diff --git a/app/src/main/java/com/example/myapplication/SettingStorage.kt b/app/src/main/java/com/example/myapplication/SettingStorage.kt
index 087ca38..d342ba3 100644
--- a/app/src/main/java/com/example/myapplication/SettingStorage.kt
+++ b/app/src/main/java/com/example/myapplication/SettingStorage.kt
@@ -16,7 +16,8 @@ import kotlinx.coroutines.runBlocking
 val Context.settingStore: DataStore<Preferences> by preferencesDataStore(name = "app_settings")
 
 class SettingStorage(private val context: Context) {
-  val showExtension = booleanPreferencesKey("show_extension")
+  val hideExtension = booleanPreferencesKey("hide_extension")
+  val hideHiddenFile = booleanPreferencesKey("hide_hidden_file")
 
 
   fun <T> get(key: Preferences.Key<T>): T? =
diff --git a/app/src/main/java/com/example/myapplication/compose/SettingActivity.kt b/app/src/main/java/com/example/myapplication/compose/SettingActivity.kt
index c628336..7a635bf 100644
--- a/app/src/main/java/com/example/myapplication/compose/SettingActivity.kt
+++ b/app/src/main/java/com/example/myapplication/compose/SettingActivity.kt
@@ -99,14 +99,22 @@ class SettingActivity : ComponentActivity() {
           }
 
           setting.BooleanSetting(
-            name = ContextCompat.getString(context, R.string.setting_show_extension),
+            name = ContextCompat.getString(context, R.string.setting_hide_extension),
             description = ContextCompat.getString(
               context,
-              R.string.setting_show_extension_description
+              R.string.setting_hide_extension_description
             ),
-            initialState = settingStorage.get(settingStorage.showExtension) ?: true
-          ) { settingStorage.set(settingStorage.showExtension, it) }
+            initialState = settingStorage.get(settingStorage.hideExtension) ?: false
+          ) { settingStorage.set(settingStorage.hideExtension, it) }
 
+          setting.BooleanSetting(
+            name = ContextCompat.getString(context, R.string.setting_hide_hidden_file),
+            description = ContextCompat.getString(
+              context,
+              R.string.setting_hide_hidden_file_description
+            ),
+            initialState = settingStorage.get(settingStorage.hideHiddenFile) ?: false
+          ) { settingStorage.set(settingStorage.hideHiddenFile, it) }
 
           Spacer(modifier = Modifier.weight(1f))
 
diff --git a/app/src/main/java/com/example/myapplication/compose/ui/FileColumn.kt b/app/src/main/java/com/example/myapplication/compose/ui/FileColumn.kt
index 73d0c26..adac3c9 100644
--- a/app/src/main/java/com/example/myapplication/compose/ui/FileColumn.kt
+++ b/app/src/main/java/com/example/myapplication/compose/ui/FileColumn.kt
@@ -94,10 +94,18 @@ class FileColumn(val context: Context) {
       fileList.clear()
       val wfList = cwd.listFiles()?.map { WrappedFile(it) }
       if (wfList != null) {
-        if (sortByTime) {
-          fileList.addAll(wfList.sortedBy { it.lastModifiedTime })
-        } else {
-          fileList.addAll(wfList.sortedBy { it.size })
+        if (settingStorage.get(settingStorage.hideHiddenFile) == true) { // 隐藏点文件，默认 false
+          if (sortByTime) {
+            fileList.addAll(wfList.sortedBy { it.lastModifiedTime }.filter { !it.name.startsWith('.') })
+          } else {
+            fileList.addAll(wfList.sortedBy { it.size }.filter { !it.name.startsWith('.') })
+          }
+        }else{
+          if (sortByTime) {
+            fileList.addAll(wfList.sortedBy { it.lastModifiedTime })
+          } else {
+            fileList.addAll(wfList.sortedBy { it.size })
+          }
         }
       }
       isOkay = true
@@ -529,7 +537,7 @@ class FileColumn(val context: Context) {
       ) {
         Text(
           text = forceName
-            ?: if (settingStorage.get(settingStorage.showExtension) == false && !file.name.startsWith('.')) {
+            ?: if (settingStorage.get(settingStorage.hideExtension) == true && !file.name.startsWith('.')) {
               file.nameWithoutExt
             } else {
               file.name
diff --git a/app/src/main/java/com/example/myapplication/fileSystem/adapters/Document.kt b/app/src/main/java/com/example/myapplication/fileSystem/adapters/Document.kt
index d0b5fed..0fd231d 100644
--- a/app/src/main/java/com/example/myapplication/fileSystem/adapters/Document.kt
+++ b/app/src/main/java/com/example/myapplication/fileSystem/adapters/Document.kt
@@ -24,14 +24,14 @@ class DocumentModel(document: File) {
 class DocumentAdapter(context: Context, list: ArrayList<DocumentModel>) :
   ArrayAdapter<DocumentModel>(context, 0, list) {
   private val settingStorage = SettingStorage(context)
-  private val showExtension = settingStorage.get(settingStorage.showExtension)
+  private val hideExtension = settingStorage.get(settingStorage.hideExtension)
   override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
     val listView = convertView ?: LayoutInflater.from(context).inflate(
       R.layout.document_card_item, parent, false
     )
     val model = getItem(position) ?: throw RuntimeException()
     val card = listView.findViewById<TextView>(R.id.iconButton)
-    card.text = if (showExtension != false) {
+    card.text = if (hideExtension == false) {
       model.name
     } else {
       model.nameWithoutExt
diff --git a/app/src/main/java/com/example/myapplication/fileSystem/adapters/Image.kt b/app/src/main/java/com/example/myapplication/fileSystem/adapters/Image.kt
index aeb12bf..e9f8de7 100644
--- a/app/src/main/java/com/example/myapplication/fileSystem/adapters/Image.kt
+++ b/app/src/main/java/com/example/myapplication/fileSystem/adapters/Image.kt
@@ -32,14 +32,14 @@ class ImageModel(image: File) {
 class ImageAdapter(context: Context, list: ArrayList<ImageModel>) :
   ArrayAdapter<ImageModel>(context, 0, list) {
   private val settingStorage = SettingStorage(context)
-  private val showExtension = settingStorage.get(settingStorage.showExtension)
+  private val hideExtension = settingStorage.get(settingStorage.hideExtension)
   override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
     val listView = convertView ?: LayoutInflater.from(context).inflate(
       R.layout.picture_card_item, parent, false
     )
     val model = getItem(position) ?: throw RuntimeException()
     listView.findViewById<ImageView>(R.id.pictureCardImage).setImageBitmap(model.thumbnail)
-    listView.findViewById<TextView>(R.id.pictureCardText).text = if (showExtension != false) {
+    listView.findViewById<TextView>(R.id.pictureCardText).text = if (hideExtension == false) {
       model.name
     } else {
       model.nameWithoutExt
diff --git a/app/src/main/java/com/example/myapplication/fileSystem/adapters/Music.kt b/app/src/main/java/com/example/myapplication/fileSystem/adapters/Music.kt
index 5b5515f..7ca0b59 100644
--- a/app/src/main/java/com/example/myapplication/fileSystem/adapters/Music.kt
+++ b/app/src/main/java/com/example/myapplication/fileSystem/adapters/Music.kt
@@ -24,14 +24,14 @@ class MusicModel(music: File) {
 class MusicAdapter(context: Context, list: ArrayList<MusicModel>) :
   ArrayAdapter<MusicModel>(context, 0, list) {
   private val settingStorage = SettingStorage(context)
-  private val showExtension = settingStorage.get(settingStorage.showExtension)
+  private val hideExtension = settingStorage.get(settingStorage.hideExtension)
   override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
     val listView = convertView ?: LayoutInflater.from(context).inflate(
       R.layout.music_card_item, parent, false
     )
     val model = getItem(position) ?: throw RuntimeException()
     val card = listView.findViewById<TextView>(R.id.iconButton)
-    card.text = if (showExtension != false) {
+    card.text = if (hideExtension == false) {
       model.name
     } else {
       model.nameWithoutExt
diff --git a/app/src/main/java/com/example/myapplication/fileSystem/adapters/Video.kt b/app/src/main/java/com/example/myapplication/fileSystem/adapters/Video.kt
index 6fe664b..83ca763 100644
--- a/app/src/main/java/com/example/myapplication/fileSystem/adapters/Video.kt
+++ b/app/src/main/java/com/example/myapplication/fileSystem/adapters/Video.kt
@@ -35,14 +35,14 @@ class VideoModel(video: File) {
 class VideoAdapter(context: Context, list: ArrayList<VideoModel>) :
   ArrayAdapter<VideoModel>(context, 0, list) {
   private val settingStorage = SettingStorage(context)
-  private val showExtension = settingStorage.get(settingStorage.showExtension)
+  private val hideExtension = settingStorage.get(settingStorage.hideExtension)
   override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
     val listView = convertView ?: LayoutInflater.from(context).inflate(
       R.layout.picture_card_item, parent, false
     )
     val model = getItem(position) ?: throw RuntimeException()
     listView.findViewById<ImageView>(R.id.pictureCardImage).setImageBitmap(model.thumbnail)
-    listView.findViewById<TextView>(R.id.pictureCardText).text = if (showExtension != false) {
+    listView.findViewById<TextView>(R.id.pictureCardText).text = if (hideExtension == false) {
       model.name
     } else {
       model.nameWithoutExt
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 93df3ae..5b21fb0 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,93 +1,96 @@
 <resources>
-    <string name="app_name">文件管理器</string>
-    <string name="hello">文件管理器</string>
-    <string name="search">浏览</string>
-    <string name="edit">编辑</string>
-    <string name="picture">图片</string>
-    <string name="video">视频</string>
-    <string name="music">音乐</string>
-    <string name="document">文件</string>
-    <string name="app">其他</string>
-    <string name="location">位置</string>
-    <string name="store">内部存储</string>
-    <string name="delete">最近删除</string>
-    <string name="download">下载与接收</string>
-    <string name="source">来源</string>
-    <string name="internet">浏览器</string>
-    <string name="radio">录音机</string>
-    <string name="next">Next</string>
-    <string name="previous">Previous</string>
-    <string name="Delete">删除</string>
-    <string name="copy">复制</string>
-    <string name="cut">剪切</string>
-    <string name="paste">粘贴</string>
+  <string name="app_name">文件管理器</string>
+  <string name="hello">文件管理器</string>
+  <string name="search">浏览</string>
+  <string name="edit">编辑</string>
+  <string name="picture">图片</string>
+  <string name="video">视频</string>
+  <string name="music">音乐</string>
+  <string name="document">文件</string>
+  <string name="app">其他</string>
+  <string name="location">位置</string>
+  <string name="store">内部存储</string>
+  <string name="delete">最近删除</string>
+  <string name="download">下载与接收</string>
+  <string name="source">来源</string>
+  <string name="internet">浏览器</string>
+  <string name="radio">录音机</string>
+  <string name="next">Next</string>
+  <string name="previous">Previous</string>
+  <string name="Delete">删除</string>
+  <string name="copy">复制</string>
+  <string name="cut">剪切</string>
+  <string name="paste">粘贴</string>
 
-    <string name="title_activity_require_permission">RequirePermissionActivity</string>
+  <string name="title_activity_require_permission">RequirePermissionActivity</string>
 
-    <string name="require_permission_readwrite">需要读取/写入存储权限以继续</string>
-    <string name="require_manage_storage">需要管理存储权限以继续</string>
-    <string name="give_permission">授权</string>
+  <string name="require_permission_readwrite">需要读取/写入存储权限以继续</string>
+  <string name="require_manage_storage">需要管理存储权限以继续</string>
+  <string name="give_permission">授权</string>
 
-    <string name="used_storage_percentage">%d%%</string>
-    <string name="used_storage">已使用\n%s / %s</string>
+  <string name="used_storage_percentage">%d%%</string>
+  <string name="used_storage">已使用\n%s / %s</string>
 
-    <string name="loading">加载中</string>
+  <string name="loading">加载中</string>
 
-    <!-- Actions -->
-    <string name="select_action">选择操作</string>
-    <string name="action_copy">复制</string>
-    <string name="action_paste">粘贴</string>
-    <string name="action_delete">删除</string>
-    <string name="action_cut">剪切</string>
-    <string name="action_info">信息</string>
-    <string name="action_new_file">新建文件</string>
-    <string name="action_new_folder">新建文件夹</string>
-    <string name="action_cancel">取消</string>
+  <!-- Actions -->
+  <string name="select_action">选择操作</string>
+  <string name="action_copy">复制</string>
+  <string name="action_paste">粘贴</string>
+  <string name="action_delete">删除</string>
+  <string name="action_cut">剪切</string>
+  <string name="action_info">信息</string>
+  <string name="action_new_file">新建文件</string>
+  <string name="action_new_folder">新建文件夹</string>
+  <string name="action_cancel">取消</string>
 
-    <!-- Confirmations -->
-    <string name="confirm">确认</string>
-    <string name="okay">好的</string>
-    <string name="cancel">取消</string>
-    <string name="confirm_to_delete">确认删除</string>
-    <string name="confirm_to_delete_file">确认删除文件: %s</string>
+  <!-- Confirmations -->
+  <string name="confirm">确认</string>
+  <string name="okay">好的</string>
+  <string name="cancel">取消</string>
+  <string name="confirm_to_delete">确认删除</string>
+  <string name="confirm_to_delete_file">确认删除文件: %s</string>
 
-    <string name="file_info">文件信息</string>
-    <string name="file_info_text">
+  <string name="file_info">文件信息</string>
+  <string name="file_info_text">
 文件名：%s\n
 路径：%s\n
 大小：%s\n
 最后修改时间：%s
   </string>
 
-    <string name="advanced">查看什么</string>
-    <string name="settings">软件设置</string>
-    <string name="all_files">全部文件</string>
-    <string name="storage_info">内部存储信息</string>
+  <string name="advanced">查看什么</string>
+  <string name="settings">软件设置</string>
+  <string name="all_files">全部文件</string>
+  <string name="storage_info">内部存储信息</string>
 
-    <string name="camera">相机</string>
-    <string name="pictures">公用图片</string>
-    <string name="documents">公用文档</string>
-    <string name="prev_folder">上一级目录</string>
+  <string name="camera">相机</string>
+  <string name="pictures">公用图片</string>
+  <string name="documents">公用文档</string>
+  <string name="prev_folder">上一级目录</string>
 
-    <string name="input_name">请输入名称</string>
-    <string name="create_directory">将在 %s 创建文件夹</string>
-    <string name="create_file">将在 %s 创建文件</string>
+  <string name="input_name">请输入名称</string>
+  <string name="create_directory">将在 %s 创建文件夹</string>
+  <string name="create_file">将在 %s 创建文件</string>
+
+  <string name="error_nothing_to_paste">未找到可粘贴的内容</string>
+  <string name="error_need_input_name">请输入名称</string>
+  <string name="error_already_exist">已存在此文件（夹）</string>
+  <string name="title_activity_view_file">ViewFileActivity</string>
+  <string name="title_activity_search">SearchActivity</string>
+  <string name="search_result">搜索%s结果</string>
+  <string name="error_need_search_input">请输入要搜索的内容</string>
+  <string name="error_search_input_illegal">输入的搜索内容不合法</string>
+  <string name="search_file">搜索文件</string>
+  <string name="search_no_result">未找到任何结果</string>
+  <string name="search_some_result">找到%d个结果</string>
+  <string name="sort_by_size">已选择按大小排序</string>
+  <string name="sort_by_time">已选择按时间排序</string>
+  <string name="title_activity_setting">SettingActivity</string>
+  <string name="setting_hide_extension">隐藏扩展名</string>
+  <string name="setting_hide_extension_description">如果打开，则会显示文件名 abc.efg，否则显示文件全名 abc.efg.txt</string>
+  <string name="setting_hide_hidden_file">隐藏点文件</string>
+  <string name="setting_hide_hidden_file_description">隐藏所有以 . 开头的文件和文件夹\n. 开头的文件（或文件夹）通常表示隐藏文件（或文件夹）\n此选项只对查看全部文件功能有效</string>
 
-    <string name="error_nothing_to_paste">未找到可粘贴的内容</string>
-    <string name="error_need_input_name">请输入名称</string>
-    <string name="error_already_exist">已存在此文件（夹）</string>
-    <string name="title_activity_view_file">ViewFileActivity</string>
-    <string name="title_activity_search">SearchActivity</string>
-    <string name="search_result">搜索%s结果</string>
-    <string name="error_need_search_input">请输入要搜索的内容</string>
-    <string name="error_search_input_illegal">输入的搜索内容不合法</string>
-    <string name="search_file">搜索文件</string>
-    <string name="search_no_result">未找到任何结果</string>
-    <string name="search_some_result">找到%d个结果</string>
-    <string name="sort_by_size">已选择按大小排序</string>
-    <string name="sort_by_time">已选择按时间排序</string>
-    <string name="title_activity_setting">SettingActivity</string>
-    <string name="setting_show_extension">显示扩展名</string>
-    <string name="setting_show_extension_description">如果打开，则会显示 abc.txt，否则只显示 abc</string>
   <string name="about">关于</string>
 </resources>
\ No newline at end of file