diff --git a/Src/.vs/Notes/FileContentIndex/90690e54-8618-4f90-8134-0b0189ec590e.vsidx b/Src/.vs/Notes/FileContentIndex/90690e54-8618-4f90-8134-0b0189ec590e.vsidx
new file mode 100644
index 0000000..ccfe962
Binary files /dev/null and b/Src/.vs/Notes/FileContentIndex/90690e54-8618-4f90-8134-0b0189ec590e.vsidx differ
diff --git a/Src/.vs/Notes/FileContentIndex/a372dcb6-478d-4736-9250-64743852f63d.vsidx b/Src/.vs/Notes/FileContentIndex/a372dcb6-478d-4736-9250-64743852f63d.vsidx
new file mode 100644
index 0000000..772e9d1
Binary files /dev/null and b/Src/.vs/Notes/FileContentIndex/a372dcb6-478d-4736-9250-64743852f63d.vsidx differ
diff --git a/Src/.vs/Notes/v17/.wsuo b/Src/.vs/Notes/v17/.wsuo
index 183071e..6328b7f 100644
Binary files a/Src/.vs/Notes/v17/.wsuo and b/Src/.vs/Notes/v17/.wsuo differ
diff --git a/Src/.vs/VSWorkspaceState.json b/Src/.vs/VSWorkspaceState.json
index a554726..816ed1a 100644
--- a/Src/.vs/VSWorkspaceState.json
+++ b/Src/.vs/VSWorkspaceState.json
@@ -2,17 +2,13 @@
   "ExpandedNodes": [
     "",
     "\\app",
-    "\\app\\build",
-    "\\app\\build\\tmp",
-    "\\app\\build\\tmp\\compileDebugJavaWithJavac",
     "\\app\\src",
     "\\app\\src\\main",
     "\\app\\src\\main\\java",
     "\\app\\src\\main\\java\\net",
     "\\app\\src\\main\\java\\net\\micode",
-    "\\app\\src\\main\\java\\net\\micode\\notes",
-    "\\app\\src\\main\\java\\net\\micode\\notes\\data"
+    "\\app\\src\\main\\java\\net\\micode\\notes"
   ],
-  "SelectedNode": "\\app\\build.gradle",
+  "SelectedNode": "\\app\\src\\main\\java\\net\\micode\\notes\\widget",
   "PreviewInSolutionExplorer": false
 }
\ No newline at end of file
diff --git a/Src/.vs/slnx.sqlite b/Src/.vs/slnx.sqlite
index 819289a..76ba5f6 100644
Binary files a/Src/.vs/slnx.sqlite and b/Src/.vs/slnx.sqlite differ
diff --git a/Src/app/src/main/java/net/micode/notes/tool/BackupUtils.java b/Src/app/src/main/java/net/micode/notes/tool/BackupUtils.java
index 8fc1c3f..d14a146 100644
--- a/Src/app/src/main/java/net/micode/notes/tool/BackupUtils.java
+++ b/Src/app/src/main/java/net/micode/notes/tool/BackupUtils.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
+//包声明，用于区分不同类
 package net.micode.notes.tool;
 
 import android.content.Context;
@@ -36,8 +36,8 @@ import java.io.IOException;
 import java.io.PrintStream;
 
 
-public class BackupUtils {
-    private static final String TAG = "BackupUtils";
+public class BackupUtils {//备份工具类，用于备份或恢复笔记数据到文本文件
+    private static final String TAG = "BackupUtils";//日志标签
     // 单例模式相关变量
     private static BackupUtils sInstance;
 
@@ -49,7 +49,7 @@ public class BackupUtils {
      */
     public static synchronized BackupUtils getInstance(Context context) {
         if (sInstance == null) {
-            sInstance = new BackupUtils(context);
+            sInstance = new BackupUtils(context);//创建BackupUtils的单例实例
         }
         return sInstance;
     }
@@ -68,7 +68,7 @@ public class BackupUtils {
     // 备份或恢复成功
     public static final int STATE_SUCCESS = 4;
 
-    private TextExport mTextExport;
+    private TextExport mTextExport;//文本导出功能实列
 
     /**
      * BackupUtils的私有构造函数。
@@ -76,7 +76,7 @@ public class BackupUtils {
      * @param context 上下文对象，用于初始化文本导出功能。
      */
     private BackupUtils(Context context) {
-        mTextExport = new TextExport(context);
+        mTextExport = new TextExport(context);//初始化
     }
 
     /**
@@ -103,7 +103,7 @@ public class BackupUtils {
      * @return 返回导出文本文件的名称。
      */
     public String getExportedTextFileName() {
-        return mTextExport.mFileName;
+        return mTextExport.mFileName;//获取文件名
     }
 
     /**
@@ -112,7 +112,7 @@ public class BackupUtils {
      * @return 返回导出文本文件所在的目录。
      */
     public String getExportedTextFileDir() {
-        return mTextExport.mFileDirectory;
+        return mTextExport.mFileDirectory;//获取文件目录
     }
 
     /**
@@ -216,10 +216,10 @@ public class BackupUtils {
                                 notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
                         // 导出该笔记的内容到文本
                         String noteId = notesCursor.getString(NOTE_COLUMN_ID);
-                        exportNoteToText(noteId, ps);
+                        exportNoteToText(noteId, ps);//获取笔记内容并写入打印流
                     } while (notesCursor.moveToNext());
                 }
-                notesCursor.close();
+                notesCursor.close();//关闭Cursor
             }
         }
 
@@ -290,14 +290,14 @@ public class BackupUtils {
             // 检查外部存储器是否可用
             if (!externalStorageAvailable()) {
                 Log.d(TAG, "Media was not mounted");
-                return STATE_SD_CARD_UNMOUONTED;
+                return STATE_SD_CARD_UNMOUONTED;//返回SD卡未挂载状态
             }
 
             // 获取用于导出的打印流
             PrintStream ps = getExportToTextPrintStream();
             if (ps == null) {
                 Log.e(TAG, "get print stream error");
-                return STATE_SYSTEM_ERROR;
+                return STATE_SYSTEM_ERROR;//返回系统错误状态
             }
 
             // 首先导出文件夹及其包含的笔记
@@ -383,7 +383,7 @@ public class BackupUtils {
                 e.printStackTrace();
                 return null; // 文件未找到异常，返回null
             } catch (NullPointerException e) {
-                e.printStackTrace();
+                e.printStackTrace();//打印异常堆栈
                 return null; // 空指针异常，返回null
             }
             return ps; // 返回PrintStream对象
diff --git a/Src/app/src/main/java/net/micode/notes/tool/DataUtils.java b/Src/app/src/main/java/net/micode/notes/tool/DataUtils.java
index 4149710..daa3474 100644
--- a/Src/app/src/main/java/net/micode/notes/tool/DataUtils.java
+++ b/Src/app/src/main/java/net/micode/notes/tool/DataUtils.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
+// 包声明，标识该类属于 net.micode.notes.tool 包
 package net.micode.notes.tool;
 
 import android.content.ContentProviderOperation;
@@ -26,17 +26,17 @@ import android.database.Cursor;
 import android.os.RemoteException;
 import android.util.Log;
 
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.CallNote;
-import net.micode.notes.data.Notes.NoteColumns;
-import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
+import net.micode.notes.data.Notes; // 导入 Notes 数据结构
+import net.micode.notes.data.Notes.CallNote; // 导入 CallNote 数据结构
+import net.micode.notes.data.Notes.NoteColumns; // 导入 NoteColumn 数据结构
+import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; // 导入小部件属性结构
 
 import java.util.ArrayList;
 import java.util.HashSet;
 
-
+// DataUtils 类，提供与数据相关的实用方法
 public class DataUtils {
-    public static final String TAG = "DataUtils";
+    public static final String TAG = "DataUtils";// 日志标签
 
     /**
      * 批量删除笔记
@@ -47,11 +47,11 @@ public class DataUtils {
      */
     public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
         if (ids == null) {
-            Log.d(TAG, "the ids is null");
+            Log.d(TAG, "the ids is null"); // 记录ID为空的情况
             return true;
         }
         if (ids.size() == 0) {
-            Log.d(TAG, "no id is in the hashset");
+            Log.d(TAG, "no id is in the hashset"); // 记录ID集合为空的情况
             return true;
         }
 
@@ -60,11 +60,11 @@ public class DataUtils {
         for (long id : ids) {
             if (id == Notes.ID_ROOT_FOLDER) {
                 Log.e(TAG, "Don't delete system folder root");
-                continue;
+                continue;// 跳过此ID
             }
             ContentProviderOperation.Builder builder = ContentProviderOperation
-                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
-            operationList.add(builder.build());
+                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));// 创建删除操作
+            operationList.add(builder.build());// 添加到操作列表
         }
         try {
             ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
@@ -75,7 +75,7 @@ public class DataUtils {
             }
             return true;
         } catch (RemoteException e) {
-            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));// 处理远程异常
         } catch (OperationApplicationException e) {
             Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
         }
@@ -91,11 +91,11 @@ public class DataUtils {
      * @param desFolderId 目标文件夹ID
      */
     public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
-        ContentValues values = new ContentValues();
-        values.put(NoteColumns.PARENT_ID, desFolderId);
-        values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
-        values.put(NoteColumns.LOCAL_MODIFIED, 1);
-        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
+        ContentValues values = new ContentValues();// 存储更新的内容
+        values.put(NoteColumns.PARENT_ID, desFolderId);// 更新笔记的父级文件夹ID
+        values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);// 存储原始文件夹ID
+        values.put(NoteColumns.LOCAL_MODIFIED, 1);// 标记为已修改
+        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);// 更新笔记
     }
 
     /**
@@ -117,10 +117,10 @@ public class DataUtils {
         ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
         for (long id : ids) {
             ContentProviderOperation.Builder builder = ContentProviderOperation
-                    .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
-            builder.withValue(NoteColumns.PARENT_ID, folderId);
-            builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
-            operationList.add(builder.build());
+                    .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));// 创建更新操作
+            builder.withValue(NoteColumns.PARENT_ID, folderId);// 更新目标文件夹ID
+            builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);// 标记为已修改
+            operationList.add(builder.build());// 添加到操作列表
         }
 
         try {
@@ -132,9 +132,9 @@ public class DataUtils {
             }
             return true;
         } catch (RemoteException e) {
-            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));// 处理远程异常
         } catch (OperationApplicationException e) {
-            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));// 处理应用操作异常
         }
         return false;
     }
@@ -147,8 +147,8 @@ public class DataUtils {
      */
     public static int getUserFolderCount(ContentResolver resolver) {
         Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
-                new String[]{"COUNT(*)"},
-                NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+                new String[]{"COUNT(*)"},// 查询计数
+                NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",// 条件：文件夹且不为回收站
                 new String[]{String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
                 null);
 
@@ -158,7 +158,7 @@ public class DataUtils {
                 try {
                     count = cursor.getInt(0);
                 } catch (IndexOutOfBoundsException e) {
-                    Log.e(TAG, "get folder count failed:" + e.toString());
+                    Log.e(TAG, "get folder count failed:" + e.toString());// 处理索引越界异常
                 } finally {
                     cursor.close();
                 }
@@ -274,12 +274,12 @@ public class DataUtils {
         HashSet<AppWidgetAttribute> set = null;
         if (c != null) {
             if (c.moveToFirst()) {
-                set = new HashSet<AppWidgetAttribute>();
+                set = new HashSet<AppWidgetAttribute>();// 维护一个小部件信息的集合
                 do {
                     try {
-                        AppWidgetAttribute widget = new AppWidgetAttribute();
-                        widget.widgetId = c.getInt(0);
-                        widget.widgetType = c.getInt(1);
+                        AppWidgetAttribute widget = new AppWidgetAttribute();// 创建小部件属性实例
+                        widget.widgetId = c.getInt(0);// 获取小部件ID
+                        widget.widgetType = c.getInt(1);// 获取小部件类型
                         set.add(widget);
                     } catch (IndexOutOfBoundsException e) {
                         Log.e(TAG, e.toString());
@@ -307,14 +307,14 @@ public class DataUtils {
 
         if (cursor != null && cursor.moveToFirst()) {
             try {
-                return cursor.getString(0);
+                return cursor.getString(0);// 返回通话号码
             } catch (IndexOutOfBoundsException e) {
                 Log.e(TAG, "Get call number fails " + e.toString());
             } finally {
                 cursor.close();
             }
         }
-        return "";
+        return "";// 若未找到返回空字符串
     }
 
     /**
diff --git a/Src/app/src/main/java/net/micode/notes/ui/DateTimePicker.java b/Src/app/src/main/java/net/micode/notes/ui/DateTimePicker.java
index aea9538..08764be 100644
--- a/Src/app/src/main/java/net/micode/notes/ui/DateTimePicker.java
+++ b/Src/app/src/main/java/net/micode/notes/ui/DateTimePicker.java
@@ -95,8 +95,8 @@ public class DateTimePicker extends FrameLayout {
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
             // 根据新旧值的差异更新日期
             mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);
-            updateDateControl();
-            onDateTimeChanged();
+            updateDateControl();// 更新日期控制
+            onDateTimeChanged();// 通知日期时间变化
         }
     };
 
@@ -120,8 +120,8 @@ public class DateTimePicker extends FrameLayout {
                 }
                 if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
                         oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
-                    mIsAm = !mIsAm;
-                    updateAmPmControl();
+                    mIsAm = !mIsAm;// 切换上午和下午
+                    updateAmPmControl();// 更新AM/PM控制
                 }
             } else {
                 // 处理24小时制下的日期变化
@@ -138,7 +138,7 @@ public class DateTimePicker extends FrameLayout {
             // 更新小时并触发日期时间改变事件
             int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
             mDate.set(Calendar.HOUR_OF_DAY, newHour);
-            onDateTimeChanged();
+            onDateTimeChanged();// 通知时间变化
             // 如果日期有变化，则更新年月日
             if (isDateChanged) {
                 setCurrentYear(cal.get(Calendar.YEAR));
@@ -158,18 +158,18 @@ public class DateTimePicker extends FrameLayout {
             int maxValue = mMinuteSpinner.getMaxValue();
             int offset = 0;
             if (oldVal == maxValue && newVal == minValue) {
-                offset += 1;
+                offset += 1;// 从最大值到最小值
             } else if (oldVal == minValue && newVal == maxValue) {
-                offset -= 1;
+                offset -= 1;// 从最小值到最大值
             }
             // 根据偏移量更新日期和小时选择器，并检查是否需要切换AM/PM
             if (offset != 0) {
                 mDate.add(Calendar.HOUR_OF_DAY, offset);
-                mHourSpinner.setValue(getCurrentHour());
+                mHourSpinner.setValue(getCurrentHour());// 更新小时选择器
                 updateDateControl();
                 int newHour = getCurrentHourOfDay();
                 if (newHour >= HOURS_IN_HALF_DAY) {
-                    mIsAm = false;
+                    mIsAm = false;// 设置为下午
                     updateAmPmControl();
                 } else {
                     mIsAm = true;
@@ -178,7 +178,7 @@ public class DateTimePicker extends FrameLayout {
             }
             // 更新分钟值并触发日期变化的回调
             mDate.set(Calendar.MINUTE, newVal);
-            onDateTimeChanged();
+            onDateTimeChanged();// 通知时间变化
         }
     };
 
@@ -188,9 +188,9 @@ public class DateTimePicker extends FrameLayout {
             // 切换AM/PM状态，并更新日期和AM/PM选择器
             mIsAm = !mIsAm;
             if (mIsAm) {
-                mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
+                mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);// 减去12小时
             } else {
-                mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY);
+                mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY);// 加上12小时
             }
             updateAmPmControl();
             onDateTimeChanged();
@@ -568,7 +568,7 @@ public class DateTimePicker extends FrameLayout {
      * @param callback 回调接口实例，如果为null则不执行任何操作
      */
     public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) {
-        mOnDateTimeChangedListener = callback;
+        mOnDateTimeChangedListener = callback;// 设置改变监听器
     }
 
     /**
diff --git a/Src/app/src/main/java/net/micode/notes/ui/NoteItemData.java b/Src/app/src/main/java/net/micode/notes/ui/NoteItemData.java
index e0c70c5..10a3dc8 100644
--- a/Src/app/src/main/java/net/micode/notes/ui/NoteItemData.java
+++ b/Src/app/src/main/java/net/micode/notes/ui/NoteItemData.java
@@ -61,20 +61,20 @@ public class NoteItemData {
     private static final int WIDGET_TYPE_COLUMN = 11;
 
     // 笔记的各项数据
-    private long mId;
-    private long mAlertDate;
-    private int mBgColorId;
-    private long mCreatedDate;
-    private boolean mHasAttachment;
-    private long mModifiedDate;
-    private int mNotesCount;
-    private long mParentId;
-    private String mSnippet;
-    private int mType;
-    private int mWidgetId;
-    private int mWidgetType;
-    private String mName;
-    private String mPhoneNumber;
+    private long mId; // 笔记ID
+    private long mAlertDate; // 提醒日期
+    private int mBgColorId; // 背景颜色ID
+    private long mCreatedDate; // 创建日期
+    private boolean mHasAttachment; // 是否有附件
+    private long mModifiedDate; // 修改日期
+    private int mNotesCount; // 笔记计数
+    private long mParentId; // 父ID
+    private String mSnippet; // 笔记摘要
+    private int mType; // 笔记类型
+    private int mWidgetId; // 小部件ID
+    private int mWidgetType; // 小部件类型
+    private String mName; // 联系人姓名
+    private String mPhoneNumber; // 联系人电话号码
 
     // 用于标识笔记在列表中的位置状态
     private boolean mIsLastItem;