diff --git a/artplayer-core/src/main/java/org/salient/artplayer/audio/DefaultAudioFocusChangeListener.kt b/artplayer-core/src/main/java/org/salient/artplayer/audio/DefaultAudioFocusChangeListener.kt
index 90ddfb6..ac52f50 100644
--- a/artplayer-core/src/main/java/org/salient/artplayer/audio/DefaultAudioFocusChangeListener.kt
+++ b/artplayer-core/src/main/java/org/salient/artplayer/audio/DefaultAudioFocusChangeListener.kt
@@ -5,6 +5,7 @@ import android.content.Context
 import android.media.AudioManager
 import android.media.AudioManager.OnAudioFocusChangeListener
 import org.salient.artplayer.player.IMediaPlayer
+import java.lang.ref.WeakReference
 
 /**
  * description: 声音焦点变化管理类
@@ -14,7 +15,7 @@ import org.salient.artplayer.player.IMediaPlayer
  * date: 2020-05-04 10:06 AM.
  */
 open class DefaultAudioFocusChangeListener(
-        private val context: Context,
+        private val contextReference: WeakReference<Context>,
         private val audioManager: IAudioManager,
         private val mediaPlayer: IMediaPlayer<*>?
 ) : OnAudioFocusChangeListener {
@@ -22,6 +23,7 @@ open class DefaultAudioFocusChangeListener(
     override fun onAudioFocusChange(focusChange: Int) {
         when (focusChange) {
             AudioManager.AUDIOFOCUS_GAIN -> {
+                val context = contextReference.get() ?: return
                 // 重新获得焦点，恢复正常音量，恢复播放
                 if (playOnAudioFocus && mediaPlayer?.isPlaying != true) {
                     mediaPlayer?.start();
@@ -32,6 +34,7 @@ open class DefaultAudioFocusChangeListener(
             }
             AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK -> {
                 //短暂失去焦点，无须停止播放，只适当降低播放器音量
+                val context = contextReference.get() ?: return
                 val duckVolume = getCurrentVolume(context) * 0.8f
                 mediaPlayer?.setVolume(duckVolume);
             }
diff --git a/artplayer-core/src/main/java/org/salient/artplayer/audio/DefaultAudioManager.kt b/artplayer-core/src/main/java/org/salient/artplayer/audio/DefaultAudioManager.kt
index 89bea3e..8c5f048 100644
--- a/artplayer-core/src/main/java/org/salient/artplayer/audio/DefaultAudioManager.kt
+++ b/artplayer-core/src/main/java/org/salient/artplayer/audio/DefaultAudioManager.kt
@@ -7,6 +7,7 @@ import android.media.AudioFocusRequest
 import android.media.AudioManager
 import android.os.Build
 import org.salient.artplayer.player.IMediaPlayer
+import java.lang.ref.WeakReference
 
 /**
  * description: 音频管理
@@ -24,7 +25,7 @@ open class DefaultAudioManager(context: Context, mediaPlayer: IMediaPlayer<*>?)
             .build()
     private var audioFocusRequest: AudioFocusRequest? = null
 
-    override var onAudioFocusChangeListener: AudioManager.OnAudioFocusChangeListener = DefaultAudioFocusChangeListener(context, this, mediaPlayer)
+    override var onAudioFocusChangeListener: AudioManager.OnAudioFocusChangeListener = DefaultAudioFocusChangeListener(WeakReference(context), this, mediaPlayer)
 
     override fun mute() {
         audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 0, AudioManager.FLAG_PLAY_SOUND)
diff --git a/artplayer-core/src/main/java/org/salient/artplayer/ui/VideoView.kt b/artplayer-core/src/main/java/org/salient/artplayer/ui/VideoView.kt
index e2587cc..029842d 100644
--- a/artplayer-core/src/main/java/org/salient/artplayer/ui/VideoView.kt
+++ b/artplayer-core/src/main/java/org/salient/artplayer/ui/VideoView.kt
@@ -320,9 +320,4 @@ open class VideoView : FrameLayout, IVideoView {
         }
     }
 
-    override fun onDetachedFromWindow() {
-        removeMediaPlayerObserver(mediaPlayer)
-        super.onDetachedFromWindow()
-    }
-
 }
\ No newline at end of file