diff --git a/app/build.gradle b/app/build.gradle
index 469ff470..6ae5d562 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -29,7 +29,7 @@ android {
         applicationId "com.dirror.music"
         minSdkVersion 23
         targetSdkVersion 30
-        versionCode 286
+        versionCode 287
         versionName "2.4.0-alpha"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
diff --git a/app/src/main/java/com/dirror/music/adapter/DetailPlaylistAdapter.kt b/app/src/main/java/com/dirror/music/adapter/DetailPlaylistAdapter.kt
index 70a7471c..5008a9a9 100644
--- a/app/src/main/java/com/dirror/music/adapter/DetailPlaylistAdapter.kt
+++ b/app/src/main/java/com/dirror/music/adapter/DetailPlaylistAdapter.kt
@@ -12,6 +12,8 @@ import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.recyclerview.widget.RecyclerView
 import com.dirror.music.MyApplication
 import com.dirror.music.R
+import com.dirror.music.data.PLAYLIST_TAG_MY_FAVORITE
+import com.dirror.music.data.PLAYLIST_TAG_NORMAL
 import com.dirror.music.music.standard.data.StandardSongData
 import com.dirror.music.ui.activity.PlayerActivity
 import com.dirror.music.ui.dialog.SongMenuDialog
@@ -20,7 +22,11 @@ import com.dirror.music.util.parseArtist
 /**
  * 歌单适配器
  */
-class DetailPlaylistAdapter(private val songDataList: ArrayList<StandardSongData>, private val activity: Activity): RecyclerView.Adapter<DetailPlaylistAdapter.ViewHolder>() {
+class DetailPlaylistAdapter
+    @JvmOverloads
+    constructor(private val songDataList: ArrayList<StandardSongData>,
+                private val activity: Activity,
+                private val tag: Int = PLAYLIST_TAG_NORMAL): RecyclerView.Adapter<DetailPlaylistAdapter.ViewHolder>() {
 
     inner class ViewHolder(view: View): RecyclerView.ViewHolder(view) {
         val tvNumber: TextView = view.findViewById(R.id.tvNumber)
@@ -58,7 +64,7 @@ class DetailPlaylistAdapter(private val songDataList: ArrayList<StandardSongData
             }
             // 更多点击，每首歌右边的三点菜单
             ivMore.setOnClickListener {
-                SongMenuDialog(it.context).apply {
+                SongMenuDialog(it.context, tag).apply {
                     setSongData(song)
                     setActivity(activity)
                     show()
@@ -66,7 +72,7 @@ class DetailPlaylistAdapter(private val songDataList: ArrayList<StandardSongData
             }
             // 长按
             clSong.setOnLongClickListener {
-                SongMenuDialog(it.context).apply {
+                SongMenuDialog(it.context, tag).apply {
                     setSongData(song)
                     setActivity(activity)
                     show()
diff --git a/app/src/main/java/com/dirror/music/data/PlaylistTag.kt b/app/src/main/java/com/dirror/music/data/PlaylistTag.kt
new file mode 100644
index 00000000..73137eeb
--- /dev/null
+++ b/app/src/main/java/com/dirror/music/data/PlaylistTag.kt
@@ -0,0 +1,4 @@
+package com.dirror.music.data
+
+const val PLAYLIST_TAG_NORMAL = 0
+const val PLAYLIST_TAG_MY_FAVORITE = 1
\ No newline at end of file
diff --git a/app/src/main/java/com/dirror/music/music/local/MyFavorite.kt b/app/src/main/java/com/dirror/music/music/local/MyFavorite.kt
index 7636d97a..fa92c114 100644
--- a/app/src/main/java/com/dirror/music/music/local/MyFavorite.kt
+++ b/app/src/main/java/com/dirror/music/music/local/MyFavorite.kt
@@ -37,4 +37,23 @@ object MyFavorite {
         }
     }
 
+    /**
+     * 删除一首歌
+     */
+    @TestOnly
+    fun delete(songData: StandardSongData) {
+        thread {
+            myFavoriteDao.delete(MyFavoriteData(songData))
+        }
+    }
+
+    /**
+     * 通过 id 删除一首歌
+     */
+    fun deleteById(id: String) {
+        thread {
+            myFavoriteDao.deleteById(id)
+        }
+    }
+
 }
diff --git a/app/src/main/java/com/dirror/music/room/AppDatabase.kt b/app/src/main/java/com/dirror/music/room/AppDatabase.kt
index 4a396be2..00ae7f7f 100644
--- a/app/src/main/java/com/dirror/music/room/AppDatabase.kt
+++ b/app/src/main/java/com/dirror/music/room/AppDatabase.kt
@@ -5,13 +5,15 @@ import androidx.room.Database
 import androidx.room.Room
 import androidx.room.RoomDatabase
 
-@Database(version = 1, entities = [MyFavoriteData::class])
+@Database(version = AppDatabase.DATABASE_VERSION, entities = [MyFavoriteData::class])
 abstract class AppDatabase: RoomDatabase() {
 
     abstract fun myFavoriteDao(): MyFavoriteDao
 
     companion object {
 
+        const val DATABASE_VERSION = 1
+
         private var instance: AppDatabase? = null
 
         @Synchronized
@@ -21,7 +23,7 @@ abstract class AppDatabase: RoomDatabase() {
             }
             return Room.databaseBuilder(context.applicationContext,
                 AppDatabase::class.java, "app_database")
-                .fallbackToDestructiveMigration() // 上线移除
+                // .fallbackToDestructiveMigration() // 上线移除
                 .build().apply {
                     instance = this
                 }
diff --git a/app/src/main/java/com/dirror/music/room/MyFavoriteDao.kt b/app/src/main/java/com/dirror/music/room/MyFavoriteDao.kt
index 1b13035e..473f37f5 100644
--- a/app/src/main/java/com/dirror/music/room/MyFavoriteDao.kt
+++ b/app/src/main/java/com/dirror/music/room/MyFavoriteDao.kt
@@ -1,7 +1,6 @@
 package com.dirror.music.room
 
 import androidx.room.*
-import com.dirror.music.music.standard.data.StandardSongData
 
 @Dao
 interface MyFavoriteDao {
@@ -18,4 +17,7 @@ interface MyFavoriteDao {
     @Delete
     fun delete(myFavoriteData: MyFavoriteData)
 
+    @Query("delete from MyFavoriteData where id = :id")
+    fun deleteById(id: String): Int
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/dirror/music/ui/activity/AboutActivity2.kt b/app/src/main/java/com/dirror/music/ui/activity/AboutActivity2.kt
index 36de566b..f3077041 100644
--- a/app/src/main/java/com/dirror/music/ui/activity/AboutActivity2.kt
+++ b/app/src/main/java/com/dirror/music/ui/activity/AboutActivity2.kt
@@ -6,6 +6,7 @@ import android.os.Bundle
 import com.dirror.music.MyApplication
 import com.dirror.music.R
 import com.dirror.music.databinding.ActivityAbout2Binding
+import com.dirror.music.ui.dialog.AppInfoDialog
 import com.dirror.music.util.Secure
 import com.dirror.music.util.UpdateUtil
 import com.dirror.music.util.getVisionCode
@@ -64,6 +65,11 @@ class AboutActivity2 : AppCompatActivity() {
             itemHistoryVersion.setOnClickListener { MyApplication.activityManager.startWebActivity(this@AboutActivity2, HISTORY_VERSION) }
             // 使用开源项目
             itemOpenSourceCode.setOnClickListener { startActivity(Intent(this@AboutActivity2, OpenSourceActivity::class.java)) }
+            // ivLogo
+            ivLogo.setOnLongClickListener {
+                AppInfoDialog(this@AboutActivity2).show()
+                return@setOnLongClickListener true
+            }
         }
     }
 
diff --git a/app/src/main/java/com/dirror/music/ui/activity/PlaylistActivity.kt b/app/src/main/java/com/dirror/music/ui/activity/PlaylistActivity.kt
index 9d60ecbc..a32cd462 100644
--- a/app/src/main/java/com/dirror/music/ui/activity/PlaylistActivity.kt
+++ b/app/src/main/java/com/dirror/music/ui/activity/PlaylistActivity.kt
@@ -15,6 +15,8 @@ import com.bumptech.glide.request.RequestOptions
 import com.dirror.music.MyApplication
 import com.dirror.music.R
 import com.dirror.music.adapter.DetailPlaylistAdapter
+import com.dirror.music.data.PLAYLIST_TAG_MY_FAVORITE
+import com.dirror.music.data.PLAYLIST_TAG_NORMAL
 import com.dirror.music.databinding.ActivityPlaylistBinding
 import com.dirror.music.music.local.MyFavorite
 import com.dirror.music.music.netease.Playlist
@@ -159,7 +161,7 @@ class PlaylistActivity : AppCompatActivity() {
                 // 我喜欢
                 if (id == 0L) {
                     MyFavorite.read {
-                        initRecycleView(it)
+                        initRecycleView(it, PLAYLIST_TAG_MY_FAVORITE)
                     }
                 }
             }
@@ -236,12 +238,12 @@ class PlaylistActivity : AppCompatActivity() {
     }
 
     @SuppressLint("SetTextI18n")
-    private fun initRecycleView(songList: ArrayList<StandardSongData>) {
+    private fun initRecycleView(songList: ArrayList<StandardSongData>, tag: Int = PLAYLIST_TAG_NORMAL) {
         runOnMainThread {
             binding.clLoading.visibility = View.GONE
             binding.rvPlaylist.layoutManager =  LinearLayoutManager(this@PlaylistActivity)
             // 改变全局变量
-            detailPlaylistAdapter = DetailPlaylistAdapter(songList, this@PlaylistActivity)
+            detailPlaylistAdapter = DetailPlaylistAdapter(songList, this@PlaylistActivity, tag)
             binding.rvPlaylist.adapter = detailPlaylistAdapter
             binding.tvPlayAll.text = "播放全部(${songList.size})"
             binding.lottieLoading.pauseAnimation()
diff --git a/app/src/main/java/com/dirror/music/ui/activity/WebActivity.kt b/app/src/main/java/com/dirror/music/ui/activity/WebActivity.kt
index e2fc685c..781f86cb 100644
--- a/app/src/main/java/com/dirror/music/ui/activity/WebActivity.kt
+++ b/app/src/main/java/com/dirror/music/ui/activity/WebActivity.kt
@@ -12,6 +12,10 @@ import com.dirror.music.databinding.ActivityWebBinding
 
 class WebActivity : AppCompatActivity() {
 
+    companion object {
+        const val EXTRA_TITLE = "extra_title"
+    }
+
     private lateinit var binding: ActivityWebBinding
 
     @SuppressLint("SetJavaScriptEnabled")
@@ -21,6 +25,7 @@ class WebActivity : AppCompatActivity() {
         setContentView(binding.root)
 
         val extraWebUrlStr = intent.getStringExtra("extra_webUrlStr")
+        val extraTitle = intent.getStringExtra(EXTRA_TITLE)
 
         binding.webView.settings.javaScriptEnabled = true // 禁用 JavaScript
         binding.webView.settings.allowFileAccess = false // 禁止访问私有文件数据
diff --git a/app/src/main/java/com/dirror/music/ui/dialog/AppInfoDialog.kt b/app/src/main/java/com/dirror/music/ui/dialog/AppInfoDialog.kt
new file mode 100644
index 00000000..1ef21b96
--- /dev/null
+++ b/app/src/main/java/com/dirror/music/ui/dialog/AppInfoDialog.kt
@@ -0,0 +1,41 @@
+package com.dirror.music.ui.dialog
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.os.Build
+import com.dirror.music.MyApplication
+import com.dirror.music.databinding.DialogTextInfoBinding
+import com.dirror.music.foyou.sentence.foyoulibrary.FoyouLibrary
+import com.dirror.music.room.AppDatabase
+import com.dirror.music.util.Secure
+import com.dirror.music.util.defaultTypeface
+import com.dirror.music.util.getVisionCode
+import com.dirror.music.util.getVisionName
+
+class AppInfoDialog(context: Context) : BaseBottomSheetDialog(context) {
+
+    val binding = DialogTextInfoBinding.inflate(layoutInflater)
+
+    init {
+        setContentView(binding.root)
+    }
+
+    @SuppressLint("SetTextI18n")
+    override fun initView() {
+        super.initView()
+        binding.apply {
+            tvText.typeface = defaultTypeface(MyApplication.context)
+            tvText.text = """
+                [app.ver     ] ${getVisionName()}
+                [app.build   ] ${getVisionCode()}
+                [is debug    ] ${Secure.isDebug()}
+                [foyou.ver   ] ${FoyouLibrary.VERSION}
+                [database.ver] ${AppDatabase.DATABASE_VERSION}
+                [model       ] ${Build.MODEL}
+                [android.ver ] ${Build.VERSION.RELEASE}
+                [android.sdk ] ${Build.VERSION.SDK_INT}
+            """.trimIndent()
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/dirror/music/ui/dialog/BaseBottomSheetDialog.kt b/app/src/main/java/com/dirror/music/ui/dialog/BaseBottomSheetDialog.kt
new file mode 100644
index 00000000..9dd8aa27
--- /dev/null
+++ b/app/src/main/java/com/dirror/music/ui/dialog/BaseBottomSheetDialog.kt
@@ -0,0 +1,29 @@
+package com.dirror.music.ui.dialog
+
+import android.content.Context
+import android.os.Bundle
+import android.view.Gravity
+import android.view.ViewGroup
+import com.dirror.music.R
+import com.google.android.material.bottomsheet.BottomSheetDialog
+
+abstract class BaseBottomSheetDialog(context: Context): BottomSheetDialog(context, R.style.style_default_dialog) {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        window?.setGravity(Gravity.BOTTOM)
+        window?.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
+        window?.setWindowAnimations(R.style.dialog_animation)
+        initView()
+        initListener()
+    }
+
+    open fun initView() {
+
+    }
+
+    open fun initListener() {
+
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/dirror/music/ui/dialog/PlaylistDialog.kt b/app/src/main/java/com/dirror/music/ui/dialog/PlaylistDialog.kt
index 617dbd0f..cea54a8b 100644
--- a/app/src/main/java/com/dirror/music/ui/dialog/PlaylistDialog.kt
+++ b/app/src/main/java/com/dirror/music/ui/dialog/PlaylistDialog.kt
@@ -11,29 +11,20 @@ import com.dirror.music.adapter.PlaylistDialogAdapter
 import com.dirror.music.databinding.DialogPlayListBinding
 import com.google.android.material.bottomsheet.BottomSheetDialog
 
-class PlaylistDialog: BottomSheetDialog {
+class PlaylistDialog(context: Context): BaseBottomSheetDialog(context) {
 
     private var binding: DialogPlayListBinding = DialogPlayListBinding.inflate(layoutInflater)
 
-    constructor(context: Context) : this(context, 0)
-
-    constructor(context: Context, themeResId: Int) : super(context, R.style.style_default_dialog) {
+    init {
         setContentView(binding.root)
-        // 设置显示位置
-        window?.setGravity(Gravity.BOTTOM)
-        // 设置大小
-        window?.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
-        window?.setWindowAnimations(R.style.dialog_animation)
     }
 
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-
+    override fun initView() {
+        super.initView()
         binding.rvPlaylist.layoutManager = LinearLayoutManager(context)
         MyApplication.musicBinderInterface?.getPlaylist()?.let {
             binding.rvPlaylist.adapter = PlaylistDialogAdapter(it)
             binding.tvPlaylist.text = this.context.getString(R.string.playlist_number, it.size)
         }
-
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/dirror/music/ui/dialog/SongMenuDialog.kt b/app/src/main/java/com/dirror/music/ui/dialog/SongMenuDialog.kt
index 79de78cb..835bd40a 100644
--- a/app/src/main/java/com/dirror/music/ui/dialog/SongMenuDialog.kt
+++ b/app/src/main/java/com/dirror/music/ui/dialog/SongMenuDialog.kt
@@ -8,30 +8,36 @@ import android.view.Gravity
 import android.view.ViewGroup
 import com.dirror.music.MyApplication
 import com.dirror.music.R
+import com.dirror.music.data.PLAYLIST_TAG_MY_FAVORITE
+import com.dirror.music.data.PLAYLIST_TAG_NORMAL
 import com.dirror.music.databinding.DialogSongMenuBinding
+import com.dirror.music.music.local.MyFavorite
 import com.dirror.music.music.standard.data.StandardSongData
 import com.dirror.music.util.Secure
 import com.dirror.music.util.toast
+import com.google.android.material.bottomsheet.BottomSheetDialog
 
-class SongMenuDialog(context: Context) : Dialog(context, R.style.style_default_dialog) {
+class SongMenuDialog
+    @JvmOverloads
+    constructor(context: Context, private val tag: Int = PLAYLIST_TAG_NORMAL) : BaseBottomSheetDialog(context) {
 
     private var binding = DialogSongMenuBinding.inflate(layoutInflater)
 
     init {
         setContentView(binding.root)
-        window?.setGravity(Gravity.BOTTOM)
-        window?.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
     }
 
     private lateinit var songData: StandardSongData
     private lateinit var activity: Activity
 
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        initListener()
+
+    override fun initView() {
+        super.initView()
+
     }
 
-    private fun initListener() {
+    override fun initListener() {
+        super.initListener()
         binding.apply {
             // 歌曲信息
             itemSongInfo.setOnClickListener {
@@ -47,10 +53,9 @@ class SongMenuDialog(context: Context) : Dialog(context, R.style.style_default_d
             }
             // 歌曲删除
             itemDeleteSong.setOnClickListener {
-                if (Secure.isDebug()) {
-                    toast("开发中")
-                } else {
-                    toast("测试")
+                if (tag == PLAYLIST_TAG_MY_FAVORITE) {
+                    MyFavorite.deleteById(songData.id)
+                    toast("删除成功")
                 }
             }
         }
diff --git a/app/src/main/java/com/dirror/music/util/TopLevelFuncation.kt b/app/src/main/java/com/dirror/music/util/TopLevelFuncation.kt
index 3b7a36ca..9d044b6f 100644
--- a/app/src/main/java/com/dirror/music/util/TopLevelFuncation.kt
+++ b/app/src/main/java/com/dirror/music/util/TopLevelFuncation.kt
@@ -5,6 +5,7 @@ import android.content.ClipData
 import android.content.ClipboardManager
 import android.content.Context
 import android.content.Intent
+import android.graphics.Typeface
 import android.net.Uri
 import android.os.Bundle
 import android.os.Handler
@@ -163,4 +164,8 @@ fun openJim(context: Context) {
     } catch (e: Exception) {
         toast("失败")
     }
+}
+
+fun defaultTypeface(context: Context): Typeface {
+    return Typeface.createFromAsset(context.assets, "fonts/Moriafly-Regular.ttf")
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/dialog_song_menu.xml b/app/src/main/res/layout/dialog_song_menu.xml
index 77f994bc..33c356bf 100644
--- a/app/src/main/res/layout/dialog_song_menu.xml
+++ b/app/src/main/res/layout/dialog_song_menu.xml
@@ -3,15 +3,11 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="@drawable/bg_dialog">
+    android:background="@drawable/bg_slide_layout">
 
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginStart="16dp"
-        android:layout_marginTop="16dp"
-        android:layout_marginEnd="16dp"
-        android:layout_marginBottom="16dp"
         android:orientation="vertical"
         android:paddingTop="16dp"
         android:paddingBottom="16dp"
diff --git a/app/src/main/res/layout/dialog_text_info.xml b/app/src/main/res/layout/dialog_text_info.xml
new file mode 100644
index 00000000..9e0fa48b
--- /dev/null
+++ b/app/src/main/res/layout/dialog_text_info.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:background="@drawable/bg_slide_layout"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <TextView
+        android:id="@+id/tvText"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:lineSpacingExtra="@dimen/lineSpacingExtra"
+        android:layout_marginTop="@dimen/defaultPadding"
+        android:layout_marginStart="@dimen/defaultPadding"
+        android:layout_marginEnd="@dimen/defaultPadding"
+        android:layout_marginBottom="@dimen/defaultPadding"
+        android:textColor="@color/colorTextForeground"
+        android:textSize="@dimen/subTextSize"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index f80e0af3..615987eb 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -6,6 +6,8 @@
 
     <!-- 标准字体 -->
     <dimen name="defaultTextSize">16sp</dimen>
+    <dimen name="subTextSize">12sp</dimen>
+    <dimen name="lineSpacingExtra">4dp</dimen>
 
     <integer name="lrc_animation_duration">1000</integer>
     <dimen name="lrc_text_size">16sp</dimen>