From 4604c5513316fe5e0b9bad7a27393e2a93466d23 Mon Sep 17 00:00:00 2001 From: CokeCHEN <3265434969@qq.com> Date: Wed, 14 May 2025 00:37:57 +0800 Subject: [PATCH] =?UTF-8?q?=E8=A2=81=E6=96=8C=E6=8F=90=E4=BA=A4?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- gitcjxyb | 1 + src/data/data/Contact.java | 89 ++++++ src/data/data/Notes.java | 294 ++++++++++++++++++ src/data/data/NotesDatabaseHelper.java | 407 +++++++++++++++++++++++++ src/data/data/NotesProvider.java | 331 ++++++++++++++++++++ 5 files changed, 1122 insertions(+) create mode 160000 gitcjxyb create mode 100644 src/data/data/Contact.java create mode 100644 src/data/data/Notes.java create mode 100644 src/data/data/NotesDatabaseHelper.java create mode 100644 src/data/data/NotesProvider.java diff --git a/gitcjxyb b/gitcjxyb new file mode 160000 index 0000000..b160568 --- /dev/null +++ b/gitcjxyb @@ -0,0 +1 @@ +Subproject commit b1605689833d44c388b0edac05ee5fbbe91b4eda diff --git a/src/data/data/Contact.java b/src/data/data/Contact.java new file mode 100644 index 0000000..0f39827 --- /dev/null +++ b/src/data/data/Contact.java @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.data; + +import android.content.Context; +import android.database.Cursor; +import android.provider.ContactsContract.CommonDataKinds.Phone; +import android.provider.ContactsContract.Data; +import android.telephony.PhoneNumberUtils; +import android.util.Log; + +import java.util.HashMap; + +/** + * 联系人工具类 + * 用于从手机通讯录中获取联系人信息 + */ +public class Contact { + private static HashMap sContactCache; // 联系人缓存 + private static final String TAG = "Contact"; // 日志标签 + + // 查询联系人信息的SQL选择语句 + private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER + + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" + + " AND " + Data.RAW_CONTACT_ID + " IN " + + "(SELECT raw_contact_id " + + " FROM phone_lookup" + + " WHERE min_match = '+')"; + + /** + * 根据电话号码获取联系人姓名 + * @param context 上下文对象 + * @param phoneNumber 电话号码 + * @return 联系人姓名，如果找不到则返回null + */ + public static String getContact(Context context, String phoneNumber) { + // 初始化缓存 + if(sContactCache == null) { + sContactCache = new HashMap(); + } + + // 先从缓存中查找 + if(sContactCache.containsKey(phoneNumber)) { + return sContactCache.get(phoneNumber); + } + + // 构建查询条件 + String selection = CALLER_ID_SELECTION.replace("+", + PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); + + // 查询联系人数据库 + Cursor cursor = context.getContentResolver().query( + Data.CONTENT_URI, + new String [] { Phone.DISPLAY_NAME }, + selection, + new String[] { phoneNumber }, + null); + + if (cursor != null && cursor.moveToFirst()) { + try { + String name = cursor.getString(0); + sContactCache.put(phoneNumber, name); // 将结果存入缓存 + return name; + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, " Cursor get string error " + e.toString()); + return null; + } finally { + cursor.close(); + } + } else { + Log.d(TAG, "No contact matched with number:" + phoneNumber); + return null; + } + } +} \ No newline at end of file diff --git a/src/data/data/Notes.java b/src/data/data/Notes.java new file mode 100644 index 0000000..c5f40ca --- /dev/null +++ b/src/data/data/Notes.java @@ -0,0 +1,294 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.data; + +import android.net.Uri; + +/** + * 便签数据模型常量类 + * 定义了便签应用的核心常量、URI和数据库列名 + */ +public class Notes { + // ContentProvider的Authority + public static final String AUTHORITY = "micode_notes"; + // 日志标签 + public static final String TAG = "Notes"; + + // 便签类型常量 + public static final int TYPE_NOTE = 0; // 普通便签类型 + public static final int TYPE_FOLDER = 1; // 文件夹类型 + public static final int TYPE_SYSTEM = 2; // 系统文件夹类型 + + /** + * 系统文件夹标识符常量 + * {@link Notes#ID_ROOT_FOLDER } 是默认文件夹 + * {@link Notes#ID_TEMPARAY_FOLDER } 用于不属于任何文件夹的便签 + * {@link Notes#ID_CALL_RECORD_FOLDER} 用于存储通话记录 + */ + public static final int ID_ROOT_FOLDER = 0; // 根文件夹ID + public static final int ID_TEMPARAY_FOLDER = -1; // 临时文件夹ID + public static final int ID_CALL_RECORD_FOLDER = -2; // 通话记录文件夹ID + public static final int ID_TRASH_FOLER = -3; // 回收站文件夹ID + + // Intent附加数据键名 + public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; // 提醒日期 + public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; // 背景颜色ID + public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; // 小部件ID + public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type"; // 小部件类型 + public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; // 文件夹ID + public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; // 通话日期 + + // 小部件类型常量 + public static final int TYPE_WIDGET_INVALIDE = -1; // 无效小部件 + public static final int TYPE_WIDGET_2X = 0; // 2x大小小部件 + public static final int TYPE_WIDGET_4X = 1; // 4x大小小部件 + + /** + * 数据常量类 + */ + public static class DataConstants { + public static final String NOTE = TextNote.CONTENT_ITEM_TYPE; // 普通便签类型 + public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE; // 通话记录便签类型 + } + + /** + * 查询所有便签和文件夹的URI + */ + public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note"); + + /** + * 查询数据的URI + */ + public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data"); + + /** + * 便签表列定义接口 + */ + public interface NoteColumns { + /** + * 行的唯一ID + *

类型: INTEGER (long)

+ */ + public static final String ID = "_id"; + + /** + * 便签或文件夹的父ID + *

类型: INTEGER (long)

+ */ + public static final String PARENT_ID = "parent_id"; + + /** + * 便签或文件夹的创建日期 + *

类型: INTEGER (long)

+ */ + public static final String CREATED_DATE = "created_date"; + + /** + * 最后修改日期 + *

类型: INTEGER (long)

+ */ + public static final String MODIFIED_DATE = "modified_date"; + + /** + * 提醒日期 + *

类型: INTEGER (long)

+ */ + public static final String ALERTED_DATE = "alert_date"; + + /** + * 文件夹名称或便签的文本内容 + *

类型: TEXT

+ */ + public static final String SNIPPET = "snippet"; + + /** + * 便签的小部件ID + *

类型: INTEGER (long)

+ */ + public static final String WIDGET_ID = "widget_id"; + + /** + * 便签的小部件类型 + *

类型: INTEGER (long)

+ */ + public static final String WIDGET_TYPE = "widget_type"; + + /** + * 便签背景颜色的ID + *

类型: INTEGER (long)

+ */ + public static final String BG_COLOR_ID = "bg_color_id"; + + /** + * 是否有附件 + * 对于文本便签，没有附件；对于多媒体便签，至少有一个附件 + *

类型: INTEGER

+ */ + public static final String HAS_ATTACHMENT = "has_attachment"; + + /** + * 文件夹中的便签数量 + *

类型: INTEGER (long)

+ */ + public static final String NOTES_COUNT = "notes_count"; + + /** + * 文件类型：文件夹或便签 + *

类型: INTEGER

+ */ + public static final String TYPE = "type"; + + /** + * 最后同步ID + *

类型: INTEGER (long)

+ */ + public static final String SYNC_ID = "sync_id"; + + /** + * 本地修改标志 + *

类型: INTEGER

+ */ + public static final String LOCAL_MODIFIED = "local_modified"; + + /** + * 移动到临时文件夹前的原始父ID + *

类型: INTEGER

+ */ + public static final String ORIGIN_PARENT_ID = "origin_parent_id"; + + /** + * GTask ID + *

类型: TEXT

+ */ + public static final String GTASK_ID = "gtask_id"; + + /** + * 版本号 + *

类型: INTEGER (long)

+ */ + public static final String VERSION = "version"; + } + + /** + * 数据表列定义接口 + */ + public interface DataColumns { + /** + * 行的唯一ID + *

类型: INTEGER (long)

+ */ + public static final String ID = "_id"; + + /** + * 该行所表示项的MIME类型 + *

类型: Text

+ */ + public static final String MIME_TYPE = "mime_type"; + + /** + * 该数据所属便签的引用ID + *

类型: INTEGER (long)

+ */ + public static final String NOTE_ID = "note_id"; + + /** + * 便签或文件夹的创建日期 + *

类型: INTEGER (long)

+ */ + public static final String CREATED_DATE = "created_date"; + + /** + * 最后修改日期 + *

类型: INTEGER (long)

+ */ + public static final String MODIFIED_DATE = "modified_date"; + + /** + * 数据内容 + *

类型: TEXT

+ */ + public static final String CONTENT = "content"; + + /** + * 通用数据列，含义由{@link #MIMETYPE}决定，用于整数数据类型 + *

类型: INTEGER

+ */ + public static final String DATA1 = "data1"; + + /** + * 通用数据列，含义由{@link #MIMETYPE}决定，用于整数数据类型 + *

类型: INTEGER

+ */ + public static final String DATA2 = "data2"; + + /** + * 通用数据列，含义由{@link #MIMETYPE}决定，用于TEXT数据类型 + *

类型: TEXT

+ */ + public static final String DATA3 = "data3"; + + /** + * 通用数据列，含义由{@link #MIMETYPE}决定，用于TEXT数据类型 + *

类型: TEXT

+ */ + public static final String DATA4 = "data4"; + + /** + * 通用数据列，含义由{@link #MIMETYPE}决定，用于TEXT数据类型 + *

类型: TEXT

+ */ + public static final String DATA5 = "data5"; + } + + /** + * 文本便签数据类 + */ + public static final class TextNote implements DataColumns { + /** + * 指示文本是否为清单模式的标志 + *

类型: Integer 1:清单模式 0:普通模式

+ */ + public static final String MODE = DATA1; + + public static final int MODE_CHECK_LIST = 1; // 清单模式 + + public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note"; // 内容类型 + public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note"; // 内容项类型 + public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note"); // 内容URI + } + + /** + * 通话记录便签数据类 + */ + public static final class CallNote implements DataColumns { + /** + * 该记录的通话日期 + *

类型: INTEGER (long)

+ */ + public static final String CALL_DATE = DATA1; + + /** + * 该记录的电话号码 + *

类型: TEXT

+ */ + public static final String PHONE_NUMBER = DATA3; + + public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note"; // 内容类型 + public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note"; // 内容项类型 + public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note"); // 内容URI + } +} \ No newline at end of file diff --git a/src/data/data/NotesDatabaseHelper.java b/src/data/data/NotesDatabaseHelper.java new file mode 100644 index 0000000..7478b7c --- /dev/null +++ b/src/data/data/NotesDatabaseHelper.java @@ -0,0 +1,407 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.data; + +import android.content.ContentValues; +import android.content.Context; +import android.database.sqlite.SQLiteDatabase; +import android.database.sqlite.SQLiteOpenHelper; +import android.util.Log; + +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.DataConstants; +import net.micode.notes.data.Notes.NoteColumns; + +/** + * 便签数据库帮助类 + * 负责数据库的创建、升级和管理 + */ +public class NotesDatabaseHelper extends SQLiteOpenHelper { + private static final String DB_NAME = "note.db"; // 数据库名称 + private static final int DB_VERSION = 4; // 数据库版本 + private static final String TAG = "NotesDatabaseHelper"; // 日志标签 + private static NotesDatabaseHelper mInstance; // 单例实例 + + /** + * 表名定义接口 + */ + public interface TABLE { + public static final String NOTE = "note"; // 便签表 + public static final String DATA = "data"; // 数据表 + } + + // 创建便签表的SQL语句 + private static final String CREATE_NOTE_TABLE_SQL = + "CREATE TABLE " + TABLE.NOTE + "(" + + NoteColumns.ID + " INTEGER PRIMARY KEY," + + NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," + + NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," + + NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + + ")"; + + // 创建数据表的SQL语句 + private static final String CREATE_DATA_TABLE_SQL = + "CREATE TABLE " + TABLE.DATA + "(" + + DataColumns.ID + " INTEGER PRIMARY KEY," + + DataColumns.MIME_TYPE + " TEXT NOT NULL," + + DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA1 + " INTEGER," + + DataColumns.DATA2 + " INTEGER," + + DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + + ")"; + + // 创建数据表note_id索引的SQL语句 + private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = + "CREATE INDEX IF NOT EXISTS note_id_index ON " + + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");"; + + /** + * 触发器：当更新便签的父ID时增加文件夹的便签计数 + */ + private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = + "CREATE TRIGGER increase_folder_count_on_update "+ + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + + " END"; + + /** + * 触发器：当更新便签的父ID时减少原文件夹的便签计数 + */ + private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = + "CREATE TRIGGER decrease_folder_count_on_update " + + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + + " AND " + NoteColumns.NOTES_COUNT + ">0" + ";" + + " END"; + + /** + * 触发器：当插入新便签时增加文件夹的便签计数 + */ + private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER = + "CREATE TRIGGER increase_folder_count_on_insert " + + " AFTER INSERT ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + + " END"; + + /** + * 触发器：当删除便签时减少文件夹的便签计数 + */ + private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER = + "CREATE TRIGGER decrease_folder_count_on_delete " + + " AFTER DELETE ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + + " AND " + NoteColumns.NOTES_COUNT + ">0;" + + " END"; + + /** + * 触发器：当插入类型为{@link DataConstants#NOTE}的数据时更新便签内容 + */ + private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER = + "CREATE TRIGGER update_note_content_on_insert " + + " AFTER INSERT ON " + TABLE.DATA + + " WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + + " END"; + + /** + * 触发器：当更新类型为{@link DataConstants#NOTE}的数据时更新便签内容 + */ + private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER = + "CREATE TRIGGER update_note_content_on_update " + + " AFTER UPDATE ON " + TABLE.DATA + + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + + " END"; + + /** + * 触发器：当删除类型为{@link DataConstants#NOTE}的数据时清空便签内容 + */ + private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER = + "CREATE TRIGGER update_note_content_on_delete " + + " AFTER delete ON " + TABLE.DATA + + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.SNIPPET + "=''" + + " WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" + + " END"; + + /** + * 触发器：当删除便签时删除其关联的数据 + */ + private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER = + "CREATE TRIGGER delete_data_on_delete " + + " AFTER DELETE ON " + TABLE.NOTE + + " BEGIN" + + " DELETE FROM " + TABLE.DATA + + " WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" + + " END"; + + /** + * 触发器：当删除文件夹时删除其下的便签 + */ + private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER = + "CREATE TRIGGER folder_delete_notes_on_delete " + + " AFTER DELETE ON " + TABLE.NOTE + + " BEGIN" + + " DELETE FROM " + TABLE.NOTE + + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + + " END"; + + /** + * 触发器：当移动文件夹到回收站时移动其下的便签到回收站 + */ + private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER = + "CREATE TRIGGER folder_move_notes_on_trash " + + " AFTER UPDATE ON " + TABLE.NOTE + + " WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + + " END"; + + /** + * 构造函数 + * @param context 上下文对象 + */ + public NotesDatabaseHelper(Context context) { + super(context, DB_NAME, null, DB_VERSION); + } + + /** + * 创建便签表 + * @param db SQLiteDatabase对象 + */ + public void createNoteTable(SQLiteDatabase db) { + db.execSQL(CREATE_NOTE_TABLE_SQL); + reCreateNoteTableTriggers(db); + createSystemFolder(db); + Log.d(TAG, "note table has been created"); + } + + /** + * 重新创建便签表触发器 + * @param db SQLiteDatabase对象 + */ + private void reCreateNoteTableTriggers(SQLiteDatabase db) { + db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update"); + db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update"); + db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete"); + db.execSQL("DROP TRIGGER IF EXISTS delete_data_on_delete"); + db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_insert"); + db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete"); + db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash"); + + db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); + db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); + db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER); + db.execSQL(NOTE_DELETE_DATA_ON_DELETE_TRIGGER); + db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER); + db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER); + db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER); + } + + /** + * 创建系统文件夹 + * @param db SQLiteDatabase对象 + */ + private void createSystemFolder(SQLiteDatabase db) { + ContentValues values = new ContentValues(); + + // 创建通话记录文件夹 + values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + + // 创建根文件夹 + values.clear(); + values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + + // 创建临时文件夹 + values.clear(); + values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + + // 创建回收站文件夹 + values.clear(); + values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + } + + /** + * 创建数据表 + * @param db SQLiteDatabase对象 + */ + public void createDataTable(SQLiteDatabase db) { + db.execSQL(CREATE_DATA_TABLE_SQL); + reCreateDataTableTriggers(db); + db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL); + Log.d(TAG, "data table has been created"); + } + + /** + * 重新创建数据表触发器 + * @param db SQLiteDatabase对象 + */ + private void reCreateDataTableTriggers(SQLiteDatabase db) { + db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete"); + + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER); + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER); + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); + } + + /** + * 获取NotesDatabaseHelper实例(单例模式) + * @param context 上下文对象 + * @return NotesDatabaseHelper实例 + */ + static synchronized NotesDatabaseHelper getInstance(Context context) { + if (mInstance == null) { + mInstance = new NotesDatabaseHelper(context); + } + return mInstance; + } + + @Override + public void onCreate(SQLiteDatabase db) { + createNoteTable(db); // 创建便签表 + createDataTable(db); // 创建数据表 + } + + @Override + public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { + boolean reCreateTriggers = false; + boolean skipV2 = false; + + // 版本1升级到版本2 + if (oldVersion == 1) { + upgradeToV2(db); + skipV2 = true; // 这个升级包含从v2到v3的升级 + oldVersion++; + } + + // 版本2升级到版本3 + if (oldVersion == 2 && !skipV2) { + upgradeToV3(db); + reCreateTriggers = true; + oldVersion++; + } + + // 版本3升级到版本4 + if (oldVersion == 3) { + upgradeToV4(db); + oldVersion++; + } + + // 如果需要，重新创建触发器 + if (reCreateTriggers) { + reCreateNoteTableTriggers(db); + reCreateDataTableTriggers(db); + } + + if (oldVersion != newVersion) { + throw new IllegalStateException("Upgrade notes database to version " + newVersion + + "fails"); + } + } + + /** + * 升级到版本2 + * @param db SQLiteDatabase对象 + */ + private void upgradeToV2(SQLiteDatabase db) { + db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE); + db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA); + createNoteTable(db); // 重新创建便签表 + createDataTable(db); // 重新创建数据表 + } + + /** + * 升级到版本3 + * @param db SQLiteDatabase对象 + */ + private void upgradeToV3(SQLiteDatabase db) { + // 删除不再使用的触发器 + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update"); + + // 添加gtask_id列 + db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID + + " TEXT NOT NULL DEFAULT ''"); + + // 添加回收站系统文件夹 + ContentValues values = new ContentValues(); + values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + } + + /** + * 升级到版本4 + * @param db SQLiteDatabase对象 + */ + private void upgradeToV4(SQLiteDatabase db) { + // 添加version列 + db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + + " INTEGER NOT NULL DEFAULT 0"); + } +} \ No newline at end of file diff --git a/src/data/data/NotesProvider.java b/src/data/data/NotesProvider.java new file mode 100644 index 0000000..815c7b0 --- /dev/null +++ b/src/data/data/NotesProvider.java @@ -0,0 +1,331 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.data; + +import android.app.SearchManager; +import android.content.ContentProvider; +import android.content.ContentUris; +import android.content.ContentValues; +import android.content.Intent; +import android.content.UriMatcher; +import android.database.Cursor; +import android.database.sqlite.SQLiteDatabase; +import android.net.Uri; +import android.text.TextUtils; +import android.util.Log; + +import net.micode.notes.R; +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.data.NotesDatabaseHelper.TABLE; + +/** + * 便签内容提供者类 + * 提供对便签数据的CRUD操作接口 + */ +public class NotesProvider extends ContentProvider { + private static final UriMatcher mMatcher; // URI匹配器 + private NotesDatabaseHelper mHelper; // 数据库帮助类 + private static final String TAG = "NotesProvider"; // 日志标签 + + // URI匹配码 + private static final int URI_NOTE = 1; // 便签表URI + private static final int URI_NOTE_ITEM = 2; // 单个便签URI + private static final int URI_DATA = 3; // 数据表URI + private static final int URI_DATA_ITEM = 4; // 单个数据项URI + private static final int URI_SEARCH = 5; // 搜索URI + private static final int URI_SEARCH_SUGGEST = 6; // 搜索建议URI + + static { + // 初始化URI匹配器 + mMatcher = new UriMatcher(UriMatcher.NO_MATCH); + mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE); + mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM); + mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA); + mMatcher.addURI(Notes.AUTHORITY, "data/#", URI_DATA_ITEM); + mMatcher.addURI(Notes.AUTHORITY, "search", URI_SEARCH); + mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, URI_SEARCH_SUGGEST); + mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", URI_SEARCH_SUGGEST); + } + + /** + * 搜索结果的投影列 + * x'0A'代表SQLite中的'\n'字符。对于搜索结果中的标题和内容， + * 我们将修剪'\n'和空格以显示更多信息。 + */ + private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + "," + + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + "," + + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + "," + + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2 + "," + + R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + "," + + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + "," + + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA; + + // 便签片段搜索查询SQL + private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION + + " FROM " + TABLE.NOTE + + " WHERE " + NoteColumns.SNIPPET + " LIKE ?" + + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE; + + @Override + public boolean onCreate() { + // 初始化数据库帮助类 + mHelper = NotesDatabaseHelper.getInstance(getContext()); + return true; + } + + @Override + public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, + String sortOrder) { + Cursor c = null; + SQLiteDatabase db = mHelper.getReadableDatabase(); + String id = null; + + // 根据URI匹配不同类型的数据查询 + switch (mMatcher.match(uri)) { + case URI_NOTE: + // 查询便签表 + c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null, + sortOrder); + break; + case URI_NOTE_ITEM: + // 查询单个便签 + id = uri.getPathSegments().get(1); + c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id + + parseSelection(selection), selectionArgs, null, null, sortOrder); + break; + case URI_DATA: + // 查询数据表 + c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null, + sortOrder); + break; + case URI_DATA_ITEM: + // 查询单个数据项 + id = uri.getPathSegments().get(1); + c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id + + parseSelection(selection), selectionArgs, null, null, sortOrder); + break; + case URI_SEARCH: + case URI_SEARCH_SUGGEST: + // 处理搜索请求 + if (sortOrder != null || projection != null) { + throw new IllegalArgumentException( + "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query"); + } + + String searchString = null; + if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) { + if (uri.getPathSegments().size() > 1) { + searchString = uri.getPathSegments().get(1); + } + } else { + searchString = uri.getQueryParameter("pattern"); + } + + if (TextUtils.isEmpty(searchString)) { + return null; + } + + try { + searchString = String.format("%%%s%%", searchString); + c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY, + new String[] { searchString }); + } catch (IllegalStateException ex) { + Log.e(TAG, "got exception: " + ex.toString()); + } + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + if (c != null) { + c.setNotificationUri(getContext().getContentResolver(), uri); + } + return c; + } + + @Override + public Uri insert(Uri uri, ContentValues values) { + SQLiteDatabase db = mHelper.getWritableDatabase(); + long dataId = 0, noteId = 0, insertedId = 0; + + // 根据URI匹配不同类型的数据插入 + switch (mMatcher.match(uri)) { + case URI_NOTE: + insertedId = noteId = db.insert(TABLE.NOTE, null, values); + break; + case URI_DATA: + if (values.containsKey(DataColumns.NOTE_ID)) { + noteId = values.getAsLong(DataColumns.NOTE_ID); + } else { + Log.d(TAG, "Wrong data format without note id:" + values.toString()); + } + insertedId = dataId = db.insert(TABLE.DATA, null, values); + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + + // 通知数据变更 + if (noteId > 0) { + getContext().getContentResolver().notifyChange( + ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null); + } + + if (dataId > 0) { + getContext().getContentResolver().notifyChange( + ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null); + } + + return ContentUris.withAppendedId(uri, insertedId); + } + + @Override + public int delete(Uri uri, String selection, String[] selectionArgs) { + int count = 0; + String id = null; + SQLiteDatabase db = mHelper.getWritableDatabase(); + boolean deleteData = false; + + // 根据URI匹配不同类型的数据删除 + switch (mMatcher.match(uri)) { + case URI_NOTE: + selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 "; + count = db.delete(TABLE.NOTE, selection, selectionArgs); + break; + case URI_NOTE_ITEM: + id = uri.getPathSegments().get(1); + /** + * 小于0的ID是系统文件夹，不允许删除 + */ + long noteId = Long.valueOf(id); + if (noteId <= 0) { + break; + } + count = db.delete(TABLE.NOTE, + NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs); + break; + case URI_DATA: + count = db.delete(TABLE.DATA, selection, selectionArgs); + deleteData = true; + break; + case URI_DATA_ITEM: + id = uri.getPathSegments().get(1); + count = db.delete(TABLE.DATA, + DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs); + deleteData = true; + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + if (count > 0) { + if (deleteData) { + getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); + } + getContext().getContentResolver().notifyChange(uri, null); + } + return count; + } + + @Override + public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { + int count = 0; + String id = null; + SQLiteDatabase db = mHelper.getWritableDatabase(); + boolean updateData = false; + + // 根据URI匹配不同类型的数据更新 + switch (mMatcher.match(uri)) { + case URI_NOTE: + increaseNoteVersion(-1, selection, selectionArgs); + count = db.update(TABLE.NOTE, values, selection, selectionArgs); + break; + case URI_NOTE_ITEM: + id = uri.getPathSegments().get(1); + increaseNoteVersion(Long.valueOf(id), selection, selectionArgs); + count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id + + parseSelection(selection), selectionArgs); + break; + case URI_DATA: + count = db.update(TABLE.DATA, values, selection, selectionArgs); + updateData = true; + break; + case URI_DATA_ITEM: + id = uri.getPathSegments().get(1); + count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id + + parseSelection(selection), selectionArgs); + updateData = true; + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + + if (count > 0) { + if (updateData) { + getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); + } + getContext().getContentResolver().notifyChange(uri, null); + } + return count; + } + + /** + * 解析选择条件 + * @param selection 原始选择条件 + * @return 解析后的选择条件 + */ + private String parseSelection(String selection) { + return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); + } + + /** + * 增加便签版本号 + * @param id 便签ID + * @param selection 选择条件 + * @param selectionArgs 选择参数 + */ + private void increaseNoteVersion(long id, String selection, String[] selectionArgs) { + StringBuilder sql = new StringBuilder(120); + sql.append("UPDATE "); + sql.append(TABLE.NOTE); + sql.append(" SET "); + sql.append(NoteColumns.VERSION); + sql.append("=" + NoteColumns.VERSION + "+1 "); + + if (id > 0 || !TextUtils.isEmpty(selection)) { + sql.append(" WHERE "); + } + if (id > 0) { + sql.append(NoteColumns.ID + "=" + String.valueOf(id)); + } + if (!TextUtils.isEmpty(selection)) { + String selectString = id > 0 ? parseSelection(selection) : selection; + for (String args : selectionArgs) { + selectString = selectString.replaceFirst("\\?", args); + } + sql.append(selectString); + } + + mHelper.getWritableDatabase().execSQL(sql.toString()); + } + + @Override + public String getType(Uri uri) { + // TODO Auto-generated method stub + return null; + } +} \ No newline at end of file