diff --git a/Notes-master/src/net/micode/notes/tool/DataUtils.java b/Notes-master/src/net/micode/notes/tool/DataUtils.java index 2a14982..df43ed3 100644 --- a/Notes-master/src/net/micode/notes/tool/DataUtils.java +++ b/Notes-master/src/net/micode/notes/tool/DataUtils.java @@ -13,7 +13,7 @@ * See the License for the specific language governing permissions and * limitations under the License. */ - +//与backup部分库类似，不再赘述 package net.micode.notes.tool; import android.content.ContentProviderOperation; @@ -38,83 +38,122 @@ import java.util.HashSet; public class DataUtils { public static final String TAG = "DataUtils"; public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { + // 检查提供的ID集合是否为null if (ids == null) { Log.d(TAG, "the ids is null"); return true; } + // 检查ID集合是否为空 if (ids.size() == 0) { Log.d(TAG, "no id is in the hashset"); return true; } + // TODO: 实现根据提供的ids批量删除笔记的逻辑 + return false; + } +} - 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()); + public boolean deleteNotes(long[] ids) { + // 创建一个内容提供者操作的列表，用于存储删除操作 + ArrayList operationList = new ArrayList(); + + // 遍历所有给定的ID + for (long id : ids) { + // 检查ID是否为系统根文件夹ID，如果是则跳过删除操作 + if(id == Notes.ID_ROOT_FOLDER) { + Log.e(TAG, "Don't delete system folder root"); + continue; } - 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())); + // 为每个非系统根文件夹ID构建一个删除操作，并添加到操作列表中 + ContentProviderOperation.Builder builder = ContentProviderOperation + .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); + operationList.add(builder.build()); + } + + try { + // 执行内容提供者操作列表中的所有操作 + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + + // 检查删除操作的结果，如果没有成功删除任何笔记，则返回false + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; } - return false; + // 所有删除操作执行成功，返回true + return true; + } catch (RemoteException e) { + // 处理执行删除操作时可能出现的远程异常 + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } catch (OperationApplicationException e) { + // 处理执行删除操作时可能出现的操作应用异常 + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); } + // 如果有任何异常发生，则返回false + return false; +} - 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); - } + /** + * 将指定的笔记移动到新的文件夹中。 + * + * @param resolver 内容解析器，用于执行数据库操作。 + * @param id 笔记的ID，表示要移动的笔记。 + * @param srcFolderId 源文件夹ID，表示当前笔记所在的文件夹。 + * @param desFolderId 目标文件夹ID，表示要将笔记移动到的新文件夹。 + */ +public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.PARENT_ID, desFolderId); // 设置新的父文件夹ID + values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); // 记录原始父文件夹ID + values.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记笔记已本地修改 + resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); // 执行更新操作 +} - public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, - long folderId) { - if (ids == null) { - Log.d(TAG, "the ids is null"); - return true; - } +/** + * 批量将笔记移动到指定的文件夹中。 + * + * @param resolver 内容解析器，用于执行数据库操作。 + * @param ids 需要移动的笔记ID集合。 + * @param folderId 目标文件夹ID，表示要将笔记移动到的新文件夹。 + * @return 如果移动操作成功执行，则返回true；否则返回false。 + */ +public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, + long folderId) { + if (ids == null) { + Log.d(TAG, "the ids is null"); + return true; // 如果ID集为空，视为操作成功 + } - 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()); - } + // 准备批量操作 + 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); // 设置新的父文件夹ID + builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); // 标记笔记已本地修改 + 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())); + try { + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + // 检查操作结果 + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; // 如果没有成功的结果，返回false } - return false; + return true; // 批量操作成功 + } 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; // 捕获异常，返回失败 +} /** * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}} */ public static int getUserFolderCount(ContentResolver resolver) { + // 查询数据库中类型为文件夹且父ID不为回收站ID的笔记数量 Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI, new String[] { "COUNT(*)" }, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", @@ -123,20 +162,24 @@ public class DataUtils { int count = 0; if(cursor != null) { + // 如果查询结果不为空，则尝试获取计数结果 if(cursor.moveToFirst()) { try { - count = cursor.getInt(0); + count = cursor.getInt(0); // 获取查询结果中的计数 } catch (IndexOutOfBoundsException e) { + // 处理可能的索引越界异常 Log.e(TAG, "get folder count failed:" + e.toString()); } finally { + // 无论是否成功，最后都关闭Cursor cursor.close(); } } } - return count; + return count; // 返回文件夹数量 } public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { + // 根据noteId和类型查询数据库，排除父ID为垃圾文件夹的情况 Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, @@ -145,151 +188,176 @@ public class DataUtils { boolean exist = false; if (cursor != null) { + // 检查查询结果是否有记录 if (cursor.getCount() > 0) { exist = true; } + // 关闭Cursor cursor.close(); } return exist; } - public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { - Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), - null, null, null, null); + // 使用ContentUris和noteId构建查询URI，并执行查询 + 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(); + boolean exist = false; + if (cursor != null) { + // 如果查询结果不为空，检查是否有记录匹配 + if (cursor.getCount() > 0) { + exist = true; } - return exist; + // 关闭Cursor + cursor.close(); } + return exist; +} - public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { - Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), - null, null, null, null); + public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { + // 使用ContentUris和dataId构建查询URI，并执行查询 + 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(); + boolean exist = false; + if (cursor != null) { + // 如果查询结果不为空，检查是否有记录匹配 + if (cursor.getCount() > 0) { + exist = true; } - return exist; + // 关闭Cursor + cursor.close(); } + return exist; +} 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(); + // 构建查询条件，查询类型为文件夹且非回收站中的记录，并执行查询 + 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) { + // 如果查询结果不为空，检查是否有记录匹配 + if(cursor.getCount() > 0) { + exist = true; } - return exist; + // 关闭Cursor + cursor.close(); } - + return exist; +} 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); + // 根据指定的文件夹ID查询笔记小部件的ID和类型 + 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(); + HashSet set = null; + if (c != null) { + // 如果查询结果不为空，则遍历结果并填充集合 + if (c.moveToFirst()) { + set = new HashSet(); + do { + try { + AppWidgetAttribute widget = new AppWidgetAttribute(); + widget.widgetId = c.getInt(0); // 获取小部件ID + widget.widgetType = c.getInt(1); // 获取小部件类型 + set.add(widget); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, e.toString()); + } + } while (c.moveToNext()); } - return set; + c.close(); // 关闭游标 } + return set; +} - 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); + public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { + // 根据笔记ID和MIME类型查询关联的电话号码 + 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(); - } + if (cursor != null && cursor.moveToFirst()) { + try { + return cursor.getString(0); // 获取电话号码 + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "Get call number fails " + e.toString()); + } finally { + cursor.close(); // 关闭游标 } - return ""; } - + return ""; // 如果未查询到电话号码，则返回空字符串 +} 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); + // 构造查询语句，查询特定电话号码、通话日期和MIME类型的注释ID + 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()); - } + if (cursor != null) { + if (cursor.moveToFirst()) { + try { + // 如果查询结果存在，返回第一行的注释ID + return cursor.getLong(0); + } catch (IndexOutOfBoundsException e) { + // 处理索引越界异常 + Log.e(TAG, "Get call note id fails " + e.toString()); } - cursor.close(); } - return 0; + // 关闭游标 + cursor.close(); } + // 如果查询无结果，返回0 + return 0; +} + 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); + // 构造查询语句，查询特定ID的注释的摘要 + 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; + if (cursor != null) { + String snippet = ""; + if (cursor.moveToFirst()) { + // 如果查询结果存在，获取摘要 + snippet = cursor.getString(0); } - throw new IllegalArgumentException("Note is not found with id: " + noteId); + // 关闭游标 + cursor.close(); + return snippet; } + // 如果查询无结果，抛出异常 + throw new IllegalArgumentException("Note is not found with id: " + noteId); +} - 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); - } + + + public static String getFormattedSnippet(String snippet) { + if (snippet != null) { + // 删除首尾空格 + snippet = snippet.trim(); + // 如果摘要中包含换行符，截取至第一个换行符前 + int index = snippet.indexOf('\n'); + if (index != -1) { + snippet = snippet.substring(0, index); } - return snippet; } -} + return snippet; +} \ No newline at end of file