diff --git a/src/main/java/net/micode/notes/ui/NotesListActivity.java b/src/main/java/net/micode/notes/ui/NotesListActivity.java
index 8e0ca96..34ea7a3 100644
--- a/src/main/java/net/micode/notes/ui/NotesListActivity.java
+++ b/src/main/java/net/micode/notes/ui/NotesListActivity.java
@@ -79,6 +79,8 @@ import java.io.InputStreamReader;
 import java.util.HashSet;
 
 public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener {
+    //首页背景变换
+    private int mode = -1;
     private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
 
     private static final int FOLDER_LIST_QUERY_TOKEN      = 1;
@@ -95,28 +97,38 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER
     };
 
-    // 声明一些私有成员变量。
-    private ListEditState mState; // 当前列表的编辑状态
-    private BackgroundQueryHandler mBackgroundQueryHandler; // 用于在后台执行查询的处理程序
-    private NotesListAdapter mNotesListAdapter; // 笔记列表的适配器
-    private ListView mNotesListView; // 显示笔记列表的视图
-    private Button mAddNewNote; // 添加新笔记的按钮
-    private boolean mDispatch; // 一个标志，可能用于控制事件分发
-    private int mOriginY; // 原始Y坐标，可能用于触摸事件处理
-    private int mDispatchY; // 分发的Y坐标，也可能用于触摸事件处理
-    private TextView mTitleBar; // 标题栏文本视图
-    private long mCurrentFolderId; // 当前文件夹的ID
-    private ContentResolver mContentResolver; // 内容解析器，用于访问应用的数据
-    private ModeCallback mModeCallBack; // 模式回调接口的实现，可能用于在不同的操作模式之间切换
+    private ListEditState mState;
+
+    private BackgroundQueryHandler mBackgroundQueryHandler;
+
+    private NotesListAdapter mNotesListAdapter;
+
+    private ListView mNotesListView;
+
+    private Button mAddNewNote;
+
+    private boolean mDispatch;
+
+    private int mOriginY;
+
+    private int mDispatchY;
+
+    private TextView mTitleBar;
+
+    private long mCurrentFolderId;
+
+    private ContentResolver mContentResolver;
+
+    private ModeCallback mModeCallBack;
 
     private static final String TAG = "NotesListActivity";
 
     public static final int NOTES_LISTVIEW_SCROLL_RATE = 30;
-    //正在关注的笔记数据对象
+
     private NoteItemData mFocusNoteDataItem;
 
     private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?";
-    //拼接访问串
+
     private static final String ROOT_FOLDER_SELECTION = "(" + NoteColumns.TYPE + "<>"
             + Notes.TYPE_SYSTEM + " AND " + NoteColumns.PARENT_ID + "=?)" + " OR ("
             + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER + " AND "
@@ -124,22 +136,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
 
     private final static int REQUEST_CODE_OPEN_NODE = 102;
     private final static int REQUEST_CODE_NEW_NODE  = 103;
-    //表示是否在私密模式
-    public static int secret_mode = 0;
-
-    /**
-     * @classname: NotesListActivity
-     * @methodname onCreate
-     * @description:完成活动的初始化
-     * @date: 2024/1/4 11:47
-     * @author: Xia Yanbo
-     * @param:savedInstanceState保存的状态
-    */
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        //根据布局文件呈现菜单视图
         setContentView(R.layout.note_list);
+        getWindow().setBackgroundDrawableResource(R.drawable.decade);//将decade作为初始背景
         initResources();
 
         /**
@@ -147,25 +149,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
          */
         setAppInfoFromRawRes();
     }
-    /**
-     * @classname: NotesListActivity
-     * @methodname onActivityResult
-     * @description:当从活动中得到返回调用，处理返回的结果
-     * @date: 2024/1/4 11:49
-     * @author: Xia Yanbo
-     * @param:requestCode请求码
-     * @param:resultCode结果码
-     * @param:data 意图的数据
-    */
+
     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-        // 根据请求的代码类型进行相应的处理
-        if (resultCode == RESULT_OK // 如果返回的结果码是RESULT_OK，表示操作成功
-                && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) { // 并且请求码是打开节点或新建节点
-            // 清空笔记列表的适配器游标（可能是在执行打开或新建节点操作后，刷新或重置列表）
+        if (resultCode == RESULT_OK
+                && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) {
             mNotesListAdapter.changeCursor(null);
-        } else { // 其他情况
-            // 调用父类的onActivityResult方法，将结果传递给上层处理。
+        } else {
             super.onActivityResult(requestCode, resultCode, data);
         }
     }
@@ -425,35 +415,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     private void startAsyncNotesListQuery() {
         String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
                 : NORMAL_SELECTION;
-        if(secret_mode == 0) {
-            mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
-                    Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[]{
-                            String.valueOf(mCurrentFolderId)
-                    }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
-        }
-        else{
-            String str1 = "520";
-            String [] PROJECTION = new String [] {  //定义一个新的PROJECTION数组，只换掉SNIPPET
-                    NoteColumns.ID,
-                    NoteColumns.ALERTED_DATE,
-                    NoteColumns.BG_COLOR_ID,
-                    NoteColumns.CREATED_DATE,
-                    NoteColumns.HAS_ATTACHMENT,
-                    NoteColumns.MODIFIED_DATE,
-                    NoteColumns.NOTES_COUNT,
-                    NoteColumns.PARENT_ID,
-//                    NoteColumns.SNIPPET,
-                    str1,
-                    NoteColumns.TYPE,
-                    NoteColumns.WIDGET_ID,
-                    NoteColumns.WIDGET_TYPE,
-            };
-            mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
-                    Notes.CONTENT_NOTE_URI, PROJECTION, selection, new String[]{
-                            String.valueOf(mCurrentFolderId)
-                    }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
-
-        }
+        mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
+                Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] {
+                    String.valueOf(mCurrentFolderId)
+                }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
     }
 
     private final class BackgroundQueryHandler extends AsyncQueryHandler {
@@ -810,16 +775,28 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         } else {
             Log.e(TAG, "Wrong state:" + mState);
         }
-        if(secret_mode == 1)
-            menu.findItem(R.id.menu_secret).setVisible(false);
-        else
-            menu.findItem(R.id.menu_quit_secret).setVisible(false);
+
+        if(mode==-1){//decade
+            menu.findItem(R.id.menu_decade).setVisible(false);
+        }
+        else if(mode==1){//zio
+            menu.findItem(R.id.menu_zio).setVisible(false);
+        }
+
         return true;
     }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
-            if(item.getItemId()==R.id.menu_new_folder){
+            if(item.getItemId()==R.id.menu_decade){
+                mode = -1;
+                getWindow().setBackgroundDrawableResource(R.drawable.decade);
+            }
+            else if(item.getItemId()==R.id.menu_zio){
+                mode = 1;
+                getWindow().setBackgroundDrawableResource(R.drawable.zio);
+            }
+            else if(item.getItemId()==R.id.menu_new_folder){
                 showCreateOrModifyFolderDialog(true);
             }
             else if(item.getItemId()==R.id.menu_export_text ){
@@ -846,50 +823,6 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
             else if(item.getItemId()==R.id.menu_search) {
                 onSearchRequested();
             }
-            else if(item.getItemId()==R.id.menu_secret)
-            {//进入私密模式
-            secret_mode = 1;
-            AlertDialog.Builder dialog = new AlertDialog.Builder(NotesListActivity.this);
-            dialog.setTitle("重要提醒");
-            dialog.setMessage("您确认进入私密模式吗？");
-            dialog.setCancelable(false);
-            dialog.setPositiveButton("确认", new DialogInterface.OnClickListener() {
-                @Override
-                public void onClick(DialogInterface dialog, int which) {
-                    startAsyncNotesListQuery();
-                    Toast.makeText(NotesListActivity.this,"您已进入私密模式",Toast.LENGTH_SHORT).show();
-                }
-            });
-            dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
-                @Override
-                public void onClick(DialogInterface dialog, int which){}
-            });
-            dialog.show();
-            startAsyncNotesListQuery();
-            Toast.makeText(this,"您已进入私密模式",Toast.LENGTH_SHORT).show();
-            }
-            else if(item.getItemId()==R.id.menu_quit_secret)
-            {  //退出私密模式
-                secret_mode = 0;
-                AlertDialog.Builder dialog = new AlertDialog.Builder(NotesListActivity.this);
-                dialog.setTitle("重要提醒");
-                dialog.setMessage("您确认退出私密模式吗？");
-                dialog.setCancelable(false);
-                dialog.setPositiveButton("确认", new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-                        startAsyncNotesListQuery();
-                        Toast.makeText(NotesListActivity.this,"您已退出私密模式",Toast.LENGTH_SHORT).show();
-                    }
-                });
-                dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which){}
-                });
-                dialog.show();
-
-            }
-
 
         return true;
     }
@@ -1027,16 +960,4 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         }
         return false;
     }
-
-    public static void setSecretMode() {
-        if(secret_mode==0)
-        {
-            secret_mode=1;
-        }
-        else{
-            secret_mode=0;
-        }
-    }
-
 }
-
diff --git a/src/main/res/layout/note_list.xml b/src/main/res/layout/note_list.xml
index 6b25d38..50d3a00 100644
--- a/src/main/res/layout/note_list.xml
+++ b/src/main/res/layout/note_list.xml
@@ -18,8 +18,8 @@
 <FrameLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
-    android:layout_height="fill_parent"
-    android:background="@drawable/list_background">
+    android:layout_height="fill_parent">
+    <!--android:background="@drawable/list_background"-->
 
     <LinearLayout
         android:layout_width="fill_parent"
diff --git a/src/main/res/menu/note_list.xml b/src/main/res/menu/note_list.xml
index 9903e2e..abe31d5 100644
--- a/src/main/res/menu/note_list.xml
+++ b/src/main/res/menu/note_list.xml
@@ -36,12 +36,12 @@
     <item
         android:id="@+id/menu_search"
         android:title="@string/menu_search"/>
-    <item
-        android:id="@+id/menu_secret"
-        android:title="@string/menu_secret"/>
 
     <item
-        android:id="@+id/menu_quit_secret"
-        android:title="@string/menu_quit_secret"/>
+        android:id="@+id/menu_decade"
+        android:title="@string/menu_decade"/>
 
+    <item
+        android:id="@+id/menu_zio"
+        android:title="@string/menu_zio"/>
 </menu>
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index c54b8ad..89b1e42 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -39,6 +39,11 @@
     <string name="file_path">/MIUI/notes/</string>
     <string name="file_name_txt_format">notes_%s.txt</string>
     <!-- notes list string -->
+
+    <!--首页背景切换-->
+    <string name="menu_decade">Background: decade</string>
+    <string name="menu_zio">Background: zio</string>
+
     <string name="format_folder_files_count">(%d)</string>
     <string name="menu_create_folder">New Folder</string>
     <string name="menu_export_text">Export text</string>
@@ -75,8 +80,6 @@
     <string name="alert_message_delete_notes">Confirm to delete the selected %d notes?</string>
     <string name="alert_message_delete_note">Confirm to delete this note?</string>
     <string name="format_move_notes_to_folder">Have moved selected %1$d notes to %2$s folder</string>
-    <string name="menu_secret">secret model</string>
-    <string name="menu_quit_secret">quit secret model</string>
     <!-- Error information -->
     <string name="error_sdcard_unmounted">SD card busy, not available now</string>
     <string name="error_sdcard_export">Export failed, please check SD card</string>