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/*
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* 版权所有 (c) 2010-2011, The MiCode 开源社区 (www.micode.net)
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*
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* 根据 Apache License, Version 2.0(“许可证”)获得许可;
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* 除非遵守许可证,否则不得使用此文件。
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* 您可以在以下网址获得许可证的副本:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* 除非适用法律要求或书面同意,否则根据许可证分发的软件以“原样”分发,
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* 没有任何明示或暗示的保证,包括但不限于适销性、针对特定用途的适用性等任何明示或暗示的保证。
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* 请参阅许可证以获取有关许可下的权利和限制的特定语言。
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*/
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package net.micode.notes.tool; // 定义包名
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import android.content.ContentProviderOperation; // 用于执行内容提供者操作
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import android.content.ContentProviderResult; // 用于处理内容提供者操作的结果
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import android.content.ContentResolver; // 用于访问内容提供者
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import android.content.ContentUris; // 用于构建内容URI
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import android.content.ContentValues; // 用于存储键值对
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import android.content.OperationApplicationException; // 操作应用异常
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import android.database.Cursor; // 用于访问数据库的游标
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import android.os.RemoteException; // 远程异常
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import android.util.Log; // 日志类
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import net.micode.notes.data.Notes; // 笔记数据类
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import net.micode.notes.data.Notes.CallNote; // 通话笔记数据类
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import net.micode.notes.data.Notes.NoteColumns; // 笔记列数据类
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import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; // 小部件属性类
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import java.util.ArrayList; // 动态数组
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import java.util.HashSet; // 哈希集合
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public class DataUtils {
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public static final String TAG = "DataUtils"; // 日志标签
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// 批量删除笔记
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public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
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if (ids == null) {
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Log.d(TAG, "the ids is null"); // 如果id为null,记录日志并返回true
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return true;
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}
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if (ids.size() == 0) {
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Log.d(TAG, "no id is in the hashset"); // 如果哈希集中没有id,记录日志并返回true
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return true;
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}
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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for (long id : ids) {
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if(id == Notes.ID_ROOT_FOLDER) {
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Log.e(TAG, "Don't delete system folder root"); // 系统根文件夹不能删除,记录错误日志
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continue;
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}
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); // 创建删除操作
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operationList.add(builder.build()); // 添加到操作列表
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}
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try {
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); // 应用批量操作
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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()); // 删除失败,记录日志
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return false;
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}
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return true; // 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())); // 远程异常,记录错误日志
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} catch (OperationApplicationException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); // 操作应用异常,记录错误日志
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}
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return false; // 异常时返回false
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}
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// 将笔记移动到另一个文件夹
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public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
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ContentValues values = new ContentValues(); // 创建ContentValues对象
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values.put(NoteColumns.PARENT_ID, desFolderId); // 设置目标文件夹id
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values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); // 设置原始文件夹id
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values.put(NoteColumns.LOCAL_MODIFIED, 1); // 设置本地修改标志为1
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resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); // 更新笔记
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}
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// 批量将笔记移动到指定文件夹
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public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
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long folderId) {
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if (ids == null) {
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Log.d(TAG, "the ids is null"); // id为null时记录日志并返回true
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return true;
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}
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ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
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for (long id : ids) {
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ContentProviderOperation.Builder builder = ContentProviderOperation
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.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); // 创建更新操作
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builder.withValue(NoteColumns.PARENT_ID, folderId); // 设置目标文件夹id
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builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); // 设置本地修改标志为1
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operationList.add(builder.build()); // 添加到操作列表
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}
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try {
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ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); // 应用批量操作
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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()); // 删除失败,记录日志
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return false;
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}
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return true; // 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())); // 远程异常,记录错误日志
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} catch (OperationApplicationException e) {
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Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); // 操作应用异常,记录错误日志
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}
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return false; // 异常时返回false
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}
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/**
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* 获取所有非系统文件夹的数量
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*/
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public static int getUserFolderCount(ContentResolver resolver) {
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Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
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new String[] { "COUNT(*)" },
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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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if(cursor.moveToFirst()) {
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try {
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count = cursor.getInt(0); // 获取文件夹数量
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "get folder count failed:" + e.toString()); // 获取失败,记录错误日志
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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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}
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return count; // 返回文件夹数量
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}
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// 检查笔记在数据库中是否可见
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public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
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Cursor cursor = resolver.query(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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boolean exist = false;
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if (cursor != null) {
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if (cursor.getCount() > 0) {
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exist = true; // 笔记存在且可见
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}
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cursor.close();
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}
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return exist; // 返回笔记是否可见
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}
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// 检查笔记在数据库中是否存在
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public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
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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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if (cursor.getCount() > 0) {
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exist = true; // 笔记存在
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}
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cursor.close();
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}
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return exist; // 返回笔记是否存在
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}
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// 检查数据在数据库中是否存在
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public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
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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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if (cursor.getCount() > 0) {
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exist = true; // 数据存在
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}
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cursor.close();
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}
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return exist; // 返回数据是否存在
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}
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// 检查指定名称的文件夹是否可见
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public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
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Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, 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 }, null);
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boolean exist = false;
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if(cursor != null) {
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if(cursor.getCount() > 0) {
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exist = true; // 文件夹存在且可见
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}
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cursor.close();
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}
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return exist; // 返回文件夹是否可见
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}
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// 获取文件夹笔记小部件
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public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
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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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new String[] { String.valueOf(folderId) },
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null);
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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<AppWidgetAttribute>();
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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); // 获取小部件ID
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widget.widgetType = c.getInt(1); // 获取小部件类型
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set.add(widget); // 添加到集合中
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, e.toString()); // 异常,记录错误日志
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}
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} while (c.moveToNext());
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}
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c.close(); // 关闭游标
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}
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return set; // 返回小部件集合
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}
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// 根据笔记ID获取呼叫号码
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public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
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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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new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
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null);
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if (cursor != null && cursor.moveToFirst()) {
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try {
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return cursor.getString(0); // 获取呼叫号码
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "Get call number fails " + e.toString()); // 异常,记录错误日志
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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 ""; // 未找到时返回空字符串
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}
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// 根据电话号码和呼叫日期获取笔记ID
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public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
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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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+ 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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if (cursor != null) {
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if (cursor.moveToFirst()) {
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try {
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return cursor.getLong(0); // 获取笔记ID
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, "Get call note id fails " + e.toString()); // 异常,记录错误日志
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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; // 未找到时返回0
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}
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// 根据ID获取笔记摘要
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public static String getSnippetById(ContentResolver resolver, long noteId) {
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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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new String [] { String.valueOf(noteId)},
|
|
|
|
|
null);
|
|
|
|
|
|
|
|
|
|
if (cursor != null) {
|
|
|
|
|
String snippet = "";
|
|
|
|
|
if (cursor.moveToFirst()) {
|
|
|
|
|
snippet = cursor.getString(0); // 获取摘要
|
|
|
|
|
}
|
|
|
|
|
cursor.close(); // 关闭游标
|
|
|
|
|
return snippet; // 返回摘要
|
|
|
|
|
}
|
|
|
|
|
throw new IllegalArgumentException("Note is not found with id: " + noteId); // 未找到时抛出异常
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 获取格式化后的摘要
|
|
|
|
|
public static String getFormattedSnippet(String snippet) {
|
|
|
|
|
if (snippet != null) {
|
|
|
|
|
snippet = snippet.trim(); // 去除首尾空白
|
|
|
|
|
int index = snippet.indexOf('\n'); // 查找换行符位置
|
|
|
|
|
if (index != -1) {
|
|
|
|
|
snippet = snippet.substring(0, index); // 截取到换行符之前的部分
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return snippet; // 返回格式化后的摘要
|
|
|
|
|
}
|
|
|
|
|
}
|