ultrasonic-app-subsonic-and.../ultrasonic/src/main/kotlin/org/moire/ultrasonic/service/MediaPlayerService.kt

951 lines
33 KiB
Kotlin

/*
* MediaPlayerService.kt
* Copyright (C) 2009-2021 Ultrasonic developers
*
* Distributed under terms of the GNU GPLv3 license.
*/
package org.moire.ultrasonic.service
import android.app.Notification
import android.app.NotificationChannel
import android.app.NotificationManager
import android.app.PendingIntent
import android.app.Service
import android.content.ComponentName
import android.content.Context
import android.content.Intent
import android.os.Build
import android.os.IBinder
import android.support.v4.media.MediaMetadataCompat
import android.support.v4.media.session.MediaSessionCompat
import android.support.v4.media.session.PlaybackStateCompat
import android.view.KeyEvent
import androidx.core.app.NotificationCompat
import androidx.core.app.NotificationManagerCompat
import org.koin.android.ext.android.inject
import org.moire.ultrasonic.R
import org.moire.ultrasonic.activity.NavigationActivity
import org.moire.ultrasonic.app.UApp
import org.moire.ultrasonic.domain.MusicDirectory
import org.moire.ultrasonic.domain.PlayerState
import org.moire.ultrasonic.domain.RepeatMode
import org.moire.ultrasonic.imageloader.BitmapUtils
import org.moire.ultrasonic.provider.UltrasonicAppWidgetProvider4X1
import org.moire.ultrasonic.provider.UltrasonicAppWidgetProvider4X2
import org.moire.ultrasonic.provider.UltrasonicAppWidgetProvider4X3
import org.moire.ultrasonic.provider.UltrasonicAppWidgetProvider4X4
import org.moire.ultrasonic.receiver.MediaButtonIntentReceiver
import org.moire.ultrasonic.service.MusicServiceFactory.getMusicService
import org.moire.ultrasonic.util.Constants
import org.moire.ultrasonic.util.NowPlayingEventDistributor
import org.moire.ultrasonic.util.ShufflePlayBuffer
import org.moire.ultrasonic.util.SimpleServiceBinder
import org.moire.ultrasonic.util.Util
import timber.log.Timber
/**
* Android Foreground Service for playing music
* while the rest of the Ultrasonic App is in the background.
*/
@Suppress("LargeClass")
class MediaPlayerService : Service() {
private val binder: IBinder = SimpleServiceBinder(this)
private val scrobbler = Scrobbler()
private val jukeboxMediaPlayer by inject<JukeboxMediaPlayer>()
private val downloadQueueSerializer by inject<DownloadQueueSerializer>()
private val shufflePlayBuffer by inject<ShufflePlayBuffer>()
private val downloader by inject<Downloader>()
private val localMediaPlayer by inject<LocalMediaPlayer>()
private val nowPlayingEventDistributor by inject<NowPlayingEventDistributor>()
private val mediaPlayerLifecycleSupport by inject<MediaPlayerLifecycleSupport>()
private var mediaSession: MediaSessionCompat? = null
private var mediaSessionToken: MediaSessionCompat.Token? = null
private var isInForeground = false
private var notificationBuilder: NotificationCompat.Builder? = null
private val repeatMode: RepeatMode
get() = Util.getRepeatMode()
override fun onBind(intent: Intent): IBinder {
return binder
}
override fun onCreate() {
super.onCreate()
downloader.onCreate()
shufflePlayBuffer.onCreate()
localMediaPlayer.init()
setupOnCurrentPlayingChangedHandler()
setupOnPlayerStateChangedHandler()
setupOnSongCompletedHandler()
localMediaPlayer.onPrepared = {
downloadQueueSerializer.serializeDownloadQueue(
downloader.downloadList,
downloader.currentPlayingIndex,
playerPosition
)
null
}
localMediaPlayer.onNextSongRequested = Runnable { setNextPlaying() }
// Create Notification Channel
createNotificationChannel()
// Update notification early. It is better to show an empty one temporarily
// than waiting too long and letting Android kill the app
updateNotification(PlayerState.IDLE, null)
instance = this
Timber.i("MediaPlayerService created")
}
override fun onStartCommand(intent: Intent, flags: Int, startId: Int): Int {
super.onStartCommand(intent, flags, startId)
return START_NOT_STICKY
}
override fun onDestroy() {
super.onDestroy()
instance = null
try {
localMediaPlayer.release()
downloader.stop()
shufflePlayBuffer.onDestroy()
mediaSession?.release()
mediaSession = null
} catch (ignored: Throwable) {
}
Timber.i("MediaPlayerService stopped")
}
private fun stopIfIdle() {
synchronized(instanceLock) {
// currentPlaying could be changed from another thread in the meantime,
// so check again before stopping for good
if (localMediaPlayer.currentPlaying == null ||
localMediaPlayer.playerState === PlayerState.STOPPED
) {
stopSelf()
}
}
}
@Synchronized
fun seekTo(position: Int) {
if (jukeboxMediaPlayer.isEnabled) {
// TODO These APIs should be more aligned
val seconds = position / 1000
jukeboxMediaPlayer.skip(downloader.currentPlayingIndex, seconds)
} else {
localMediaPlayer.seekTo(position)
}
}
@get:Synchronized
val playerPosition: Int
get() {
if (localMediaPlayer.playerState === PlayerState.IDLE ||
localMediaPlayer.playerState === PlayerState.DOWNLOADING ||
localMediaPlayer.playerState === PlayerState.PREPARING
) {
return 0
}
return if (jukeboxMediaPlayer.isEnabled) {
jukeboxMediaPlayer.positionSeconds * 1000
} else {
localMediaPlayer.playerPosition
}
}
@get:Synchronized
val playerDuration: Int
get() = localMediaPlayer.playerDuration
@Synchronized
fun setCurrentPlaying(currentPlayingIndex: Int) {
try {
localMediaPlayer.setCurrentPlaying(downloader.downloadList[currentPlayingIndex])
} catch (ignored: IndexOutOfBoundsException) {
}
}
@Synchronized
fun setNextPlaying() {
val gaplessPlayback = Util.getGaplessPlaybackPreference()
if (!gaplessPlayback) {
localMediaPlayer.clearNextPlaying(true)
return
}
var index = downloader.currentPlayingIndex
if (index != -1) {
when (repeatMode) {
RepeatMode.OFF -> index += 1
RepeatMode.ALL -> index = (index + 1) % downloader.downloadList.size
RepeatMode.SINGLE -> {
}
else -> {
}
}
}
localMediaPlayer.clearNextPlaying(false)
if (index < downloader.downloadList.size && index != -1) {
localMediaPlayer.setNextPlaying(downloader.downloadList[index])
} else {
localMediaPlayer.clearNextPlaying(true)
}
}
@Synchronized
fun togglePlayPause() {
if (localMediaPlayer.playerState === PlayerState.PAUSED ||
localMediaPlayer.playerState === PlayerState.COMPLETED ||
localMediaPlayer.playerState === PlayerState.STOPPED
) {
start()
} else if (localMediaPlayer.playerState === PlayerState.IDLE) {
play()
} else if (localMediaPlayer.playerState === PlayerState.STARTED) {
pause()
}
}
@Synchronized
fun resumeOrPlay() {
if (localMediaPlayer.playerState === PlayerState.PAUSED ||
localMediaPlayer.playerState === PlayerState.COMPLETED ||
localMediaPlayer.playerState === PlayerState.STOPPED
) {
start()
} else if (localMediaPlayer.playerState === PlayerState.IDLE) {
play()
}
}
/**
* Plays either the current song (resume) or the first/next one in queue.
*/
@Synchronized
fun play() {
val current = downloader.currentPlayingIndex
if (current == -1) {
play(0)
} else {
play(current)
}
}
@Synchronized
fun play(index: Int) {
play(index, true)
}
@Synchronized
fun play(index: Int, start: Boolean) {
Timber.v("play requested for %d", index)
if (index < 0 || index >= downloader.downloadList.size) {
resetPlayback()
} else {
setCurrentPlaying(index)
if (start) {
if (jukeboxMediaPlayer.isEnabled) {
jukeboxMediaPlayer.skip(index, 0)
localMediaPlayer.setPlayerState(PlayerState.STARTED)
} else {
localMediaPlayer.play(downloader.downloadList[index])
}
}
downloader.checkDownloads()
setNextPlaying()
}
}
@Synchronized
private fun resetPlayback() {
localMediaPlayer.reset()
localMediaPlayer.setCurrentPlaying(null)
downloadQueueSerializer.serializeDownloadQueue(
downloader.downloadList,
downloader.currentPlayingIndex, playerPosition
)
}
@Synchronized
fun pause() {
if (localMediaPlayer.playerState === PlayerState.STARTED) {
if (jukeboxMediaPlayer.isEnabled) {
jukeboxMediaPlayer.stop()
} else {
localMediaPlayer.pause()
}
localMediaPlayer.setPlayerState(PlayerState.PAUSED)
}
}
@Synchronized
fun stop() {
if (localMediaPlayer.playerState === PlayerState.STARTED) {
if (jukeboxMediaPlayer.isEnabled) {
jukeboxMediaPlayer.stop()
} else {
localMediaPlayer.pause()
}
}
localMediaPlayer.setPlayerState(PlayerState.STOPPED)
}
@Synchronized
fun start() {
if (jukeboxMediaPlayer.isEnabled) {
jukeboxMediaPlayer.start()
} else {
localMediaPlayer.start()
}
localMediaPlayer.setPlayerState(PlayerState.STARTED)
}
private fun updateWidget(playerState: PlayerState, song: MusicDirectory.Entry?) {
val started = playerState === PlayerState.STARTED
val context = this@MediaPlayerService
UltrasonicAppWidgetProvider4X1.getInstance().notifyChange(context, song, started, false)
UltrasonicAppWidgetProvider4X2.getInstance().notifyChange(context, song, started, true)
UltrasonicAppWidgetProvider4X3.getInstance().notifyChange(context, song, started, false)
UltrasonicAppWidgetProvider4X4.getInstance().notifyChange(context, song, started, false)
}
private fun setupOnCurrentPlayingChangedHandler() {
localMediaPlayer.onCurrentPlayingChanged = { currentPlaying: DownloadFile? ->
if (currentPlaying != null) {
Util.broadcastNewTrackInfo(this@MediaPlayerService, currentPlaying.song)
Util.broadcastA2dpMetaDataChange(
this@MediaPlayerService, playerPosition, currentPlaying,
downloader.downloads.size, downloader.currentPlayingIndex + 1
)
} else {
Util.broadcastNewTrackInfo(this@MediaPlayerService, null)
Util.broadcastA2dpMetaDataChange(
this@MediaPlayerService, playerPosition, null,
downloader.downloads.size, downloader.currentPlayingIndex + 1
)
}
// Update widget
val playerState = localMediaPlayer.playerState
val song = currentPlaying?.song
updateWidget(playerState, song)
if (currentPlaying != null) {
updateNotification(localMediaPlayer.playerState, currentPlaying)
nowPlayingEventDistributor.raiseShowNowPlayingEvent()
} else {
nowPlayingEventDistributor.raiseHideNowPlayingEvent()
stopForeground(true)
isInForeground = false
stopIfIdle()
}
null
}
}
private fun setupOnPlayerStateChangedHandler() {
localMediaPlayer.onPlayerStateChanged = {
playerState: PlayerState,
currentPlaying: DownloadFile?
->
val context = this@MediaPlayerService
// Notify MediaSession
updateMediaSession(currentPlaying, playerState)
if (playerState === PlayerState.PAUSED) {
downloadQueueSerializer.serializeDownloadQueue(
downloader.downloadList, downloader.currentPlayingIndex, playerPosition
)
}
val showWhenPaused = playerState !== PlayerState.STOPPED &&
Util.isNotificationAlwaysEnabled()
val show = playerState === PlayerState.STARTED || showWhenPaused
val song = currentPlaying?.song
Util.broadcastPlaybackStatusChange(context, playerState)
Util.broadcastA2dpPlayStatusChange(
context, playerState, song,
downloader.downloadList.size + downloader.backgroundDownloadList.size,
downloader.downloadList.indexOf(currentPlaying) + 1, playerPosition
)
// Update widget
updateWidget(playerState, song)
if (show) {
// Only update notification if player state is one that will change the icon
if (playerState === PlayerState.STARTED || playerState === PlayerState.PAUSED) {
updateNotification(playerState, currentPlaying)
nowPlayingEventDistributor.raiseShowNowPlayingEvent()
}
} else {
nowPlayingEventDistributor.raiseHideNowPlayingEvent()
stopForeground(true)
isInForeground = false
stopIfIdle()
}
if (playerState === PlayerState.STARTED) {
scrobbler.scrobble(currentPlaying, false)
} else if (playerState === PlayerState.COMPLETED) {
scrobbler.scrobble(currentPlaying, true)
}
null
}
}
private fun setupOnSongCompletedHandler() {
localMediaPlayer.onSongCompleted = { currentPlaying: DownloadFile? ->
val index = downloader.currentPlayingIndex
if (currentPlaying != null) {
val song = currentPlaying.song
if (song.bookmarkPosition > 0 && Util.getShouldClearBookmark()) {
val musicService = getMusicService()
try {
musicService.deleteBookmark(song.id)
} catch (ignored: Exception) {
}
}
}
if (index != -1) {
when (repeatMode) {
RepeatMode.OFF -> {
if (index + 1 < 0 || index + 1 >= downloader.downloadList.size) {
if (Util.getShouldClearPlaylist()) {
clear(true)
jukeboxMediaPlayer.updatePlaylist()
}
resetPlayback()
} else {
play(index + 1)
}
}
RepeatMode.ALL -> {
play((index + 1) % downloader.downloadList.size)
}
RepeatMode.SINGLE -> play(index)
else -> {
}
}
}
null
}
}
@Synchronized
fun clear(serialize: Boolean) {
localMediaPlayer.reset()
downloader.clear()
localMediaPlayer.setCurrentPlaying(null)
setNextPlaying()
if (serialize) {
downloadQueueSerializer.serializeDownloadQueue(
downloader.downloadList,
downloader.currentPlayingIndex, playerPosition
)
}
}
private fun updateMediaSession(currentPlaying: DownloadFile?, playerState: PlayerState) {
Timber.d("Updating the MediaSession")
if (mediaSession == null) initMediaSessions()
// Set Metadata
val metadata = MediaMetadataCompat.Builder()
if (currentPlaying != null) {
try {
val song = currentPlaying.song
val cover = BitmapUtils.getAlbumArtBitmapFromDisk(
song, Util.getMinDisplayMetric()
)
metadata.putLong(MediaMetadataCompat.METADATA_KEY_DURATION, -1L)
metadata.putString(MediaMetadataCompat.METADATA_KEY_ARTIST, song.artist)
metadata.putString(MediaMetadataCompat.METADATA_KEY_ALBUM_ARTIST, song.artist)
metadata.putString(MediaMetadataCompat.METADATA_KEY_ALBUM, song.album)
metadata.putString(MediaMetadataCompat.METADATA_KEY_TITLE, song.title)
metadata.putBitmap(MediaMetadataCompat.METADATA_KEY_ALBUM_ART, cover)
} catch (e: Exception) {
Timber.e(e, "Error setting the metadata")
}
}
// Save the metadata
mediaSession!!.setMetadata(metadata.build())
// Create playback State
val playbackState = PlaybackStateCompat.Builder()
val state: Int
val isActive: Boolean
var actions: Long = PlaybackStateCompat.ACTION_PLAY_PAUSE or
PlaybackStateCompat.ACTION_SKIP_TO_NEXT or
PlaybackStateCompat.ACTION_SKIP_TO_PREVIOUS
// Map our playerState to native PlaybackState
// TODO: Synchronize these APIs
when (playerState) {
PlayerState.STARTED -> {
state = PlaybackStateCompat.STATE_PLAYING
isActive = true
actions = actions or
PlaybackStateCompat.ACTION_PAUSE or
PlaybackStateCompat.ACTION_STOP
}
PlayerState.COMPLETED,
PlayerState.STOPPED -> {
isActive = false
state = PlaybackStateCompat.STATE_STOPPED
}
PlayerState.IDLE -> {
isActive = false
state = PlaybackStateCompat.STATE_NONE
actions = 0L
}
PlayerState.PAUSED -> {
isActive = true
state = PlaybackStateCompat.STATE_PAUSED
actions = actions or
PlaybackStateCompat.ACTION_PLAY or
PlaybackStateCompat.ACTION_STOP
}
else -> {
// These are the states PREPARING, PREPARED & DOWNLOADING
isActive = true
state = PlaybackStateCompat.STATE_PAUSED
}
}
playbackState.setState(state, PlaybackStateCompat.PLAYBACK_POSITION_UNKNOWN, 1.0f)
// Set actions
playbackState.setActions(actions)
// Save the playback state
mediaSession!!.setPlaybackState(playbackState.build())
// Set Active state
mediaSession!!.isActive = isActive
Timber.d("Setting the MediaSession to active = %s", isActive)
}
private fun createNotificationChannel() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// The suggested importance of a startForeground service notification is IMPORTANCE_LOW
val channel = NotificationChannel(
NOTIFICATION_CHANNEL_ID,
NOTIFICATION_CHANNEL_NAME,
NotificationManager.IMPORTANCE_LOW
)
channel.lightColor = android.R.color.holo_blue_dark
channel.lockscreenVisibility = Notification.VISIBILITY_PUBLIC
channel.setShowBadge(false)
val manager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
manager.createNotificationChannel(channel)
}
}
fun updateNotification(playerState: PlayerState, currentPlaying: DownloadFile?) {
val notification = buildForegroundNotification(playerState, currentPlaying)
if (Util.isNotificationEnabled()) {
if (isInForeground) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
val manager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
manager.notify(NOTIFICATION_ID, notification)
} else {
val manager = NotificationManagerCompat.from(this)
manager.notify(NOTIFICATION_ID, notification)
}
Timber.v("Updated notification")
} else {
startForeground(NOTIFICATION_ID, notification)
isInForeground = true
Timber.v("Created Foreground notification")
}
}
}
/**
* This method builds a notification, reusing the Notification Builder if possible
*/
@Suppress("SpreadOperator")
private fun buildForegroundNotification(
playerState: PlayerState,
currentPlaying: DownloadFile?
): Notification {
// Init
val context = applicationContext
val song = currentPlaying?.song
val stopIntent = getPendingIntentForMediaAction(context, KeyEvent.KEYCODE_MEDIA_STOP, 100)
// We should use a single notification builder, otherwise the notification may not be updated
if (notificationBuilder == null) {
notificationBuilder = NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
// Set some values that never change
notificationBuilder!!.setSmallIcon(R.drawable.ic_stat_ultrasonic)
notificationBuilder!!.setAutoCancel(false)
notificationBuilder!!.setOngoing(true)
notificationBuilder!!.setOnlyAlertOnce(true)
notificationBuilder!!.setWhen(System.currentTimeMillis())
notificationBuilder!!.setShowWhen(false)
notificationBuilder!!.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
notificationBuilder!!.priority = NotificationCompat.PRIORITY_LOW
// Add content intent (when user taps on notification)
notificationBuilder!!.setContentIntent(getPendingIntentForContent())
// This intent is executed when the user closes the notification
notificationBuilder!!.setDeleteIntent(stopIntent)
}
// Use the Media Style, to enable native Android support for playback notification
val style = androidx.media.app.NotificationCompat.MediaStyle()
if (mediaSessionToken != null) {
style.setMediaSession(mediaSessionToken)
}
// Clear old actions
notificationBuilder!!.clearActions()
// Add actions
val compactActions = addActions(context, notificationBuilder!!, playerState, song)
// Configure shortcut actions
style.setShowActionsInCompactView(*compactActions)
notificationBuilder!!.setStyle(style)
// Set song title, artist and cover if possible
if (song != null) {
val iconSize = (256 * context.resources.displayMetrics.density).toInt()
val bitmap = BitmapUtils.getAlbumArtBitmapFromDisk(song, iconSize)
notificationBuilder!!.setContentTitle(song.title)
notificationBuilder!!.setContentText(song.artist)
notificationBuilder!!.setLargeIcon(bitmap)
notificationBuilder!!.setSubText(song.album)
}
return notificationBuilder!!.build()
}
private fun addActions(
context: Context,
notificationBuilder: NotificationCompat.Builder,
playerState: PlayerState,
song: MusicDirectory.Entry?
): IntArray {
// Init
val compactActionList = ArrayList<Int>()
var numActions = 0 // we start and 0 and then increment by 1 for each call to generateAction
// Star
if (song != null) {
notificationBuilder.addAction(generateStarAction(context, numActions, song.starred))
}
numActions++
// Next
notificationBuilder.addAction(generateAction(context, numActions))
compactActionList.add(numActions)
numActions++
// Play/Pause button
notificationBuilder.addAction(generatePlayPauseAction(context, numActions, playerState))
compactActionList.add(numActions)
numActions++
// Previous
notificationBuilder.addAction(generateAction(context, numActions))
compactActionList.add(numActions)
numActions++
// Close
notificationBuilder.addAction(generateAction(context, numActions))
val actionArray = IntArray(compactActionList.size)
for (i in actionArray.indices) {
actionArray[i] = compactActionList[i]
}
return actionArray
// notificationBuilder.setShowActionsInCompactView())
}
private fun generateAction(context: Context, requestCode: Int): NotificationCompat.Action? {
val keycode: Int
val icon: Int
val label: String
when (requestCode) {
1 -> {
keycode = KeyEvent.KEYCODE_MEDIA_PREVIOUS
label = getString(R.string.common_play_previous)
icon = R.drawable.media_backward_medium_dark
}
2 -> // Is handled in generatePlayPauseAction()
return null
3 -> {
keycode = KeyEvent.KEYCODE_MEDIA_NEXT
label = getString(R.string.common_play_next)
icon = R.drawable.media_forward_medium_dark
}
4 -> {
keycode = KeyEvent.KEYCODE_MEDIA_STOP
label = getString(R.string.buttons_stop)
icon = R.drawable.ic_baseline_close_24
}
else -> return null
}
val pendingIntent = getPendingIntentForMediaAction(context, keycode, requestCode)
return NotificationCompat.Action.Builder(icon, label, pendingIntent).build()
}
private fun generatePlayPauseAction(
context: Context,
requestCode: Int,
playerState: PlayerState
): NotificationCompat.Action {
val isPlaying = playerState === PlayerState.STARTED
val keycode = KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE
val pendingIntent = getPendingIntentForMediaAction(context, keycode, requestCode)
val label: String
val icon: Int
if (isPlaying) {
label = getString(R.string.common_pause)
icon = R.drawable.media_pause_large_dark
} else {
label = getString(R.string.common_play)
icon = R.drawable.media_start_large_dark
}
return NotificationCompat.Action.Builder(icon, label, pendingIntent).build()
}
private fun generateStarAction(
context: Context,
requestCode: Int,
isStarred: Boolean
): NotificationCompat.Action {
val label: String
val icon: Int
val keyCode: Int = KeyEvent.KEYCODE_STAR
if (isStarred) {
label = getString(R.string.download_menu_star)
icon = R.drawable.ic_star_full_dark
} else {
label = getString(R.string.download_menu_star)
icon = R.drawable.ic_star_hollow_dark
}
val pendingIntent = getPendingIntentForMediaAction(context, keyCode, requestCode)
return NotificationCompat.Action.Builder(icon, label, pendingIntent).build()
}
private fun getPendingIntentForContent(): PendingIntent {
val intent = Intent(this, NavigationActivity::class.java)
.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP)
val flags = PendingIntent.FLAG_UPDATE_CURRENT
intent.putExtra(Constants.INTENT_EXTRA_NAME_SHOW_PLAYER, true)
return PendingIntent.getActivity(this, 0, intent, flags)
}
private fun getPendingIntentForMediaAction(
context: Context,
keycode: Int,
requestCode: Int
): PendingIntent {
val intent = Intent(Constants.CMD_PROCESS_KEYCODE)
val flags = PendingIntent.FLAG_UPDATE_CURRENT
intent.setPackage(context.packageName)
intent.putExtra(Intent.EXTRA_KEY_EVENT, KeyEvent(KeyEvent.ACTION_DOWN, keycode))
return PendingIntent.getBroadcast(context, requestCode, intent, flags)
}
private fun initMediaSessions() {
@Suppress("MagicNumber")
val keycode = 110
Timber.w("Creating media session")
mediaSession = MediaSessionCompat(applicationContext, "UltrasonicService")
mediaSessionToken = mediaSession!!.sessionToken
updateMediaButtonReceiver()
mediaSession!!.setCallback(object : MediaSessionCompat.Callback() {
override fun onPlay() {
super.onPlay()
getPendingIntentForMediaAction(
applicationContext,
KeyEvent.KEYCODE_MEDIA_PLAY,
keycode
).send()
Timber.v("Media Session Callback: onPlay")
}
override fun onPause() {
super.onPause()
getPendingIntentForMediaAction(
applicationContext,
KeyEvent.KEYCODE_MEDIA_PAUSE,
keycode
).send()
Timber.v("Media Session Callback: onPause")
}
override fun onStop() {
super.onStop()
getPendingIntentForMediaAction(
applicationContext,
KeyEvent.KEYCODE_MEDIA_STOP,
keycode
).send()
Timber.v("Media Session Callback: onStop")
}
override fun onSkipToNext() {
super.onSkipToNext()
getPendingIntentForMediaAction(
applicationContext,
KeyEvent.KEYCODE_MEDIA_NEXT,
keycode
).send()
Timber.v("Media Session Callback: onSkipToNext")
}
override fun onSkipToPrevious() {
super.onSkipToPrevious()
getPendingIntentForMediaAction(
applicationContext,
KeyEvent.KEYCODE_MEDIA_PREVIOUS,
keycode
).send()
Timber.v("Media Session Callback: onSkipToPrevious")
}
override fun onMediaButtonEvent(mediaButtonEvent: Intent): Boolean {
// This probably won't be necessary once we implement more
// of the modern media APIs, like the MediaController etc.
val event = mediaButtonEvent.extras!!["android.intent.extra.KEY_EVENT"] as KeyEvent?
mediaPlayerLifecycleSupport.handleKeyEvent(event)
return true
}
}
)
}
fun updateMediaButtonReceiver() {
if (Util.getMediaButtonsEnabled()) {
registerMediaButtonEventReceiver()
} else {
unregisterMediaButtonEventReceiver()
}
}
private fun registerMediaButtonEventReceiver() {
val component = ComponentName(packageName, MediaButtonIntentReceiver::class.java.name)
val mediaButtonIntent = Intent(Intent.ACTION_MEDIA_BUTTON)
mediaButtonIntent.component = component
val pendingIntent = PendingIntent.getBroadcast(
this,
INTENT_CODE_MEDIA_BUTTON,
mediaButtonIntent,
PendingIntent.FLAG_CANCEL_CURRENT
)
mediaSession?.setMediaButtonReceiver(pendingIntent)
}
private fun unregisterMediaButtonEventReceiver() {
mediaSession?.setMediaButtonReceiver(null)
}
@Suppress("MagicNumber")
companion object {
private const val NOTIFICATION_CHANNEL_ID = "org.moire.ultrasonic"
private const val NOTIFICATION_CHANNEL_NAME = "Ultrasonic background service"
private const val NOTIFICATION_ID = 3033
private const val INTENT_CODE_MEDIA_BUTTON = 161
private var instance: MediaPlayerService? = null
private val instanceLock = Any()
@JvmStatic
fun getInstance(): MediaPlayerService? {
val context = UApp.applicationContext()
synchronized(instanceLock) {
for (i in 0..19) {
if (instance != null) return instance
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
context.startForegroundService(
Intent(context, MediaPlayerService::class.java)
)
} else {
context.startService(Intent(context, MediaPlayerService::class.java))
}
Util.sleepQuietly(50L)
}
return instance
}
}
@JvmStatic
val runningInstance: MediaPlayerService?
get() {
synchronized(instanceLock) { return instance }
}
@JvmStatic
fun executeOnStartedMediaPlayerService(
taskToExecute: (MediaPlayerService) -> Unit
) {
val t: Thread = object : Thread() {
override fun run() {
val instance = getInstance()
if (instance == null) {
Timber.e("ExecuteOnStarted.. failed to get a MediaPlayerService instance!")
return
} else {
taskToExecute(instance)
}
}
}
t.start()
}
}
}