "[{'artist': \(artist), 'song':\(song), 'cover': \(cover)}]"
MusicPlayer.artist = artist
MusicPlayer.song = song
MusicPlayer.cover = cover
MusicPlayer.urls = urls
guard let url = URL(string: cover) else { return }
getData(from: url) { [weak self] image in
guard let self = self,
let downloadedImage = image else {
return
}
let artwork = MPMediaItemArtwork.init(boundsSize: downloadedImage.size, requestHandler: { _ -> UIImage in
return downloadedImage
})
self.nowplaying(with: artwork, artist: artist, song: song, duration: duration)
}
}
func stopBackgroundMusic() {
guard let player = player else { return }
player.pause()
}
}
Full GitHub code:
https://github.com/redimongo/iOS-Radio-App

Answer 1

func skipBackward(_ event: MPRemoteCommandEvent) -> MPRemoteCommandHandlerStatus {
//self.player?.seek(to: CMTimeMakeWithSeconds(CMTimeGetSeconds((self.player?.currentTime())!).advanced(by: -30), preferredTimescale: 1))
// print(CMTimeGetSeconds((self.player?.currentTime())!)) //Output: 42
//print(event.interval)
//self.player!.seek(to: CMTimeMakeWithSeconds(CMTimeGetSeconds((self.player?.currentTime())!).advanced(by: -30), preferredTimescale: 1))
let currentTime = self.player?.currentTime()
self.player?.seek(to: CMTime(seconds: currentTime!.seconds - 30, preferredTimescale: 1), completionHandler: { isCompleted in
if isCompleted {
}
})
return .success
}
func skipForward(_ event: MPRemoteCommandEvent) -> MPRemoteCommandHandlerStatus {
//self.player?.seek(to: CMTimeMakeWithSeconds(CMTimeGetSeconds((self.player?.currentTime())!).advanced(by: 30), preferredTimescale: 1))
let currentTime = self.player?.currentTime()
self.player?.seek(to: CMTime(seconds: currentTime!.seconds + 30, preferredTimescale: 1), completionHandler: { isCompleted in
if isCompleted {
}
})
return .success
}
Change this 2 function with above code and let me know. what you face here.