src/Notesmaster/app/src/main/AndroidManifest.xml

@@ -62,6 +62,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.Notesmaster"
+        android:requestLegacyExternalStorage="true"
         tools:targetApi="31">
 
         <!-- ==================== 笔记列表活动 ==================== -->
@@ -155,6 +156,16 @@
             android:authorities="micode_notes"
             android:multiprocess="true" />
 
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="net.micode.notes.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
+
         <!-- ==================== 桌面小部件接收器 ==================== -->
         <!-- 2x2大小的笔记桌面小部件 -->
         <receiver

src/Notesmaster/app/src/main/java/net/micode/notes/MainActivity.java

@@ -5,6 +5,7 @@ import android.os.Bundle;
 import android.util.Log;
 import android.view.Gravity;
 import android.view.View;
+import android.widget.Toast;
 
 import androidx.activity.EdgeToEdge;
 import androidx.appcompat.app.AppCompatActivity;
@@ -15,6 +16,8 @@ import androidx.drawerlayout.widget.DrawerLayout;
 
 import net.micode.notes.data.Notes;
 import net.micode.notes.databinding.ActivityMainBinding;
+import net.micode.notes.tool.BackupUtils;
+import net.micode.notes.ui.BaseActivity;
 import net.micode.notes.ui.SidebarFragment;
 
 /**
@@ -24,7 +27,7 @@ import net.micode.notes.ui.SidebarFragment;
  * 支持边到边显示模式，自动适配系统栏的边距。
  * </p>
  */
-public class MainActivity extends AppCompatActivity implements SidebarFragment.OnSidebarItemSelectedListener {
+public class MainActivity extends BaseActivity implements SidebarFragment.OnSidebarItemSelectedListener {
 
     private static final String TAG = "MainActivity";
     private ActivityMainBinding binding;
@@ -129,7 +132,23 @@ public class MainActivity extends AppCompatActivity implements SidebarFragment.O
     @Override
     public void onExportSelected() {
         Log.d(TAG, "Export selected");
-        // TODO: 实现导出功能
+        BackupUtils backupUtils = BackupUtils.getInstance(this);
+        int state = backupUtils.exportToText();
+        switch (state) {
+            case BackupUtils.STATE_SUCCESS:
+                Toast.makeText(this, getString(R.string.format_exported_file_location,
+                        backupUtils.getExportedTextFileName(),
+                        backupUtils.getExportedTextFileDir()), Toast.LENGTH_SHORT).show();
+                break;
+            case BackupUtils.STATE_SD_CARD_UNMOUONTED:
+                Toast.makeText(this, R.string.error_sdcard_unmounted, Toast.LENGTH_SHORT).show();
+                break;
+            case BackupUtils.STATE_SYSTEM_ERROR:
+            default:
+                Toast.makeText(this, R.string.error_sdcard_export, Toast.LENGTH_SHORT).show();
+                break;
+        }
+        closeSidebar();
     }
 
     @Override

src/Notesmaster/app/src/main/java/net/micode/notes/NotesApplication.java

@@ -15,10 +15,18 @@ import android.provider.Settings;
 
 import com.google.android.material.color.DynamicColors;
 
+import net.micode.notes.tool.LocaleHelper;
+import android.content.Context;
+
 public class NotesApplication extends Application {
     
     private static final String TAG = "NotesApplication";
 
+    @Override
+    protected void attachBaseContext(Context base) {
+        super.attachBaseContext(LocaleHelper.onAttach(base));
+    }
+
     @Override
     public void onCreate() {
         super.onCreate();

src/Notesmaster/app/src/main/java/net/micode/notes/data/NotesRepository.java

@@ -32,6 +32,7 @@ import net.micode.notes.data.Notes.TextNote;
 import net.micode.notes.model.Note;
 import net.micode.notes.model.WorkingNote;
 import net.micode.notes.sync.SyncConstants;
+import net.micode.notes.tool.ResourceParser;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -428,6 +429,23 @@ public class NotesRepository {
         return notes;
     }
 
+    /**
+     * 查询单个笔记信息（异步版本）
+     *
+     * @param noteId 笔记ID
+     * @param callback 回调接口
+     */
+    public void getNoteInfo(long noteId, Callback<NoteInfo> callback) {
+        executor.execute(() -> {
+            try {
+                NoteInfo noteInfo = getFolderInfo(noteId);
+                callback.onSuccess(noteInfo);
+            } catch (Exception e) {
+                callback.onError(e);
+            }
+        });
+    }
+
     /**
      * 查询单个文件夹信息
      *
@@ -633,6 +651,11 @@ public class NotesRepository {
                 values.put(NoteColumns.LOCAL_MODIFIED, 1);
                 values.put(NoteColumns.SNIPPET, "");
 
+                // 设置默认背景颜色（支持随机背景设置）
+                if (context != null) {
+                    values.put(NoteColumns.BG_COLOR_ID, ResourceParser.getDefaultBgId(context));
+                }
+
                 Uri uri = contentResolver.insert(Notes.CONTENT_NOTE_URI, values);
 
                 Long noteId = 0L;
@@ -1536,6 +1559,23 @@ public class NotesRepository {
         });
     }
 
+    /**
+     * 获取笔记完整内容（异步版本）
+     *
+     * @param noteId 笔记ID
+     * @param callback 回调接口
+     */
+    public void getNoteContent(long noteId, Callback<String> callback) {
+        executor.execute(() -> {
+            try {
+                String content = getNoteContent(noteId);
+                callback.onSuccess(content);
+            } catch (Exception e) {
+                callback.onError(e);
+            }
+        });
+    }
+
     private String getNoteContent(long noteId) {
         String content = "";
         Cursor cursor = contentResolver.query(

src/Notesmaster/app/src/main/java/net/micode/notes/tool/BackupUtils.java

@@ -116,6 +116,27 @@ public class BackupUtils {
         return mTextExport.exportToText();
     }
 
+    /**
+     * 导出单条笔记为文本文件
+     *
+     * @param noteId 笔记 ID
+     * @param title 笔记标题（用于文件名）
+     * @return 导出状态码
+     */
+    public int exportNoteToText(String noteId, String title) {
+        return mTextExport.exportNoteToText(noteId, title);
+    }
+
+    /**
+     * 批量导出指定笔记为文本文件
+     *
+     * @param noteIds 笔记 ID 列表
+     * @return 导出状态码
+     */
+    public int exportNotesToText(java.util.List<Long> noteIds) {
+        return mTextExport.exportNotesToText(noteIds);
+    }
+
     /**
      * 获取导出的文本文件名
      * 
@@ -310,6 +331,72 @@ public class BackupUtils {
             }
         }
 
+        /**
+         * 导出单条笔记为文本文件
+         *
+         * @param noteId 笔记 ID
+         * @param title 笔记标题
+         * @return 导出状态码
+         */
+        public int exportNoteToText(String noteId, String title) {
+            if (!externalStorageAvailable()) {
+                Log.d(TAG, "Media was not mounted");
+                return STATE_SD_CARD_UNMOUONTED;
+            }
+
+            PrintStream ps = getExportNotePrintStream(title);
+            if (ps == null) {
+                Log.e(TAG, "get print stream error");
+                return STATE_SYSTEM_ERROR;
+            }
+
+            exportNoteToText(noteId, ps);
+            ps.close();
+
+            return STATE_SUCCESS;
+        }
+
+        /**
+         * 批量导出指定笔记为文本文件
+         *
+         * @param noteIds 笔记 ID 列表
+         * @return 导出状态码
+         */
+        public int exportNotesToText(java.util.List<Long> noteIds) {
+            if (!externalStorageAvailable()) {
+                Log.d(TAG, "Media was not mounted");
+                return STATE_SD_CARD_UNMOUONTED;
+            }
+
+            PrintStream ps = getExportToTextPrintStream();
+            if (ps == null) {
+                Log.e(TAG, "get print stream error");
+                return STATE_SYSTEM_ERROR;
+            }
+
+            for (Long noteId : noteIds) {
+                Cursor noteCursor = mContext.getContentResolver().query(
+                        net.micode.notes.data.Notes.CONTENT_NOTE_URI,
+                        NOTE_PROJECTION,
+                        net.micode.notes.data.Notes.NoteColumns.ID + "=?",
+                        new String[]{String.valueOf(noteId)},
+                        null);
+
+                if (noteCursor != null) {
+                    if (noteCursor.moveToFirst()) {
+                        ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
+                                mContext.getString(R.string.format_datetime_mdhm),
+                                noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
+                        exportNoteToText(String.valueOf(noteId), ps);
+                    }
+                    noteCursor.close();
+                }
+            }
+            ps.close();
+
+            return STATE_SUCCESS;
+        }
+
         /**
          * 导出笔记数据为文本文件
          * <p>
@@ -383,6 +470,31 @@ public class BackupUtils {
             return STATE_SUCCESS;
         }
 
+        /**
+         * 获取导出单条笔记文本文件的输出流
+         *
+         * @param title 笔记标题
+         * @return PrintStream 对象，如果创建失败则返回 null
+         */
+        private PrintStream getExportNotePrintStream(String title) {
+            File file = generateFileWithTitle(mContext, R.string.file_path, title);
+            if (file == null) {
+                Log.e(TAG, "create file to exported failed");
+                return null;
+            }
+            mFileName = file.getName();
+            mFileDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath();
+            PrintStream ps = null;
+            try {
+                FileOutputStream fos = new FileOutputStream(file);
+                ps = new PrintStream(fos);
+            } catch (FileNotFoundException e) {
+                e.printStackTrace();
+                return null;
+            }
+            return ps;
+        }
+
         /**
          * 获取导出文本文件的输出流
          * <p>
@@ -399,7 +511,7 @@ public class BackupUtils {
                 return null;
             }
             mFileName = file.getName();
-            mFileDirectory = mContext.getString(R.string.file_path);
+            mFileDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath();
             PrintStream ps = null;
             try {
                 FileOutputStream fos = new FileOutputStream(file);
@@ -416,31 +528,62 @@ public class BackupUtils {
     }
 
     /**
-     * 在 SD 卡上生成导出文本文件
+     * 在公用下载目录上生成指定标题的文本文件
+     *
+     * @param context 应用上下文
+     * @param filePathResId 文件路径资源 ID (不再使用，改为公用下载目录)
+     * @param title 笔记标题
+     * @return 生成的文件对象，如果创建失败则返回 null
+     */
+    private static File generateFileWithTitle(Context context, int filePathResId, String title) {
+        // 清理文件名中的非法字符
+        String fileName = title.replaceAll("[\\\\/:*?\"<>|]", "_");
+        if (TextUtils.isEmpty(fileName)) {
+            fileName = "untitled";
+        }
+        fileName = fileName + "_" + System.currentTimeMillis() + ".txt";
+
+        File filedir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
+        File file = new File(filedir, fileName);
+
+        try {
+            if (!filedir.exists()) {
+                filedir.mkdirs();
+            }
+            if (!file.exists()) {
+                file.createNewFile();
+            }
+            return file;
+        } catch (SecurityException | IOException e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+
+    /**
+     * 在公用下载目录上生成导出文本文件
      * <p>
      * 在指定的路径下创建导出文件，如果目录不存在则创建目录。
      * </p>
      * 
      * @param context 应用上下文
-     * @param filePathResId 文件路径资源 ID
+     * @param filePathResId 文件路径资源 ID (不再使用，改为公用下载目录)
      * @param fileNameFormatResId 文件名格式资源 ID
      * @return 生成的文件对象，如果创建失败则返回 null
      */
     private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
-        StringBuilder sb = new StringBuilder();
-        sb.append(Environment.getExternalStorageDirectory());
-        sb.append(context.getString(filePathResId));
-        File filedir = new File(sb.toString());
-        sb.append(context.getString(
+        File filedir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
+        String fileName = context.getString(
                 fileNameFormatResId,
                 DateFormat.format(context.getString(R.string.format_date_ymd),
-                        System.currentTimeMillis())));
-        File file = new File(sb.toString());
+                        System.currentTimeMillis()));
+        File file = new File(filedir, fileName);
 
         try {
             if (!filedir.exists()) {
                 // 创建目录
-                filedir.mkdir();
+                filedir.mkdirs();
             }
             if (!file.exists()) {
                 // 创建文件

src/Notesmaster/app/src/main/java/net/micode/notes/tool/ImageExportHelper.java

@@ -0,0 +1,117 @@
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.net.Uri;
+import android.view.View;
+import android.widget.ScrollView;
+
+import androidx.core.widget.NestedScrollView;
+import androidx.core.content.FileProvider;
+
+import android.os.Environment;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+/**
+ * 图片导出工具类
+ * <p>
+ * 提供将 View 转换为图片并分享的功能。
+ * </p>
+ */
+public class ImageExportHelper {
+    private static final String TAG = "ImageExportHelper";
+
+    /**
+     * 将 View 转换为 Bitmap
+     *
+     * @param view 要转换的 View
+     * @return 转换后的 Bitmap
+     */
+    public static Bitmap viewToBitmap(View view) {
+        if (view instanceof ScrollView || view instanceof NestedScrollView) {
+            int height = 0;
+            if (view instanceof ScrollView) {
+                ScrollView scrollView = (ScrollView) view;
+                for (int i = 0; i < scrollView.getChildCount(); i++) {
+                    height += scrollView.getChildAt(i).getHeight();
+                }
+            } else {
+                NestedScrollView nestedScrollView = (NestedScrollView) view;
+                for (int i = 0; i < nestedScrollView.getChildCount(); i++) {
+                    height += nestedScrollView.getChildAt(i).getHeight();
+                }
+            }
+            Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), height, Bitmap.Config.ARGB_8888);
+            Canvas canvas = new Canvas(bitmap);
+            canvas.drawColor(Color.WHITE);
+            view.draw(canvas);
+            return bitmap;
+        } else {
+            Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
+            Canvas canvas = new Canvas(bitmap);
+            canvas.drawColor(Color.WHITE);
+            view.draw(canvas);
+            return bitmap;
+        }
+    }
+
+    /**
+     * 保存 Bitmap 到公用下载目录
+     *
+     * @param context 应用上下文
+     * @param bitmap  要保存的 Bitmap
+     * @param title   笔记标题
+     * @return 生成的文件 Uri，如果保存失败则返回 null
+     */
+    public static Uri saveBitmapToExternal(Context context, Bitmap bitmap, String title) {
+        String fileName = title.replaceAll("[\\\\/:*?\"<>|]", "_");
+        if (fileName.isEmpty()) {
+            fileName = "untitled";
+        }
+        fileName += "_" + System.currentTimeMillis() + ".png";
+
+        File filedir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
+        File file = new File(filedir, fileName);
+
+        try {
+            if (!filedir.exists()) {
+                filedir.mkdirs();
+            }
+            FileOutputStream stream = new FileOutputStream(file);
+            bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
+            stream.close();
+            return FileProvider.getUriForFile(context, context.getPackageName() + ".fileprovider", file);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    /**
+     * 保存 Bitmap 到缓存目录并返回 Uri
+     *
+     * @param context 应用上下文
+     * @param bitmap  要保存的 Bitmap
+     * @return 文件的 Uri，如果保存失败则返回 null
+     */
+    public static Uri saveBitmapToCache(Context context, Bitmap bitmap) {
+        File cachePath = new File(context.getCacheDir(), "images");
+        cachePath.mkdirs();
+        try {
+            File file = new File(cachePath, "note_export_" + System.currentTimeMillis() + ".png");
+            FileOutputStream stream = new FileOutputStream(file);
+            bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
+            stream.close();
+            return FileProvider.getUriForFile(context, context.getPackageName() + ".fileprovider", file);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+}

src/Notesmaster/app/src/main/java/net/micode/notes/tool/LocaleHelper.java

@@ -0,0 +1,92 @@
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.os.Build;
+import androidx.preference.PreferenceManager;
+
+import java.util.Locale;
+
+public class LocaleHelper {
+
+    private static final String SELECTED_LANGUAGE = "Locale.Helper.Selected.Language";
+
+    public static Context onAttach(Context context) {
+        String lang = getPersistedData(context, Locale.getDefault().getLanguage());
+        return setLocale(context, lang);
+    }
+
+    public static Context onAttach(Context context, String defaultLanguage) {
+        String lang = getPersistedData(context, defaultLanguage);
+        return setLocale(context, lang);
+    }
+
+    public static String getLanguage(Context context) {
+        return getPersistedData(context, Locale.getDefault().getLanguage());
+    }
+
+    public static Context setLocale(Context context, String language) {
+        persist(context, language);
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            return updateResources(context, language);
+        }
+
+        return updateResourcesLegacy(context, language);
+    }
+
+    private static String getPersistedData(Context context, String defaultLanguage) {
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
+        // 默认语言改为中文 (zh-CN)
+        return preferences.getString(SELECTED_LANGUAGE, "zh-CN");
+    }
+
+    private static void persist(Context context, String language) {
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
+        SharedPreferences.Editor editor = preferences.edit();
+        editor.putString(SELECTED_LANGUAGE, language);
+        editor.apply();
+    }
+
+    private static Context updateResources(Context context, String language) {
+        Locale locale = getLocale(language);
+        Locale.setDefault(locale);
+
+        Configuration configuration = context.getResources().getConfiguration();
+        configuration.setLocale(locale);
+        configuration.setLayoutDirection(locale);
+
+        return context.createConfigurationContext(configuration);
+    }
+
+    private static Context updateResourcesLegacy(Context context, String language) {
+        Locale locale = getLocale(language);
+        Locale.setDefault(locale);
+
+        Resources resources = context.getResources();
+        Configuration configuration = resources.getConfiguration();
+        configuration.locale = locale;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            configuration.setLayoutDirection(locale);
+        }
+
+        resources.updateConfiguration(configuration, resources.getDisplayMetrics());
+
+        return context;
+    }
+
+    private static Locale getLocale(String language) {
+        if (language.equals("zh-CN")) {
+            return Locale.SIMPLIFIED_CHINESE;
+        } else if (language.equals("zh-TW")) {
+            return Locale.TRADITIONAL_CHINESE;
+        } else if (language.equals("en")) {
+            return Locale.ENGLISH;
+        } else if (language.equals("system")) {
+            return Locale.getDefault();
+        }
+        return new Locale(language);
+    }
+}

src/Notesmaster/app/src/main/java/net/micode/notes/tool/PdfExportHelper.java

@@ -0,0 +1,98 @@
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.pdf.PdfDocument;
+import android.os.Environment;
+import android.text.Layout;
+import android.text.StaticLayout;
+import android.text.TextPaint;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+/**
+ * PDF 导出工具类
+ * <p>
+ * 使用 Android PdfDocument API 将笔记导出为 PDF 文件。
+ * </p>
+ */
+public class PdfExportHelper {
+    private static final String TAG = "PdfExportHelper";
+
+    /**
+     * 将笔记导出为 PDF
+     *
+     * @param context 应用上下文
+     * @param title   笔记标题
+     * @param content 笔记内容
+     * @return 生成的 PDF 文件，如果失败则返回 null
+     */
+    public static File exportToPdf(Context context, String title, String content) {
+        PdfDocument document = new PdfDocument();
+        // A4 纸张大小 (595 x 842 points)
+        PdfDocument.PageInfo pageInfo = new PdfDocument.PageInfo.Builder(595, 842, 1).create();
+        PdfDocument.Page page = document.startPage(pageInfo);
+
+        Canvas canvas = page.getCanvas();
+        TextPaint titlePaint = new TextPaint();
+        titlePaint.setColor(Color.BLACK);
+        titlePaint.setTextSize(24);
+        titlePaint.setFakeBoldText(true);
+
+        TextPaint contentPaint = new TextPaint();
+        contentPaint.setColor(Color.BLACK);
+        contentPaint.setTextSize(14);
+
+        int x = 50;
+        int y = 50;
+
+        // 绘制标题
+        canvas.drawText(title, x, y, titlePaint);
+        y += 40;
+
+        // 绘制正文（自动换行）
+        StaticLayout staticLayout;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
+            staticLayout = StaticLayout.Builder.obtain(content, 0, content.length(), contentPaint, pageInfo.getPageWidth() - 100)
+                    .setAlignment(Layout.Alignment.ALIGN_NORMAL)
+                    .setLineSpacing(0.0f, 1.2f)
+                    .setIncludePad(false)
+                    .build();
+        } else {
+            staticLayout = new StaticLayout(content, contentPaint, pageInfo.getPageWidth() - 100,
+                    Layout.Alignment.ALIGN_NORMAL, 1.2f, 0.0f, false);
+        }
+
+        canvas.save();
+        canvas.translate(x, y);
+        staticLayout.draw(canvas);
+        canvas.restore();
+
+        document.finishPage(page);
+
+        // 生成文件名
+        String fileName = title.replaceAll("[\\\\/:*?\"<>|]", "_");
+        if (fileName.isEmpty()) {
+            fileName = "untitled";
+        }
+        fileName += "_" + System.currentTimeMillis() + ".pdf";
+
+        File file = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS), fileName);
+
+        try {
+            FileOutputStream fos = new FileOutputStream(file);
+            document.writeTo(fos);
+            fos.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+            file = null;
+        } finally {
+            document.close();
+        }
+
+        return file;
+    }
+}

src/Notesmaster/app/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java

@@ -39,6 +39,8 @@ import net.micode.notes.tool.DataUtils;
 
 import java.io.IOException;
 
+import net.micode.notes.tool.LocaleHelper;
+
 /**
  * 闹钟提醒活动
  * 
@@ -55,6 +57,11 @@ import java.io.IOException;
  * @see net.micode.notes.tool.DataUtils
  */
 public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
+
+    @Override
+    protected void attachBaseContext(Context newBase) {
+        super.attachBaseContext(LocaleHelper.onAttach(newBase));
+    }
     // 当前提醒的笔记ID
     private long mNoteId;
     // 笔记内容摘要

src/Notesmaster/app/src/main/java/net/micode/notes/ui/BaseActivity.java

@@ -0,0 +1,12 @@
+package net.micode.notes.ui;
+
+import android.content.Context;
+import androidx.appcompat.app.AppCompatActivity;
+import net.micode.notes.tool.LocaleHelper;
+
+public class BaseActivity extends AppCompatActivity {
+    @Override
+    protected void attachBaseContext(Context newBase) {
+        super.attachBaseContext(LocaleHelper.onAttach(newBase));
+    }
+}

src/Notesmaster/app/src/main/java/net/micode/notes/ui/CapsuleListActivity.java

@@ -8,7 +8,7 @@ import androidx.appcompat.app.AppCompatActivity;
 
 import net.micode.notes.R;
 
-public class CapsuleListActivity extends AppCompatActivity {
+public class CapsuleListActivity extends BaseActivity {
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {

src/Notesmaster/app/src/main/java/net/micode/notes/ui/LoginActivity.java

@@ -43,7 +43,7 @@ import net.micode.notes.viewmodel.LoginViewModel;
  * 遵循 MVVM 架构，所有业务逻辑委托给 {@link LoginViewModel}。
  * </p>
  */
-public class LoginActivity extends AppCompatActivity {
+public class LoginActivity extends BaseActivity {
 
     private static final String TAG = "LoginActivity";
 

src/Notesmaster/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java

@@ -53,6 +53,8 @@ import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 import android.widget.Toast;
+import android.graphics.Bitmap;
+import android.net.Uri;
 
 import net.micode.notes.R;
 import net.micode.notes.data.Notes;
@@ -61,7 +63,10 @@ import net.micode.notes.model.NoteCommand;
 import net.micode.notes.model.UndoRedoManager;
 import net.micode.notes.model.WorkingNote;
 import net.micode.notes.model.WorkingNote.NoteSettingChangedListener;
+import net.micode.notes.tool.BackupUtils;
 import net.micode.notes.tool.DataUtils;
+import net.micode.notes.tool.ImageExportHelper;
+import net.micode.notes.tool.PdfExportHelper;
 import net.micode.notes.tool.ResourceParser;
 import net.micode.notes.tool.ResourceParser.TextAppearanceResources;
 import net.micode.notes.ui.DateTimePickerDialog.OnDateTimeSetListener;
@@ -88,7 +93,13 @@ import net.micode.notes.tool.SmartParser;
 
 import net.micode.notes.data.FontManager;
 
-public class NoteEditActivity extends AppCompatActivity implements OnClickListener,
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
+
+import java.io.File;
+import java.util.ArrayList;
+
+public class NoteEditActivity extends BaseActivity implements OnClickListener,
         NoteSettingChangedListener, OnTextViewChangeListener {
     /**
      * 笔记头部视图持有者
@@ -453,7 +464,12 @@ public class NoteEditActivity extends AppCompatActivity implements OnClickListen
         }
 
         mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
-        mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);
+        try {
+            String fontSizeStr = mSharedPrefs.getString(PREFERENCE_FONT_SIZE, String.valueOf(ResourceParser.BG_DEFAULT_FONT_SIZE));
+            mFontSizeId = Integer.parseInt(fontSizeStr);
+        } catch (ClassCastException e) {
+            mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);
+        }
         /**
          * HACKME: Fix bug of store the resource id in shared preference.
          * The id may larger than the length of resources, in this case,
@@ -1030,6 +1046,9 @@ public class NoteEditActivity extends AppCompatActivity implements OnClickListen
                 getWorkingText();
                 sendTo(this, mWorkingNote.getContent());
                 break;
+            case R.id.menu_export:
+                showExportDialog();
+                break;
             case R.id.menu_send_to_desktop:
                 sendToDesktop();
                 break;
@@ -1077,6 +1096,135 @@ public class NoteEditActivity extends AppCompatActivity implements OnClickListen
         context.startActivity(intent);
     }
 
+    /**
+     * 显示导出选项对话框
+     */
+    private void showExportDialog() {
+        if (mWorkingNote.getNoteId() == 0) {
+            saveNote();
+        }
+        getWorkingText();
+        String content = mWorkingNote.getContent();
+        if (TextUtils.isEmpty(content)) {
+            showToast(R.string.error_note_empty_for_send_to_desktop);
+            return;
+        }
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setTitle("导出便签");
+
+        LinearLayout layout = new LinearLayout(this);
+        layout.setOrientation(LinearLayout.VERTICAL);
+        layout.setPadding(50, 20, 50, 20);
+
+        final RadioGroup group = new RadioGroup(this);
+        RadioButton rbText = new RadioButton(this);
+        rbText.setText("导出为文本 (.txt)");
+        rbText.setId(View.generateViewId());
+        group.addView(rbText);
+
+        RadioButton rbImage = new RadioButton(this);
+        rbImage.setText("导出为图片 (.png)");
+        rbImage.setId(View.generateViewId());
+        group.addView(rbImage);
+
+        RadioButton rbPdf = new RadioButton(this);
+        rbPdf.setText("导出为 PDF (.pdf)");
+        rbPdf.setId(View.generateViewId());
+        group.addView(rbPdf);
+
+        group.check(rbText.getId());
+        layout.addView(group);
+
+        final CheckBox cbShare = new CheckBox(this);
+        cbShare.setText("导出后立即分享");
+        layout.addView(cbShare);
+
+        builder.setView(layout);
+
+        builder.setPositiveButton("开始导出", (dialog, which) -> {
+            int checkedId = group.getCheckedRadioButtonId();
+            boolean share = cbShare.isChecked();
+
+            if (checkedId == rbText.getId()) {
+                performExport(0, share);
+            } else if (checkedId == rbImage.getId()) {
+                performExport(1, share);
+            } else if (checkedId == rbPdf.getId()) {
+                performExport(2, share);
+            }
+        });
+
+        builder.setNegativeButton("取消", null);
+        builder.show();
+    }
+
+    private void performExport(int format, boolean share) {
+        String content = mWorkingNote.getContent();
+        String title = getTitleFromContent(content);
+        String noteId = String.valueOf(mWorkingNote.getNoteId());
+
+        switch (format) {
+            case 0: // Text
+                BackupUtils backupUtils = BackupUtils.getInstance(this);
+                int state = backupUtils.exportNoteToText(noteId, title);
+                if (state == BackupUtils.STATE_SUCCESS) {
+                    File file = new File(backupUtils.getExportedTextFileDir(), backupUtils.getExportedTextFileName());
+                    showToast("已导出至下载目录: " + file.getName());
+                    if (share) shareFile(file, "text/plain");
+                } else {
+                    showToast("导出文本失败");
+                }
+                break;
+            case 1: // Image
+                binding.svNoteEditScroll.post(() -> {
+                    Bitmap bitmap = ImageExportHelper.viewToBitmap(binding.cvEditorSurface);
+                    Uri uri = ImageExportHelper.saveBitmapToExternal(NoteEditActivity.this, bitmap, title);
+                    if (uri != null) {
+                        showToast("已导出图片至下载目录");
+                        if (share) shareUri(uri, "image/png");
+                    } else {
+                        showToast("生成图片失败");
+                    }
+                });
+                break;
+            case 2: // PDF
+                File pdfFile = PdfExportHelper.exportToPdf(this, title, content);
+                if (pdfFile != null) {
+                    showToast("已导出 PDF 至下载目录: " + pdfFile.getName());
+                    if (share) shareFile(pdfFile, "application/pdf");
+                } else {
+                    showToast("导出 PDF 失败");
+                }
+                break;
+        }
+    }
+
+    private String getTitleFromContent(String content) {
+        String title = content.trim();
+        int firstNewLine = title.indexOf('\n');
+        if (firstNewLine > 0) {
+            title = title.substring(0, firstNewLine);
+        }
+        if (title.length() > 30) {
+            title = title.substring(0, 30);
+        }
+        return title;
+    }
+
+    private void shareFile(File file, String mimeType) {
+        Uri uri = androidx.core.content.FileProvider.getUriForFile(this, getPackageName() + ".fileprovider", file);
+        shareUri(uri, mimeType);
+    }
+
+    private void shareUri(Uri uri, String mimeType) {
+        Intent intent = new Intent(Intent.ACTION_SEND);
+        intent.setType(mimeType);
+        intent.putExtra(Intent.EXTRA_STREAM, uri);
+        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        startActivity(Intent.createChooser(intent, "分享便签"));
+    }
+
     /**
      * 创建新笔记
      * <p>
@@ -1742,6 +1890,17 @@ public class NoteEditActivity extends AppCompatActivity implements OnClickListen
         }
     }
 
+    /**
+     * 显示Toast提示
+     * <p>
+     * 显示指定文本的Toast提示消息。
+     * </p>
+     * @param text 提示文本
+     */
+    private void showToast(String text) {
+        Toast.makeText(this, text, Toast.LENGTH_SHORT).show();
+    }
+
     /**
      * 显示Toast提示
      * <p>

src/Notesmaster/app/src/main/java/net/micode/notes/ui/NoteSearchActivity.java

@@ -21,7 +21,7 @@ import net.micode.notes.tool.SearchHistoryManager;
 import java.util.ArrayList;
 import java.util.List;
 
-public class NoteSearchActivity extends AppCompatActivity implements SearchView.OnQueryTextListener, NoteSearchAdapter.OnItemClickListener {
+public class NoteSearchActivity extends BaseActivity implements SearchView.OnQueryTextListener, NoteSearchAdapter.OnItemClickListener {
 
     private SearchView mSearchView;
     private RecyclerView mRecyclerView;

src/Notesmaster/app/src/main/java/net/micode/notes/ui/NotesListActivity.java

@@ -3,13 +3,31 @@ package net.micode.notes.ui;
 import android.app.AlertDialog;
 import android.content.BroadcastReceiver;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.net.Uri;
 import android.os.Bundle;
+import android.text.TextUtils;
 import android.util.Log;
 import android.view.View;
+import android.widget.CheckBox;
+import android.widget.EditText;
+import android.widget.LinearLayout;
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
 import android.widget.Toast;
 
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+import net.micode.notes.tool.ImageExportHelper;
+import net.micode.notes.tool.PdfExportHelper;
+
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.view.GravityCompat;
@@ -23,6 +41,7 @@ import net.micode.notes.data.Notes;
 import net.micode.notes.data.NotesRepository;
 import net.micode.notes.databinding.ActivityHomeBinding;
 import net.micode.notes.sync.SyncManager;
+import net.micode.notes.tool.BackupUtils;
 import net.micode.notes.tool.SecurityManager;
 import net.micode.notes.viewmodel.NotesListViewModel;
 
@@ -33,7 +52,7 @@ import net.micode.notes.viewmodel.NotesListViewModel;
  * 使用 ViewBinding 访问视图。
  * </p>
  */
-public class NotesListActivity extends AppCompatActivity implements SidebarFragment.OnSidebarItemSelectedListener {
+public class NotesListActivity extends BaseActivity implements SidebarFragment.OnSidebarItemSelectedListener {
 
     private static final String TAG = "NotesListActivity";
     private ActivityHomeBinding binding;
@@ -137,6 +156,11 @@ public class NotesListActivity extends AppCompatActivity implements SidebarFragm
             viewModel.setIsSelectionMode(false);
         });
 
+        binding.btnActionExport.setOnClickListener(v -> {
+            exportSelectedNotes();
+            viewModel.setIsSelectionMode(false);
+        });
+
         binding.btnActionLock.setOnClickListener(v -> {
             SecurityManager securityManager = SecurityManager.getInstance(this);
             if (!securityManager.isPasswordSet()) {
@@ -200,7 +224,7 @@ public class NotesListActivity extends AppCompatActivity implements SidebarFragm
             new ViewModelProvider.Factory() {
                 @Override
                 public <T extends androidx.lifecycle.ViewModel> T create(Class<T> modelClass) {
-                    return (T) new NotesListViewModel(repository);
+                    return (T) new NotesListViewModel(getApplication(), repository);
                 }
             }).get(NotesListViewModel.class);
 
@@ -250,6 +274,15 @@ public class NotesListActivity extends AppCompatActivity implements SidebarFragm
             updateSelectionCount();
             updateSelectionActionUI();
         });
+
+        viewModel.getSidebarRefreshNeeded().observe(this, needed -> {
+            if (needed) {
+                SidebarFragment fragment = (SidebarFragment) getSupportFragmentManager().findFragmentById(R.id.sidebar_fragment);
+                if (fragment != null) {
+                    fragment.refreshFolderTree();
+                }
+            }
+        });
     }
 
     private void updateTrashModeUI(boolean isTrash) {
@@ -365,17 +398,257 @@ public class NotesListActivity extends AppCompatActivity implements SidebarFragm
     @Override public void onSyncSelected() { binding.drawerLayout.closeDrawer(GravityCompat.START); SyncManager.getInstance().syncNotes(null); }
     @Override public void onLoginSelected() { binding.drawerLayout.closeDrawer(GravityCompat.START); startActivity(new Intent(this, LoginActivity.class)); }
     @Override public void onLogoutSelected() { binding.drawerLayout.closeDrawer(GravityCompat.START); viewModel.refreshNotes(); }
-    @Override public void onExportSelected() { binding.drawerLayout.closeDrawer(GravityCompat.START); Toast.makeText(this, "导出功能待实现", Toast.LENGTH_SHORT).show(); }
+    @Override public void onExportSelected() { 
+        binding.drawerLayout.closeDrawer(GravityCompat.START); 
+        viewModel.setIsSelectionMode(true);
+        Toast.makeText(this, "请选择要导出的便签", Toast.LENGTH_SHORT).show();
+    }
     @Override public void onTemplateSelected() { binding.drawerLayout.closeDrawer(GravityCompat.START); viewModel.enterFolder(Notes.ID_TEMPLATE_FOLDER); }
     @Override public void onSettingsSelected() { binding.drawerLayout.closeDrawer(GravityCompat.START); startActivity(new Intent(this, SettingsActivity.class)); }
     @Override public void onCapsuleSelected() { 
         binding.drawerLayout.closeDrawer(GravityCompat.START);
         startActivity(new Intent(this, CapsuleListActivity.class));
     }
-    @Override public void onCreateFolder() { binding.drawerLayout.closeDrawer(GravityCompat.START); /* Show dialog */ }
+    @Override public void onCreateFolder() { 
+        binding.drawerLayout.closeDrawer(GravityCompat.START);
+        SidebarFragment fragment = (SidebarFragment) getSupportFragmentManager().findFragmentById(R.id.sidebar_fragment);
+        if (fragment != null) {
+            fragment.showCreateFolderDialog();
+        }
+    }
     @Override public void onCloseSidebar() { binding.drawerLayout.closeDrawer(GravityCompat.START); }
-    @Override public void onRenameFolder(long folderId) { /* Handle rename */ }
-    @Override public void onDeleteFolder(long folderId) { /* Handle delete */ }
+    @Override public void onRenameFolder(long folderId) { 
+        binding.drawerLayout.closeDrawer(GravityCompat.START);
+        // Show rename dialog
+        viewModel.getFolderInfo(folderId, new NotesRepository.Callback<NotesRepository.NoteInfo>() {
+            @Override
+            public void onSuccess(NotesRepository.NoteInfo folderInfo) {
+                runOnUiThread(() -> {
+                    if (folderInfo != null) {
+                        showRenameFolderDialog(folderId, folderInfo.snippet);
+                    }
+                });
+            }
+
+            @Override
+            public void onError(Exception error) {
+                runOnUiThread(() -> Toast.makeText(NotesListActivity.this, "获取文件夹信息失败", Toast.LENGTH_SHORT).show());
+            }
+        });
+    }
+    
+    private void exportSelectedNotes() {
+        java.util.List<Long> selectedIds = viewModel.getSelectedNoteIds();
+        if (selectedIds.isEmpty()) {
+            Toast.makeText(this, "请先选择要导出的便签", Toast.LENGTH_SHORT).show();
+            return;
+        }
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setTitle("批量导出便签");
+
+        LinearLayout layout = new LinearLayout(this);
+        layout.setOrientation(LinearLayout.VERTICAL);
+        layout.setPadding(50, 20, 50, 20);
+
+        final RadioGroup group = new RadioGroup(this);
+        RadioButton rbText = new RadioButton(this);
+        rbText.setText("导出为文本 (.txt)");
+        rbText.setId(View.generateViewId());
+        group.addView(rbText);
+
+        RadioButton rbImage = new RadioButton(this);
+        rbImage.setText("导出为图片 (.png)");
+        rbImage.setId(View.generateViewId());
+        group.addView(rbImage);
+
+        RadioButton rbPdf = new RadioButton(this);
+        rbPdf.setText("导出为 PDF (.pdf)");
+        rbPdf.setId(View.generateViewId());
+        group.addView(rbPdf);
+
+        group.check(rbText.getId());
+        layout.addView(group);
+
+        final CheckBox cbShare = new CheckBox(this);
+        cbShare.setText("导出后立即分享");
+        layout.addView(cbShare);
+
+        builder.setView(layout);
+
+        builder.setPositiveButton("开始导出", (dialog, which) -> {
+            int checkedId = group.getCheckedRadioButtonId();
+            boolean share = cbShare.isChecked();
+
+            if (checkedId == rbText.getId()) {
+                 performBatchExport(0, selectedIds, share);
+             } else if (checkedId == rbImage.getId()) {
+                 performBatchExport(1, selectedIds, share);
+             } else if (checkedId == rbPdf.getId()) {
+                 performBatchExport(2, selectedIds, share);
+             }
+         });
+
+        builder.setNegativeButton("取消", null);
+        builder.show();
+    }
+
+    private void performBatchExport(int format, java.util.List<Long> selectedIds, boolean share) {
+        if (format == 0) { // Text (Combined)
+            BackupUtils backupUtils = BackupUtils.getInstance(this);
+            int state = backupUtils.exportNotesToText(selectedIds);
+            if (state == BackupUtils.STATE_SUCCESS) {
+                File file = new File(backupUtils.getExportedTextFileDir(), backupUtils.getExportedTextFileName());
+                Toast.makeText(this, "已导出至下载目录: " + file.getName(), Toast.LENGTH_SHORT).show();
+                if (share) shareFile(file, "text/plain");
+            } else {
+                Toast.makeText(this, "导出失败", Toast.LENGTH_SHORT).show();
+            }
+        } else {
+            final ArrayList<Uri> uris = new ArrayList<>();
+            final int total = selectedIds.size();
+            final int[] successCount = {0};
+            final String mimeType = (format == 1) ? "image/png" : "application/pdf";
+
+            for (Long id : selectedIds) {
+                viewModel.getNoteContent(id, new NotesRepository.Callback<String>() {
+                    @Override
+                    public void onSuccess(String content) {
+                        if (!TextUtils.isEmpty(content)) {
+                            String title = getTitleFromContent(content);
+                            File exportedFile = null;
+                            if (format == 1) { // Image
+                                Bitmap bitmap = renderTextToBitmap(content);
+                                Uri uri = ImageExportHelper.saveBitmapToExternal(NotesListActivity.this, bitmap, title);
+                                if (uri != null) {
+                                    successCount[0]++;
+                                    uris.add(uri);
+                                }
+                            } else { // PDF
+                                exportedFile = PdfExportHelper.exportToPdf(NotesListActivity.this, title, content);
+                                if (exportedFile != null) {
+                                    successCount[0]++;
+                                    uris.add(androidx.core.content.FileProvider.getUriForFile(NotesListActivity.this, getPackageName() + ".fileprovider", exportedFile));
+                                }
+                            }
+                        }
+                        checkBatchFinished(successCount[0], total, uris, mimeType, share);
+                    }
+
+                    @Override
+                    public void onError(Exception error) {
+                        checkBatchFinished(successCount[0], total, uris, mimeType, share);
+                    }
+                });
+            }
+        }
+    }
+
+    private Bitmap renderTextToBitmap(String text) {
+        android.widget.TextView textView = new android.widget.TextView(this);
+        textView.setText(text);
+        textView.setTextColor(Color.BLACK);
+        textView.setBackgroundColor(Color.WHITE);
+        textView.setTextSize(16);
+        textView.setPadding(40, 40, 40, 40);
+        textView.setWidth(800);
+        
+        int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(800, View.MeasureSpec.EXACTLY);
+        int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
+        textView.measure(widthMeasureSpec, heightMeasureSpec);
+        textView.layout(0, 0, textView.getMeasuredWidth(), textView.getMeasuredHeight());
+        
+        Bitmap bitmap = Bitmap.createBitmap(textView.getMeasuredWidth(), textView.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
+        Canvas canvas = new Canvas(bitmap);
+        textView.draw(canvas);
+        return bitmap;
+    }
+
+    private synchronized void checkBatchFinished(int success, int total, ArrayList<Uri> uris, String mimeType, boolean share) {
+        // Since we are doing this sequentially or with callbacks, we need to track progress
+        // For simplicity in this implementation, I'll just check if we have reached total count
+        if (uris.size() + (total - success) >= total) {
+            if (success > 0) {
+                Toast.makeText(this, "成功导出 " + success + " 个文件至下载目录", Toast.LENGTH_SHORT).show();
+                if (share) shareUris(uris, mimeType);
+            } else {
+                Toast.makeText(this, "导出失败", Toast.LENGTH_SHORT).show();
+            }
+        }
+    }
+
+    private String getTitleFromContent(String content) {
+        if (TextUtils.isEmpty(content)) return "untitled";
+        String title = content.trim();
+        int firstNewLine = title.indexOf('\n');
+        if (firstNewLine > 0) {
+            title = title.substring(0, firstNewLine);
+        }
+        if (title.length() > 30) {
+            title = title.substring(0, 30);
+        }
+        return title;
+    }
+
+    private void shareFile(File file, String mimeType) {
+        Uri uri = androidx.core.content.FileProvider.getUriForFile(this, getPackageName() + ".fileprovider", file);
+        Intent intent = new Intent(Intent.ACTION_SEND);
+        intent.setType(mimeType);
+        intent.putExtra(Intent.EXTRA_STREAM, uri);
+        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        startActivity(Intent.createChooser(intent, "分享便签"));
+    }
+
+    private void shareUris(ArrayList<Uri> uris, String mimeType) {
+        Intent intent = new Intent(Intent.ACTION_SEND_MULTIPLE);
+        intent.setType(mimeType);
+        intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);
+        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+        startActivity(Intent.createChooser(intent, "分享便签"));
+    }
+
+    private void showRenameFolderDialog(long folderId, String currentName) {
+        final EditText input = new EditText(this);
+        input.setText(currentName);
+        input.setSelection(currentName.length());
+        
+        new AlertDialog.Builder(this)
+            .setTitle(R.string.dialog_rename_folder_title)
+            .setView(input)
+            .setPositiveButton(R.string.menu_rename, (dialog, which) -> {
+                String newName = input.getText().toString().trim();
+                if (!newName.isEmpty()) {
+                    viewModel.renameFolder(folderId, newName);
+                }
+            })
+            .setNegativeButton(android.R.string.cancel, null)
+            .show();
+    }
+    
+    @Override public void onDeleteFolder(long folderId) { 
+        binding.drawerLayout.closeDrawer(GravityCompat.START);
+        // Show delete confirmation
+        viewModel.getFolderInfo(folderId, new NotesRepository.Callback<NotesRepository.NoteInfo>() {
+            @Override
+            public void onSuccess(NotesRepository.NoteInfo folderInfo) {
+                runOnUiThread(() -> {
+                    if (folderInfo != null) {
+                        new AlertDialog.Builder(NotesListActivity.this)
+                            .setTitle(R.string.dialog_delete_folder_title)
+                            .setMessage(String.format(getString(R.string.dialog_delete_folder_with_notes), folderInfo.snippet, folderInfo.notesCount))
+                            .setPositiveButton(R.string.menu_delete, (dialog, which) -> viewModel.deleteFolder(folderId))
+                            .setNegativeButton(android.R.string.cancel, null)
+                            .show();
+                    }
+                });
+            }
+
+            @Override
+            public void onError(Exception error) {
+                runOnUiThread(() -> Toast.makeText(NotesListActivity.this, "获取文件夹信息失败", Toast.LENGTH_SHORT).show());
+            }
+        });
+    }
 
     private class MainPagerAdapter extends FragmentStateAdapter {
         public MainPagerAdapter(@NonNull AppCompatActivity activity) { super(activity); }

src/Notesmaster/app/src/main/java/net/micode/notes/ui/NotesListFragment.java

@@ -66,7 +66,7 @@ public class NotesListFragment extends Fragment implements
             new ViewModelProvider.Factory() {
                 @Override
                 public <T extends androidx.lifecycle.ViewModel> T create(Class<T> modelClass) {
-                    return (T) new NotesListViewModel(repository);
+                    return (T) new NotesListViewModel(requireActivity().getApplication(), repository);
                 }
             }).get(NotesListViewModel.class);
     }

src/Notesmaster/app/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java

@@ -11,7 +11,7 @@ import androidx.appcompat.app.AppCompatActivity;
 
 import net.micode.notes.R;
 
-public class NotesPreferenceActivity extends AppCompatActivity {
+public class NotesPreferenceActivity extends BaseActivity {
 
     public static final String PREFERENCE_NAME = "notes_preferences";
     public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name";
@@ -33,20 +33,6 @@ public class NotesPreferenceActivity extends AppCompatActivity {
                     .replace(R.id.settings_container, new SettingsFragment())
                     .commit();
         }
-
-        loadSyncButton();
-    }
-
-    private void loadSyncButton() {
-        Button syncButton = findViewById(R.id.preference_sync_button);
-        TextView lastSyncTimeView = findViewById(R.id.prefenerece_sync_status_textview);
-
-        // Google Tasks同步功能已禁用
-        syncButton.setEnabled(false);
-        syncButton.setText("同步功能已禁用");
-
-        lastSyncTimeView.setText("Google Tasks同步功能已禁用");
-        lastSyncTimeView.setVisibility(View.VISIBLE);
     }
 
     public static String getSyncAccountName(android.content.Context context) {

src/Notesmaster/app/src/main/java/net/micode/notes/ui/SettingsActivity.java

@@ -5,7 +5,7 @@ import androidx.appcompat.app.AppCompatActivity;
 import androidx.preference.PreferenceFragmentCompat;
 import net.micode.notes.R;
 
-public class SettingsActivity extends AppCompatActivity {
+public class SettingsActivity extends BaseActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

src/Notesmaster/app/src/main/java/net/micode/notes/ui/SettingsFragment.java

@@ -29,10 +29,15 @@ import net.micode.notes.capsule.ClipboardMonitorService;
 import static android.app.Activity.RESULT_OK;
 
 public class SettingsFragment extends PreferenceFragmentCompat {
-    public static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key";
     public static final String PREFERENCE_SECURITY_KEY = "pref_key_security";
     public static final String PREFERENCE_THEME_MODE = "pref_theme_mode";
     public static final String PREFERENCE_CAPSULE_ENABLE = "pref_key_capsule_enable";
+    public static final String PREFERENCE_FONT_SIZE = "pref_font_size";
+    public static final String PREFERENCE_BG_RANDOM_APPEAR = "pref_key_bg_random_appear";
+    public static final String PREFERENCE_LANGUAGE = "pref_language";
+    public static final String PREFERENCE_CLOUD_SYNC_KEY = "pref_key_cloud_sync";
+    public static final String PREFERENCE_EXPORT_NOTES_KEY = "pref_key_export_notes";
+    
     public static final int REQUEST_CODE_CHECK_PASSWORD = 104;
     public static final int REQUEST_CODE_OVERLAY_PERMISSION = 105;
 
@@ -41,10 +46,77 @@ public class SettingsFragment extends PreferenceFragmentCompat {
         setPreferencesFromResource(R.xml.preferences, rootKey);
         loadThemePreference();
         loadSecurityPreference();
-        loadAccountPreference();
         loadCapsulePreference();
+        loadCloudSyncPreference();
+        loadExportPreference();
+        loadFontSizePreference();
+        loadLanguagePreference();
+    }
+    
+    private void loadLanguagePreference() {
+        ListPreference languagePref = findPreference(PREFERENCE_LANGUAGE);
+        if (languagePref != null) {
+            languagePref.setOnPreferenceChangeListener((preference, newValue) -> {
+                String language = (String) newValue;
+                net.micode.notes.tool.LocaleHelper.setLocale(getContext(), language);
+                // 重新启动应用或 Activity 以应用更改
+                getActivity().recreate();
+                return true;
+            });
+        }
     }
     
+    private void loadFontSizePreference() {
+        ListPreference fontSizePref = findPreference(PREFERENCE_FONT_SIZE);
+        if (fontSizePref != null) {
+            fontSizePref.setOnPreferenceChangeListener((preference, newValue) -> {
+                // ListPreference 默认存储字符串，NoteEditActivity 需要整数
+                // 这里我们只需确保它能保存，NoteEditActivity 稍后会修改读取逻辑
+                return true;
+            });
+        }
+    }
+
+    private void loadCloudSyncPreference() {
+        Preference syncPref = findPreference(PREFERENCE_CLOUD_SYNC_KEY);
+        if (syncPref != null) {
+            syncPref.setOnPreferenceClickListener(preference -> {
+                Intent intent = new Intent(getActivity(), SyncActivity.class);
+                startActivity(intent);
+                return true;
+            });
+        }
+    }
+
+    private void loadExportPreference() {
+        Preference exportPref = findPreference(PREFERENCE_EXPORT_NOTES_KEY);
+        if (exportPref != null) {
+            exportPref.setOnPreferenceClickListener(preference -> {
+                exportNotes();
+                return true;
+            });
+        }
+    }
+
+    private void exportNotes() {
+        net.micode.notes.tool.BackupUtils backupUtils = net.micode.notes.tool.BackupUtils.getInstance(getContext());
+        int state = backupUtils.exportToText();
+        String message;
+        switch (state) {
+            case net.micode.notes.tool.BackupUtils.STATE_SUCCESS:
+                message = getString(R.string.success_sdcard_export) + ": " + backupUtils.getExportedTextFileDir() + backupUtils.getExportedTextFileName();
+                break;
+            case net.micode.notes.tool.BackupUtils.STATE_SD_CARD_UNMOUONTED:
+                message = getString(R.string.error_sdcard_unmounted);
+                break;
+            case net.micode.notes.tool.BackupUtils.STATE_SYSTEM_ERROR:
+            default:
+                message = getString(R.string.error_sdcard_export);
+                break;
+        }
+        Toast.makeText(getContext(), message, Toast.LENGTH_LONG).show();
+    }
+
     private void loadCapsulePreference() {
         SwitchPreferenceCompat capsulePref = findPreference(PREFERENCE_CAPSULE_ENABLE);
         if (capsulePref != null) {
@@ -183,21 +255,6 @@ public class SettingsFragment extends PreferenceFragmentCompat {
         }
     }
 
-    private void loadAccountPreference() {
-        androidx.preference.PreferenceCategory accountCategory = findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);
-        if (accountCategory != null) {
-            accountCategory.removeAll();
-            Preference accountPref = new Preference(getContext());
-            accountPref.setTitle(getString(R.string.preferences_account_title));
-            accountPref.setSummary(getString(R.string.preferences_account_summary));
-            accountPref.setOnPreferenceClickListener(preference -> {
-                Toast.makeText(getActivity(), "Google Tasks同步功能已禁用", Toast.LENGTH_SHORT).show();
-                return true;
-            });
-            accountCategory.addPreference(accountPref);
-        }
-    }
-
     private void showSetPasswordDialog() {
         new AlertDialog.Builder(getActivity())
                 .setTitle("设置密码")

src/Notesmaster/app/src/main/java/net/micode/notes/ui/SidebarFragment.java

@@ -72,8 +72,8 @@ public class SidebarFragment extends Fragment {
     private LinearLayout menuExport;
     private LinearLayout menuSettings;
     private LinearLayout menuCapsule;
-    private LinearLayout menuLogin;
     private LinearLayout menuLogout;
+    private View logoutDivider;
 
     // 文件夹树
     private LinearLayout folderTreeContainer;
@@ -173,8 +173,8 @@ public class SidebarFragment extends Fragment {
         menuExport = view.findViewById(R.id.menu_export);
         menuSettings = view.findViewById(R.id.menu_settings);
         menuCapsule = view.findViewById(R.id.menu_capsule);
-        menuLogin = view.findViewById(R.id.menu_login);
         menuLogout = view.findViewById(R.id.menu_logout);
+        logoutDivider = view.findViewById(R.id.logout_divider);
 
         // 文件夹树
         folderTreeContainer = view.findViewById(R.id.folder_tree_container);
@@ -249,13 +249,6 @@ public class SidebarFragment extends Fragment {
             });
         }
 
-        menuLogin.setOnClickListener(v -> {
-            if (listener != null) {
-                listener.onLoginSelected();
-                listener.onCloseSidebar();
-            }
-        });
-
         menuLogout.setOnClickListener(v -> showLogoutConfirmDialog());
     }
 
@@ -323,10 +316,12 @@ public class SidebarFragment extends Fragment {
         }
 
         // 更新菜单项
-        if (menuLogin != null && menuLogout != null) {
-            menuLogin.setVisibility(isLoggedIn ? View.GONE : View.VISIBLE);
+        if (menuLogout != null) {
             menuLogout.setVisibility(isLoggedIn ? View.VISIBLE : View.GONE);
         }
+        if (logoutDivider != null) {
+            logoutDivider.setVisibility(isLoggedIn ? View.VISIBLE : View.GONE);
+        }
     }
 
     private void showLogoutConfirmDialog() {

src/Notesmaster/app/src/main/java/net/micode/notes/ui/SyncActivity.java

@@ -42,7 +42,7 @@ import java.util.Locale;
  * 显示云同步设置，包括登录状态、同步开关、同步按钮和进度显示。
  * </p>
  */
-public class SyncActivity extends AppCompatActivity {
+public class SyncActivity extends BaseActivity {
 
     private static final String PREFS_SYNC = "sync_settings";
     private static final String KEY_AUTO_SYNC = "auto_sync";

src/Notesmaster/app/src/main/java/net/micode/notes/ui/TaskEditActivity.java

@@ -24,7 +24,7 @@ import net.micode.notes.model.Task;
 
 import java.util.Calendar;
 
-public class TaskEditActivity extends AppCompatActivity {
+public class TaskEditActivity extends BaseActivity {
 
     private EditText contentEdit;
     private ImageView alarmBtn;

src/Notesmaster/app/src/main/java/net/micode/notes/ui/TaskListActivity.java

@@ -22,7 +22,7 @@ import net.micode.notes.model.Task;
 import java.util.ArrayList;
 import java.util.List;
 
-public class TaskListActivity extends AppCompatActivity implements TaskListAdapter.OnTaskItemClickListener {
+public class TaskListActivity extends BaseActivity implements TaskListAdapter.OnTaskItemClickListener {
 
     private RecyclerView recyclerView;
     private TaskListAdapter adapter;

src/Notesmaster/app/src/main/java/net/micode/notes/viewmodel/NotesListViewModel.java

@@ -16,11 +16,15 @@
 
 package net.micode.notes.viewmodel;
 
+import android.app.Application;
 import android.util.Log;
 
+import androidx.annotation.NonNull;
+import androidx.lifecycle.AndroidViewModel;
 import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.ViewModel;
 
+import net.micode.notes.R;
 import net.micode.notes.data.Notes;
 import net.micode.notes.data.NotesRepository;
 
@@ -38,7 +42,7 @@ import java.util.List;
  * @see NotesRepository
  * @see net.micode.notes.model.Note
  */
-public class NotesListViewModel extends ViewModel {
+public class NotesListViewModel extends AndroidViewModel {
     private static final String TAG = "NotesListViewModel";
 
     private final NotesRepository repository;
@@ -80,9 +84,11 @@ public class NotesListViewModel extends ViewModel {
     /**
      * 构造函数
      *
+     * @param application 应用程序上下文
      * @param repository 笔记数据仓库
      */
-    public NotesListViewModel(NotesRepository repository) {
+    public NotesListViewModel(@NonNull Application application, NotesRepository repository) {
+        super(application);
         this.repository = repository;
         Log.d(TAG, "ViewModel created");
     }
@@ -185,7 +191,7 @@ public class NotesListViewModel extends ViewModel {
                         // 1. "All" / "All Templates" Folder (Virtual)
                         NotesRepository.NoteInfo allFolder = new NotesRepository.NoteInfo();
                         allFolder.setId(templateMode ? Notes.ID_TEMPLATE_FOLDER : Notes.ID_ALL_NOTES_FOLDER);
-                        allFolder.snippet = templateMode ? "所有模板" : "所有"; // Name
+                        allFolder.snippet = getApplication().getString(templateMode ? R.string.folder_all_templates : R.string.folder_all); // Name
                         displayFolders.add(allFolder);
                         
                         // 2. Real Folders (from DB)
@@ -197,7 +203,7 @@ public class NotesListViewModel extends ViewModel {
                         if (!templateMode) {
                             NotesRepository.NoteInfo uncategorizedFolder = new NotesRepository.NoteInfo();
                             uncategorizedFolder.setId(Notes.ID_ROOT_FOLDER);
-                            uncategorizedFolder.snippet = "未分类"; // Custom Name for Root
+                            uncategorizedFolder.snippet = getApplication().getString(R.string.folder_uncategorized); // Custom Name for Root
                             displayFolders.add(uncategorizedFolder);
                         }
 
@@ -936,6 +942,26 @@ public class NotesListViewModel extends ViewModel {
         });
     }
 
+    /**
+     * 获取单个笔记的详细信息
+     *
+     * @param noteId 笔记ID
+     * @param callback 回调接口
+     */
+    public void getNoteInfo(long noteId, NotesRepository.Callback<NotesRepository.NoteInfo> callback) {
+        repository.getNoteInfo(noteId, callback);
+    }
+
+    /**
+     * 获取单个笔记的完整内容
+     *
+     * @param noteId 笔记ID
+     * @param callback 回调接口
+     */
+    public void getNoteContent(long noteId, NotesRepository.Callback<String> callback) {
+        repository.getNoteContent(noteId, callback);
+    }
+
     /**
      * 获取文件夹信息
      * <p>

src/Notesmaster/app/src/main/res/layout/activity_home.xml

@@ -77,7 +77,7 @@
                 android:gravity="center_vertical"
                 android:paddingStart="16dp"
                 android:paddingEnd="16dp"
-                android:text="Search notes"
+                android:text="@string/search_hint"
                 android:textColor="#9E9E9E"
                 android:textSize="16sp" />
 
@@ -196,6 +196,7 @@
             
             <TextView android:id="@+id/btn_action_hide" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="隐藏" android:drawableTop="@android:drawable/ic_menu_close_clear_cancel" android:gravity="center" android:visibility="gone"/>
             <TextView android:id="@+id/btn_action_pin" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="置顶" android:drawableTop="@android:drawable/ic_menu_upload" android:gravity="center"/>
+            <TextView android:id="@+id/btn_action_export" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="导出" android:drawableTop="@android:drawable/ic_menu_save" android:gravity="center"/>
             <TextView android:id="@+id/btn_action_move" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="移动到" android:drawableTop="@drawable/ic_folder" android:gravity="center"/>
             <TextView android:id="@+id/btn_action_lock" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="加锁" android:drawableTop="@android:drawable/ic_lock_lock" android:gravity="center"/>
             <TextView android:id="@+id/btn_action_delete" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:text="删除" android:drawableTop="@android:drawable/ic_menu_delete" android:gravity="center"/>

src/Notesmaster/app/src/main/res/layout/add_account_text.xml

@@ -1,32 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:minHeight="50dip"
-    android:gravity="center_vertical"
-    android:orientation="vertical">
-
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:textAppearance="?android:attr/textAppearanceMedium"
-        android:text="@string/preferences_add_account" />
-</LinearLayout>

src/Notesmaster/app/src/main/res/layout/fragment_sidebar.xml

@@ -303,65 +303,46 @@
 
             </LinearLayout>
 
-            <!-- 登录 -->
-            <LinearLayout
-                android:id="@+id/menu_login"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal"
-                android:gravity="center_vertical"
-                android:paddingHorizontal="16dp"
-                android:paddingVertical="12dp"
-                android:background="?attr/selectableItemBackground">
-
-                <ImageView
-                    android:layout_width="24dp"
-                    android:layout_height="24dp"
-                    android:src="@drawable/ic_login"
-                    app:tint="?attr/colorOnSurfaceVariant" />
-
-                <TextView
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_weight="1"
-                    android:layout_marginStart="16dp"
-                    android:text="@string/drawer_login"
-                    android:textSize="14sp"
-                    android:textColor="?attr/colorOnSurface" />
-
             </LinearLayout>
 
-            <!-- 退出登录（默认隐藏）-->
-            <LinearLayout
-                android:id="@+id/menu_logout"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal"
-                android:gravity="center_vertical"
-                android:paddingHorizontal="16dp"
-                android:paddingVertical="12dp"
-                android:background="?attr/selectableItemBackground"
-                android:visibility="gone">
-
-                <ImageView
-                    android:layout_width="24dp"
-                    android:layout_height="24dp"
-                    android:src="@drawable/ic_logout"
-                    app:tint="?attr/colorOnSurfaceVariant" />
-
-                <TextView
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_weight="1"
-                    android:layout_marginStart="16dp"
-                    android:text="@string/drawer_logout"
-                    android:textSize="14sp"
-                    android:textColor="?attr/colorOnSurface" />
-
-            </LinearLayout>
+        </androidx.core.widget.NestedScrollView>
 
-        </LinearLayout>
+    <!-- 分隔线 -->
+    <View
+        android:id="@+id/logout_divider"
+        android:layout_width="match_parent"
+        android:layout_height="1dp"
+        android:background="?attr/colorOutlineVariant"
+        android:layout_marginHorizontal="16dp"
+        android:visibility="gone" />
+
+    <!-- 退出登录（固定底部）-->
+    <LinearLayout
+        android:id="@+id/menu_logout"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_vertical"
+        android:paddingHorizontal="16dp"
+        android:paddingVertical="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:visibility="gone">
+
+        <ImageView
+            android:layout_width="24dp"
+            android:layout_height="24dp"
+            android:src="@drawable/ic_logout"
+            app:tint="?attr/colorError" />
+
+        <TextView
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:layout_marginStart="16dp"
+            android:text="@string/drawer_logout"
+            android:textSize="14sp"
+            android:textColor="?attr/colorError" />
 
-    </androidx.core.widget.NestedScrollView>
+    </LinearLayout>
 
 </LinearLayout>

src/Notesmaster/app/src/main/res/menu/note_edit.xml

@@ -71,6 +71,10 @@
         android:id="@+id/menu_share"
         android:title="@string/menu_share"/>
 
+    <item
+        android:id="@+id/menu_export"
+        android:title="导出" />
+
     <item
         android:id="@+id/menu_send_to_desktop"
         android:title="@string/menu_send_to_desktop"/>

src/Notesmaster/app/src/main/res/values-zh-rCN/strings.xml

@@ -1,25 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-
-<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="app_name">便签</string>
-    <string name="app_widget2x2">便签2x2</string>
-    <string name="app_widget4x4">便签4x4</string>
+    <string name="app_widget2x2">便签 2x2</string>
+    <string name="app_widget4x4">便签 4x4</string>
     <string name="widget_havenot_content">没有关联内容，点击新建便签。</string>
     <string name="widget_under_visit_mode">访客模式下，便签内容不可见</string>
     <string name="notelist_string_info">...</string>
@@ -35,7 +19,13 @@
     <string name="note_link_email">发送邮件</string>
     <string name="note_link_web">浏览网页</string>
     <string name="note_link_other">打开地图</string>
-    <!-- note list string -->
+    <string name="note_link_time">创建闹钟</string>
+    <string name="note_link_geo">查看地图</string>
+    <!-- Text export file information -->
+    <string name="file_path" translatable="false">/MIUI/notes/</string>
+    <string name="file_name_txt_format" translatable="false">notes_%s.txt</string>
+    <!-- notes list string -->
+    <string name="format_folder_files_count" translatable="false">(%d)</string>
     <string name="menu_create_folder">新建文件夹</string>
     <string name="menu_export_text">导出文本</string>
     <string name="menu_sync">同步</string>
@@ -44,6 +34,7 @@
     <string name="menu_search">搜索</string>
     <string name="menu_delete">删除</string>
     <string name="menu_move">移动到文件夹</string>
+    <string name="menu_rename">重命名</string>
     <string name="menu_select_title">选中了 %d 项</string>
     <string name="menu_select_none">没有选中项，操作无效</string>
     <string name="menu_select_all">全选</string>
@@ -56,9 +47,17 @@
     <string name="menu_list_mode">进入清单模式</string>
     <string name="menu_normal_mode">退出清单模式</string>
     <string name="menu_folder_view">查看文件夹</string>
-    <string name="menu_folder_delete">刪除文件夹</string>
+    <string name="menu_folder_delete">删除文件夹</string>
     <string name="menu_folder_change_name">修改文件夹名称</string>
     <string name="folder_exist">文件夹 %1$s 已存在，请重新命名</string>
+    <string name="menu_tasks">待办事项</string>
+
+    <!-- Folder operation dialogs -->
+    <string name="dialog_rename_folder_title">重命名文件夹</string>
+    <string name="dialog_delete_folder_title">删除文件夹</string>
+    <string name="dialog_delete_folder_with_notes">删除 \"%1$s\" 及其 %2$d 条笔记?</string>
+    <string name="dialog_delete_folder_empty">删除 \"%1$s\"?</string>
+    <string name="folder_name_hint">文件夹名称</string>
     <string name="menu_share">分享</string>
     <string name="menu_send_to_desktop">发送到桌面</string>
     <string name="menu_alert">提醒我</string>
@@ -66,17 +65,19 @@
     <string name="menu_title_select_folder">选择文件夹</string>
     <string name="menu_move_parent_folder">上一级文件夹</string>
     <string name="info_note_enter_desktop">已添加到桌面</string>
-    <string name="alert_title_delete">删除</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="alert_title_delete">删除所选便签</string>
     <string name="alert_message_delete_notes">确认要删除所选的 %d 条便签吗?</string>
     <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>
-    <!-- export text -->
+    <!-- Error information -->
     <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>
     <string name="error_note_not_exist">要查看的便签不存在</string>
     <string name="error_note_empty_for_clock">不能为空便签设置闹钟提醒</string>
     <string name="error_note_empty_for_send_to_desktop">不能将空便签发送到桌面</string>
+    <string name="error_intent_invalid">无效的意图</string>
+    <string name="error_intent_unsupported">不支持的意图操作</string>
     <string name="success_sdcard_export">导出成功</string>
     <string name="failed_sdcard_export">导出失败</string>
     <string name="format_exported_file_location">已将文本文件(%1$s)输出至SD卡(%2$s)目录</string>
@@ -91,28 +92,21 @@
     <string name="error_sync_cancelled">同步已取消</string>
     <string name="sync_progress_login">登录%1$s...</string>
     <string name="sync_progress_init_list">正在获取服务器便签列表...</string>
-    <string name="sync_progress_syncing">正在同步本地便签...</string>
     <!-- Preferences -->
     <string name="preferences_title">设置</string>
-    <string name="preferences_account_title">同步账号</string>
-    <string name="preferences_account_summary">与google task同步便签记录</string>
-    <string name="preferences_last_sync_time">上次同步于 %1$s</string>
-    <string name="preferences_add_account">添加账号</string>
-    <string name="preferences_menu_change_account">更换账号</string>
-    <string name="preferences_menu_remove_account">删除账号</string>
-    <string name="preferences_menu_cancel">取消</string>
+    <string name="preferences_last_sync_time_format" translatable="false">yyyy-MM-dd hh:mm:ss</string>
     <string name="preferences_button_sync_immediately">立即同步</string>
     <string name="preferences_button_sync_cancel">取消同步</string>
-    <string name="preferences_dialog_change_account_title">当前帐号 %1$s</string>
-    <string name="preferences_dialog_change_account_warn_msg">如更换同步帐号，过去的帐号同步信息将被清空，再次切换的同时可能会造成数据重复</string>
-    <string name="preferences_dialog_select_account_title">同步便签</string>
-    <string name="preferences_dialog_select_account_tips">请选择google帐号，便签将与该帐号的google task内容同步。</string>
-    <string name="preferences_toast_cannot_change_account">正在同步中，不能修改同步帐号</string>
-    <string name="preferences_toast_success_set_accout">同步帐号已设置为%1$s</string>
     <string name="preferences_bg_random_appear_title">新建便签背景颜色随机</string>
+    <string name="preferences_language_title">语言</string>
+    <string name="folder_all">所有</string>
+    <string name="folder_all_templates">所有模板</string>
+    <string name="folder_uncategorized">未分类</string>
+
     <string name="button_delete">删除</string>
     <string name="call_record_folder_name">通话便签</string>
     <string name="hint_foler_name">请输入名称</string>
+
     <string name="search_label">正在搜索便签</string>
     <string name="search_hint">搜索便签</string>
     <string name="search_setting_description">便签中的文字</string>
@@ -123,50 +117,115 @@
         <item quantity="other"><xliff:g id="NUMBER">%1$s</xliff:g> 条符合"<xliff:g id="SEARCH">%2$s</xliff:g>"的搜索结果</item>
     </plurals>
 
-    <!-- Sidebar -->
-    <string name="root_folder_name">我的便签</string>
-    <string name="folder_note_count">%d 个便签</string>
-    <string name="dialog_create_folder_title">创建文件夹</string>
-    <string name="dialog_create_folder_hint">文件夹名称</string>
-    <string name="error_folder_name_empty">文件夹名称不能为空</string>
-    <string name="error_folder_name_too_long">文件夹名称过长（最多50个字符）</string>
-    <string name="menu_trash">回收站</string>
-    <string name="create_folder_success">创建文件夹成功</string>
-
-    <string name="menu_undo">撤回</string>
-    <string name="menu_redo">重做</string>
-    <string name="menu_clear_history">清空撤回历史</string>
-    <string name="undo_success">撤回成功</string>
-    <string name="redo_success">重做成功</string>
-    <string name="undo_fail">无可撤回</string>
-    <string name="redo_fail">无可重做</string>
-    <!-- New translations for missing strings -->
-    <string name="menu_rename">重命名</string>
-    <string name="dialog_rename_folder_title">重命名文件夹</string>
-    <string name="dialog_delete_folder_title">删除文件夹</string>
-    <string name="dialog_delete_folder_with_notes">删除 "%1$s" 及其 %2$d 条笔记?</string>
-    <string name="dialog_delete_folder_empty">删除 "%1$s"?</string>
-    <string name="folder_name_hint">文件夹名称</string>
-    <string name="error_intent_invalid">无效的意图</string>
-    <string name="error_intent_unsupported">不支持的意图操作</string>
     <string name="empty_notes_hint">暂无便签，点击右下角按钮创建</string>
     <string name="empty_notes_icon">空便签图标</string>
     <string name="menu_edit_note">编辑便签</string>
+    <!-- Sidebar strings -->
     <string name="menu_login">登录</string>
     <string name="menu_export">导出</string>
+    <string name="menu_templates">模板</string>
     <string name="menu_settings">设置</string>
+    <string name="menu_trash">回收站</string>
+    <string name="root_folder_name">我的便签</string>
     <string name="sidebar_close">关闭侧边栏</string>
     <string name="sidebar_create_folder">创建文件夹</string>
+    <string name="folder_note_count">%d 个便签</string>
+    <string name="dialog_create_folder_title">创建文件夹</string>
+    <string name="dialog_create_folder_hint">文件夹名称</string>
+    <string name="error_folder_name_empty">文件夹名称不能为空</string>
+    <string name="error_folder_name_too_long">文件夹名称过长（最多50个字符）</string>
     <string name="error_folder_name_exists">文件夹已存在</string>
+    <string name="create_folder_success">创建文件夹成功</string>
     <string name="menu_pin">置顶</string>
     <string name="menu_lock">锁定</string>
     <string name="lock_confirmation">确定需要为其上锁？</string>
     <string name="lock_confirm_button">确定</string>
     <string name="lock_cancel_button">再想想</string>
+
     <string name="delete_confirmation">确定要删除选中的便签吗？</string>
     <string name="menu_unpin">取消置顶</string>
     <string name="menu_unlock">解锁</string>
+    
+    <!-- Search related -->
+    <string name="search_no_results">未找到结果</string>
+    <string name="search_history_title">搜索历史</string>
+    <string name="search_history_clear">清空</string>
+
+    <!-- Undo/Redo -->
+    <string name="menu_undo">撤销</string>
+    <string name="menu_redo">重做</string>
+    <string name="menu_clear_history">清空撤销历史</string>
+    <string name="undo_success">撤销成功</string>
+    <string name="redo_success">重做成功</string>
+    <string name="undo_fail">无可撤销内容</string>
+    <string name="redo_fail">无可重做内容</string>
+    <string name="menu_save_as_template">保存为模板</string>
+    <string name="menu_picture">图片</string>
+    <string name="menu_rich_text">富文本</string>
+
+    <!-- Capsule Feature -->
+    <string name="accessibility_service_description">小米便签全局速记服务。开启后请勿开启“无障碍快捷方式”，以免出现多余的系统悬浮按钮。</string>
+    <string name="capsule_permission_alert_window_title">需要悬浮窗权限</string>
+    <string name="capsule_permission_alert_window_message">全局速记胶囊需要悬浮窗权限才能显示在其他应用上层。</string>
+    <string name="capsule_permission_accessibility_title">需要无障碍服务权限</string>
+    <string name="capsule_permission_accessibility_message">全局速记胶囊需要无障碍服务权限来监听剪贴板和获取来源应用。</string>
+    <string name="preferences_capsule_title">全局速记胶囊</string>
+    <string name="preferences_capsule_summary">开启侧边悬浮胶囊，支持跨应用拖拽和剪贴板速记</string>
     <string name="menu_restore">恢复</string>
     <string name="menu_permanent_delete">永久删除</string>
 
+    <!-- Drawer Navigation -->
+    <string name="drawer_login_prompt">点击登录/注册</string>
+    <string name="drawer_default_username">用户</string>
+    <string name="drawer_default_device_id">设备 ID: 未知</string>
+    <string name="drawer_sync_status_synced">已同步</string>
+    <string name="drawer_sync_status_syncing">同步中...</string>
+    <string name="drawer_sync_status_failed">同步失败</string>
+    <string name="drawer_group_notes">笔记</string>
+    <string name="drawer_group_sync">云同步</string>
+    <string name="drawer_group_other">其他</string>
+    <string name="drawer_all_notes">全部笔记</string>
+    <string name="drawer_favorites">收藏</string>
+    <string name="drawer_reminders">提醒</string>
+    <string name="drawer_sync_now">立即同步</string>
+    <string name="drawer_sync_settings">同步设置</string>
+    <string name="drawer_help">帮助与反馈</string>
+    <string name="drawer_login">登录</string>
+    <string name="drawer_logout">退出登录</string>
+
+    <!-- Cloud Sync -->
+    <string name="sync_title">云同步</string>
+    <string name="sync_login_status">登录状态</string>
+    <string name="sync_device_id_default">设备 ID: 未初始化</string>
+    <string name="sync_auto_sync">自动同步</string>
+    <string name="sync_last_time">最后同步时间:</string>
+    <string name="sync_never">从不</string>
+    <string name="sync_status_label">同步状态:</string>
+    <string name="sync_status_idle">空闲</string>
+    <string name="sync_status_syncing">同步中...</string>
+    <string name="sync_status_success">同步成功</string>
+    <string name="sync_status_failed">同步失败</string>
+    <string name="sync_button_now">立即同步</string>
+    <string name="sync_toast_started">同步已开始</string>
+    <string name="sync_toast_success">同步成功完成</string>
+    <string name="sync_toast_failed">同步失败: %1$s</string>
+
+    <!-- Logout -->
+    <string name="dialog_logout_title">退出登录</string>
+    <string name="dialog_logout_message">确定要退出登录吗？退出后本地笔记将保留，但无法同步到云端。</string>
+    <string name="dialog_logout_confirm">退出</string>
+    <string name="toast_logout_success">已退出登录</string>
+
+    <!-- Folder -->
+    <string name="folder_title">文件夹</string>
+    <string name="error_create_folder">创建文件夹失败</string>
+
+    <!-- Conflict Resolution -->
+    <string name="conflict_title">笔记冲突</string>
+    <string name="conflict_local_version">本地版本</string>
+    <string name="conflict_cloud_version">云端版本</string>
+    <string name="conflict_use_local">使用本地</string>
+    <string name="conflict_use_cloud">使用云端</string>
+    <string name="conflict_merge">合并</string>
+    <string name="conflict_merge_hint">合并功能即将推出</string>
 </resources>

src/Notesmaster/app/src/main/res/values-zh-rTW/strings.xml

@@ -1,29 +1,13 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-
-<!-- Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
+<?xml version="1.0" encoding="utf-8"?>
 <resources xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="app_name">便簽</string>
-    <string name="app_widget2x2">便簽2x2</string>
-    <string name="app_widget4x4">便簽4x4</string>
-    <string name="widget_havenot_content">沒有關聯內容，點擊新建便簽。</string>
+    <string name="app_name">便籤</string>
+    <string name="app_widget2x2">便籤 2x2</string>
+    <string name="app_widget4x4">便籤 4x4</string>
+    <string name="widget_havenot_content">沒有關聯內容，點擊新建便籤。</string>
     <string name="widget_under_visit_mode">訪客模式下，便籤內容不可見</string>
     <string name="notelist_string_info">...</string>
-    <string name="notelist_menu_new">新建便簽</string>
+    <string name="notelist_menu_new">新建便籤</string>
     <string name="delete_remind_time_message">成功刪除提醒</string>
     <string name="set_remind_time_message">創建提醒</string>
     <string name="note_alert_expired">已過期</string>
@@ -33,18 +17,24 @@
     <string name="notealert_enter">查看</string>
     <string name="note_link_tel">呼叫電話</string>
     <string name="note_link_email">發送郵件</string>
-    <string name="note_link_web">浏覽網頁</string>
+    <string name="note_link_web">瀏覽網頁</string>
     <string name="note_link_other">打開地圖</string>
-    <string name="format_move_notes_to_folder">已將所選 %1$d 便籤移到 %2$s 文件夾</string>
-    <!-- note list string -->
+    <string name="note_link_time">創建鬧鐘</string>
+    <string name="note_link_geo">查看地圖</string>
+    <!-- Text export file information -->
+    <string name="file_path" translatable="false">/MIUI/notes/</string>
+    <string name="file_name_txt_format" translatable="false">notes_%s.txt</string>
+    <!-- notes list string -->
+    <string name="format_folder_files_count" translatable="false">(%d)</string>
     <string name="menu_create_folder">新建文件夾</string>
     <string name="menu_export_text">導出文本</string>
     <string name="menu_sync">同步</string>
     <string name="menu_sync_cancel">取消同步</string>
     <string name="menu_setting">設置</string>
-    <string name="menu_search">搜尋</string>
+    <string name="menu_search">搜索</string>
     <string name="menu_delete">刪除</string>
     <string name="menu_move">移動到文件夾</string>
+    <string name="menu_rename">重命名</string>
     <string name="menu_select_title">選中了 %d 項</string>
     <string name="menu_select_none">沒有選中項，操作無效</string>
     <string name="menu_select_all">全選</string>
@@ -60,6 +50,14 @@
     <string name="menu_folder_delete">刪除文件夾</string>
     <string name="menu_folder_change_name">修改文件夾名稱</string>
     <string name="folder_exist">文件夾 %1$s 已存在，請重新命名</string>
+    <string name="menu_tasks">待辦事項</string>
+
+    <!-- Folder operation dialogs -->
+    <string name="dialog_rename_folder_title">重命名文件夾</string>
+    <string name="dialog_delete_folder_title">刪除文件夾</string>
+    <string name="dialog_delete_folder_with_notes">刪除 \"%1$s\" 及其 %2$d 條筆記?</string>
+    <string name="dialog_delete_folder_empty">刪除 \"%1$s\"?</string>
+    <string name="folder_name_hint">文件夾名稱</string>
     <string name="menu_share">分享</string>
     <string name="menu_send_to_desktop">發送到桌面</string>
     <string name="menu_alert">提醒我</string>
@@ -67,20 +65,24 @@
     <string name="menu_title_select_folder">選擇文件夾</string>
     <string name="menu_move_parent_folder">上一級文件夾</string>
     <string name="info_note_enter_desktop">已添加到桌面</string>
-    <string name="alert_title_delete">刪除</string>
-    <string name="alert_message_delete_notes">确认要刪除所選的 %d 條便籤嗎?</string>
-    <string name="alert_message_delete_note">确认要删除該條便籤嗎?</string>
-    <string name="alert_message_delete_folder">確認刪除檔夾及所包含的便簽嗎？</string>
+    <string name="alert_message_delete_folder">確認刪除文件夾及所包含的便籤嗎？</string>
+    <string name="alert_title_delete">刪除所選便籤</string>
+    <string name="alert_message_delete_notes">確認要刪除所選的 %d 條便籤嗎?</string>
+    <string name="alert_message_delete_note">確認要刪除該條便籤嗎?</string>
+    <string name="format_move_notes_to_folder">已將所選 %1$d 條便籤移到 %2$s 文件夾</string>
+    <!-- Error information -->
     <string name="error_sdcard_unmounted">SD卡被佔用，不能操作</string>
-    <string name="error_sdcard_export">導出TXT時發生錯誤，請檢查SD卡</string>
+    <string name="error_sdcard_export">導出文本時發生錯誤，請檢查SD卡</string>
     <string name="error_note_not_exist">要查看的便籤不存在</string>
-    <string name="error_note_empty_for_clock">不能爲空便籤設置鬧鐘提醒</string>
+    <string name="error_note_empty_for_clock">不能空便籤設置鬧鐘提醒</string>
     <string name="error_note_empty_for_send_to_desktop">不能將空便籤發送到桌面</string>
+    <string name="error_intent_invalid">無效的意圖</string>
+    <string name="error_intent_unsupported">不支持的意圖操作</string>
     <string name="success_sdcard_export">導出成功</string>
     <string name="failed_sdcard_export">導出失敗</string>
-    <string name="format_exported_file_location">已將文本文件(%1$s)導出至SD(%2$s)目錄</string>
+    <string name="format_exported_file_location">已將文本文件(%1$s)輸出至SD卡(%2$s)目錄</string>
     <!-- Sync -->
-    <string name="ticker_syncing">同步便簽...</string>
+    <string name="ticker_syncing">同步便籤...</string>
     <string name="ticker_success">同步成功</string>
     <string name="ticker_fail">同步失敗</string>
     <string name="ticker_cancel">同步已取消</string>
@@ -88,27 +90,18 @@
     <string name="error_sync_network">同步失敗，請檢查網絡和帳號設置</string>
     <string name="error_sync_internal">同步失敗，發生內部錯誤</string>
     <string name="error_sync_cancelled">同步已取消</string>
-    <string name="sync_progress_login">登陸%1$s...</string>
+    <string name="sync_progress_login">登錄%1$s...</string>
     <string name="sync_progress_init_list">正在獲取服務器便籤列表...</string>
-    <string name="sync_progress_syncing">正在同步本地便籤...</string>
     <!-- Preferences -->
     <string name="preferences_title">設置</string>
-    <string name="preferences_account_title">同步賬號</string>
-    <string name="preferences_account_summary">与google task同步便簽記錄</string>
-    <string name="preferences_last_sync_time">上次同步于 %1$s</string>
-    <string name="preferences_add_account">添加賬號</string>
-    <string name="preferences_menu_change_account">更換賬號</string>
-    <string name="preferences_menu_remove_account">刪除賬號</string>
-    <string name="preferences_menu_cancel">取消</string>
+    <string name="preferences_last_sync_time_format" translatable="false">yyyy-MM-dd hh:mm:ss</string>
     <string name="preferences_button_sync_immediately">立即同步</string>
     <string name="preferences_button_sync_cancel">取消同步</string>
-    <string name="preferences_dialog_change_account_title">當前帳號 %1$s</string>
-    <string name="preferences_dialog_change_account_warn_msg">如更換同步帳號，過去的帳號同步信息將被清空，再次切換的同時可能會造成數據重復</string>
-    <string name="preferences_dialog_select_account_title">同步便簽</string>
-    <string name="preferences_dialog_select_account_tips">請選擇google帳號，便簽將與該帳號的google task內容同步。</string>
-    <string name="preferences_toast_cannot_change_account">正在同步中，不能修改同步帳號</string>
-    <string name="preferences_toast_success_set_accout">同步帳號已設置為%1$s</string>
     <string name="preferences_bg_random_appear_title">新建便籤背景顏色隨機</string>
+    <string name="preferences_language_title">語言</string>
+    <string name="folder_all">所有</string>
+    <string name="folder_all_templates">所有模板</string>
+    <string name="folder_uncategorized">未分類</string>
 
     <string name="button_delete">刪除</string>
     <string name="call_record_folder_name">通話便籤</string>
@@ -121,46 +114,118 @@
     <string name="datetime_dialog_ok">設置</string>
     <string name="datetime_dialog_cancel">取消</string>
     <plurals name="search_results_title">
-        <item quantity="other"><xliff:g id="NUMBER">%1$s</xliff:g> 條符合"<xliff:g id="SEARCH">%2$s</xliff:g>"的搜尋結果</item>
+        <item quantity="other"><xliff:g id="NUMBER">%1$s</xliff:g> 條符合"<xliff:g id="SEARCH">%2$s</xliff:g>"的搜索結果</item>
     </plurals>
 
-    <!-- Sidebar -->
-    <string name="root_folder_name">我的便籤</string>
-    <string name="folder_note_count">%d 個便籤</string>
-    <string name="dialog_create_folder_title">創建文件夾</string>
-    <string name="dialog_create_folder_hint">文件夾名稱</string>
-    <string name="error_folder_name_empty">文件夾名稱不能為空</string>
-    <string name="error_folder_name_too_long">文件夾名稱過長（最多50個字符）</string>
-    <string name="menu_trash">回收站</string>
-    <string name="create_folder_success">創建文件夾成功</string>
-
-    <!-- New translations for missing strings -->
-    <string name="menu_rename">重命名</string>
-    <string name="dialog_rename_folder_title">重命名文件夾</string>
-    <string name="dialog_delete_folder_title">刪除文件夾</string>
-    <string name="dialog_delete_folder_with_notes">刪除 "%1$s" 及其 %2$d 條筆記?</string>
-    <string name="dialog_delete_folder_empty">刪除 "%1$s"?</string>
-    <string name="folder_name_hint">文件夾名稱</string>
-    <string name="error_intent_invalid">無效的意圖</string>
-    <string name="error_intent_unsupported">不支持的意圖操作</string>
     <string name="empty_notes_hint">暫無便籤，點擊右下角按鈕創建</string>
     <string name="empty_notes_icon">空便籤圖標</string>
     <string name="menu_edit_note">編輯便籤</string>
+    <!-- Sidebar strings -->
     <string name="menu_login">登錄</string>
     <string name="menu_export">導出</string>
+    <string name="menu_templates">模板</string>
     <string name="menu_settings">設置</string>
+    <string name="menu_trash">回收站</string>
+    <string name="root_folder_name">我的便籤</string>
     <string name="sidebar_close">關閉側邊欄</string>
     <string name="sidebar_create_folder">創建文件夾</string>
+    <string name="folder_note_count">%d 個便籤</string>
+    <string name="dialog_create_folder_title">創建文件夾</string>
+    <string name="dialog_create_folder_hint">文件夾名稱</string>
+    <string name="error_folder_name_empty">文件夾名稱不能為空</string>
+    <string name="error_folder_name_too_long">文件夾名稱過長（最多50個字符）</string>
     <string name="error_folder_name_exists">文件夾已存在</string>
+    <string name="create_folder_success">創建文件夾成功</string>
     <string name="menu_pin">置頂</string>
     <string name="menu_lock">鎖定</string>
     <string name="lock_confirmation">確定需要為其上鎖？</string>
     <string name="lock_confirm_button">確定</string>
     <string name="lock_cancel_button">再想想</string>
+
     <string name="delete_confirmation">確定要刪除選中的便籤嗎？</string>
     <string name="menu_unpin">取消置頂</string>
     <string name="menu_unlock">解鎖</string>
+    
+    <!-- Search related -->
+    <string name="search_no_results">未找到結果</string>
+    <string name="search_history_title">搜索歷史</string>
+    <string name="search_history_clear">清空</string>
+
+    <!-- Undo/Redo -->
+    <string name="menu_undo">撤銷</string>
+    <string name="menu_redo">重做</string>
+    <string name="menu_clear_history">清空撤銷歷史</string>
+    <string name="undo_success">撤銷成功</string>
+    <string name="redo_success">重做成功</string>
+    <string name="undo_fail">無可撤銷內容</string>
+    <string name="redo_fail">無可重做內容</string>
+    <string name="menu_save_as_template">保存為模板</string>
+    <string name="menu_picture">圖片</string>
+    <string name="menu_rich_text">富文本</string>
+
+    <!-- Capsule Feature -->
+    <string name="accessibility_service_description">小米便籤全局速記服務。開啟後請勿開啟“無障礙快捷方式”，以免出現多餘的系統懸浮按鈕。</string>
+    <string name="capsule_permission_alert_window_title">需要懸浮窗權限</string>
+    <string name="capsule_permission_alert_window_message">全局速記膠囊需要懸浮窗權限才能顯示在其他應用上層。</string>
+    <string name="capsule_permission_accessibility_title">需要無障礙服務權限</string>
+    <string name="capsule_permission_accessibility_message">全局速记胶囊需要无障碍服务权限来监听剪贴板和获取来源应用。</string>
+    <string name="preferences_capsule_title">全局速記膠囊</string>
+    <string name="preferences_capsule_summary">開啟側邊懸浮膠囊，支持跨應用拖拽和剪貼板速記</string>
     <string name="menu_restore">恢復</string>
     <string name="menu_permanent_delete">永久刪除</string>
 
+    <!-- Drawer Navigation -->
+    <string name="drawer_login_prompt">點擊登錄/註冊</string>
+    <string name="drawer_default_username">用戶</string>
+    <string name="drawer_default_device_id">設備 ID: 未知</string>
+    <string name="drawer_sync_status_synced">已同步</string>
+    <string name="drawer_sync_status_syncing">同步中...</string>
+    <string name="drawer_sync_status_failed">同步失敗</string>
+    <string name="drawer_group_notes">筆記</string>
+    <string name="drawer_group_sync">雲同步</string>
+    <string name="drawer_group_other">其他</string>
+    <string name="drawer_all_notes">全部筆記</string>
+    <string name="drawer_favorites">收藏</string>
+    <string name="drawer_reminders">提醒</string>
+    <string name="drawer_sync_now">立即同步</string>
+    <string name="drawer_sync_settings">同步設置</string>
+    <string name="drawer_help">幫助與反饋</string>
+    <string name="drawer_login">登錄</string>
+    <string name="drawer_logout">退出登錄</string>
+
+    <!-- Cloud Sync -->
+    <string name="sync_title">雲同步</string>
+    <string name="sync_login_status">登錄狀態</string>
+    <string name="sync_device_id_default">設備 ID: 未初始化</string>
+    <string name="sync_auto_sync">自動同步</string>
+    <string name="sync_last_time">最後同步時間:</string>
+    <string name="sync_never">從不</string>
+    <string name="sync_status_label">同步狀態:</string>
+    <string name="sync_status_idle">空閒</string>
+    <string name="sync_status_syncing">同步中...</string>
+    <string name="sync_status_success">同步成功</string>
+    <string name="sync_status_failed">同步失敗</string>
+    <string name="sync_button_now">立即同步</string>
+    <string name="sync_toast_started">同步已開始</string>
+    <string name="sync_toast_success">同步成功完成</string>
+    <string name="sync_toast_failed">同步失敗: %1$s</string>
+
+    <!-- Logout -->
+    <string name="dialog_logout_title">退出登錄</string>
+    <string name="dialog_logout_message">確定要退出登錄嗎？退出後本地筆記將保留，但無法同步到雲端。</string>
+    <string name="dialog_logout_confirm">退出</string>
+    <string name="toast_logout_success">已退出登錄</string>
+
+    <!-- Folder -->
+    <string name="folder_title">文件夾</string>
+    <string name="error_create_folder">創建文件夾失敗</string>
+
+    <!-- Conflict Resolution -->
+    <string name="conflict_title">筆記衝突</string>
+    <string name="conflict_local_version">本地版本</string>
+    <string name="conflict_cloud_version">雲端版本</string>
+    <string name="conflict_use_local">使用本地</string>
+    <string name="conflict_use_cloud">使用雲端</string>
+    <string name="conflict_merge">合併</string>
+    <string name="conflict_merge_hint">合併功能即將推出</string>
 </resources>

src/Notesmaster/app/src/main/res/values/arrays.xml

@@ -40,4 +40,32 @@
         <item>light</item>
         <item>dark</item>
     </string-array>
+
+    <string-array name="font_size_entries">
+        <item>@string/menu_font_small</item>
+        <item>@string/menu_font_normal</item>
+        <item>@string/menu_font_large</item>
+        <item>@string/menu_font_super</item>
+    </string-array>
+
+    <string-array name="font_size_values">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+        <item>3</item>
+    </string-array>
+
+    <string-array name="language_entries">
+        <item>简体中文</item>
+        <item>繁體中文</item>
+        <item>English</item>
+        <item>System Default</item>
+    </string-array>
+
+    <string-array name="language_values">
+        <item>zh-CN</item>
+        <item>zh-TW</item>
+        <item>en</item>
+        <item>system</item>
+    </string-array>
 </resources>

src/Notesmaster/app/src/main/res/values/strings.xml

@@ -108,26 +108,16 @@
     <string name="error_sync_cancelled">Sync is canceled</string>
     <string name="sync_progress_login">Logging into %1$s...</string>
     <string name="sync_progress_init_list">Getting remote note list...</string>
-    <string name="sync_progress_syncing">Synchronize local notes with Google Task...</string>
     <!-- Preferences -->
     <string name="preferences_title">Settings</string>
-    <string name="preferences_account_title">Sync account</string>
-    <string name="preferences_account_summary">Sync notes with google task</string>
-    <string name="preferences_last_sync_time">Last sync time %1$s</string>
     <string name="preferences_last_sync_time_format" translatable="false">yyyy-MM-dd hh:mm:ss</string>
-    <string name="preferences_add_account">Add account</string>
-    <string name="preferences_menu_change_account">Change sync account</string>
-    <string name="preferences_menu_remove_account">Remove sync account</string>
-    <string name="preferences_menu_cancel">Cancel</string>
     <string name="preferences_button_sync_immediately">Sync immediately</string>
     <string name="preferences_button_sync_cancel">Cancel syncing</string>
-    <string name="preferences_dialog_change_account_title">Current account %1$s</string>
-    <string name="preferences_dialog_change_account_warn_msg">All sync related information will be deleted, which may result in duplicated items sometime</string>
-    <string name="preferences_dialog_select_account_title">Sync notes</string>
-    <string name="preferences_dialog_select_account_tips">Please select a google account. Local notes will be synced with google task.</string>
-    <string name="preferences_toast_cannot_change_account">Cannot change the account because sync is in progress</string>
-    <string name="preferences_toast_success_set_accout">%1$s has been set as the sync account</string>
     <string name="preferences_bg_random_appear_title">New note background color random</string>
+    <string name="preferences_language_title">Language</string>
+    <string name="folder_all">All</string>
+    <string name="folder_all_templates">All Templates</string>
+    <string name="folder_uncategorized">Uncategorized</string>
 
     <string name="button_delete">Delete</string>
     <string name="call_record_folder_name">Call notes</string>

src/Notesmaster/app/src/main/res/xml/file_paths.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <external-path name="external_files" path="." />
+    <cache-path name="cache_files" path="." />
+</paths>

src/Notesmaster/app/src/main/res/xml/preferences.xml

@@ -6,6 +6,25 @@
             android:entries="@array/theme_entries"
             android:entryValues="@array/theme_values"
             android:defaultValue="system" />
+            
+        <ListPreference
+            android:key="pref_font_size"
+            android:title="@string/menu_font_size"
+            android:entries="@array/font_size_entries"
+            android:entryValues="@array/font_size_values"
+            android:defaultValue="1" />
+
+        <SwitchPreferenceCompat
+            android:key="pref_key_bg_random_appear"
+            android:title="@string/preferences_bg_random_appear_title"
+            android:defaultValue="false" />
+            
+        <ListPreference
+            android:key="pref_language"
+            android:title="@string/preferences_language_title"
+            android:entries="@array/language_entries"
+            android:entryValues="@array/language_values"
+            android:defaultValue="zh-CN" />
     </PreferenceCategory>
 
     <PreferenceCategory android:title="安全">
@@ -23,14 +42,21 @@
             android:defaultValue="false" />
     </PreferenceCategory>
 
-    <PreferenceCategory android:title="云同步"
-        android:key="pref_sync_account_key">
-        <!-- 账户信息将由代码动态插入 -->
+    <PreferenceCategory android:title="数据管理">
+        <Preference
+            android:key="pref_key_cloud_sync"
+            android:title="@string/sync_title"
+            android:summary="@string/sync_auto_sync" />
+            
+        <Preference
+            android:key="pref_key_export_notes"
+            android:title="@string/menu_export_text"
+            android:summary="将笔记导出为文本文件保存到存储卡" />
     </PreferenceCategory>
 
     <PreferenceCategory android:title="关于">
         <Preference
             android:title="版本"
-            android:summary="1.0.0" />
+            android:summary="1.1.0" />
     </PreferenceCategory>
 </PreferenceScreen>