diff --git a/app/src/main/java/io/legado/app/service/AudioPlayService.kt b/app/src/main/java/io/legado/app/service/AudioPlayService.kt
index 9ae6df41a..a407381ab 100644
--- a/app/src/main/java/io/legado/app/service/AudioPlayService.kt
+++ b/app/src/main/java/io/legado/app/service/AudioPlayService.kt
@@ -14,7 +14,6 @@ import android.support.v4.media.session.MediaSessionCompat
 import android.support.v4.media.session.PlaybackStateCompat
 import androidx.core.app.NotificationCompat
 import androidx.media.AudioFocusRequestCompat
-import com.google.android.exoplayer2.ExoPlayer
 import com.google.android.exoplayer2.PlaybackException
 import com.google.android.exoplayer2.Player
 import com.google.android.exoplayer2.SimpleExoPlayer
@@ -25,6 +24,7 @@ import io.legado.app.constant.EventBus
 import io.legado.app.constant.IntentAction
 import io.legado.app.constant.Status
 import io.legado.app.data.appDb
+import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookChapter
 import io.legado.app.help.ExoPlayerHelper
 import io.legado.app.help.IntentHelp
@@ -54,7 +54,7 @@ class AudioPlayService : BaseService(),
 
     private lateinit var audioManager: AudioManager
     private lateinit var mFocusRequest: AudioFocusRequestCompat
-    private lateinit var exoPlayer: ExoPlayer
+    private lateinit var exoPlayer: SimpleExoPlayer
     private var title: String = ""
     private var subtitle: String = ""
     private var mediaSessionCompat: MediaSessionCompat? = null
@@ -135,6 +135,7 @@ class AudioPlayService : BaseService(),
                 exoPlayer.setMediaSource(mediaSource)
                 exoPlayer.playWhenReady = true
                 exoPlayer.prepare()
+                exoPlayer.seekTo(position.toLong())
             }.onFailure {
                 it.printStackTrace()
                 toastOnUi("$url ${it.localizedMessage}")
@@ -163,7 +164,6 @@ class AudioPlayService : BaseService(),
             pause = false
             if (!exoPlayer.isPlaying) {
                 exoPlayer.play()
-                exoPlayer.seekTo(position.toLong())
             }
             upPlayProgress()
             upMediaSessionPlaybackState(PlaybackStateCompat.STATE_PLAYING)
@@ -177,11 +177,7 @@ class AudioPlayService : BaseService(),
     }
 
     private fun adjustProgress(position: Int) {
-        if (exoPlayer.isPlaying) {
-            exoPlayer.seekTo(position.toLong())
-        } else {
-            this.position = position
-        }
+        exoPlayer.seekTo(position.toLong())
     }
 
     private fun upSpeed(adjust: Float) {
@@ -205,8 +201,13 @@ class AudioPlayService : BaseService(),
             }
             Player.STATE_READY -> {
                 // 准备好
-                AudioPlay.status = Status.PLAY
-                postEvent(EventBus.AUDIO_STATE, Status.PLAY)
+                if (exoPlayer.playWhenReady) {
+                    AudioPlay.status = Status.PLAY
+                    postEvent(EventBus.AUDIO_STATE, Status.PLAY)
+                } else {
+                    AudioPlay.status = Status.PAUSE
+                    postEvent(EventBus.AUDIO_STATE, Status.PAUSE)
+                }
                 postEvent(EventBus.AUDIO_SIZE, exoPlayer.duration)
                 upPlayProgress()
                 AudioPlay.saveDurChapter(exoPlayer.duration)
@@ -277,8 +278,11 @@ class AudioPlayService : BaseService(),
         upPlayProgressJob?.cancel()
         upPlayProgressJob = launch {
             while (isActive) {
-                saveProgress()
-                postEvent(EventBus.AUDIO_PROGRESS, exoPlayer.currentPosition)
+                AudioPlay.book?.let {
+                    it.durChapterPos = exoPlayer.currentPosition.toInt()
+                    postEvent(EventBus.AUDIO_PROGRESS, it.durChapterPos)
+                    saveProgress(it)
+                }
                 delay(1000)
             }
         }
@@ -286,7 +290,7 @@ class AudioPlayService : BaseService(),
 
     private fun loadContent() = with(AudioPlay) {
         durChapter?.let { chapter ->
-            if (addLoading(durChapterIndex)) {
+            if (addLoading(chapter.index)) {
                 val book = AudioPlay.book
                 val bookSource = AudioPlay.bookSource
                 if (book != null && bookSource != null) {
@@ -330,19 +334,16 @@ class AudioPlayService : BaseService(),
      * 加载完成
      */
     private fun contentLoadFinish(chapter: BookChapter, content: String) {
-        if (chapter.index == AudioPlay.durChapterIndex) {
+        if (chapter.index == AudioPlay.book?.durChapterIndex) {
             subtitle = chapter.title
             url = content
             play()
         }
     }
 
-    private fun saveProgress() {
+    private fun saveProgress(book: Book) {
         execute {
-            AudioPlay.book?.let {
-                AudioPlay.durChapterPos = exoPlayer.currentPosition.toInt()
-                appDb.bookDao.upProgress(it.bookUrl, AudioPlay.durChapterPos)
-            }
+            appDb.bookDao.upProgress(book.bookUrl, book.durChapterPos)
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/service/help/AudioPlay.kt b/app/src/main/java/io/legado/app/service/help/AudioPlay.kt
index 4fd7a88de..fa3f83e38 100644
--- a/app/src/main/java/io/legado/app/service/help/AudioPlay.kt
+++ b/app/src/main/java/io/legado/app/service/help/AudioPlay.kt
@@ -22,8 +22,6 @@ object AudioPlay {
     var book: Book? = null
     var durChapter: BookChapter? = null
     var inBookshelf = false
-    var durChapterIndex = 0
-    var durChapterPos = 0
     var bookSource: BookSource? = null
     val loadingChapters = arrayListOf<Int>()
 
@@ -37,18 +35,19 @@ object AudioPlay {
                 upDurChapter(it)
             }
             durChapter?.let {
-                val intent = Intent(context, AudioPlayService::class.java)
-                intent.action = IntentAction.play
-                context.startService(intent)
+                context.startService<AudioPlayService> {
+                    action = IntentAction.play
+
+                }
             }
         }
     }
 
     fun upDurChapter(book: Book) {
-        durChapter = appDb.bookChapterDao.getChapter(book.bookUrl, durChapterIndex)
+        durChapter = appDb.bookChapterDao.getChapter(book.bookUrl, book.durChapterIndex)
         postEvent(EventBus.AUDIO_SUB_TITLE, durChapter?.title ?: "")
         postEvent(EventBus.AUDIO_SIZE, durChapter?.end?.toInt() ?: 0)
-        postEvent(EventBus.AUDIO_PROGRESS, durChapterPos)
+        postEvent(EventBus.AUDIO_PROGRESS, book.durChapterPos)
     }
 
     fun pause(context: Context) {
@@ -96,8 +95,8 @@ object AudioPlay {
     fun skipTo(context: Context, index: Int) {
         Coroutine.async {
             book?.let { book ->
-                durChapterIndex = index
-                durChapterPos = 0
+                book.durChapterIndex = index
+                book.durChapterPos = 0
                 durChapter = null
                 saveRead(book)
                 play(context)
@@ -111,8 +110,8 @@ object AudioPlay {
                 if (book.durChapterIndex <= 0) {
                     return@let
                 }
-                durChapterIndex--
-                durChapterPos = 0
+                book.durChapterIndex = book.durChapterIndex - 1
+                book.durChapterPos = 0
                 durChapter = null
                 saveRead(book)
                 play(context)
@@ -125,8 +124,8 @@ object AudioPlay {
             if (book.durChapterIndex >= book.totalChapterNum) {
                 return@let
             }
-            durChapterIndex++
-            durChapterPos = 0
+            book.durChapterIndex = book.durChapterIndex + 1
+            book.durChapterPos = 0
             durChapter = null
             saveRead(book)
             play(context)
@@ -142,8 +141,6 @@ object AudioPlay {
     fun saveRead(book: Book) {
         book.lastCheckCount = 0
         book.durChapterTime = System.currentTimeMillis()
-        book.durChapterIndex = durChapterIndex
-        book.durChapterPos = durChapterPos
         Coroutine.async {
             appDb.bookChapterDao.getChapter(book.bookUrl, book.durChapterIndex)?.let {
                 book.durChapterTitle = it.title
diff --git a/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt b/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt
index acba1ae55..0e5aa459c 100644
--- a/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayActivity.kt
@@ -54,7 +54,7 @@ class AudioPlayActivity :
     }
     private val tocActivityResult = registerForActivityResult(TocActivityResult()) {
         it?.let {
-            if (it.first != AudioPlay.durChapterIndex) {
+            if (it.first != AudioPlay.book?.durChapterIndex) {
                 AudioPlay.skipTo(this, it.first)
             }
         }
@@ -233,7 +233,6 @@ class AudioPlayActivity :
             binding.tvAllTime.text = progressTimeFormat.format(it.toLong())
         }
         observeEventSticky<Int>(EventBus.AUDIO_PROGRESS) {
-            AudioPlay.durChapterPos = it
             if (!adjustProgress) binding.playerProgress.progress = it
             binding.tvDurTime.text = progressTimeFormat.format(it.toLong())
         }
diff --git a/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayViewModel.kt b/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayViewModel.kt
index e55919ad0..e52d0af61 100644
--- a/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/audio/AudioPlayViewModel.kt
@@ -27,9 +27,7 @@ class AudioPlayViewModel(application: Application) : BaseViewModel(application)
                 book?.let { book ->
                     titleData.postValue(book.name)
                     coverData.postValue(book.getDisplayCover())
-                    durChapterIndex = book.durChapterIndex
-                    durChapterPos = book.durChapterPos
-                    durChapter = appDb.bookChapterDao.getChapter(book.bookUrl, durChapterIndex)
+                    durChapter = appDb.bookChapterDao.getChapter(book.bookUrl, book.durChapterIndex)
                     upDurChapter(book)
                     bookSource = appDb.bookSourceDao.getBookSource(book.origin)
                     if (durChapter == null) {
@@ -111,14 +109,13 @@ class AudioPlayViewModel(application: Application) : BaseViewModel(application)
         chapters: List<BookChapter>
     ) {
         execute {
-            AudioPlay.durChapterIndex = BookHelp.getDurChapter(
+            book.durChapterIndex = BookHelp.getDurChapter(
                 book.durChapterIndex,
                 oldTocSize,
                 book.durChapterTitle,
                 chapters
             )
-            book.durChapterIndex = AudioPlay.durChapterIndex
-            book.durChapterTitle = chapters[AudioPlay.durChapterIndex].title
+            book.durChapterTitle = chapters[book.durChapterIndex].title
             appDb.bookDao.update(book)
             appDb.bookChapterDao.insert(*chapters.toTypedArray())
         }
diff --git a/build.gradle b/build.gradle
index 36559ec3b..96c3d0315 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,7 +10,7 @@ buildscript {
         maven { url 'https://maven.aliyun.com/repository/gradle-plugin' }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.0.1'
+        classpath 'com.android.tools.build:gradle:7.0.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'de.timfreiheit.resourceplaceholders:placeholders:0.4'
         classpath 'de.undercouch:gradle-download-task:4.1.2'