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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* 版权声明:本文件由MiCode开源社区开发,遵循Apache License, Version 2.0协议;
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* 您仅在遵守协议的前提下使用本文件,完整协议可通过以下链接获取:
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* http://www.apache.org/licenses/LICENSE-2.0
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* 注:未书面明确要求时,本软件按"原样"提供,不附带任何明示或暗示的保证。
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*/
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package net.micode.notes.tool;
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import android.content.ContentProviderOperation;
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import android.content.ContentProviderResult;
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import android.content.ContentResolver;
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import android.content.ContentUris;
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import android.content.ContentValues;
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import android.content.OperationApplicationException;
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import android.database.Cursor;
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import android.os.RemoteException;
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import android.util.Log;
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import net.micode.notes.data.Notes;
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import net.micode.notes.data.Notes.CallNote;
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import net.micode.notes.data.Notes.NoteColumns;
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import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
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import java.util.ArrayList;
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import java.util.HashSet;
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/**
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* 数据操作工具类
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* 提供笔记数据的批量删除、移动、存在性检查、文件夹管理等功能,封装数据库操作细节
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*/
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public class DataUtils {
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public static final String TAG = "DataUtils";
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/**
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* 批量删除笔记(支持多条记录一次性删除)
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* @param resolver ContentResolver实例(用于访问内容提供者)
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* @param ids 待删除的笔记ID集合(HashSet<Long>类型)
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* @return 删除成功返回true,失败返回false
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*/
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public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
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if (ids == null) { // 空集合校验
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Log.d(TAG, "待删除的笔记ID集合为空");
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return true;
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}
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if (ids.size() == 0) { // 无有效ID校验
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Log.d(TAG, "笔记ID集合中无元素");
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return true;
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}
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// 构建批量操作列表(使用ContentProviderOperation提高效率)
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ArrayList<ContentProviderOperation> operationList = new ArrayList<>();
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for (long id : ids) {
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if (id == Notes.ID_ROOT_FOLDER) { // 系统根文件夹保护逻辑
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Log.e(TAG, "禁止删除系统根文件夹");
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continue;
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}
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// 构建删除操作(针对note表中指定ID的记录)
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
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operationList.add(builder.build());
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}
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try {
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// 执行批量删除操作(通过ContentResolver提交)
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
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// 结果校验(任意操作失败则整体失败)
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if (results == null || results.length == 0 || results[0] == null) {
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Log.d(TAG, "笔记删除失败,ID集合:" + ids.toString());
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return false;
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}
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return true;
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} catch (RemoteException e) { // 跨进程调用异常(如内容提供者崩溃)
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Log.e(TAG, "远程调用异常: " + e.toString() + " - " + e.getMessage());
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} catch (OperationApplicationException e) { // 操作应用异常(如数据冲突)
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Log.e(TAG, "操作应用异常: " + e.toString() + " - " + e.getMessage());
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}
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return false;
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}
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/**
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* 将单个笔记移动到目标文件夹
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* @param resolver ContentResolver实例
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* @param id 待移动的笔记ID
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* @param srcFolderId 原文件夹ID
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* @param desFolderId 目标文件夹ID
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*/
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public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
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ContentValues values = new ContentValues();
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values.put(NoteColumns.PARENT_ID, desFolderId); // 更新父文件夹ID为目标文件夹
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values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); // 记录原始父文件夹ID
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values.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记本地修改(用于同步)
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// 执行更新操作(针对note表中指定ID的记录)
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resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
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}
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/**
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* 批量移动笔记到目标文件夹
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* @param resolver ContentResolver实例
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* @param ids 待移动的笔记ID集合
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* @param folderId 目标文件夹ID
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* @return 移动成功返回true,失败返回false
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*/
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public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids, long folderId) {
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if (ids == null) { // 空集合校验
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Log.d(TAG, "待移动的笔记ID集合为空");
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return true;
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}
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// 构建批量操作列表(使用ContentProviderOperation提高效率)
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ArrayList<ContentProviderOperation> operationList = new ArrayList<>();
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for (long id : ids) {
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// 构建更新操作(设置父文件夹ID并标记本地修改)
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
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builder.withValue(NoteColumns.PARENT_ID, folderId); // 目标文件夹ID
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builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); // 标记本地修改
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operationList.add(builder.build());
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}
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try {
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// 执行批量更新操作
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
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// 结果校验
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if (results == null || results.length == 0 || results[0] == null) {
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Log.d(TAG, "笔记移动失败,ID集合:" + ids.toString());
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return false;
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}
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return true;
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} catch (RemoteException e) { // 跨进程调用异常
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Log.e(TAG, "远程调用异常: " + e.toString() + " - " + e.getMessage());
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} catch (OperationApplicationException e) { // 操作应用异常
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Log.e(TAG, "操作应用异常: " + e.toString() + " - " + e.getMessage());
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}
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return false;
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}
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/**
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* 获取用户创建的文件夹数量(排除系统文件夹和回收站)
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* @param resolver ContentResolver实例
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* @return 用户文件夹数量(整数)
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*/
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public static int getUserFolderCount(ContentResolver resolver) {
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// 查询条件:类型为文件夹 且 父ID不等于回收站ID
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Cursor cursor = resolver.query(
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Notes.CONTENT_NOTE_URI,
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new String[]{"COUNT(*)"}, // 查询字段:记录数
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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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);
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int count = 0;
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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try {
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count = cursor.getInt(0); // 获取统计结果
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "获取文件夹数量失败: " + e.toString());
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} finally {
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cursor.close(); // 关闭游标释放资源
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}
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}
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}
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return count;
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}
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/**
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* 检查笔记在数据库中是否可见(非回收站且类型匹配)
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* @param resolver ContentResolver实例
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* @param noteId 待检查的笔记ID
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* @param type 笔记类型(如Notes.TYPE_NOTE、Notes.TYPE_FOLDER)
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* @return 可见返回true,不可见返回false
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*/
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public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
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// 查询条件:指定ID、类型匹配、非回收站
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Cursor cursor = resolver.query(
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ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
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null,
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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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);
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boolean exist = false;
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if (cursor != null) {
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exist = cursor.getCount() > 0; // 存在记录则可见
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cursor.close(); // 关闭游标
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}
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return exist;
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}
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/**
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* 检查笔记是否存在于数据库中(无论状态)
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* @param resolver ContentResolver实例
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* @param noteId 待检查的笔记ID
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* @return 存在返回true,不存在返回false
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*/
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public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
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// 查询note表中是否存在指定ID的记录
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Cursor cursor = resolver.query(
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ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
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null,
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null,
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null,
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null
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);
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boolean exist = false;
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if (cursor != null) {
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exist = cursor.getCount() > 0; // 存在记录则返回true
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cursor.close(); // 关闭游标
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}
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return exist;
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}
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/**
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* 检查关联数据(如文本、通话记录)是否存在于数据库中
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* @param resolver ContentResolver实例
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* @param dataId 待检查的关联数据ID(data表中的记录ID)
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* @return 存在返回true,不存在返回false
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*/
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public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
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// 查询data表中是否存在指定ID的记录
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Cursor cursor = resolver.query(
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ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
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null,
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null,
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null,
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null
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);
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boolean exist = false;
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if (cursor != null) {
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exist = cursor.getCount() > 0; // 存在记录则返回true
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cursor.close(); // 关闭游标
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}
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return exist;
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}
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/**
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* 检查可见文件夹名称是否已存在(用于新建文件夹时的重名校验)
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* @param resolver ContentResolver实例
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* @param name 待检查的文件夹名称
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* @return 已存在返回true,不存在返回false
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*/
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public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
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// 查询条件:类型为文件夹、非回收站、摘要(名称)匹配
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Cursor cursor = resolver.query(
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Notes.CONTENT_NOTE_URI,
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null,
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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},
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null
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);
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boolean exist = false;
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if (cursor != null) {
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exist = cursor.getCount() > 0; // 存在记录则名称已存在
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cursor.close(); // 关闭游标
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}
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return exist;
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}
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/**
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* 获取指定文件夹下的所有桌面小部件属性(用于小部件管理)
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* @param resolver ContentResolver实例
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* @param folderId 目标文件夹ID
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* @return 小部件属性集合(HashSet<AppWidgetAttribute>),无数据返回null
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*/
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public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
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// 查询note表中属于该文件夹的小部件记录(只取widget_id和widget_type字段)
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Cursor c = resolver.query(
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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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new String[]{String.valueOf(folderId)},
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null
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);
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HashSet<AppWidgetAttribute> set = null;
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if (c != null) {
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if (c.moveToFirst()) {
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set = new HashSet<>(); // 初始化集合
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do {
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try {
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AppWidgetAttribute widget = new AppWidgetAttribute();
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widget.widgetId = c.getInt(0); // 小部件ID
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widget.widgetType = c.getInt(1); // 小部件类型
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set.add(widget); // 添加到集合
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "解析小部件属性失败: " + e.toString());
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}
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} while (c.moveToNext()); // 遍历所有记录
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}
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c.close(); // 关闭游标
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}
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return set;
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}
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/**
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* 根据笔记ID获取通话记录的电话号码(仅适用于通话类型笔记)
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* @param resolver ContentResolver实例
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* @param noteId 通话类型笔记的ID
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* @return 电话号码字符串(无数据返回空字符串)
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*/
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public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
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// 查询data表中关联的通话记录(MIME类型为CallNote.CONTENT_ITEM_TYPE)
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Cursor cursor = resolver.query(
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Notes.CONTENT_DATA_URI,
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new String[]{CallNote.PHONE_NUMBER}, // 只取电话号码字段
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CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
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new String[]{String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE},
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null
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);
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if (cursor != null && cursor.moveToFirst()) {
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try {
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return cursor.getString(0); // 返回电话号码
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "获取通话号码失败: " + e.toString());
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} finally {
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cursor.close(); // 关闭游标
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}
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}
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return ""; // 无数据返回空字符串
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}
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/**
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* 根据电话号码和通话时间查找关联的笔记ID(用于通话记录匹配)
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* @param resolver ContentResolver实例
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* @param phoneNumber 电话号码
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* @param callDate 通话时间戳(毫秒级)
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* @return 匹配的笔记ID(无匹配返回0)
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*/
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public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
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// 查询条件:通话时间匹配、MIME类型正确、电话号码匹配(使用PHONE_NUMBERS_EQUAL处理号码格式)
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Cursor cursor = resolver.query(
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Notes.CONTENT_DATA_URI,
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new String[]{CallNote.NOTE_ID}, // 只取笔记ID字段
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CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL(" + CallNote.PHONE_NUMBER + ",?)",
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new String[]{String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber},
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null
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);
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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try {
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return cursor.getLong(0); // 返回匹配的笔记ID
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "获取通话笔记ID失败: " + e.toString());
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}
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}
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cursor.close(); // 关闭游标
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}
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return 0; // 无匹配返回0
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}
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/**
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* 根据笔记ID获取摘要内容(用于显示预览)
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* @param resolver ContentResolver实例
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* @param noteId 笔记ID
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* @return 摘要字符串(无数据抛出异常)
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*/
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public static String getSnippetById(ContentResolver resolver, long noteId) {
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// 查询note表中的摘要字段
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Cursor cursor = resolver.query(
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Notes.CONTENT_NOTE_URI,
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new String[]{NoteColumns.SNIPPET}, // 只取摘要字段
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NoteColumns.ID + "=?",
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new String[]{String.valueOf(noteId)},
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null
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);
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if (cursor != null) {
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String snippet = "";
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if (cursor.moveToFirst()) {
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snippet = cursor.getString(0); // 获取摘要内容
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}
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cursor.close(); // 关闭游标
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return snippet;
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}
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// 未找到笔记时抛出异常(参数非法)
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throw new IllegalArgumentException("未找到ID为" + noteId + "的笔记");
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}
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/**
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* 格式化摘要内容(用于显示优化)
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* @param snippet 原始摘要字符串
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* @return 格式化后的摘要(去除首尾空格,截断换行符前的内容)
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*/
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public static String getFormattedSnippet(String snippet) {
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if (snippet != null) {
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snippet = snippet.trim(); // 去除首尾空格
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int index = snippet.indexOf('\n'); // 查找换行符位置
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if (index != -1) { // 存在换行符时截断
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snippet = snippet.substring(0, index);
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}
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}
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return snippet;
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}
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} |