diff --git a/src/main/java/net/micode/notes/gtask/data/SqlData.java b/src/main/java/net/micode/notes/gtask/data/SqlData.java
index 7fdfd17..2bf0273 100644
--- a/src/main/java/net/micode/notes/gtask/data/SqlData.java
+++ b/src/main/java/net/micode/notes/gtask/data/SqlData.java
@@ -71,9 +71,9 @@ public class SqlData {
 
     private ContentValues mDiffDataValues;
 
-    public SqlData(Context context) {//初始化对象，用于存储数据
+    public SqlData(Context context) {
         mContentResolver = context.getContentResolver();
-        mIsCreate = true;//一类型的变量为true
+        mIsCreate = true;
         mDataId = INVALID_ID;
         mDataMimeType = DataConstants.NOTE;
         mDataContent = "";
@@ -82,14 +82,14 @@ public class SqlData {
         mDiffDataValues = new ContentValues();
     }
 
-    public SqlData(Context context, Cursor c) {//同样是存储数据，另外定义支持冲cursor读入
+    public SqlData(Context context, Cursor c) {
         mContentResolver = context.getContentResolver();
-        mIsCreate = false;//二类型的变量为false
+        mIsCreate = false;
         loadFromCursor(c);
         mDiffDataValues = new ContentValues();
     }
 
-    private void loadFromCursor(Cursor c) {//上面用到的从cursor读取的函数，从存储的各个列获取数据
+    private void loadFromCursor(Cursor c) {
         mDataId = c.getLong(DATA_ID_COLUMN);
         mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
         mDataContent = c.getString(DATA_CONTENT_COLUMN);
@@ -97,9 +97,9 @@ public class SqlData {
         mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
     }
 
-    public void setContent(@androidx.annotation.NonNull JSONObject js) throws JSONException {//获取json类型的参数，并且根据它更新自定义的数据单元中的值
-        long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;//如果有id直接赋值，没有则需要在获取
-        if (mIsCreate || mDataId != dataId) {//初始未设置的数据单元通过它设置内容，通过cursor产生的数据元可通过它完成更新
+    public void setContent(JSONObject js) throws JSONException {
+        long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;
+        if (mIsCreate || mDataId != dataId) {
             mDiffDataValues.put(DataColumns.ID, dataId);
         }
         mDataId = dataId;
@@ -131,7 +131,7 @@ public class SqlData {
     }
 
     public JSONObject getContent() throws JSONException {
-        if (mIsCreate) {//同样的只有通过cursor产生的数据单元可通过这个函数获取数据
+        if (mIsCreate) {
             Log.e(TAG, "it seems that we haven't created this in database yet");
             return null;
         }
@@ -144,7 +144,7 @@ public class SqlData {
         return js;
     }
 
-    public void commit(long noteId, boolean validateVersion, long version) {//提交数据，并且打上类似于标签的版本号以及验证值
+    public void commit(long noteId, boolean validateVersion, long version) {
 
         if (mIsCreate) {
             if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
@@ -162,12 +162,12 @@ public class SqlData {
         } else {
             if (mDiffDataValues.size() > 0) {
                 int result = 0;
-                if (!validateVersion) { // 不验证版本的情况下，直接使用ContentResolver更新指定ID的数据
+                if (!validateVersion) {
                     result = mContentResolver.update(ContentUris.withAppendedId(
                             Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
-                } else { // 需要验证版本的情况下，使用ContentResolver进行条件更新操作
+                } else {
                     result = mContentResolver.update(ContentUris.withAppendedId(
-                            Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
+                                    Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
                             " ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
                                     + " WHERE " + NoteColumns.VERSION + "=?)", new String[] {
                                     String.valueOf(noteId), String.valueOf(version)
diff --git a/src/main/java/net/micode/notes/gtask/data/SqlNote.java b/src/main/java/net/micode/notes/gtask/data/SqlNote.java
index 48891a6..79a4095 100644
--- a/src/main/java/net/micode/notes/gtask/data/SqlNote.java
+++ b/src/main/java/net/micode/notes/gtask/data/SqlNote.java
@@ -122,7 +122,7 @@ public class SqlNote {
 
     private ArrayList<SqlData> mDataList;
 
-    public SqlNote(Context context) {//定义数据单元存储数据
+    public SqlNote(Context context) {
         mContext = context;
         mContentResolver = context.getContentResolver();
         mIsCreate = true;
@@ -135,7 +135,7 @@ public class SqlNote {
         mParentId = 0;
         mSnippet = "";
         mType = Notes.TYPE_NOTE;
-        mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;//直接从设置的属性中获取值
+        mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
         mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
         mOriginParent = 0;
         mVersion = 0;
@@ -147,14 +147,14 @@ public class SqlNote {
         mContext = context;
         mContentResolver = context.getContentResolver();
         mIsCreate = false;
-        loadFromCursor(c);//从cursor中直接获取变量值
+        loadFromCursor(c);
         mDataList = new ArrayList<SqlData>();
         if (mType == Notes.TYPE_NOTE)
             loadDataContent();
         mDiffNoteValues = new ContentValues();
     }
 
-    public SqlNote(Context context, long id) {//根据id初始化数据单元
+    public SqlNote(Context context, long id) {
         mContext = context;
         mContentResolver = context.getContentResolver();
         mIsCreate = false;
@@ -175,7 +175,7 @@ public class SqlNote {
                     }, null);
             if (c != null) {
                 c.moveToNext();
-                loadFromCursor(c);//通过调用减少重复代码编写
+                loadFromCursor(c);
             } else {
                 Log.w(TAG, "loadFromCursor: cursor = null");
             }
@@ -185,7 +185,7 @@ public class SqlNote {
         }
     }
 
-    private void loadFromCursor(Cursor c) {//直接使用get获得变量值
+    private void loadFromCursor(Cursor c) {
         mId = c.getLong(ID_COLUMN);
         mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
         mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
@@ -200,7 +200,7 @@ public class SqlNote {
         mVersion = c.getLong(VERSION_COLUMN);
     }
 
-    private void loadDataContent() {//这个函数判别查询的数据是否存在，并且读取到数据列表中存储
+    private void loadDataContent() {
         Cursor c = null;
         mDataList.clear();
         try {
@@ -210,12 +210,12 @@ public class SqlNote {
                     }, null);
             if (c != null) {
                 if (c.getCount() == 0) {
-                    Log.w(TAG, "it seems that the note has not data");//遇到文件为空抛出对应的异常
+                    Log.w(TAG, "it seems that the note has not data");
                     return;
                 }
                 while (c.moveToNext()) {
                     SqlData data = new SqlData(mContext, c);
-                    mDataList.add(data);//向Datalist中加入读取到的数据
+                    mDataList.add(data);
                 }
             } else {
                 Log.w(TAG, "loadDataContent: cursor = null");
@@ -226,8 +226,7 @@ public class SqlNote {
         }
     }
 
-    public boolean setContent(JSONObject js) {//设置数据单元中变量的值
-        //如果所需的值存在，直接赋值使用，否则再先进行一步读取
+    public boolean setContent(JSONObject js) {
         try {
             JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
             if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
@@ -360,7 +359,7 @@ public class SqlNote {
         return true;
     }
 
-    public JSONObject getContent() {//直接读取的方式将所需的数据读到对应变量
+    public JSONObject getContent() {
         try {
             JSONObject js = new JSONObject();
 
@@ -413,7 +412,6 @@ public class SqlNote {
         mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
     }
 
-    //定义一些简单的获取取值的方法
     public void setGtaskId(String gid) {
         mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
     }
@@ -442,7 +440,7 @@ public class SqlNote {
         return mType == Notes.TYPE_NOTE;
     }
 
-    public void commit(boolean validateVersion) {//将数据做一定修改提交
+    public void commit(boolean validateVersion) {
         if (mIsCreate) {
             if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
                 mDiffNoteValues.remove(NoteColumns.ID);
diff --git a/src/main/java/net/micode/notes/gtask/data/Task.java b/src/main/java/net/micode/notes/gtask/data/Task.java
index 4d68293..6a19454 100644
--- a/src/main/java/net/micode/notes/gtask/data/Task.java
+++ b/src/main/java/net/micode/notes/gtask/data/Task.java
@@ -32,7 +32,7 @@ import org.json.JSONException;
 import org.json.JSONObject;
 
 
-public class Task extends Node {//继承Node类的属性
+public class Task extends Node {
     private static final String TAG = Task.class.getSimpleName();
 
     private boolean mCompleted;
@@ -54,7 +54,7 @@ public class Task extends Node {//继承Node类的属性
         mMetaInfo = null;
     }
 
-    public JSONObject getCreateAction(int actionId) {//创建一个初始的任务对象，并对它赋初值
+    public JSONObject getCreateAction(int actionId) {
         JSONObject js = new JSONObject();
 
         try {
@@ -103,7 +103,7 @@ public class Task extends Node {//继承Node类的属性
         return js;
     }
 
-    public JSONObject getUpdateAction(int actionId) {//更新任务
+    public JSONObject getUpdateAction(int actionId) {
         JSONObject js = new JSONObject();
 
         try {
@@ -120,7 +120,7 @@ public class Task extends Node {//继承Node类的属性
             // entity_delta
             JSONObject entity = new JSONObject();
             entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
-            if (getNotes() != null) {//如果笔记不为空，更新笔记
+            if (getNotes() != null) {
                 entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
             }
             entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted());
@@ -135,11 +135,11 @@ public class Task extends Node {//继承Node类的属性
         return js;
     }
 
-    public void setContentByRemoteJSON(JSONObject js) {//通过远端的json设置内容的值
+    public void setContentByRemoteJSON(JSONObject js) {
         if (js != null) {
             try {
                 // id
-                if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {//如果值已经被json对象所具备，则直接进行设置
+                if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
                     setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
                 }
 
@@ -175,7 +175,7 @@ public class Task extends Node {//继承Node类的属性
         }
     }
 
-    public void setContentByLocalJSON(JSONObject js) {//通过本地的json文件来设置内容
+    public void setContentByLocalJSON(JSONObject js) {
         if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)
                 || !js.has(GTaskStringUtils.META_HEAD_DATA)) {
             Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
@@ -204,7 +204,7 @@ public class Task extends Node {//继承Node类的属性
         }
     }
 
-    public JSONObject getLocalJSONFromContent() {//通过本地的内容，生成json文件
+    public JSONObject getLocalJSONFromContent() {
         String name = getName();
         try {
             if (mMetaInfo == null) {
@@ -216,7 +216,7 @@ public class Task extends Node {//继承Node类的属性
 
                 JSONObject js = new JSONObject();
                 JSONObject note = new JSONObject();
-                JSONArray dataArray = new JSONArray();//声明所有所要用到的变量
+                JSONArray dataArray = new JSONArray();
                 JSONObject data = new JSONObject();
                 data.put(DataColumns.CONTENT, name);
                 dataArray.put(data);
@@ -227,7 +227,7 @@ public class Task extends Node {//继承Node类的属性
             } else {
                 // synced task
                 JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
-                JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA);//提取出所有的信息
+                JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
 
                 for (int i = 0; i < dataArray.length(); i++) {
                     JSONObject data = dataArray.getJSONObject(i);
@@ -258,11 +258,11 @@ public class Task extends Node {//继承Node类的属性
         }
     }
 
-    public int getSyncAction(Cursor c) {//同步缓存
+    public int getSyncAction(Cursor c) {
         try {
             JSONObject noteInfo = null;
             if (mMetaInfo != null && mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) {
-                noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);//更新到最新的笔记信息
+                noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
             }
 
             if (noteInfo == null) {
@@ -311,14 +311,14 @@ public class Task extends Node {//继承Node类的属性
         return SYNC_ACTION_ERROR;
     }
 
-    public boolean isWorthSaving() {//只要有信息就认为是值得保存的，返回true
+    public boolean isWorthSaving() {
         return mMetaInfo != null || (getName() != null && getName().trim().length() > 0)
                 || (getNotes() != null && getNotes().trim().length() > 0);
     }
 
     public void setCompleted(boolean completed) {
         this.mCompleted = completed;
-    }//进行前面使用过的调用函数返回值的对应
+    }
 
     public void setNotes(String notes) {
         this.mNotes = notes;
diff --git a/src/main/java/net/micode/notes/gtask/data/TaskList.java b/src/main/java/net/micode/notes/gtask/data/TaskList.java
index 95d6bf5..4ea21c5 100644
--- a/src/main/java/net/micode/notes/gtask/data/TaskList.java
+++ b/src/main/java/net/micode/notes/gtask/data/TaskList.java
@@ -30,17 +30,17 @@ import org.json.JSONObject;
 import java.util.ArrayList;
 
 
-public class TaskList extends Node {//同Task一样，继承了Node
+public class TaskList extends Node {
     private static final String TAG = TaskList.class.getSimpleName();
 
     private int mIndex;
 
-    private ArrayList<Task> mChildren;//内部含有一个Task的列，是任务的序列
+    private ArrayList<Task> mChildren;
 
     public TaskList() {
         super();
         mChildren = new ArrayList<Task>();
-        mIndex = 1;//初始化
+        mIndex = 1;
     }
 
     public JSONObject getCreateAction(int actionId) {
@@ -74,7 +74,7 @@ public class TaskList extends Node {//同Task一样，继承了Node
         return js;
     }
 
-    public JSONObject getUpdateAction(int actionId) {//更新行动与Task中定义的基本一样
+    public JSONObject getUpdateAction(int actionId) {
         JSONObject js = new JSONObject();
 
         try {
@@ -104,7 +104,7 @@ public class TaskList extends Node {//同Task一样，继承了Node
     }
 
     public void setContentByRemoteJSON(JSONObject js) {
-        if (js != null) {//类似的通过远端更新内容
+        if (js != null) {
             try {
                 // id
                 if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
@@ -129,7 +129,7 @@ public class TaskList extends Node {//同Task一样，继承了Node
         }
     }
 
-    public void setContentByLocalJSON(JSONObject js) {//通过本地文件更新内容
+    public void setContentByLocalJSON(JSONObject js) {
         if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) {
             Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
         }
@@ -215,26 +215,26 @@ public class TaskList extends Node {//同Task一样，继承了Node
 
         return SYNC_ACTION_ERROR;
     }
-//以上都与task定义类似
+
     public int getChildTaskCount() {
         return mChildren.size();
     }
 
     public boolean addChildTask(Task task) {
         boolean ret = false;
-        if (task != null && !mChildren.contains(task)) {//任务不为空，并且还不在列表中，则将其加入
+        if (task != null && !mChildren.contains(task)) {
             ret = mChildren.add(task);
-            if (ret) {//成功加入以后继续设置关系
+            if (ret) {
                 // need to set prior sibling and parent
                 task.setPriorSibling(mChildren.isEmpty() ? null : mChildren
                         .get(mChildren.size() - 1));
-                task.setParent(this);//设置任务的父子关系
+                task.setParent(this);
             }
         }
         return ret;
     }
 
-    public boolean addChildTask(Task task, int index) {//更进一步的实现在指定索引位置插入任务
+    public boolean addChildTask(Task task, int index) {
         if (index < 0 || index > mChildren.size()) {
             Log.e(TAG, "add child task: invalid index");
             return false;
@@ -260,9 +260,9 @@ public class TaskList extends Node {//同Task一样，继承了Node
         return true;
     }
 
-    public boolean removeChildTask(Task task) {//移除子任务
+    public boolean removeChildTask(Task task) {
         boolean ret = false;
-        int index = mChildren.indexOf(task);//查找其索引
+        int index = mChildren.indexOf(task);
         if (index != -1) {
             ret = mChildren.remove(task);
 
@@ -281,7 +281,7 @@ public class TaskList extends Node {//同Task一样，继承了Node
         return ret;
     }
 
-    public boolean moveChildTask(Task task, int index) {//定向移除对应位置的任务
+    public boolean moveChildTask(Task task, int index) {
 
         if (index < 0 || index >= mChildren.size()) {
             Log.e(TAG, "move child task: invalid index");
@@ -299,7 +299,7 @@ public class TaskList extends Node {//同Task一样，继承了Node
         return (removeChildTask(task) && addChildTask(task, index));
     }
 
-    public Task findChildTaskByGid(String gid) {//通过Gid查找任务
+    public Task findChildTaskByGid(String gid) {
         for (int i = 0; i < mChildren.size(); i++) {
             Task t = mChildren.get(i);
             if (t.getGid().equals(gid)) {
@@ -309,7 +309,7 @@ public class TaskList extends Node {//同Task一样，继承了Node
         return null;
     }
 
-    public int getChildTaskIndex(Task task) {//获取任务对应的索引
+    public int getChildTaskIndex(Task task) {
         return mChildren.indexOf(task);
     }
 
@@ -323,7 +323,7 @@ public class TaskList extends Node {//同Task一样，继承了Node
 
     public Task getChilTaskByGid(String gid) {
         for (Task task : mChildren) {
-            if (task.getGid().equals(gid))//找到一个gid相符的即为所要的任务
+            if (task.getGid().equals(gid))
                 return task;
         }
         return null;
diff --git a/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java b/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java
index 1909174..937be4b 100644
--- a/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java
+++ b/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java
@@ -39,4 +39,3 @@ public class ActionFailureException extends RuntimeException {
         super(paramString, paramThrowable);
     }
 }
-
diff --git a/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java b/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java
index 331588d..0e30963 100644
--- a/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java
+++ b/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java
@@ -42,3 +42,4 @@ public class NetworkFailureException extends Exception {
         super(paramString, paramThrowable);
     }
 }
+
diff --git a/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java b/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java
index 7370d57..85723be 100644
--- a/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java
+++ b/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java
@@ -14,200 +14,145 @@
  * limitations under the License.
  */
 
- package net.micode.notes.ui;
-
- import android.app.Activity;
- import android.app.AlertDialog;
- import android.content.Context;
- import android.content.DialogInterface;
- import android.content.DialogInterface.OnClickListener;
- import android.content.DialogInterface.OnDismissListener;
- import android.content.Intent;
- import android.media.AudioManager;
- import android.media.MediaPlayer;
- import android.media.RingtoneManager;
- import android.net.Uri;
- import android.os.Bundle;
- import android.os.PowerManager;
- import android.provider.Settings;
- import android.view.Window;
- import android.view.WindowManager;
- 
- import net.micode.notes.R;
- import net.micode.notes.data.Notes;
- import net.micode.notes.tool.DataUtils;
- 
- import java.io.IOException;
- 
- /**
-  * @classname: AlarmAlertActivity
-  * @description:设置闹钟提示
-  * @date: 2023/12/28 11:18
-  * @author: wangrunze
- */
- public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
-     private long mNoteId;//文本在数据库存储中的ID号
-     private String mSnippet;//闹钟提示时出现的文本片段
-     private static final int SNIPPET_PREW_MAX_LEN = 60;
-     MediaPlayer mPlayer;
-     //Bundle类型的数据与Map类型的数据相似，都是以key-value的形式存储数据的
-     //onsaveInstanceState方法是用来保存Activity的状态的,能从onCreate的参数savedInsanceState中获得状态数据
- 
-     /**
-      * @classname: AlarmAlertActivity
-      * @methodname onCreate
-      * @description:创建界面并进行初始化操作
-      * @date: 2023/12/28 11:27
-      * @author: wangrunze
-      * @param: Bundle savedInstanceState
-     */
-     @Override
-     protected void onCreate(Bundle savedInstanceState) {
-         super.onCreate(savedInstanceState);
-         requestWindowFeature(Window.FEATURE_NO_TITLE);//界面显示——无标题
- 
-         final Window win = getWindow();
-         win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
- 
-         if (!isScreenOn()) {
-             win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON//保持窗体点亮
-                     | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON//将窗体点亮
-                     | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON//允许窗体点亮时锁屏
-                     | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);//在手机锁屏后如果到了闹钟提示时间，点亮屏幕
-         }
- 
-         Intent intent = getIntent();
- 
-         try {
-             mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
-             mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);//根据ID从数据库中获取标签的内容
-             mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
-                     SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)//判断标签片段是否达到符合长度
-                     : mSnippet;
-         } catch (IllegalArgumentException e) {
-             e.printStackTrace();
-             return;
-         }
- 
-         mPlayer = new MediaPlayer();
-         if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
-             showActionDialog();//弹出对话框
-             playAlarmSound();//闹钟提示音激发
-         } else {
-             finish();
-         }
-     }
- 
-     /**
-      * @classname: AlarmAlertActivity
-      * @methodname isScreenOn
-      * @description:判断屏幕是否锁屏，调用系统函数判断，最后返回值是布尔类型
-      * @date: 2023/12/28 11:28
-      * @author: wangrunze
-      * @return: pm.isScreenOn()
-     */
-     private boolean isScreenOn() {
-         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
-         return pm.isScreenOn();
-     }
- 
-     /**
-      * @classname: AlarmAlertActivity
-      * @methodname playAlarmSound
-      * @description:闹钟提示音启动激发
-      * @date: 2023/12/28 11:29
-      * @author: wangrunze
-     */
- 
-     private void playAlarmSound() {
-         Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
- 
-         int silentModeStreams = Settings.System.getInt(getContentResolver(),
-                 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); //调用系统的铃声管理URI，得到闹钟提示音
- 
-         if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
-             mPlayer.setAudioStreamType(silentModeStreams);
-         } else {
-             mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
-         }
-         try {
-             mPlayer.setDataSource(this, url);//无返回值，设置多媒体数据来源
-             mPlayer.prepare();//准备同步
-             mPlayer.setLooping(true);//设置是否循环播放
-             mPlayer.start();//开始播放
-         } catch (IllegalArgumentException e) {
-             // TODO Auto-generated catch block
-             e.printStackTrace();//抛出异常， 还将显示出更深的调用信息
-         } catch (SecurityException e) {
-             // TODO Auto-generated catch block
-             e.printStackTrace();
-         } catch (IllegalStateException e) {
-             // TODO Auto-generated catch block
-             e.printStackTrace();
-         } catch (IOException e) {
-             // TODO Auto-generated catch block
-             e.printStackTrace();
-         }
-     }
- 
-     /**
-      * @classname: AlarmAlertActivity
-      * @methodname showActionDialog
-      * @description:新建对话框
-      * @date: 2023/12/28 11:30
-      * @author: wangrunze
-     */
- 
-     private void showActionDialog() {
-         AlertDialog.Builder dialog = new AlertDialog.Builder(this);//用到AlertDialog.Builder中的create()新建了一个AlertDialog
-         dialog.setTitle(R.string.app_name);//为对话框设置标题
-         dialog.setMessage(mSnippet);//为对话框设置内容
-         dialog.setPositiveButton(R.string.notealert_ok, this);//给对话框添加"Yes"按钮
-         if (isScreenOn()) {
-             dialog.setNegativeButton(R.string.notealert_enter, this);//给对话框添加"no"按钮
-         }
-         dialog.show().setOnDismissListener(this);
-     }
- 
-     //DialogInterface dialog为对话框，which为选择按钮,功能为选择各种操作
-     public void onClick(DialogInterface dialog, int which) {
-         switch (which) {
-             case DialogInterface.BUTTON_NEGATIVE://这是取消操作
-                 Intent intent = new Intent(this, NoteEditActivity.class);//实现两个类间的数据传输
-                 intent.setAction(Intent.ACTION_VIEW);//设置动作属性
-                 intent.putExtra(Intent.EXTRA_UID, mNoteId);
-                 startActivity(intent);
-                 break;
-             default:
-                 break;
-         }
-     }
- 
-     /**
-      * @classname: AlarmAlertActivity
-      * @methodname onDismiss
-      * @description:停止闹钟声音
-      * @date: 2023/12/28 11:30
-      * @author: wangrunze
-      * @param:DialogInterface dialog
-     */
-     public void onDismiss(DialogInterface dialog) {
-         stopAlarmSound();
-         finish();
-     }
-     /**
-      * @classname: AlarmAlertActivity
-      * @methodname: stopAlarmSound
-      * @description:
-      * @date: 2023/12/28 11:31
-      * @author: wangrunze
-     */
-     private void stopAlarmSound() {
-         if (mPlayer != null) {
-             mPlayer.stop();
-             mPlayer.release();
-             mPlayer = null;
-         }
-     }
- }
- 
\ No newline at end of file
+package net.micode.notes.ui;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.content.DialogInterface.OnDismissListener;
+import android.content.Intent;
+import android.media.AudioManager;
+import android.media.MediaPlayer;
+import android.media.RingtoneManager;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.PowerManager;
+import android.provider.Settings;
+import android.view.Window;
+import android.view.WindowManager;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.DataUtils;
+
+import java.io.IOException;
+
+
+public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
+    private long mNoteId;
+    private String mSnippet;
+    private static final int SNIPPET_PREW_MAX_LEN = 60;
+    MediaPlayer mPlayer;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        requestWindowFeature(Window.FEATURE_NO_TITLE);
+
+        final Window win = getWindow();
+        win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
+
+        if (!isScreenOn()) {
+            win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
+                    | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
+                    | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
+                    | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
+        }
+
+        Intent intent = getIntent();
+
+        try {
+            mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
+            mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
+            mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
+                    SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
+                    : mSnippet;
+        } catch (IllegalArgumentException e) {
+            e.printStackTrace();
+            return;
+        }
+
+        mPlayer = new MediaPlayer();
+        if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
+            showActionDialog();
+            playAlarmSound();
+        } else {
+            finish();
+        }
+    }
+
+    private boolean isScreenOn() {
+        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
+        return pm.isScreenOn();
+    }
+
+    private void playAlarmSound() {
+        Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
+
+        int silentModeStreams = Settings.System.getInt(getContentResolver(),
+                Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
+
+        if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
+            mPlayer.setAudioStreamType(silentModeStreams);
+        } else {
+            mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
+        }
+        try {
+            mPlayer.setDataSource(this, url);
+            mPlayer.prepare();
+            mPlayer.setLooping(true);
+            mPlayer.start();
+        } catch (IllegalArgumentException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        } catch (SecurityException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        } catch (IllegalStateException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        } catch (IOException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
+    }
+
+    private void showActionDialog() {
+        AlertDialog.Builder dialog = new AlertDialog.Builder(this);
+        dialog.setTitle(R.string.app_name);
+        dialog.setMessage(mSnippet);
+        dialog.setPositiveButton(R.string.notealert_ok, this);
+        if (isScreenOn()) {
+            dialog.setNegativeButton(R.string.notealert_enter, this);
+        }
+        dialog.show().setOnDismissListener(this);
+    }
+
+    public void onClick(DialogInterface dialog, int which) {
+        switch (which) {
+            case DialogInterface.BUTTON_NEGATIVE:
+                Intent intent = new Intent(this, NoteEditActivity.class);
+                intent.setAction(Intent.ACTION_VIEW);
+                intent.putExtra(Intent.EXTRA_UID, mNoteId);
+                startActivity(intent);
+                break;
+            default:
+                break;
+        }
+    }
+
+    public void onDismiss(DialogInterface dialog) {
+        stopAlarmSound();
+        finish();
+    }
+
+    private void stopAlarmSound() {
+        if (mPlayer != null) {
+            mPlayer.stop();
+            mPlayer.release();
+            mPlayer = null;
+        }
+    }
+}
diff --git a/src/main/java/net/micode/notes/ui/NoteEditActivity.java b/src/main/java/net/micode/notes/ui/NoteEditActivity.java
index 462f91f..9738ffd 100644
--- a/src/main/java/net/micode/notes/ui/NoteEditActivity.java
+++ b/src/main/java/net/micode/notes/ui/NoteEditActivity.java
@@ -78,6 +78,7 @@ import java.util.regex.Pattern;
  * @date: 2023/12/27 0:08
  * @author: Xia Yanbo
 */
+
 public class NoteEditActivity extends Activity implements OnClickListener,
         NoteSettingChangedListener, OnTextViewChangeListener {
     //定义视图组件的基本数据（后面出现在了操作菜可选项里）
@@ -604,6 +605,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         } else {
             menu.findItem(R.id.menu_delete_remind).setVisible(false);
         }
+
         return true;
     }
     /**
@@ -652,6 +654,15 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ?
                     TextNote.MODE_CHECK_LIST : 0);
         }
+//        else if(item.getItemId()==  R.id.menu_secret)
+//        {
+//            mWorkingNote.setSecretMode();
+//
+//        }
+//        else if(item.getItemId()==  R.id.menu_quit_secret)
+//        {
+//            mWorkingNote.setSecretMode();
+//        }
         //分享
         else if(item.getItemId()==  R.id.menu_share)
         {
@@ -748,10 +759,6 @@ public class NoteEditActivity extends Activity implements OnClickListener,
      * @description:
      * @date: 2023/12/25 21:34
      * @author: Xia Yanbo
-     * @param:
-     * @param:
-     * @param:
-     * @return:
     */
     public void onClockAlertChanged(long date, boolean set) {
         /**
@@ -847,7 +854,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         int index = 0;
         for (String item : items) {
             if(!TextUtils.isEmpty(item)) {
-                mEditTextList.addView(getListItem(item, index));//添加列表项（标记：实现的关键步骤addView）
+                mEditTextList.addView(getListItem(item, index));//添加列表项（标记：实现的关键步骤addView，getlistitem）
                 index++;
             }
         }
diff --git a/src/main/java/net/micode/notes/ui/NotesListActivity.java b/src/main/java/net/micode/notes/ui/NotesListActivity.java
index 6394b05..93d1b2d 100644
--- a/src/main/java/net/micode/notes/ui/NotesListActivity.java
+++ b/src/main/java/net/micode/notes/ui/NotesListActivity.java
@@ -135,6 +135,8 @@ 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;
 
+    public static int secret_mode = 0;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -412,10 +414,35 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     private void startAsyncNotesListQuery() {
         String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
                 : NORMAL_SELECTION;
-        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");
+        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");
+
+        }
     }
 
     private final class BackgroundQueryHandler extends AsyncQueryHandler {
@@ -772,6 +799,10 @@ 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);
         return true;
     }
 
@@ -804,6 +835,50 @@ 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;
     }
@@ -941,4 +1016,16 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         }
         return false;
     }
+
+    public void setSecretMode() {
+        if(secret_mode==0)
+        {
+            secret_mode=1;
+        }
+        else{
+            secret_mode=0;
+        }
+    }
+
 }
+
diff --git a/src/main/res/menu/note_list.xml b/src/main/res/menu/note_list.xml
index 42ea736..9903e2e 100644
--- a/src/main/res/menu/note_list.xml
+++ b/src/main/res/menu/note_list.xml
@@ -36,4 +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"/>
+
 </menu>
diff --git a/src/main/res/menu/sub_folder.xml b/src/main/res/menu/sub_folder.xml
index b00de26..41fe907 100644
--- a/src/main/res/menu/sub_folder.xml
+++ b/src/main/res/menu/sub_folder.xml
@@ -21,4 +21,11 @@
     <item
         android:id="@+id/menu_new_note"
         android:title="@string/notelist_menu_new"/>
+    <item
+        android:id="@+id/menu_secret"
+        android:title="@string/menu_secret"/>
+
+    <item
+        android:id="@+id/menu_quit_secret"
+        android:title="@string/menu_quit_secret"/>
 </menu>
\ No newline at end of file
diff --git a/src/main/res/values-zh-rCN/strings.xml b/src/main/res/values-zh-rCN/strings.xml
index 09f75ed..214a5eb 100644
--- a/src/main/res/values-zh-rCN/strings.xml
+++ b/src/main/res/values-zh-rCN/strings.xml
@@ -71,6 +71,8 @@
     <string name="alert_message_delete_note">确认要删除该条便签吗?</string>
     <string name="alert_message_delete_folder">确认删除文件夹及所包含的便签吗？</string>
     <string name="format_move_notes_to_folder">已将所选 %1$d 条便签移到 %2$s 文件夹</string>
+    <string name="menu_secret">私密模式</string>
+    <string name="menu_quit_secret">退出私密模式</string>
     <!-- export text -->
     <string name="error_sdcard_unmounted">SD卡被占用，不能操作</string>
     <string name="error_sdcard_export">导出文本时发生错误，请检查SD卡</string>
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index 55df868..c54b8ad 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -75,6 +75,8 @@
     <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>
diff --git a/src/main/res/values/styles.xml b/src/main/res/values/styles.xml
index d750e65..ad0d90d 100644
--- a/src/main/res/values/styles.xml
+++ b/src/main/res/values/styles.xml
@@ -64,6 +64,6 @@
 
     <style name="NoteActionBarStyle" parent="@android:style/Widget.Holo.Light.ActionBar.Solid">
         <item name="android:displayOptions" />
-        <item name="android:visibility">gone</item>
+        <item name="android:visibility">visible</item>
     </style>
 </resources>
\ No newline at end of file