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@ -37,39 +37,49 @@ import java.util.HashSet;
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public class DataUtils {
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public static final String TAG = "DataUtils";
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// 批量删除笔记的静态方法
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public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
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// 检查传入的笔记ID集合是否为空
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if (ids == null) {
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Log.d(TAG, "the ids is null");
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return true;
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return true;// 如果为空，返回删除成功
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}
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// 检查传入的笔记ID集合是否为空
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if (ids.size() == 0) {
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Log.d(TAG, "no id is in the hashset");
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return true;
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return true;// 如果为空，返回删除成功
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}
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// 创建一个操作列表，用于存储批量操作的删除操作
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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// 遍历传入的笔记ID集合，为每个ID创建一个删除操作，并添加到操作列表中
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for (long id : ids) {
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// 检查是否为系统文件夹的ID，如果是，跳过不删除
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if(id == Notes.ID_ROOT_FOLDER) {
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Log.e(TAG, "Don't delete system folder root");
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continue;
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}
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// 创建删除操作的构建器
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
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// 将删除操作添加到操作列表中
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operationList.add(builder.build());
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}
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try {
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// 应用批量操作，删除笔记
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
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// 检查批量操作结果是否为空或第一个结果是否为空
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if (results == null || results.length == 0 || results[0] == null) {
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Log.d(TAG, "delete notes failed, ids:" + ids.toString());
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return false;
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return false;// 如果为空，返回删除失败
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}
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return true;
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return true;// 返回删除成功
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} catch (RemoteException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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} catch (OperationApplicationException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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}
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return false;
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return false;// 返回删除失败
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}
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public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
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@ -82,27 +92,34 @@ public class DataUtils {
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public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
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long folderId) {
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// 检查传入的笔记ID集合是否为空
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if (ids == null) {
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Log.d(TAG, "the ids is null");
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return true;
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return true;// 如果为空，返回移动成功
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}
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// 创建一个操作列表，用于存储批量操作的更新操作
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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// 遍历传入的笔记ID集合，为每个ID创建一个更新操作，并设置新的父文件夹ID和本地修改标志
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for (long id : ids) {
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// 创建更新操作的构建器
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
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// 设置更新操作的值，包括新的父文件夹ID和本地修改标志
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builder.withValue(NoteColumns.PARENT_ID, folderId);
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builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
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// 将更新操作添加到操作列表中
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operationList.add(builder.build());
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}
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try {
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// 应用批量操作，更新笔记的父文件夹ID和本地修改标志
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
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// 检查批量操作结果是否为空或第一个结果是否为空
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if (results == null || results.length == 0 || results[0] == null) {
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Log.d(TAG, "delete notes failed, ids:" + ids.toString());
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return false;
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return false;// 如果为空，返回移动失败
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}
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return true;
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return true;// 返回移动成功
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} catch (RemoteException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
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} catch (OperationApplicationException e) {
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@ -115,89 +132,108 @@ public class DataUtils {
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* Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
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*/
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public static int getUserFolderCount(ContentResolver resolver) {
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// 查询用户文件夹的数量
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Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
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new String[] { "COUNT(*)" },
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// 查询条件：类型为文件夹且父文件夹ID不是回收站文件夹ID
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NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
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new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
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null);
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int count = 0;
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if(cursor != null) {
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// 如果查询结果非空，移动到第一行
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if(cursor.moveToFirst()) {
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try {
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// 获取查询结果中的文件夹数量
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count = cursor.getInt(0);
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} catch (IndexOutOfBoundsException e) {
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// 捕获异常，输出错误日志
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Log.e(TAG, "get folder count failed:" + e.toString());
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} finally {
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// 关闭游标
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cursor.close();
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}
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}
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}
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return count;
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return count;// 返回文件夹数量
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}
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public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
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// 查询指定笔记ID的可见性
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Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
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null,
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// 查询条件：类型为指定类型且父文件夹ID不是回收站文件夹ID
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NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
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new String [] {String.valueOf(type)},
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null);
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boolean exist = false;
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if (cursor != null) {
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// 如果查询结果非空，检查结果数量是否大于0，表示存在
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if (cursor.getCount() > 0) {
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exist = true;
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}
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// 关闭游标
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cursor.close();
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}
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return exist;
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return exist;// 返回是否存在
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}
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public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
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// 查询指定笔记ID是否存在于笔记数据库中
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Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
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null, null, null, null);
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boolean exist = false;
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if (cursor != null) {
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// 如果查询结果非空，检查结果数量是否大于0，表示存在
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if (cursor.getCount() > 0) {
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exist = true;
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}
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// 关闭游标
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cursor.close();
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}
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return exist;
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return exist;// 返回是否存在
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}
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public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
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// 查询指定数据ID是否存在于数据数据库中
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Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
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null, null, null, null);
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boolean exist = false;
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if (cursor != null) {
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// 如果查询结果非空，检查结果数量是否大于0，表示存在
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if (cursor.getCount() > 0) {
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exist = true;
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}
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cursor.close();
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}
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return exist;
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return exist;// 返回是否存在
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}
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public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
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// 查询是否存在具有指定名称的可见文件夹
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Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
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// 查询条件：类型为文件夹、父文件夹ID不是回收站文件夹ID、且摘要等于指定名称
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NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
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" AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
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" AND " + NoteColumns.SNIPPET + "=?",
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new String[] { name }, null);
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boolean exist = false;
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if(cursor != null) {
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// 如果查询结果非空，检查结果数量是否大于0，表示存在
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if(cursor.getCount() > 0) {
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exist = true;
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}
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cursor.close();
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}
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return exist;
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return exist; // 返回是否存在
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}
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public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
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// 查询指定文件夹ID下的笔记小部件信息
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Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
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new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
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NoteColumns.PARENT_ID + "=?",
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@ -206,25 +242,30 @@ public class DataUtils {
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HashSet<AppWidgetAttribute> set = null;
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if (c != null) {
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// 如果查询结果非空，移动到第一行
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if (c.moveToFirst()) {
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set = new HashSet<AppWidgetAttribute>();
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do {
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try {
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// 创建 AppWidgetAttribute 对象，获取小部件ID和小部件类型，添加到集合中
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AppWidgetAttribute widget = new AppWidgetAttribute();
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widget.widgetId = c.getInt(0);
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widget.widgetType = c.getInt(1);
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set.add(widget);
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} catch (IndexOutOfBoundsException e) {
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// 捕获异常，输出错误日志
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Log.e(TAG, e.toString());
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}
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} while (c.moveToNext());
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}
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c.close();
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}
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return set;
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return set;// 返回包含小部件信息的集合
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}
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public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
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// 查询指定笔记ID对应的通话笔记的电话号码
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Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
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new String [] { CallNote.PHONE_NUMBER },
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CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
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@ -233,17 +274,20 @@ public class DataUtils {
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if (cursor != null && cursor.moveToFirst()) {
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try {
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// 获取查询结果中的电话号码
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return cursor.getString(0);
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} catch (IndexOutOfBoundsException e) {
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// 捕获异常，输出错误日志
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Log.e(TAG, "Get call number fails " + e.toString());
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} finally {
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cursor.close();
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}
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}
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return "";
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return "";// 如果查询结果为空，返回空字符串
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}
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public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
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// 查询指定电话号码和通话日期对应的通话笔记的笔记ID
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Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
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new String [] { CallNote.NOTE_ID },
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CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
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@ -252,19 +296,24 @@ public class DataUtils {
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null);
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if (cursor != null) {
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// 如果查询结果非空，移动到第一行
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if (cursor.moveToFirst()) {
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try {
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// 获取查询结果中的笔记ID
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return cursor.getLong(0);
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} catch (IndexOutOfBoundsException e) {
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// 捕获异常，输出错误日志
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Log.e(TAG, "Get call note id fails " + e.toString());
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}
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}
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cursor.close();
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}
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return 0;
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return 0; // 如果查询结果为空，返回0
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}
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public static String getSnippetById(ContentResolver resolver, long noteId) {
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// 查询指定笔记ID的摘要信息
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Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
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new String [] { NoteColumns.SNIPPET },
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NoteColumns.ID + "=?",
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@ -272,17 +321,20 @@ public class DataUtils {
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null);
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if (cursor != null) {
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// 如果查询结果非空，移动到第一行
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String snippet = "";
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if (cursor.moveToFirst()) {
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// 获取查询结果中的摘要信息
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snippet = cursor.getString(0);
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}
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cursor.close();
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return snippet;
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return snippet;// 返回摘要信息
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}
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throw new IllegalArgumentException("Note is not found with id: " + noteId);
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}
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public static String getFormattedSnippet(String snippet) {
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// 格式化摘要信息：去除首尾空格，并截取首个换行符之前的内容
|
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|
|
|
if (snippet != null) {
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|
|
snippet = snippet.trim();
|
|
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|
int index = snippet.indexOf('\n');
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|
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|
@ -290,6 +342,7 @@ public class DataUtils {
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snippet = snippet.substring(0, index);
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}
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|
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|
|
}
|
|
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|
|
return snippet;
|
|
|
|
|
return snippet;// 返回格式化后的摘要信息
|
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|
|
|
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|
|
|
|
}
|
|
|
|
|
}
|
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