diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 8ce35a34b..547deccb2 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -38,7 +38,9 @@
                 android:resource="@xml/shortcuts"
                 android:launchMode="singleTask" />
         </activity>
-        <activity android:name=".ui.main.MainActivity" />
+        <activity
+            android:name=".ui.main.MainActivity"
+            android:launchMode="singleTask" />
         <activity
             android:name=".ui.book.read.ReadBookActivity"
             android:configChanges="locale|keyboardHidden|orientation|screenSize|smallestScreenSize|screenLayout"
@@ -56,12 +58,24 @@
             android:configChanges="locale|keyboardHidden|orientation|screenSize|smallestScreenSize|screenLayout"
             android:launchMode="singleTask"
             android:windowSoftInputMode="adjustResize|stateHidden" />
-        <activity android:name=".ui.config.ConfigActivity" />
-        <activity android:name=".ui.replacerule.ReplaceRuleActivity" />
-        <activity android:name="io.legado.app.ui.book.search.SearchActivity" />
-        <activity android:name=".ui.about.AboutActivity" />
-        <activity android:name=".ui.qrcode.QrCodeActivity" />
-        <activity android:name=".ui.about.DonateActivity" />
+        <activity
+            android:name=".ui.config.ConfigActivity"
+            android:launchMode="singleTask" />
+        <activity
+            android:name=".ui.replacerule.ReplaceRuleActivity"
+            android:launchMode="singleTask" />
+        <activity
+            android:name="io.legado.app.ui.book.search.SearchActivity"
+            android:launchMode="singleTask" />
+        <activity
+            android:name=".ui.about.AboutActivity"
+            android:launchMode="singleTask" />
+        <activity
+            android:name=".ui.qrcode.QrCodeActivity"
+            android:launchMode="singleTask" />
+        <activity
+            android:name=".ui.about.DonateActivity"
+            android:launchMode="singleTask" />
         <activity android:name=".ui.book.info.BookInfoActivity" />
         <activity android:name="io.legado.app.ui.book.info.edit.BookInfoEditActivity" />
         <activity android:name=".ui.book.source.debug.BookSourceDebugActivity" />
@@ -79,7 +93,9 @@
         </activity>
         <activity android:name=".ui.chapterlist.ChapterListActivity" />
         <activity android:name=".ui.rss.read.ReadRssActivity" />
-        <activity android:name=".ui.audio.AudioPlayActivity" />
+        <activity
+            android:name=".ui.audio.AudioPlayActivity"
+            android:launchMode="singleTask" />
         <activity android:name=".ui.explore.ExploreShowActivity" />
         <activity android:name=".ui.rss.source.manage.RssSourceActivity" />
         <activity android:name=".ui.rss.source.debug.RssSourceDebugActivity" />
diff --git a/app/src/main/java/io/legado/app/ui/audio/AudioPlayActivity.kt b/app/src/main/java/io/legado/app/ui/audio/AudioPlayActivity.kt
index d0cd7ae0b..5fadc7be7 100644
--- a/app/src/main/java/io/legado/app/ui/audio/AudioPlayActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/audio/AudioPlayActivity.kt
@@ -4,7 +4,6 @@ import android.app.Activity
 import android.content.Intent
 import android.graphics.drawable.Drawable
 import android.os.Bundle
-import android.view.KeyEvent
 import android.widget.SeekBar
 import androidx.lifecycle.Observer
 import com.bumptech.glide.RequestBuilder
@@ -27,7 +26,6 @@ import io.legado.app.ui.main.MainActivity
 import io.legado.app.utils.applyTint
 import io.legado.app.utils.getViewModel
 import io.legado.app.utils.observeEvent
-import io.legado.app.utils.snackbar
 import kotlinx.android.synthetic.main.activity_audio_play.*
 import kotlinx.android.synthetic.main.view_title_bar.*
 import org.apache.commons.lang3.time.DateFormatUtils
@@ -130,37 +128,6 @@ class AudioPlayActivity : VMBaseActivity<AudioPlayViewModel>(R.layout.activity_a
         viewModel.loadContent(viewModel.durChapterIndex + 1)
     }
 
-    override fun onKeyLongPress(keyCode: Int, event: KeyEvent?): Boolean {
-        when (keyCode) {
-            KeyEvent.KEYCODE_BACK -> {
-                title_bar.snackbar(R.string.to_backstage, R.string.ok) {
-                    startActivity<MainActivity>()
-                }
-                return true
-            }
-        }
-        return super.onKeyLongPress(keyCode, event)
-    }
-
-    override fun onKeyUp(keyCode: Int, event: KeyEvent?): Boolean {
-        when (keyCode) {
-            KeyEvent.KEYCODE_BACK -> {
-                event?.let {
-                    if ((event.flags and KeyEvent.FLAG_CANCELED_LONG_PRESS == 0)
-                        && event.isTracking
-                        && !event.isCanceled
-                    ) {
-                        if (status == Status.PLAY) {
-                            AudioPlay.pause(this)
-                            return true
-                        }
-                    }
-                }
-            }
-        }
-        return super.onKeyUp(keyCode, event)
-    }
-
     override fun finish() {
         viewModel.book?.let {
             if (!viewModel.inBookshelf) {
@@ -170,7 +137,11 @@ class AudioPlayActivity : VMBaseActivity<AudioPlayViewModel>(R.layout.activity_a
                     noButton { viewModel.removeFromBookshelf { super.finish() } }
                 }.show().applyTint()
             } else {
-                super.finish()
+                if (status == Status.PLAY) {
+                    startActivity<MainActivity>()
+                } else {
+                    super.finish()
+                }
             }
         } ?: super.finish()
     }