diff --git a/README.md b/README.md
index b79412e..a9860c3 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # 我的电视
 
-安卓电视直播软件，内置直播源
+电视直播软件，安装即可使用
 
 ## 使用
 
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index b38f486..5a058f9 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,17 +9,19 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <application
         android:allowBackup="true"
+        android:largeHeap="true"
         android:icon="@drawable/logo"
+        android:logo="@drawable/logo"
+        android:banner="@drawable/banner"
         android:label="@string/app_name"
         android:supportsRtl="true"
+        android:networkSecurityConfig="@xml/network"
+        android:usesCleartextTraffic="true"
         android:theme="@style/Theme.MyTV">
         <activity
             android:keepScreenOn="true"
             android:name=".MainActivity"
-            android:banner="@drawable/banner"
             android:exported="true"
-            android:icon="@drawable/logo"
-            android:logo="@drawable/logo"
             android:screenOrientation="landscape">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
diff --git a/app/src/main/java/com/lizongying/mytv/MainActivity.kt b/app/src/main/java/com/lizongying/mytv/MainActivity.kt
index 5a0164e..4875b6a 100644
--- a/app/src/main/java/com/lizongying/mytv/MainActivity.kt
+++ b/app/src/main/java/com/lizongying/mytv/MainActivity.kt
@@ -35,8 +35,8 @@ class MainActivity : FragmentActivity() {
     private lateinit var gestureDetector: GestureDetector
 
     private val handler = Handler()
-    private val delay: Long = 4000
-    private val delayHideHelp: Long = 10000
+    private val delayHideMain: Long = 5000
+    private val delayHideSetting: Long = 10000
 
     lateinit var sharedPref: SharedPreferences
     private var channelReversal = false
@@ -45,6 +45,7 @@ class MainActivity : FragmentActivity() {
     private var versionName = ""
 
     override fun onCreate(savedInstanceState: Bundle?) {
+        Log.i(TAG, "onCreate")
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
@@ -53,6 +54,7 @@ class MainActivity : FragmentActivity() {
         window.decorView.systemUiVisibility = SYSTEM_UI_FLAG_HIDE_NAVIGATION
 
         if (savedInstanceState == null) {
+            Log.i(TAG, "beginTransaction begin")
             supportFragmentManager.beginTransaction()
                 .add(R.id.main_browse_fragment, playerFragment)
                 .add(R.id.main_browse_fragment, infoFragment)
@@ -60,6 +62,9 @@ class MainActivity : FragmentActivity() {
                 .add(R.id.main_browse_fragment, mainFragment)
                 .hide(mainFragment)
                 .commit()
+            Log.i(TAG, "beginTransaction end")
+        } else {
+            Log.i(TAG, "savedInstanceState $savedInstanceState")
         }
         gestureDetector = GestureDetector(this, GestureListener())
 
@@ -131,11 +136,11 @@ class MainActivity : FragmentActivity() {
     }
 
     fun keepRunnable() {
-        handler.removeCallbacks(hideRunnable)
-        handler.postDelayed(hideRunnable, delay)
+        handler.removeCallbacks(hideMain)
+        handler.postDelayed(hideMain, delayHideMain)
     }
 
-    private val hideRunnable = Runnable {
+    private val hideMain = Runnable {
         if (!mainFragment.isHidden) {
             supportFragmentManager.beginTransaction().hide(mainFragment).commit()
         }
@@ -221,7 +226,7 @@ class MainActivity : FragmentActivity() {
         this.channelNum = channelNum
     }
 
-    private fun showHelp() {
+    private fun showSetting() {
         if (!mainFragment.isHidden) {
             return
         }
@@ -229,15 +234,15 @@ class MainActivity : FragmentActivity() {
         Log.i(TAG, "settingFragment ${settingFragment.isVisible}")
         if (!settingFragment.isVisible) {
             settingFragment.show(supportFragmentManager, "setting")
-            handler.removeCallbacks(hideHelp)
-            handler.postDelayed(hideHelp, delayHideHelp)
+            handler.removeCallbacks(hideSetting)
+            handler.postDelayed(hideSetting, delayHideSetting)
         } else {
-            handler.removeCallbacks(hideHelp)
+            handler.removeCallbacks(hideSetting)
             settingFragment.dismiss()
         }
     }
 
-    private val hideHelp = Runnable {
+    private val hideSetting = Runnable {
         if (settingFragment.isVisible) {
             settingFragment.dismiss()
         }
@@ -358,27 +363,27 @@ class MainActivity : FragmentActivity() {
             }
 
             KeyEvent.KEYCODE_BOOKMARK -> {
-                showHelp()
+                showSetting()
                 return true
             }
 
             KeyEvent.KEYCODE_UNKNOWN -> {
-                showHelp()
+                showSetting()
                 return true
             }
 
             KeyEvent.KEYCODE_HELP -> {
-                showHelp()
+                showSetting()
                 return true
             }
 
             KeyEvent.KEYCODE_SETTINGS -> {
-                showHelp()
+                showSetting()
                 return true
             }
 
             KeyEvent.KEYCODE_MENU -> {
-                showHelp()
+                showSetting()
                 return true
             }
 
@@ -486,6 +491,22 @@ class MainActivity : FragmentActivity() {
         }
     }
 
+    override fun onStart() {
+        Log.i(TAG, "onStart")
+        super.onStart()
+    }
+
+    override fun onResume() {
+        Log.i(TAG, "onResume")
+        super.onResume()
+    }
+
+    override fun onPause() {
+        Log.i(TAG, "onPause")
+        super.onPause()
+        handler.removeCallbacks(hideMain)
+    }
+
     companion object {
         private const val TAG = "MainActivity"
         private const val CHANNEL_REVERSAL = "channel_reversal"
diff --git a/app/src/main/java/com/lizongying/mytv/MainFragment.kt b/app/src/main/java/com/lizongying/mytv/MainFragment.kt
index 0b094fb..2b6793d 100644
--- a/app/src/main/java/com/lizongying/mytv/MainFragment.kt
+++ b/app/src/main/java/com/lizongying/mytv/MainFragment.kt
@@ -44,10 +44,16 @@ class MainFragment : BrowseSupportFragment() {
     private var ready = 0
 
     override fun onCreate(savedInstanceState: Bundle?) {
+        Log.i(TAG, "onCreate")
         super.onCreate(savedInstanceState)
         headersState = HEADERS_DISABLED
     }
 
+    override fun onStart() {
+        Log.i(TAG, "onStart")
+        super.onStart()
+    }
+
     override fun onActivityCreated(savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
 
@@ -308,6 +314,11 @@ class MainFragment : BrowseSupportFragment() {
         }
     }
 
+    override fun onResume() {
+        Log.i(TAG, "onResume")
+        super.onResume()
+    }
+
     override fun onStop() {
         Log.i(TAG, "onStop")
         super.onStop()
@@ -315,7 +326,7 @@ class MainFragment : BrowseSupportFragment() {
             putInt(POSITION, itemPosition)
             apply()
         }
-        Log.i(TAG, "POSITION saved")
+        Log.i(TAG, "$POSITION saved")
     }
 
     override fun onDestroy() {
@@ -324,11 +335,6 @@ class MainFragment : BrowseSupportFragment() {
         handler.removeCallbacks(mUpdateProgramRunnable)
     }
 
-    override fun onResume() {
-        super.onResume()
-        view?.post { view?.requestFocus() }
-    }
-
     companion object {
         private const val TAG = "MainFragment"
         private const val POSITION = "position"
diff --git a/app/src/main/java/com/lizongying/mytv/PlayerFragment.kt b/app/src/main/java/com/lizongying/mytv/PlayerFragment.kt
index f9ea6a0..89aa03c 100644
--- a/app/src/main/java/com/lizongying/mytv/PlayerFragment.kt
+++ b/app/src/main/java/com/lizongying/mytv/PlayerFragment.kt
@@ -81,14 +81,23 @@ class PlayerFragment : Fragment() {
     }
 
     override fun onStart() {
+        Log.i(TAG, "onStart")
         super.onStart()
         if (playerView != null && playerView!!.player?.isPlaying == false) {
-            playerView!!.player?.play()
+            Log.i(TAG, "replay")
+            playerView!!.player?.prepare()
+        } else {
+            Log.i(TAG, "playing")
         }
     }
 
-    override fun onStop() {
-        super.onStop()
+    override fun onResume() {
+        Log.i(TAG, "onResume")
+        super.onResume()
+    }
+
+    override fun onPause() {
+        super.onPause()
         if (playerView != null && playerView!!.player?.isPlaying == true) {
             playerView!!.player?.stop()
         }
diff --git a/app/src/main/java/com/lizongying/mytv/Request.kt b/app/src/main/java/com/lizongying/mytv/Request.kt
index 7dcbdbe..dc34c1f 100644
--- a/app/src/main/java/com/lizongying/mytv/Request.kt
+++ b/app/src/main/java/com/lizongying/mytv/Request.kt
@@ -361,7 +361,7 @@ class Request {
                         val program = response.body()
                         if (program != null) {
                             tvViewModel.addProgram(program.dataListList)
-                            Log.i(TAG, "$title program ${program.dataListList.size}")
+                            Log.d(TAG, "$title program ${program.dataListList.size}")
                         }
                     } else {
                         Log.w(TAG, "$title program error")
diff --git a/app/src/main/res/xml/network.xml b/app/src/main/res/xml/network.xml
new file mode 100644
index 0000000..bb6ab93
--- /dev/null
+++ b/app/src/main/res/xml/network.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<network-security-config>
+    <base-config cleartextTrafficPermitted="true">
+        <trust-anchors>
+            <certificates src="system" />
+            <certificates src="user" />
+        </trust-anchors>
+    </base-config>
+</network-security-config>
\ No newline at end of file