diff --git a/README.md b/README.md
index 3f5a6e01..1398b7e6 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,15 @@
 
 ## 更新日志
 
+### v1.4.5（高版本专用）
+
+* 数字选台配置
+
+### v1.4.4（通用版）
+
+* 优化图标显示
+* 增加换台反转
+
 ### v1.3.3
 
 * 部分错误会提示用户
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index f76b90f5..b38f4862 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,7 +9,7 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <application
         android:allowBackup="true"
-        android:icon="@mipmap/ic_launcher"
+        android:icon="@drawable/logo"
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/Theme.MyTV">
diff --git a/app/src/main/java/com/lizongying/mytv/ChannelFragment.kt b/app/src/main/java/com/lizongying/mytv/ChannelFragment.kt
new file mode 100644
index 00000000..4e51b57d
--- /dev/null
+++ b/app/src/main/java/com/lizongying/mytv/ChannelFragment.kt
@@ -0,0 +1,74 @@
+package com.lizongying.mytv
+
+import android.os.Bundle
+import android.os.Handler
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.lizongying.mytv.databinding.ChannelBinding
+import com.lizongying.mytv.models.TVViewModel
+
+class ChannelFragment : Fragment() {
+    private var _binding: ChannelBinding? = null
+    private val binding get() = _binding!!
+
+    private val handler = Handler()
+    private val delay: Long = 3000
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        _binding = ChannelBinding.inflate(inflater, container, false)
+        (activity as MainActivity).fragmentReady()
+        return binding.root
+    }
+
+    fun show(tvViewModel: TVViewModel) {
+        binding.channelContent.text = tvViewModel.id.value.toString()
+        handler.removeCallbacks(removeRunnable)
+        view?.visibility = View.VISIBLE
+        handler.postDelayed(removeRunnable, delay)
+    }
+
+    fun show(channel: String) {
+        if (binding.channelContent.text == "") {
+            binding.channelContent.text = channel
+            handler.removeCallbacks(removeRunnable)
+            view?.visibility = View.VISIBLE
+            handler.postDelayed(removeRunnable, delay)
+        } else {
+            val ch = "${binding.channelContent.text}$channel".toInt()
+            Log.i(TAG, "channel $ch")
+            (activity as MainActivity).play(ch)
+            binding.channelContent.text = ""
+            view?.visibility = View.GONE
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+        handler.postDelayed(removeRunnable, delay)
+    }
+
+    override fun onPause() {
+        super.onPause()
+        handler.removeCallbacks(removeRunnable)
+    }
+
+    private val removeRunnable = Runnable {
+        binding.channelContent.text = ""
+        view?.visibility = View.GONE
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
+    companion object {
+        private const val TAG = "ChannelFragment"
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/lizongying/mytv/MainActivity.kt b/app/src/main/java/com/lizongying/mytv/MainActivity.kt
index 3674e1b0..37209ece 100644
--- a/app/src/main/java/com/lizongying/mytv/MainActivity.kt
+++ b/app/src/main/java/com/lizongying/mytv/MainActivity.kt
@@ -27,6 +27,7 @@ class MainActivity : FragmentActivity() {
     var playerFragment = PlayerFragment()
     private val mainFragment = MainFragment()
     private val infoFragment = InfoFragment()
+    private val channelFragment = ChannelFragment()
 
     private var doubleBackToExitPressedOnce = false
 
@@ -34,9 +35,14 @@ class MainActivity : FragmentActivity() {
 
     private val handler = Handler()
     private val delay: Long = 4000
+    private val delayHideHelp: Long = 10000
 
     private lateinit var sharedPref: SharedPreferences
     private var channelReversal = false
+    private var channelNum = true
+
+    private var versionName = ""
+    private lateinit var dialogFragment: MyDialogFragment
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -50,19 +56,28 @@ class MainActivity : FragmentActivity() {
             supportFragmentManager.beginTransaction()
                 .add(R.id.main_browse_fragment, playerFragment)
                 .add(R.id.main_browse_fragment, infoFragment)
+                .add(R.id.main_browse_fragment, channelFragment)
                 .add(R.id.main_browse_fragment, mainFragment)
                 .hide(infoFragment)
+                .hide(channelFragment)
                 .commit()
             mainFragment.view?.requestFocus()
         }
         gestureDetector = GestureDetector(this, GestureListener())
 
         sharedPref = getPreferences(Context.MODE_PRIVATE)
-        channelReversal = sharedPref.getBoolean(CHANNEL_REVERSAL, false)
+        channelReversal = sharedPref.getBoolean(CHANNEL_REVERSAL, channelReversal)
+        channelNum = sharedPref.getBoolean(CHANNEL_NUM, channelNum)
+
+        versionName = getPackageInfo().versionName
+        dialogFragment = MyDialogFragment(versionName, channelReversal, channelNum)
     }
 
     fun showInfoFragment(tvViewModel: TVViewModel) {
         infoFragment.show(tvViewModel)
+        if (channelNum) {
+            channelFragment.show(tvViewModel)
+        }
     }
 
     fun play(tvViewModel: TVViewModel) {
@@ -70,6 +85,10 @@ class MainActivity : FragmentActivity() {
         mainFragment.view?.requestFocus()
     }
 
+    fun play(itemPosition: Int) {
+        mainFragment.play(itemPosition)
+    }
+
     fun prev() {
         mainFragment.prev()
     }
@@ -79,11 +98,11 @@ class MainActivity : FragmentActivity() {
     }
 
     private fun prevSource() {
-        mainFragment.prevSource()
+//        mainFragment.prevSource()
     }
 
     private fun nextSource() {
-        mainFragment.nextSource()
+//        mainFragment.nextSource()
     }
 
     fun switchMainFragment() {
@@ -182,14 +201,34 @@ class MainActivity : FragmentActivity() {
         this.channelReversal = channelReversal
     }
 
+    fun saveChannelNum(channelNum: Boolean) {
+        with(sharedPref.edit()) {
+            putBoolean(CHANNEL_NUM, channelNum)
+            apply()
+        }
+        this.channelNum = channelNum
+    }
+
     private fun showHelp() {
         if (!mainFragment.isHidden) {
             return
         }
 
-        val versionName = getPackageInfo().versionName
-        val dialogFragment = MyDialogFragment(versionName, channelReversal)
-        dialogFragment.show(supportFragmentManager, "settings_dialog")
+        Log.i(TAG, "dialogFragment ${dialogFragment.isVisible}")
+        if (!dialogFragment.isVisible) {
+            dialogFragment.show(supportFragmentManager, "settings_dialog")
+            handler.removeCallbacks(hideHelp)
+            handler.postDelayed(hideHelp, delayHideHelp)
+        } else {
+            handler.removeCallbacks(hideHelp)
+            dialogFragment.dismiss()
+        }
+    }
+
+    private val hideHelp = Runnable {
+        if (dialogFragment.isVisible) {
+            dialogFragment.dismiss()
+        }
     }
 
     private fun channelUp() {
@@ -244,8 +283,72 @@ class MainActivity : FragmentActivity() {
         }, 2000)
     }
 
+    private fun showChannel(channel: String) {
+        if (!mainFragment.isHidden) {
+            return
+        }
+
+        if (dialogFragment.isVisible) {
+            return
+        }
+
+        if (channelNum) {
+            channelFragment.show(channel)
+        }
+    }
+
     override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
         when (keyCode) {
+            KeyEvent.KEYCODE_0 -> {
+                showChannel("0")
+                return true
+            }
+
+            KeyEvent.KEYCODE_1 -> {
+                showChannel("1")
+                return true
+            }
+
+            KeyEvent.KEYCODE_2 -> {
+                showChannel("2")
+                return true
+            }
+
+            KeyEvent.KEYCODE_3 -> {
+                showChannel("3")
+                return true
+            }
+
+            KeyEvent.KEYCODE_4 -> {
+                showChannel("4")
+                return true
+            }
+
+            KeyEvent.KEYCODE_5 -> {
+                showChannel("5")
+                return true
+            }
+
+            KeyEvent.KEYCODE_6 -> {
+                showChannel("6")
+                return true
+            }
+
+            KeyEvent.KEYCODE_7 -> {
+                showChannel("7")
+                return true
+            }
+
+            KeyEvent.KEYCODE_8 -> {
+                showChannel("8")
+                return true
+            }
+
+            KeyEvent.KEYCODE_9 -> {
+                showChannel("9")
+                return true
+            }
+
             KeyEvent.KEYCODE_ESCAPE -> {
                 back()
                 return true
@@ -388,5 +491,6 @@ class MainActivity : FragmentActivity() {
     companion object {
         private const val TAG = "MainActivity"
         private const val CHANNEL_REVERSAL = "channel_reversal"
+        private const val CHANNEL_NUM = "channel_num"
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/lizongying/mytv/MainFragment.kt b/app/src/main/java/com/lizongying/mytv/MainFragment.kt
index 566d70c9..64804bec 100644
--- a/app/src/main/java/com/lizongying/mytv/MainFragment.kt
+++ b/app/src/main/java/com/lizongying/mytv/MainFragment.kt
@@ -216,7 +216,7 @@ class MainFragment : BrowseSupportFragment() {
     fun fragmentReady() {
         ready++
         Log.i(TAG, "ready $ready")
-        if (ready == 3) {
+        if (ready == 4) {
 //            request.fetchPage()
             val tvViewModel = tvListViewModel.getTVViewModel(itemPosition)
             tvViewModel?.changed()
@@ -225,6 +225,16 @@ class MainFragment : BrowseSupportFragment() {
         }
     }
 
+    fun play(itemPosition: Int) {
+        view?.post {
+            if (itemPosition < tvListViewModel.size()) {
+                this.itemPosition = itemPosition
+                tvListViewModel.setItemPosition(itemPosition)
+                tvListViewModel.getTVViewModel(itemPosition)?.changed()
+            }
+        }
+    }
+
     fun prev() {
         view?.post {
             itemPosition--
@@ -232,9 +242,7 @@ class MainFragment : BrowseSupportFragment() {
                 itemPosition = tvListViewModel.size() - 1
             }
             tvListViewModel.setItemPosition(itemPosition)
-
-            val tvViewModel = tvListViewModel.getTVViewModel(itemPosition)
-            tvViewModel?.changed()
+            tvListViewModel.getTVViewModel(itemPosition)?.changed()
         }
     }
 
@@ -245,9 +253,7 @@ class MainFragment : BrowseSupportFragment() {
                 itemPosition = 0
             }
             tvListViewModel.setItemPosition(itemPosition)
-
-            val tvViewModel = tvListViewModel.getTVViewModel(itemPosition)
-            tvViewModel?.changed()
+            tvListViewModel.getTVViewModel(itemPosition)?.changed()
         }
     }
 
@@ -297,9 +303,7 @@ class MainFragment : BrowseSupportFragment() {
                 if (itemPosition != item.id.value!!) {
                     itemPosition = item.id.value!!
                     tvListViewModel.setItemPosition(itemPosition)
-
-                    val tvViewModel = tvListViewModel.getTVViewModel(itemPosition)
-                    tvViewModel?.changed()
+                    tvListViewModel.getTVViewModel(itemPosition)?.changed()
                 }
                 (activity as? MainActivity)?.switchMainFragment()
             }
diff --git a/app/src/main/java/com/lizongying/mytv/MyDialogFragment.kt b/app/src/main/java/com/lizongying/mytv/MyDialogFragment.kt
index 71c328d9..2bf8413a 100644
--- a/app/src/main/java/com/lizongying/mytv/MyDialogFragment.kt
+++ b/app/src/main/java/com/lizongying/mytv/MyDialogFragment.kt
@@ -8,12 +8,20 @@ import androidx.fragment.app.DialogFragment
 import com.lizongying.mytv.databinding.DialogBinding
 
 
-class MyDialogFragment(private val versionName: String, private val channelReversal: Boolean) :
+class MyDialogFragment(private val versionName: String,
+                       private val channelReversal: Boolean,
+                       private val channelNum: Boolean,
+    ) :
     DialogFragment() {
 
     private var _binding: DialogBinding? = null
     private val binding get() = _binding!!
 
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setStyle(STYLE_NO_TITLE, 0)
+    }
+
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
@@ -23,12 +31,18 @@ class MyDialogFragment(private val versionName: String, private val channelRever
         _binding?.version?.text =
             "当前版本: $versionName\n获取最新: https://github.com/lizongying/my-tv/releases/"
 
-        val switchView = _binding?.switchView
-        switchView?.isChecked = channelReversal
-        switchView?.setOnCheckedChangeListener { _, isChecked ->
+        val switchChannelReversal = _binding?.switchChannelReversal
+        switchChannelReversal?.isChecked = channelReversal
+        switchChannelReversal?.setOnCheckedChangeListener { _, isChecked ->
             (activity as MainActivity).saveChannelReversal(isChecked)
         }
 
+        val switchChannelNum = _binding?.switchChannelNum
+        switchChannelNum?.isChecked = channelNum
+        switchChannelNum?.setOnCheckedChangeListener { _, isChecked ->
+            (activity as MainActivity).saveChannelNum(isChecked)
+        }
+
         return binding.root
     }
 
diff --git a/app/src/main/java/com/lizongying/mytv/PlayerFragment.kt b/app/src/main/java/com/lizongying/mytv/PlayerFragment.kt
index 77b5557c..b3218455 100644
--- a/app/src/main/java/com/lizongying/mytv/PlayerFragment.kt
+++ b/app/src/main/java/com/lizongying/mytv/PlayerFragment.kt
@@ -103,6 +103,11 @@ class PlayerFragment : Fragment() {
         }
     }
 
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
     companion object {
         private const val TAG = "PlaybackVideoFragment"
     }
diff --git a/app/src/main/res/layout/channel.xml b/app/src/main/res/layout/channel.xml
new file mode 100644
index 00000000..47c664a8
--- /dev/null
+++ b/app/src/main/res/layout/channel.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/channel_fragment"
+    android:layout_width="80dp"
+    android:layout_height="80dp"
+    android:layout_gravity="end|top"
+    android:layout_marginTop="20dp"
+    android:layout_marginEnd="50dp">
+
+    <TextView
+        android:id="@+id/channel_content"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="end"
+        android:layout_marginTop="0dp"
+        android:text="99"
+        android:textColor="#FFEEEEEE"
+        android:textStyle="bold"
+        android:textSize="50sp" />
+</FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/dialog.xml b/app/src/main/res/layout/dialog.xml
index 45bf1fc1..75c8c46f 100644
--- a/app/src/main/res/layout/dialog.xml
+++ b/app/src/main/res/layout/dialog.xml
@@ -26,12 +26,18 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="10dp"
-                android:layout_marginBottom="10dp"
                 android:text="当前版本: $versionName\n获取最新: https://github.com/lizongying/my-tv/releases/"
                 ></TextView>
             <Switch
-                android:id="@+id/switch_view"
+                android:id="@+id/switch_channel_reversal"
                 android:text="@string/title_channel_reversal"
+                android:layout_marginTop="10dp"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" />
+            <Switch
+                android:id="@+id/switch_channel_num"
+                android:text="@string/title_channel_num"
+                android:layout_marginTop="10dp"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content" />
         </LinearLayout>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d9b2b040..e74e266a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,4 +1,5 @@
 <resources>
     <string name="app_name">我的电视</string>
-    <string name="title_channel_reversal">频道反转</string>
+    <string name="title_channel_reversal">换台反转</string>
+    <string name="title_channel_num">数字选台</string>
 </resources>
\ No newline at end of file