From 82703ff42a456035b8aaca3da77e528c925221b6 Mon Sep 17 00:00:00 2001 From: karlsilver <2789175156@qq.com> Date: Thu, 15 May 2025 15:19:57 +0800 Subject: [PATCH] =?UTF-8?q?DataUtils=E6=B3=A8=E9=87=8A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- java/net/micode/notes/tool/DataUtils.java | 81 +++++++++++++++++++++-- 1 file changed, 76 insertions(+), 5 deletions(-) diff --git a/java/net/micode/notes/tool/DataUtils.java b/java/net/micode/notes/tool/DataUtils.java index 2a14982..7937f78 100644 --- a/java/net/micode/notes/tool/DataUtils.java +++ b/java/net/micode/notes/tool/DataUtils.java @@ -34,87 +34,112 @@ import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; import java.util.ArrayList; import java.util.HashSet; - +// 该类包含了一系列用于操作笔记数据的工具方法 public class DataUtils { public static final String TAG = "DataUtils"; + + // 批量删除笔记的方法 public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { + // 检查传入的 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; } + // 创建一个用于批量操作的列表 ArrayList operationList = new ArrayList(); + // 遍历 id 集合 for (long id : ids) { + // 检查是否为系统根文件夹，避免删除系统文件夹 if(id == Notes.ID_ROOT_FOLDER) { Log.e(TAG, "Don't delete system folder root"); continue; } + // 创建一个删除操作 ContentProviderOperation.Builder builder = ContentProviderOperation .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); + // 将操作添加到列表中 operationList.add(builder.build()); } try { + // 执行批量操作 ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + // 检查操作结果是否有效 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) { + // 处理远程异常 Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); } catch (OperationApplicationException e) { + // 处理操作应用异常 Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); } return false; } + // 将单个笔记移动到指定文件夹的方法 public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { + // 创建一个 ContentValues 对象，用于存储要更新的字段和值 ContentValues values = new ContentValues(); values.put(NoteColumns.PARENT_ID, desFolderId); values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); values.put(NoteColumns.LOCAL_MODIFIED, 1); + // 执行更新操作 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的方法 public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, long folderId) { + // 检查传入的 id 集合是否为 null if (ids == null) { Log.d(TAG, "the ids is null"); return true; } + // 创建一个用于批量操作的列表 ArrayList operationList = new ArrayList(); + // 遍历 id 集合 for (long id : ids) { + // 创建一个更新操作 ContentProviderOperation.Builder builder = ContentProviderOperation .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); builder.withValue(NoteColumns.PARENT_ID, folderId); builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); + // 将操作添加到列表中 operationList.add(builder.build()); } try { + // 执行批量操作 ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + // 检查操作结果是否有效 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) { + // 处理远程异常 Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); } catch (OperationApplicationException e) { + // 处理操作应用异常 Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); } return false; } - /** - * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}} - */ + // 获取用户文件夹数量的方法，排除系统文件夹 public static int getUserFolderCount(ContentResolver resolver) { + // 查询用户文件夹的数量 Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI, new String[] { "COUNT(*)" }, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", @@ -122,13 +147,17 @@ public class DataUtils { null); int count = 0; + // 检查游标是否有效 if(cursor != null) { if(cursor.moveToFirst()) { try { + // 获取文件夹数量 count = cursor.getInt(0); } catch (IndexOutOfBoundsException e) { + // 处理索引越界异常 Log.e(TAG, "get folder count failed:" + e.toString()); } finally { + // 关闭游标 cursor.close(); } } @@ -136,7 +165,9 @@ public class DataUtils { return count; } + // 检查笔记是否在数据库中可见的方法 public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { + // 查询笔记是否可见 Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, @@ -144,60 +175,76 @@ public class DataUtils { null); boolean exist = false; + // 检查游标是否有效 if (cursor != null) { if (cursor.getCount() > 0) { exist = true; } + // 关闭游标 cursor.close(); } return exist; } + // 检查笔记是否存在于数据库中的方法 public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { + // 查询笔记是否存在 Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null, null, null, null); boolean exist = false; + // 检查游标是否有效 if (cursor != null) { if (cursor.getCount() > 0) { exist = true; } + // 关闭游标 cursor.close(); } return exist; } + // 检查数据是否存在于数据库中的方法 public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { + // 查询数据是否存在 Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null, null, null, null); boolean exist = false; + // 检查游标是否有效 if (cursor != null) { if (cursor.getCount() > 0) { exist = true; } + // 关闭游标 cursor.close(); } return exist; } + // 检查可见文件夹名称是否存在的方法 public static boolean checkVisibleFolderName(ContentResolver resolver, String name) { + // 查询可见文件夹名称是否存在 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; + // 检查游标是否有效 if(cursor != null) { if(cursor.getCount() > 0) { exist = true; } + // 关闭游标 cursor.close(); } return exist; } + // 获取指定文件夹下的笔记小部件信息的方法 public static HashSet getFolderNoteWidget(ContentResolver resolver, long folderId) { + // 查询指定文件夹下的笔记小部件信息 Cursor c = resolver.query(Notes.CONTENT_NOTE_URI, new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE }, NoteColumns.PARENT_ID + "=?", @@ -205,26 +252,33 @@ public class DataUtils { null); HashSet set = null; + // 检查游标是否有效 if (c != null) { if (c.moveToFirst()) { set = new HashSet(); do { try { + // 创建一个 AppWidgetAttribute 对象 AppWidgetAttribute widget = new AppWidgetAttribute(); widget.widgetId = c.getInt(0); widget.widgetType = c.getInt(1); + // 将对象添加到集合中 set.add(widget); } catch (IndexOutOfBoundsException e) { + // 处理索引越界异常 Log.e(TAG, e.toString()); } } while (c.moveToNext()); } + // 关闭游标 c.close(); } return set; } + // 根据笔记 ID 获取通话号码的方法 public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { + // 查询通话号码 Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, new String [] { CallNote.PHONE_NUMBER }, CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", @@ -233,17 +287,22 @@ public class DataUtils { if (cursor != null && cursor.moveToFirst()) { try { + // 获取通话号码 return cursor.getString(0); } catch (IndexOutOfBoundsException e) { + // 处理索引越界异常 Log.e(TAG, "Get call number fails " + e.toString()); } finally { + // 关闭游标 cursor.close(); } } return ""; } + // 根据电话号码和通话日期获取笔记 ID 的方法 public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) { + // 查询笔记 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(" @@ -254,17 +313,22 @@ public class DataUtils { if (cursor != null) { if (cursor.moveToFirst()) { try { + // 获取笔记 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()); } } + // 关闭游标 cursor.close(); } return 0; } + // 根据笔记 ID 获取摘要的方法 public static String getSnippetById(ContentResolver resolver, long noteId) { + // 查询摘要 Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, new String [] { NoteColumns.SNIPPET }, NoteColumns.ID + "=?", @@ -274,22 +338,29 @@ public class DataUtils { if (cursor != null) { String snippet = ""; if (cursor.moveToFirst()) { + // 获取摘要 snippet = cursor.getString(0); } + // 关闭游标 cursor.close(); return snippet; } + // 若未找到笔记，抛出异常 throw new IllegalArgumentException("Note is not found with id: " + noteId); } + // 格式化摘要的方法 public static String getFormattedSnippet(String snippet) { if (snippet != null) { + // 去除前后空格 snippet = snippet.trim(); + // 查找换行符的位置 int index = snippet.indexOf('\n'); if (index != -1) { + // 截取换行符之前的内容 snippet = snippet.substring(0, index); } } return snippet; } -} +} \ No newline at end of file