commit 7b5bfdb1a208756674033024bde9dfebf8586302 Author: chengshuaishuai <2087761457@qq.com> Date: Wed May 14 02:01:06 2025 +0800 first test diff --git a/doc/小米便签开源代码的泛读报告.docx b/doc/小米便签开源代码的泛读报告.docx new file mode 100644 index 0000000..cb4e9ca Binary files /dev/null and b/doc/小米便签开源代码的泛读报告.docx differ diff --git a/src/tool/BackupUtils.java b/src/tool/BackupUtils.java new file mode 100644 index 0000000..dcdbd87 --- /dev/null +++ b/src/tool/BackupUtils.java @@ -0,0 +1,394 @@ +/* + * 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. + */ + +package net.micode.notes.tool; + +import android.content.Context; +import android.database.Cursor; +import android.os.Environment; +import android.text.TextUtils; +import android.text.format.DateFormat; +import android.util.Log; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.DataConstants; +import net.micode.notes.data.Notes.NoteColumns; + +import java.io.File; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.PrintStream; + +/** + * 备份工具类，用于将笔记导出为文本格式进行备份 + */ +public class BackupUtils { + private static final String TAG = "BackupUtils"; + // 单例模式实现 + private static BackupUtils sInstance; + + /** + * 获取 BackupUtils 实例（单例） + * @param context 应用上下文 + * @return BackupUtils 实例 + */ + public static synchronized BackupUtils getInstance(Context context) { + if (sInstance == null) { + sInstance = new BackupUtils(context); + } + return sInstance; + } + + /** + * 以下状态码表示备份或恢复操作的状态 + */ + // 当前SD卡未挂载 + public static final int STATE_SD_CARD_UNMOUONTED = 0; + // 备份文件不存在 + public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; + // 数据格式损坏，可能被其他程序修改 + public static final int STATE_DATA_DESTROIED = 2; + // 运行时异常导致备份或恢复失败 + public static final int STATE_SYSTEM_ERROR = 3; + // 备份或恢复成功 + public static final int STATE_SUCCESS = 4; + + private TextExport mTextExport; + + private BackupUtils(Context context) { + mTextExport = new TextExport(context); + } + + /** + * 检查外部存储是否可用 + * @return 可用返回true，否则返回false + */ + private static boolean externalStorageAvailable() { + return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); + } + + /** + * 导出笔记为文本格式 + * @return 备份状态码 + */ + public int exportToText() { + return mTextExport.exportToText(); + } + + /** + * 获取导出的文本文件名 + * @return 文件名 + */ + public String getExportedTextFileName() { + return mTextExport.mFileName; + } + + /** + * 获取导出的文本文件目录 + * @return 文件目录 + */ + public String getExportedTextFileDir() { + return mTextExport.mFileDirectory; + } + + /** + * 内部类：文本导出工具 + */ + private static class TextExport { + // 笔记查询投影，指定要查询的列 + private static final String[] NOTE_PROJECTION = { + NoteColumns.ID, // 笔记ID + NoteColumns.MODIFIED_DATE, // 修改日期 + NoteColumns.SNIPPET, // 摘要 + NoteColumns.TYPE // 类型 + }; + + // 笔记列索引 + private static final int NOTE_COLUMN_ID = 0; + private static final int NOTE_COLUMN_MODIFIED_DATE = 1; + private static final int NOTE_COLUMN_SNIPPET = 2; + + // 数据查询投影，指定要查询的数据列 + private static final String[] DATA_PROJECTION = { + DataColumns.CONTENT, // 内容 + DataColumns.MIME_TYPE, // MIME类型 + DataColumns.DATA1, // 数据1 + DataColumns.DATA2, // 数据2 + DataColumns.DATA3, // 数据3 + DataColumns.DATA4, // 数据4 + }; + + // 数据列索引 + private static final int DATA_COLUMN_CONTENT = 0; + private static final int DATA_COLUMN_MIME_TYPE = 1; + private static final int DATA_COLUMN_CALL_DATE = 2; + private static final int DATA_COLUMN_PHONE_NUMBER = 4; + + // 文本格式数组，用于格式化导出内容 + private final String [] TEXT_FORMAT; + private static final int FORMAT_FOLDER_NAME = 0; // 文件夹名称格式 + private static final int FORMAT_NOTE_DATE = 1; // 笔记日期格式 + private static final int FORMAT_NOTE_CONTENT = 2; // 笔记内容格式 + + private Context mContext; + private String mFileName; // 导出的文件名 + private String mFileDirectory; // 导出的文件目录 + + public TextExport(Context context) { + // 从资源中获取文本格式数组 + TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); + mContext = context; + mFileName = ""; + mFileDirectory = ""; + } + + /** + * 获取指定ID的格式字符串 + * @param id 格式ID + * @return 格式字符串 + */ + private String getFormat(int id) { + return TEXT_FORMAT[id]; + } + + /** + * 将指定文件夹ID的笔记导出为文本 + * @param folderId 文件夹ID + * @param ps 输出流 + */ + private void exportFolderToText(String folderId, PrintStream ps) { + // 查询属于该文件夹的所有笔记 + Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { + folderId + }, null); + + if (notesCursor != null) { + if (notesCursor.moveToFirst()) { + do { + // 打印笔记的最后修改日期 + ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( + mContext.getString(R.string.format_datetime_mdhm), + notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); + // 查询属于该笔记的数据 + String noteId = notesCursor.getString(NOTE_COLUMN_ID); + exportNoteToText(noteId, ps); + } while (notesCursor.moveToNext()); + } + notesCursor.close(); + } + } + + /** + * 将指定ID的笔记导出到输出流 + * @param noteId 笔记ID + * @param ps 输出流 + */ + private void exportNoteToText(String noteId, PrintStream ps) { + // 查询属于该笔记的所有数据（内容、类型等） + Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, + DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { + noteId + }, null); + + if (dataCursor != null) { + if (dataCursor.moveToFirst()) { + do { + String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); + if (DataConstants.CALL_NOTE.equals(mimeType)) { + // 处理通话记录类型的笔记 + // 打印电话号码 + String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); + long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); + String location = dataCursor.getString(DATA_COLUMN_CONTENT); + + if (!TextUtils.isEmpty(phoneNumber)) { + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), + phoneNumber)); + } + // 打印通话日期 + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat + .format(mContext.getString(R.string.format_datetime_mdhm), + callDate))); + // 打印通话附件位置 + if (!TextUtils.isEmpty(location)) { + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), + location)); + } + } else if (DataConstants.NOTE.equals(mimeType)) { + // 处理普通笔记类型 + String content = dataCursor.getString(DATA_COLUMN_CONTENT); + if (!TextUtils.isEmpty(content)) { + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), + content)); + } + } + } while (dataCursor.moveToNext()); + } + dataCursor.close(); + } + // 在笔记之间打印分隔符 + try { + ps.write(new byte[] { + Character.LINE_SEPARATOR, Character.LETTER_NUMBER + }); + } catch (IOException e) { + Log.e(TAG, e.toString()); + } + } + + /** + * 将笔记导出为用户可读的文本格式 + * @return 导出状态码 + */ + public int exportToText() { + // 检查外部存储是否可用 + if (!externalStorageAvailable()) { + Log.d(TAG, "Media was not mounted"); + return STATE_SD_CARD_UNMOUONTED; + } + + // 获取用于导出的打印流 + PrintStream ps = getExportToTextPrintStream(); + if (ps == null) { + Log.e(TAG, "get print stream error"); + return STATE_SYSTEM_ERROR; + } + + // 首先导出文件夹及其包含的笔记 + Cursor folderCursor = mContext.getContentResolver().query( + Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, + "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND " + + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR " + + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null); + + if (folderCursor != null) { + if (folderCursor.moveToFirst()) { + do { + // 打印文件夹名称 + String folderName = ""; + if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { + folderName = mContext.getString(R.string.call_record_folder_name); + } else { + folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET); + } + if (!TextUtils.isEmpty(folderName)) { + ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName)); + } + String folderId = folderCursor.getString(NOTE_COLUMN_ID); + exportFolderToText(folderId, ps); + } while (folderCursor.moveToNext()); + } + folderCursor.close(); + } + + // 导出根文件夹中的笔记 + Cursor noteCursor = mContext.getContentResolver().query( + Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, + NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID + + "=0", null, null); + + if (noteCursor != null) { + if (noteCursor.moveToFirst()) { + do { + ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( + mContext.getString(R.string.format_datetime_mdhm), + noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); + // 查询属于该笔记的数据 + String noteId = noteCursor.getString(NOTE_COLUMN_ID); + exportNoteToText(noteId, ps); + } while (noteCursor.moveToNext()); + } + noteCursor.close(); + } + ps.close(); + + return STATE_SUCCESS; + } + + /** + * 获取指向导出文本文件的打印流 + * @return 打印流，如果出错则返回null + */ + private PrintStream getExportToTextPrintStream() { + // 生成存储在SD卡上的文件 + File file = generateFileMountedOnSDcard(mContext, R.string.file_path, + R.string.file_name_txt_format); + if (file == null) { + Log.e(TAG, "create file to exported failed"); + return null; + } + mFileName = file.getName(); + mFileDirectory = mContext.getString(R.string.file_path); + PrintStream ps = null; + try { + FileOutputStream fos = new FileOutputStream(file); + ps = new PrintStream(fos); + } catch (FileNotFoundException e) { + e.printStackTrace(); + return null; + } catch (NullPointerException e) { + e.printStackTrace(); + return null; + } + return ps; + } + } + + /** + * 生成存储在SD卡上的文件 + * @param context 应用上下文 + * @param filePathResId 文件路径资源ID + * @param fileNameFormatResId 文件名格式资源ID + * @return 生成的文件，如果出错则返回null + */ + private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { + StringBuilder sb = new StringBuilder(); + // 构建文件路径 + sb.append(Environment.getExternalStorageDirectory()); + sb.append(context.getString(filePathResId)); + File filedir = new File(sb.toString()); + // 构建文件名（包含时间戳） + sb.append(context.getString( + fileNameFormatResId, + DateFormat.format(context.getString(R.string.format_date_ymd), + System.currentTimeMillis()))); + File file = new File(sb.toString()); + + try { + // 确保目录存在 + if (!filedir.exists()) { + filedir.mkdir(); + } + // 确保文件存在 + if (!file.exists()) { + file.createNewFile(); + } + return file; + } catch (SecurityException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } + + return null; + } +} \ No newline at end of file diff --git a/src/tool/DataUtils.java b/src/tool/DataUtils.java new file mode 100644 index 0000000..48e2fe9 --- /dev/null +++ b/src/tool/DataUtils.java @@ -0,0 +1,376 @@ +/* + * 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. + */ + +package net.micode.notes.tool; + +import android.content.ContentProviderOperation; +import android.content.ContentProviderResult; +import android.content.ContentResolver; +import android.content.ContentUris; +import android.content.ContentValues; +import android.content.OperationApplicationException; +import android.database.Cursor; +import android.os.RemoteException; +import android.util.Log; + +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.CallNote; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; + +import java.util.ArrayList; +import java.util.HashSet; + +/** + * 数据工具类，提供笔记数据的增删改查等操作方法 + */ +public class DataUtils { + public static final String TAG = "DataUtils"; + + /** + * 批量删除笔记 + * @param resolver ContentResolver实例，用于访问内容提供者 + * @param ids 要删除的笔记ID集合 + * @return 删除成功返回true，失败返回false + */ + public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { + if (ids == null) { + Log.d(TAG, "the ids is null"); + return true; + } + if (ids.size() == 0) { + Log.d(TAG, "no id is in the hashset"); + return true; + } + + ArrayList operationList = new ArrayList(); + for (long id : ids) { + if(id == Notes.ID_ROOT_FOLDER) { + Log.e(TAG, "Don't delete system folder root"); + continue; + } + ContentProviderOperation.Builder builder = ContentProviderOperation + .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); + operationList.add(builder.build()); + } + try { + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; + } + return true; + } catch (RemoteException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } catch (OperationApplicationException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } + return false; + } + + /** + * 将笔记移动到指定文件夹 + * @param resolver ContentResolver实例 + * @param id 要移动的笔记ID + * @param srcFolderId 源文件夹ID + * @param desFolderId 目标文件夹ID + */ + public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.PARENT_ID, desFolderId); + values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); + values.put(NoteColumns.LOCAL_MODIFIED, 1); + resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); + } + + /** + * 批量将笔记移动到指定文件夹 + * @param resolver ContentResolver实例 + * @param ids 要移动的笔记ID集合 + * @param folderId 目标文件夹ID + * @return 移动成功返回true，失败返回false + */ + public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, + long folderId) { + if (ids == null) { + Log.d(TAG, "the ids is null"); + return true; + } + + ArrayList operationList = new ArrayList(); + for (long id : ids) { + ContentProviderOperation.Builder builder = ContentProviderOperation + .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); + builder.withValue(NoteColumns.PARENT_ID, folderId); + builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); + operationList.add(builder.build()); + } + + try { + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; + } + return true; + } catch (RemoteException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } catch (OperationApplicationException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } + return false; + } + + /** + * 获取用户文件夹数量（不包括系统文件夹） + * @param resolver ContentResolver实例 + * @return 用户文件夹数量 + */ + public static int getUserFolderCount(ContentResolver resolver) { + Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI, + new String[] { "COUNT(*)" }, + NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", + new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)}, + null); + + int count = 0; + if(cursor != null) { + if(cursor.moveToFirst()) { + try { + count = cursor.getInt(0); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "get folder count failed:" + e.toString()); + } finally { + cursor.close(); + } + } + } + return count; + } + + /** + * 检查笔记是否存在于数据库且可见（不在回收站） + * @param resolver ContentResolver实例 + * @param noteId 笔记ID + * @param type 笔记类型 + * @return 存在且可见返回true，否则返回false + */ + public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), + null, + NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, + new String [] {String.valueOf(type)}, + null); + + boolean exist = false; + if (cursor != null) { + if (cursor.getCount() > 0) { + exist = true; + } + cursor.close(); + } + return exist; + } + + /** + * 检查笔记是否存在于数据库 + * @param resolver ContentResolver实例 + * @param noteId 笔记ID + * @return 存在返回true，否则返回false + */ + public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), + null, null, null, null); + + boolean exist = false; + if (cursor != null) { + if (cursor.getCount() > 0) { + exist = true; + } + cursor.close(); + } + return exist; + } + + /** + * 检查数据项是否存在于数据库 + * @param resolver ContentResolver实例 + * @param dataId 数据ID + * @return 存在返回true，否则返回false + */ + public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), + null, null, null, null); + + boolean exist = false; + if (cursor != null) { + if (cursor.getCount() > 0) { + exist = true; + } + cursor.close(); + } + return exist; + } + + /** + * 检查可见文件夹中是否存在指定名称的文件夹 + * @param resolver ContentResolver实例 + * @param name 文件夹名称 + * @return 存在返回true，否则返回false + */ + public static boolean checkVisibleFolderName(ContentResolver resolver, String name) { + Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null, + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + + " AND " + NoteColumns.SNIPPET + "=?", + new String[] { name }, null); + boolean exist = false; + if(cursor != null) { + if(cursor.getCount() > 0) { + exist = true; + } + cursor.close(); + } + return exist; + } + + /** + * 获取指定文件夹下的所有笔记小部件 + * @param resolver ContentResolver实例 + * @param folderId 文件夹ID + * @return 包含小部件属性的集合 + */ + public static HashSet getFolderNoteWidget(ContentResolver resolver, long folderId) { + Cursor c = resolver.query(Notes.CONTENT_NOTE_URI, + new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE }, + NoteColumns.PARENT_ID + "=?", + new String[] { String.valueOf(folderId) }, + null); + + HashSet set = null; + if (c != null) { + if (c.moveToFirst()) { + set = new HashSet(); + do { + try { + AppWidgetAttribute widget = new AppWidgetAttribute(); + widget.widgetId = c.getInt(0); + widget.widgetType = c.getInt(1); + set.add(widget); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, e.toString()); + } + } while (c.moveToNext()); + } + c.close(); + } + return set; + } + + /** + * 根据笔记ID获取通话记录的电话号码 + * @param resolver ContentResolver实例 + * @param noteId 笔记ID + * @return 电话号码，如果不存在则返回空字符串 + */ + public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { + Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, + new String [] { CallNote.PHONE_NUMBER }, + CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", + new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, + null); + + if (cursor != null && cursor.moveToFirst()) { + try { + return cursor.getString(0); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "Get call number fails " + e.toString()); + } finally { + cursor.close(); + } + } + return ""; + } + + /** + * 根据电话号码和通话日期获取通话记录笔记ID + * @param resolver ContentResolver实例 + * @param phoneNumber 电话号码 + * @param callDate 通话日期 + * @return 笔记ID，如果不存在则返回0 + */ + public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) { + Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, + new String [] { CallNote.NOTE_ID }, + CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL(" + + CallNote.PHONE_NUMBER + ",?)", + new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber }, + null); + + if (cursor != null) { + if (cursor.moveToFirst()) { + try { + return cursor.getLong(0); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "Get call note id fails " + e.toString()); + } + } + cursor.close(); + } + return 0; + } + + /** + * 根据笔记ID获取笔记摘要 + * @param resolver ContentResolver实例 + * @param noteId 笔记ID + * @return 笔记摘要 + * @throws IllegalArgumentException 如果笔记不存在 + */ + public static String getSnippetById(ContentResolver resolver, long noteId) { + Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, + new String [] { NoteColumns.SNIPPET }, + NoteColumns.ID + "=?", + new String [] { String.valueOf(noteId)}, + null); + + if (cursor != null) { + String snippet = ""; + if (cursor.moveToFirst()) { + snippet = cursor.getString(0); + } + cursor.close(); + return snippet; + } + throw new IllegalArgumentException("Note is not found with id: " + noteId); + } + + /** + * 格式化笔记摘要，截取第一行内容 + * @param snippet 原始摘要 + * @return 格式化后的摘要 + */ + public static String getFormattedSnippet(String snippet) { + if (snippet != null) { + snippet = snippet.trim(); + int index = snippet.indexOf('\n'); + if (index != -1) { + snippet = snippet.substring(0, index); + } + } + return snippet; + } +} \ No newline at end of file diff --git a/src/tool/GTaskStringUtils.java b/src/tool/GTaskStringUtils.java new file mode 100644 index 0000000..e816f70 --- /dev/null +++ b/src/tool/GTaskStringUtils.java @@ -0,0 +1,166 @@ +/* + * 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. + */ + +package net.micode.notes.tool; + +/** + * Google Tasks同步相关的字符串常量工具类 + * 该类定义了与Google Tasks服务交互时使用的JSON字段名、文件夹名称和元数据标识等常量 + */ +public class GTaskStringUtils { + + // ------------ JSON请求/响应字段常量 ------------ + + /** JSON中表示操作ID的字段 */ + public final static String GTASK_JSON_ACTION_ID = "action_id"; + + /** JSON中表示操作列表的字段 */ + public final static String GTASK_JSON_ACTION_LIST = "action_list"; + + /** JSON中表示操作类型的字段 */ + public final static String GTASK_JSON_ACTION_TYPE = "action_type"; + + /** 表示创建操作的类型值 */ + public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create"; + + /** 表示获取所有数据操作的类型值 */ + public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all"; + + /** 表示移动操作的类型值 */ + public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move"; + + /** 表示更新操作的类型值 */ + public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update"; + + /** JSON中表示创建者ID的字段 */ + public final static String GTASK_JSON_CREATOR_ID = "creator_id"; + + /** JSON中表示子实体的字段 */ + public final static String GTASK_JSON_CHILD_ENTITY = "child_entity"; + + /** JSON中表示客户端版本的字段 */ + public final static String GTASK_JSON_CLIENT_VERSION = "client_version"; + + /** JSON中表示任务是否完成的字段 */ + public final static String GTASK_JSON_COMPLETED = "completed"; + + /** JSON中表示当前列表ID的字段 */ + public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id"; + + /** JSON中表示默认列表ID的字段 */ + public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id"; + + /** JSON中表示是否已删除的字段 */ + public final static String GTASK_JSON_DELETED = "deleted"; + + /** JSON中表示目标列表的字段 */ + public final static String GTASK_JSON_DEST_LIST = "dest_list"; + + /** JSON中表示目标父级的字段 */ + public final static String GTASK_JSON_DEST_PARENT = "dest_parent"; + + /** JSON中表示目标父级类型的字段 */ + public final static String GTASK_JSON_DEST_PARENT_TYPE = "dest_parent_type"; + + /** JSON中表示实体增量的字段 */ + public final static String GTASK_JSON_ENTITY_DELTA = "entity_delta"; + + /** JSON中表示实体类型的字段 */ + public final static String GTASK_JSON_ENTITY_TYPE = "entity_type"; + + /** JSON中表示获取已删除项的字段 */ + public final static String GTASK_JSON_GET_DELETED = "get_deleted"; + + /** JSON中表示ID的字段 */ + public final static String GTASK_JSON_ID = "id"; + + /** JSON中表示索引的字段 */ + public final static String GTASK_JSON_INDEX = "index"; + + /** JSON中表示最后修改时间的字段 */ + public final static String GTASK_JSON_LAST_MODIFIED = "last_modified"; + + /** JSON中表示最新同步点的字段 */ + public final static String GTASK_JSON_LATEST_SYNC_POINT = "latest_sync_point"; + + /** JSON中表示列表ID的字段 */ + public final static String GTASK_JSON_LIST_ID = "list_id"; + + /** JSON中表示列表集合的字段 */ + public final static String GTASK_JSON_LISTS = "lists"; + + /** JSON中表示名称的字段 */ + public final static String GTASK_JSON_NAME = "name"; + + /** JSON中表示新ID的字段 */ + public final static String GTASK_JSON_NEW_ID = "new_id"; + + /** JSON中表示备注的字段 */ + public final static String GTASK_JSON_NOTES = "notes"; + + /** JSON中表示父级ID的字段 */ + public final static String GTASK_JSON_PARENT_ID = "parent_id"; + + /** JSON中表示前一个兄弟节点ID的字段 */ + public final static String GTASK_JSON_PRIOR_SIBLING_ID = "prior_sibling_id"; + + /** JSON中表示结果的字段 */ + public final static String GTASK_JSON_RESULTS = "results"; + + /** JSON中表示源列表的字段 */ + public final static String GTASK_JSON_SOURCE_LIST = "source_list"; + + /** JSON中表示任务集合的字段 */ + public final static String GTASK_JSON_TASKS = "tasks"; + + /** JSON中表示类型的字段 */ + public final static String GTASK_JSON_TYPE = "type"; + + /** 表示组类型的值 */ + public final static String GTASK_JSON_TYPE_GROUP = "GROUP"; + + /** 表示任务类型的值 */ + public final static String GTASK_JSON_TYPE_TASK = "TASK"; + + /** JSON中表示用户的字段 */ + public final static String GTASK_JSON_USER = "user"; + + // ------------ 文件夹和元数据相关常量 ------------ + + /** MIUI笔记在Google Tasks中的文件夹前缀 */ + public final static String MIUI_FOLDER_PREFFIX = "[MIUI_Notes]"; + + /** 默认文件夹名称 */ + public final static String FOLDER_DEFAULT = "Default"; + + /** 通话记录文件夹名称 */ + public final static String FOLDER_CALL_NOTE = "Call_Note"; + + /** 元数据文件夹名称 */ + public final static String FOLDER_META = "METADATA"; + + /** 元数据头部中表示Google Tasks ID的标识 */ + public final static String META_HEAD_GTASK_ID = "meta_gid"; + + /** 元数据头部中表示笔记的标识 */ + public final static String META_HEAD_NOTE = "meta_note"; + + /** 元数据头部中表示数据的标识 */ + public final static String META_HEAD_DATA = "meta_data"; + + /** 元数据笔记的名称，提示用户不要更新和删除 */ + public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE"; +} \ No newline at end of file diff --git a/src/tool/ResourceParser.java b/src/tool/ResourceParser.java new file mode 100644 index 0000000..cfb9f3f --- /dev/null +++ b/src/tool/ResourceParser.java @@ -0,0 +1,286 @@ +/* + * 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. + */ + +package net.micode.notes.tool; + +import android.content.Context; +import android.preference.PreferenceManager; + +import net.micode.notes.R; +import net.micode.notes.ui.NotesPreferenceActivity; + +/** + * 资源解析工具类，用于管理和获取笔记应用中的各种资源 + * 包括背景颜色、文本大小、列表项样式和小部件样式等资源 + */ +public class ResourceParser { + + // ------------ 笔记背景颜色常量 ------------ + + /** 黄色背景 */ + public static final int YELLOW = 0; + /** 蓝色背景 */ + public static final int BLUE = 1; + /** 白色背景 */ + public static final int WHITE = 2; + /** 绿色背景 */ + public static final int GREEN = 3; + /** 红色背景 */ + public static final int RED = 4; + + /** 默认背景颜色 */ + public static final int BG_DEFAULT_COLOR = YELLOW; + + // ------------ 文本大小常量 ------------ + + /** 小号文本 */ + public static final int TEXT_SMALL = 0; + /** 中号文本 */ + public static final int TEXT_MEDIUM = 1; + /** 大号文本 */ + public static final int TEXT_LARGE = 2; + /** 超大号文本 */ + public static final int TEXT_SUPER = 3; + + /** 默认文本大小 */ + public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM; + + // ------------ 编辑界面背景资源 ------------ + + /** + * 笔记编辑界面背景资源管理类 + */ + public static class NoteBgResources { + /** 编辑界面背景资源数组 */ + private final static int [] BG_EDIT_RESOURCES = new int [] { + R.drawable.edit_yellow, + R.drawable.edit_blue, + R.drawable.edit_white, + R.drawable.edit_green, + R.drawable.edit_red + }; + + /** 编辑界面标题背景资源数组 */ + private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] { + R.drawable.edit_title_yellow, + R.drawable.edit_title_blue, + R.drawable.edit_title_white, + R.drawable.edit_title_green, + R.drawable.edit_title_red + }; + + /** + * 获取指定颜色ID的编辑界面背景资源 + * @param id 颜色ID + * @return 背景资源ID + */ + public static int getNoteBgResource(int id) { + return BG_EDIT_RESOURCES[id]; + } + + /** + * 获取指定颜色ID的编辑界面标题背景资源 + * @param id 颜色ID + * @return 标题背景资源ID + */ + public static int getNoteTitleBgResource(int id) { + return BG_EDIT_TITLE_RESOURCES[id]; + } + } + + /** + * 获取默认背景颜色ID + * @param context 应用上下文 + * @return 背景颜色ID + */ + public static int getDefaultBgId(Context context) { + if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean( + NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) { + return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length); + } else { + return BG_DEFAULT_COLOR; + } + } + + // ------------ 列表项背景资源 ------------ + + /** + * 笔记列表项背景资源管理类 + */ + public static class NoteItemBgResources { + /** 列表首项背景资源数组 */ + private final static int [] BG_FIRST_RESOURCES = new int [] { + R.drawable.list_yellow_up, + R.drawable.list_blue_up, + R.drawable.list_white_up, + R.drawable.list_green_up, + R.drawable.list_red_up + }; + + /** 列表中间项背景资源数组 */ + private final static int [] BG_NORMAL_RESOURCES = new int [] { + R.drawable.list_yellow_middle, + R.drawable.list_blue_middle, + R.drawable.list_white_middle, + R.drawable.list_green_middle, + R.drawable.list_red_middle + }; + + /** 列表末项背景资源数组 */ + private final static int [] BG_LAST_RESOURCES = new int [] { + R.drawable.list_yellow_down, + R.drawable.list_blue_down, + R.drawable.list_white_down, + R.drawable.list_green_down, + R.drawable.list_red_down, + }; + + /** 列表单项背景资源数组 */ + private final static int [] BG_SINGLE_RESOURCES = new int [] { + R.drawable.list_yellow_single, + R.drawable.list_blue_single, + R.drawable.list_white_single, + R.drawable.list_green_single, + R.drawable.list_red_single + }; + + /** + * 获取列表首项背景资源 + * @param id 颜色ID + * @return 背景资源ID + */ + public static int getNoteBgFirstRes(int id) { + return BG_FIRST_RESOURCES[id]; + } + + /** + * 获取列表末项背景资源 + * @param id 颜色ID + * @return 背景资源ID + */ + public static int getNoteBgLastRes(int id) { + return BG_LAST_RESOURCES[id]; + } + + /** + * 获取列表单项背景资源 + * @param id 颜色ID + * @return 背景资源ID + */ + public static int getNoteBgSingleRes(int id) { + return BG_SINGLE_RESOURCES[id]; + } + + /** + * 获取列表中间项背景资源 + * @param id 颜色ID + * @return 背景资源ID + */ + public static int getNoteBgNormalRes(int id) { + return BG_NORMAL_RESOURCES[id]; + } + + /** + * 获取文件夹背景资源 + * @return 文件夹背景资源ID + */ + public static int getFolderBgRes() { + return R.drawable.list_folder; + } + } + + // ------------ 桌面小部件背景资源 ------------ + + /** + * 桌面小部件背景资源管理类 + */ + public static class WidgetBgResources { + /** 2x大小小部件背景资源数组 */ + private final static int [] BG_2X_RESOURCES = new int [] { + R.drawable.widget_2x_yellow, + R.drawable.widget_2x_blue, + R.drawable.widget_2x_white, + R.drawable.widget_2x_green, + R.drawable.widget_2x_red, + }; + + /** + * 获取2x大小小部件背景资源 + * @param id 颜色ID + * @return 背景资源ID + */ + public static int getWidget2xBgResource(int id) { + return BG_2X_RESOURCES[id]; + } + + /** 4x大小小部件背景资源数组 */ + private final static int [] BG_4X_RESOURCES = new int [] { + R.drawable.widget_4x_yellow, + R.drawable.widget_4x_blue, + R.drawable.widget_4x_white, + R.drawable.widget_4x_green, + R.drawable.widget_4x_red + }; + + /** + * 获取4x大小小部件背景资源 + * @param id 颜色ID + * @return 背景资源ID + */ + public static int getWidget4xBgResource(int id) { + return BG_4X_RESOURCES[id]; + } + } + + // ------------ 文本外观资源 ------------ + + /** + * 文本外观资源管理类 + */ + public static class TextAppearanceResources { + /** 文本外观资源数组 */ + private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] { + R.style.TextAppearanceNormal, + R.style.TextAppearanceMedium, + R.style.TextAppearanceLarge, + R.style.TextAppearanceSuper + }; + + /** + * 获取指定ID的文本外观资源 + * @param id 文本大小ID + * @return 文本外观资源ID + */ + public static int getTexAppearanceResource(int id) { + /** + * HACKME: 修复在共享偏好中存储资源ID可能导致的问题 + * 如果ID大于资源数组长度，返回默认字体大小对应的资源 + */ + if (id >= TEXTAPPEARANCE_RESOURCES.length) { + return BG_DEFAULT_FONT_SIZE; + } + return TEXTAPPEARANCE_RESOURCES[id]; + } + + /** + * 获取文本外观资源数组大小 + * @return 资源数组长度 + */ + public static int getResourcesSize() { + return TEXTAPPEARANCE_RESOURCES.length; + } + } +} \ No newline at end of file