up

app/src/main/java/io/legado/app/help/MediaHelp.kt

@@ -7,7 +7,6 @@ import android.media.AudioManager
 import android.media.MediaPlayer
 import android.os.Build
 import android.support.v4.media.session.PlaybackStateCompat
-import androidx.annotation.RequiresApi
 import io.legado.app.R
 
 object MediaHelp {
@@ -33,17 +32,43 @@ object MediaHelp {
             or PlaybackStateCompat.ACTION_SET_SHUFFLE_MODE
             or PlaybackStateCompat.ACTION_SET_CAPTIONING_ENABLED)
 
-    @RequiresApi(Build.VERSION_CODES.O)
+    fun getFocusRequest(audioFocusChangeListener: AudioManager.OnAudioFocusChangeListener): AudioFocusRequest? {
-    fun getFocusRequest(audioFocusChangeListener: AudioManager.OnAudioFocusChangeListener): AudioFocusRequest {
+        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             val mPlaybackAttributes = AudioAttributes.Builder()
                 .setUsage(AudioAttributes.USAGE_MEDIA)
                 .setContentType(AudioAttributes.CONTENT_TYPE_MUSIC)
                 .build()
-        return AudioFocusRequest.Builder(AudioManager.AUDIOFOCUS_GAIN)
+            AudioFocusRequest.Builder(AudioManager.AUDIOFOCUS_GAIN)
                 .setAudioAttributes(mPlaybackAttributes)
                 .setAcceptsDelayedFocusGain(true)
                 .setOnAudioFocusChangeListener(audioFocusChangeListener)
                 .build()
+        } else {
+            null
+        }
+    }
+
+    /**
+     * @return 音频焦点
+     */
+    fun requestFocus(
+        audioManager: AudioManager,
+        listener: AudioManager.OnAudioFocusChangeListener,
+        focusRequest: AudioFocusRequest?
+    ): Boolean {
+        val request: Int = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            focusRequest?.let {
+                audioManager.requestAudioFocus(focusRequest)
+            } ?: AudioManager.AUDIOFOCUS_REQUEST_GRANTED
+        } else {
+            @Suppress("DEPRECATION")
+            audioManager.requestAudioFocus(
+                listener,
+                AudioManager.STREAM_MUSIC,
+                AudioManager.AUDIOFOCUS_GAIN
+            )
+        }
+        return request == AudioManager.AUDIOFOCUS_REQUEST_GRANTED
     }
 
     fun playSilentSound(mContext: Context) {

app/src/main/java/io/legado/app/service/AudioPlayService.kt

@@ -9,7 +9,6 @@ import android.graphics.BitmapFactory
 import android.media.AudioFocusRequest
 import android.media.AudioManager
 import android.media.MediaPlayer
-import android.os.Build
 import android.os.Handler
 import android.support.v4.media.session.MediaSessionCompat
 import android.support.v4.media.session.PlaybackStateCompat
@@ -27,7 +26,10 @@ import io.legado.app.ui.book.read.ReadBookActivity
 import io.legado.app.utils.postEvent
 
 
-class AudioPlayService : BaseService(), AudioManager.OnAudioFocusChangeListener {
+class AudioPlayService : BaseService(), AudioManager.OnAudioFocusChangeListener,
+    MediaPlayer.OnPreparedListener,
+    MediaPlayer.OnErrorListener,
+    MediaPlayer.OnCompletionListener {
 
     companion object {
         var isRun = false
@@ -37,7 +39,7 @@ class AudioPlayService : BaseService(), AudioManager.OnAudioFocusChangeListener
     var pause = false
     private val handler = Handler()
     private lateinit var audioManager: AudioManager
-    private lateinit var mFocusRequest: AudioFocusRequest
+    private var mFocusRequest: AudioFocusRequest? = null
     private var title: String = ""
     private var subtitle: String = ""
     private val mediaPlayer = MediaPlayer()
@@ -50,9 +52,10 @@ class AudioPlayService : BaseService(), AudioManager.OnAudioFocusChangeListener
         super.onCreate()
         isRun = true
         audioManager = getSystemService(Context.AUDIO_SERVICE) as AudioManager
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
         mFocusRequest = MediaHelp.getFocusRequest(this)
-        }
+        mediaPlayer.setOnErrorListener(this)
+        mediaPlayer.setOnPreparedListener(this)
+        mediaPlayer.setOnCompletionListener(this)
         initMediaSession()
         initBroadcastReceiver()
         upMediaSessionPlaybackState(PlaybackStateCompat.STATE_PLAYING)
@@ -97,6 +100,19 @@ class AudioPlayService : BaseService(), AudioManager.OnAudioFocusChangeListener
         mediaPlayer.start()
     }
 
+    override fun onPrepared(mp: MediaPlayer?) {
+        if (pause) return
+        mp?.start()
+
+    }
+
+    override fun onError(mp: MediaPlayer?, what: Int, extra: Int): Boolean {
+        return true
+    }
+
+    override fun onCompletion(mp: MediaPlayer?) {
+
+    }
 
     private fun setTimer(minute: Int) {
         timeMinute = minute
@@ -137,23 +153,6 @@ class AudioPlayService : BaseService(), AudioManager.OnAudioFocusChangeListener
         upNotification()
     }
 
-    /**
-     * @return 音频焦点
-     */
-    fun requestFocus(): Boolean {
-        val request: Int = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            audioManager.requestAudioFocus(mFocusRequest)
-        } else {
-            @Suppress("DEPRECATION")
-            audioManager.requestAudioFocus(
-                this,
-                AudioManager.STREAM_MUSIC,
-                AudioManager.AUDIOFOCUS_GAIN
-            )
-        }
-        return request == AudioManager.AUDIOFOCUS_REQUEST_GRANTED
-    }
-
     /**
      * 更新媒体状态
      */

app/src/main/java/io/legado/app/service/BaseReadAloudService.kt

@@ -8,7 +8,6 @@ import android.content.IntentFilter
 import android.graphics.BitmapFactory
 import android.media.AudioFocusRequest
 import android.media.AudioManager
-import android.os.Build
 import android.os.Handler
 import android.support.v4.media.session.MediaSessionCompat
 import android.support.v4.media.session.PlaybackStateCompat
@@ -40,7 +39,7 @@ abstract class BaseReadAloudService : BaseService(),
 
     private val handler = Handler()
     private lateinit var audioManager: AudioManager
-    private lateinit var mFocusRequest: AudioFocusRequest
+    private var mFocusRequest: AudioFocusRequest? = null
     private var broadcastReceiver: BroadcastReceiver? = null
     private var mediaSessionCompat: MediaSessionCompat? = null
     private var title: String = ""
@@ -57,9 +56,7 @@ abstract class BaseReadAloudService : BaseService(),
         super.onCreate()
         isRun = true
         audioManager = getSystemService(Context.AUDIO_SERVICE) as AudioManager
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
         mFocusRequest = MediaHelp.getFocusRequest(this)
-        }
         initMediaSession()
         initBroadcastReceiver()
         upNotification()
@@ -190,17 +187,7 @@ abstract class BaseReadAloudService : BaseService(),
      * @return 音频焦点
      */
     fun requestFocus(): Boolean {
-        val request: Int = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+        return MediaHelp.requestFocus(audioManager, this, mFocusRequest)
-            audioManager.requestAudioFocus(mFocusRequest)
-        } else {
-            @Suppress("DEPRECATION")
-            audioManager.requestAudioFocus(
-                this,
-                AudioManager.STREAM_MUSIC,
-                AudioManager.AUDIOFOCUS_GAIN
-            )
-        }
-        return request == AudioManager.AUDIOFOCUS_REQUEST_GRANTED
     }
 
     /**

app/src/main/java/io/legado/app/service/HttpReadAloudService.kt

@@ -90,7 +90,7 @@ class HttpReadAloudService : BaseReadAloudService(),
 
     @Synchronized
     private fun playAudio(fd: FileDescriptor) {
-        if (playingIndex != nowSpeak) {
+        if (playingIndex != nowSpeak && requestFocus()) {
             playingIndex = nowSpeak
             try {
                 mediaPlayer.reset()