Merge pull request '3' (#3) from a-branch into main

poz2c78vw 2 months ago
commit ed88488b41

@ -0,0 +1,87 @@
/*
* 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; // 导入Android上下文类用于访问系统资源
import android.database.Cursor; // 导入Android游标类用于查询数据库
import android.provider.ContactsContract.CommonDataKinds.Phone; // 导入Android联系人电话信息类
import android.provider.ContactsContract.Data; // 导入Android联系人数据类
import android.telephony.PhoneNumberUtils; // 导入Android电话号码工具类
import android.util.Log; // 导入Android日志工具类
import java.util.HashMap; // 导入Java哈希表类用于缓存查询结果
public class Contact {
// 静态的哈希表,用于缓存电话号码和对应的联系人姓名
private static HashMap<String, String> sContactCache;
// 日志标签,用于在日志中标识来自该类的消息
private static final String TAG = "Contact";
// SQL查询条件用于查找与给定电话号码匹配的联系人信息
// 使用PHONE_NUMBERS_EQUAL函数比较电话号码确保号码格式的一致性
// 限制数据类型为电话号码类型,并通过子查询确保电话号码的最小匹配字符为'+'
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 = '+')";
// 根据给定的电话号码获取联系人的姓名
public static String getContact(Context context, String phoneNumber) {
// 如果缓存为空,则初始化缓存
if(sContactCache == null) {
sContactCache = new HashMap<String, String>();
}
// 检查缓存中是否已有该电话号码对应的联系人姓名
if(sContactCache.containsKey(phoneNumber)) {
return sContactCache.get(phoneNumber); // 如果存在,则直接返回缓存中的姓名
}
// 构造SQL查询条件将占位符"+"替换为电话号码的最小匹配字符
String selection = CALLER_ID_SELECTION.replace("+",
PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
// 执行数据库查询,获取与电话号码匹配的联系人姓名
Cursor cursor = context.getContentResolver().query(
Data.CONTENT_URI, // 查询联系人数据表
new String [] { Phone.DISPLAY_NAME }, // 需要查询的字段:联系人显示名称
selection, // 查询条件
new String[] { phoneNumber }, // 查询条件中的占位符参数
null); // 排序条件这里为null表示不排序
// 检查查询结果是否为空且是否可以移动到第一行
if (cursor != null && cursor.moveToFirst()) {
try {
String name = cursor.getString(0); // 获取联系人显示名称
sContactCache.put(phoneNumber, name); // 将查询结果存入缓存
return name; // 返回联系人姓名
} catch (IndexOutOfBoundsException e) {
// 如果发生数组越界异常记录错误日志并返回null
Log.e(TAG, " Cursor get string error " + e.toString());
return null;
} finally {
cursor.close(); // 关闭游标,释放资源
}
} else {
// 如果没有找到匹配的联系人记录调试日志并返回null
Log.d(TAG, "No contact matched with number:" + phoneNumber);
return null;
}
}
}

@ -0,0 +1,298 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* 使
*
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*
*
*
*
*
*/
package net.micode.notes.data;
import android.net.Uri;
// 定义了一个名为Notes的类包含了与笔记应用相关的常量和接口
public class Notes {
// 定义了Content Provider的权限字符串
public static final String AUTHORITY = "micode_notes";
// 定义了日志标签字符串
public static final String TAG = "Notes";
// 定义了笔记类型的常量
public static final int TYPE_NOTE = 0; // 笔记类型
public static final int TYPE_FOLDER = 1; // 文件夹类型
public static final int TYPE_SYSTEM = 2; // 系统类型
/**
* ID
* {@link Notes#ID_ROOT_FOLDER }
* {@link Notes#ID_TEMPARAY_FOLDER }
* {@link Notes#ID_CALL_RECORD_FOLDER}
* {@link Notes#ID_TRASH_FOLER}
*/
public static final int ID_ROOT_FOLDER = 0;
public static final int ID_TEMPARAY_FOLDER = -1;
public static final int ID_CALL_RECORD_FOLDER = -2;
public static final int ID_TRASH_FOLER = -3;
// 定义了一些Intent的extra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
// 定义了小部件类型的常量
public static final int TYPE_WIDGET_INVALIDE = -1; // 无效的小部件
public static final int TYPE_WIDGET_2X = 0; // 2x尺寸的小部件
public static final int TYPE_WIDGET_4X = 1; // 4x尺寸的小部件
// 定义一个内部类DataConstants包含一些与数据类型相关的常量
public static class DataConstants {
// 定义了文本笔记的数据类型
public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
// 定义了通话笔记的数据类型
public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;
}
/**
* Uri
* content://micode_notes/note
*/
public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
/**
* Uri
* content://micode_notes/data
*/
public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
// 定义了一个接口NoteColumns包含了一些与笔记和文件夹相关的列名
public interface NoteColumns {
/**
* ID
* <P> INTEGER (long) </P>
*/
public static final String ID = "_id";
/**
* ID
* <P> INTEGER (long) </P>
*/
public static final String PARENT_ID = "parent_id";
/**
*
* <P> INTEGER (long) </P>
*/
public static final String CREATED_DATE = "created_date";
/**
*
* <P> INTEGER (long) </P>
*/
public static final String MODIFIED_DATE = "modified_date";
/**
*
* <P> INTEGER (long) </P>
*/
public static final String ALERTED_DATE = "alert_date";
/**
*
* <P> TEXT </P>
*/
public static final String SNIPPET = "snippet";
/**
* ID
* <P> INTEGER (long) </P>
*/
public static final String WIDGET_ID = "widget_id";
/**
*
* <P> INTEGER (long) </P>
*/
public static final String WIDGET_TYPE = "widget_type";
/**
* ID
* <P> INTEGER (long) </P>
*/
public static final String BG_COLOR_ID = "bg_color_id";
/**
*
* <P> INTEGER </P>
*/
public static final String HAS_ATTACHMENT = "has_attachment";
/**
*
* <P> INTEGER (long) </P>
*/
public static final String NOTES_COUNT = "notes_count";
/**
*
* <P> INTEGER </P>
*/
public static final String TYPE = "type";
/**
* ID
* <P> INTEGER (long) </P>
*/
public static final String SYNC_ID = "sync_id";
/**
*
* <P> INTEGER </P>
*/
public static final String LOCAL_MODIFIED = "local_modified";
/**
* ID
* <P> INTEGER </P>
*/
public static final String ORIGIN_PARENT_ID = "origin_parent_id";
/**
* GoogleID
* <P> TEXT </P>
*/
public static final String GTASK_ID = "gtask_id";
/**
*
* <P> INTEGER (long) </P>
*/
public static final String VERSION = "version";
}
// 定义了一个接口DataColumns包含了一些与数据相关的列名
public interface DataColumns {
/**
* ID
* <P> INTEGER (long) </P>
*/
public static final String ID = "_id";
/**
* MIME
* <P> TEXT </P>
*/
public static final String MIME_TYPE = "mime_type";
/**
* ID
* <P> INTEGER (long) </P>
*/
public static final String NOTE_ID = "note_id";
/**
*
* <P> INTEGER (long) </P>
*/
public static final String CREATED_DATE = "created_date";
/**
*
* <P> INTEGER (long) </P>
*/
public static final String MODIFIED_DATE = "modified_date";
/**
*
* <P> TEXT </P>
*/
public static final String CONTENT = "content";
/**
* {@link #MIME_TYPE}
* <P> INTEGER </P>
*/
public static final String DATA1 = "data1";
/**
* {@link #MIME_TYPE}
* <P> INTEGER </P>
*/
public static final String DATA2 = "data2";
/**
* {@link #MIME_TYPE}
* <P> TEXT </P>
*/
public static final String DATA3 = "data3";
/**
* {@link #MIME_TYPE}
* <P> TEXT </P>
*/
public static final String DATA4 = "data4";
/**
* {@link #MIME_TYPE}
* <P> TEXT </P>
*/
public static final String DATA5 = "data5";
}
// 定义了一个内部类TextNote继承自DataColumns表示文本笔记的数据结构
public static final class TextNote implements DataColumns {
/**
*
* <P> Integer 1: 0: </P>
*/
public static final String MODE = DATA1;
// 定义了文本笔记模式的常量
public static final int MODE_CHECK_LIST = 1;
// 定义了文本笔记的MIME类型
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
/**
* Uri
* content://micode_notes/text_note
*/
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
}
// 定义了一个内部类CallNote继承自DataColumns表示通话笔记的数据结构
public static final class CallNote implements DataColumns {
/**
*
* <P> INTEGER (long) </P>
*/
public static final String CALL_DATE = DATA1;
/**
*
* <P> TEXT </P>
*/
public static final String PHONE_NUMBER = DATA3;
// 定义了通话笔记的MIME类型
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
/**
* Uri
* content://micode_notes/call_note
*/
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
}
}

@ -0,0 +1,389 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* 使
*
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*
*
*
*
*
*/
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;
// NotesDatabaseHelper 是一个 SQLiteOpenHelper 类的子类,用于管理笔记应用的数据库
public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 定义了数据库名称
private static final String DB_NAME = "note.db";
// 定义了数据库版本号
private static final int DB_VERSION = 4;
// 定义了一个内部接口TABLE包含了表名常量
public interface TABLE {
public static final String NOTE = "note"; // 笔记表名
public static final String DATA = "data"; // 数据表名
}
// 定义了日志标签字符串
private static final String TAG = "NotesDatabaseHelper";
// 定义了单例实例
private static NotesDatabaseHelper mInstance;
// 定义了创建笔记表的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" +
")";
// 定义了创建 DATA 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 ''" +
")";
// 定义了创建数据表中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 + "); ";
/**
*
*/
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";
/**
*
*/
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";
/**
*
*/
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";
/**
*
*/
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";
/**
* {@link DataConstants#NOTE}
*/
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";
/**
* {@link DataConstants#NOTE}
*/
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";
/**
* {@link DataConstants#NOTE}
*/
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";
/**
*
*/
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";
/**
*
*/
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";
/**
*
*/
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,初始化数据库帮助器
public NotesDatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}
// 创建笔记表的方法
public void createNoteTable(SQLiteDatabase db) {
db.execSQL(CREATE_NOTE_TABLE_SQL);
reCreateNoteTableTriggers(db);
createSystemFolder(db);
Log.d(TAG, "note table has been created");
}
// 重新创建笔记表触发器的方法
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);
}
// 创建系统文件夹的方法
private void createSystemFolder(SQLiteDatabase db) {
ContentValues values = new ContentValues();
/**
*
*/
values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
/**
*
*/
values.clear();
values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
/**
*
*/
values.clear();
values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
/**
*
*/
values.clear();
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
}
// 创建数据表的方法
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的方法
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 单例实例的方法
static synchronized NotesDatabaseHelper getInstance(Context context) {
if (mInstance == null) {
mInstance = new NotesDatabaseHelper(context);
}
return mInstance;
}
// 当数据库第一次创建时调用的方法
@Override
public void onCreate(SQLiteDatabase db) {
createNoteTable(db);
createDataTable(db);
}
// 当数据库需要升级时调用的方法
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
boolean reCreateTriggers = false;
boolean skipV2 = false;
// 如果当前版本是1直接删除旧表并创建新表
if (oldVersion == 1) {
upgradeToV2(db);
skipV2 = true; // 这次升级包含了从v2到v3的升级
oldVersion++;
}
// 如果当前版本是2添加新的列并创建系统文件夹
if (oldVersion == 2 && !skipV2) {
upgradeToV3(db);
reCreateTriggers = true;
oldVersion++;
}
// 如果当前版本是3添加版本号列
if (oldVersion == 3) {
upgradeToV4(db);
oldVersion++;
}
// 如果需要重新创建触发器,调用相应的方法
if (reCreateTriggers) {
reCreateNoteTableTriggers(db);
reCreateDataTableTriggers(db);
}
// 如果升级失败,抛出异常
if (oldVersion != newVersion) {
throw new IllegalStateException("Upgrade notes database to version " + newVersion
+ " fails");
}
}
// 升级到数据库版本2的方法
private void upgradeToV2(SQLiteDatabase db) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE);
db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
createNoteTable(db);
createDataTable(db);
}
// 升级到数据库版本3的方法
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);
}
// 升级到数据库版本4的方法
private void upgradeToV4(SQLiteDatabase db) {
// 添加版本号列
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
+ " INTEGER NOT NULL DEFAULT 0");
}
}

@ -0,0 +1,342 @@
/*
* 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;
public class NotesProvider extends ContentProvider {
// UriMatcher用于匹配不同的URI请求返回相应的请求类型
private static final UriMatcher mMatcher;
// 数据库辅助类,用于创建和管理数据库
private NotesDatabaseHelper mHelper;
// 日志标签,便于调试和日志记录
private static final String TAG = "NotesProvider";
// 定义URI请求类型常量
private static final int URI_NOTE = 1;
private static final int URI_NOTE_ITEM = 2;
private static final int URI_DATA = 3;
private static final int URI_DATA_ITEM = 4;
private static final int URI_SEARCH = 5;
private static final int URI_SEARCH_SUGGEST = 6;
// 静态代码块在类加载时初始化UriMatcher
static {
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);
}
/**
* x'0A'sqlite'\n'
* '\n'便
*/
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;
// SQL查询语句用于根据搜索字符串查询笔记片段
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;
// 创建ContentProvider时调用初始化NotesDatabaseHelper
@Override
public boolean onCreate() {
mHelper = NotesDatabaseHelper.getInstance(getContext());
return true;
}
// 根据不同的URI请求类型执行查询操作
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
Cursor c = null;
SQLiteDatabase db = mHelper.getReadableDatabase();
String id = null;
switch (mMatcher.match(uri)) {
case URI_NOTE:
// 查询所有笔记
c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null,
sortOrder);
break;
case URI_NOTE_ITEM:
// 查询特定ID的笔记
id = uri.getPathSegments().get(1);
c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs, null, null, sortOrder);
break;
case URI_DATA:
// 查询所有笔记数据
c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null,
sortOrder);
break;
case URI_DATA_ITEM:
// 查询特定ID的笔记数据
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:
// 搜索时不允许指定排序条件、选择条件、选择参数或投影
if (sortOrder != null || projection != null) {
throw new IllegalArgumentException(
"不允许在搜索时指定排序条件、选择条件、选择参数或投影");
}
String searchString = null;
// 获取搜索字符串
if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) {
if (uri.getPathSegments().size() > 1) {
searchString = uri.getPathSegments().get(1);
}
} else {
searchString = uri.getQueryParameter("pattern");
}
// 如果搜索字符串为空返回null
if (TextUtils.isEmpty(searchString)) {
return null;
}
try {
// 格式化搜索字符串使其可以用于LIKE查询
searchString = String.format("%%%s%%", searchString);
// 执行搜索查询
c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY,
new String[] { searchString });
} catch (IllegalStateException ex) {
Log.e(TAG, "发生异常: " + ex.toString());
}
break;
default:
// 如果URI请求类型未知抛出异常
throw new IllegalArgumentException("未知的URI " + uri);
}
// 设置游标的通知URI以便内容变化时通知监听者
if (c != null) {
c.setNotificationUri(getContext().getContentResolver(), uri);
}
return c;
}
// 根据不同的URI请求类型插入数据
@Override
public Uri insert(Uri uri, ContentValues values) {
SQLiteDatabase db = mHelper.getWritableDatabase();
long dataId = 0, noteId = 0, insertedId = 0;
switch (mMatcher.match(uri)) {
case URI_NOTE:
// 插入新的笔记
insertedId = noteId = db.insert(TABLE.NOTE, null, values);
break;
case URI_DATA:
// 插入新的笔记数据
if (values.containsKey(DataColumns.NOTE_ID)) {
noteId = values.getAsLong(DataColumns.NOTE_ID);
} else {
Log.d(TAG, "数据格式错误缺少笔记ID:" + values.toString());
}
insertedId = dataId = db.insert(TABLE.DATA, null, values);
break;
default:
// 如果URI请求类型未知抛出异常
throw new IllegalArgumentException("未知的URI " + uri);
}
// 通知笔记URI变化
if (noteId > 0) {
getContext().getContentResolver().notifyChange(
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
}
// 通知数据URI变化
if (dataId > 0) {
getContext().getContentResolver().notifyChange(
ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
}
return ContentUris.withAppendedId(uri, insertedId);
}
// 根据不同的URI请求类型删除数据
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
int count = 0;
String id = null;
SQLiteDatabase db = mHelper.getWritableDatabase();
boolean deleteData = false;
switch (mMatcher.match(uri)) {
case URI_NOTE:
// 删除笔记时确保ID大于0
selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 ";
count = db.delete(TABLE.NOTE, selection, selectionArgs);
break;
case URI_NOTE_ITEM:
id = uri.getPathSegments().get(1);
long noteId = Long.valueOf(id);
// ID小于等于0的笔记为系统文件夹不允许删除
if (noteId <= 0) {
break;
}
// 删除特定ID的笔记
count = db.delete(TABLE.NOTE,
NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs);
break;
case URI_DATA:
// 删除笔记数据
count = db.delete(TABLE.DATA, selection, selectionArgs);
deleteData = true;
break;
case URI_DATA_ITEM:
id = uri.getPathSegments().get(1);
// 删除特定ID的笔记数据
count = db.delete(TABLE.DATA,
DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs);
deleteData = true;
break;
default:
// 如果URI请求类型未知抛出异常
throw new IllegalArgumentException("未知的URI " + uri);
}
// 如果有数据被删除通知URI变化
if (count > 0) {
if (deleteData) {
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
}
getContext().getContentResolver().notifyChange(uri, null);
}
return count;
}
// 根据不同的URI请求类型更新数据
@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;
switch (mMatcher.match(uri)) {
case URI_NOTE:
// 更新笔记时,增加笔记版本号
increaseNoteVersion(-1, selection, selectionArgs);
count = db.update(TABLE.NOTE, values, selection, selectionArgs);
break;
case URI_NOTE_ITEM:
id = uri.getPathSegments().get(1);
long noteId = Long.valueOf(id);
// 更新特定ID的笔记并增加笔记版本号
increaseNoteVersion(noteId, selection, selectionArgs);
count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs);
break;
case URI_DATA:
// 更新笔记数据
count = db.update(TABLE.DATA, values, selection, selectionArgs);
updateData = true;
break;
case URI_DATA_ITEM:
id = uri.getPathSegments().get(1);
// 更新特定ID的笔记数据
count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs);
updateData = true;
break;
default:
// 如果URI请求类型未知抛出异常
throw new IllegalArgumentException("未知的URI " + uri);
}
// 如果有数据被更新通知URI变化
if (count > 0) {
if (updateData) {
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
}
getContext().getContentResolver().notifyChange(uri, null);
}
return count;
}
// 解析选择条件字符串如果存在选择条件则添加到SQL查询中
private String parseSelection(String selection) {
return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : "");
}
// 增加笔记版本号
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 ");
// 构建WHERE子句
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);
}
// 执行更新操作
mHelper.getWritableDatabase().execSQL(sql.toString());
}
// 返回URI对应的数据类型这里未实现返回null
@Override
public String getType(Uri uri) {
// TODO Auto-generated method stub
return null;
}
}

@ -2,21 +2,13 @@
* 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.
*
* This class defines a Note object to manage note data, including its properties,
* local modifications, database interactions, and synchronization logic.
*/
// 定义了一个名为Note的类用于处理便签数据
package net.micode.notes.model;
import android.content.ContentProviderOperation;
import android.content.ContentProviderResult;
import android.content.ContentUris;
@ -35,216 +27,281 @@ import net.micode.notes.data.Notes.TextNote;
import java.util.ArrayList;
/**
* Note 便
* 便
*/
public class Note {
private ContentValues mNoteDiffValues; // 用于存储便签数据变化的ContentValues对象
private NoteData mNoteData; // 用于存储便签数据的私有类NoteData的对象
private static final String TAG = "Note"; // 用于日志标记的TAG
// 存储便签变化的字段,用于记录需要更新到数据库的数据
private ContentValues mNoteDiffValues;
// NoteData 是一个内部类,用于处理便签的具体数据,例如文本数据和通话记录数据
private NoteData mNoteData;
// 日志标记,用于记录调试信息
private static final String TAG = "Note";
/**
* Create a new note id for adding a new note to databases
* 便 ID
* @param context 访
* @param folderId ID便
* @return 便 ID
*/
public static synchronized long getNewNoteId(Context context, long folderId) {
// 创建一个新的便签ID用于将新的便签添加到数据库中
ContentValues values = new ContentValues();
// 创建时间和修改时间都设置为当前时间
long createdTime = System.currentTimeMillis();
values.put(NoteColumns.CREATED_DATE, createdTime);
values.put(NoteColumns.MODIFIED_DATE, createdTime);
// 设置便签的类型为普通便签
values.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
// 设置本地修改标志为 1 (表示有本地修改)
values.put(NoteColumns.LOCAL_MODIFIED, 1);
// 设置便签的父文件夹 ID
values.put(NoteColumns.PARENT_ID, folderId);
// 向数据库插入新便签并获取其 URI
Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);
// 提取便签 ID
long noteId = 0;
try {
noteId = Long.valueOf(uri.getPathSegments().get(1));
noteId = Long.valueOf(uri.getPathSegments().get(1)); // 获取 URI 的第二段作为便签 ID
} catch (NumberFormatException e) {
Log.e(TAG, "Get note id error :" + e.toString());
noteId = 0;
noteId = 0; // 如果解析失败,将便签 ID 设置为 0
}
// 如果便签 ID 无效,抛出异常
if (noteId == -1) {
throw new IllegalStateException("Wrong note id:" + noteId);
}
return noteId;
}
/**
* Note 便
*/
public Note() {
mNoteDiffValues = new ContentValues();
mNoteData = new NoteData();
mNoteDiffValues = new ContentValues(); // 初始化便签变化记录
mNoteData = new NoteData(); // 初始化便签数据对象
}
/**
* 便
* @param key
* @param value
*/
public void setNoteValue(String key, String value) {
// 设置便签的值
mNoteDiffValues.put(key, value);
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
mNoteDiffValues.put(key, value); // 设置键值对到 mNoteDiffValues 中
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记为本地修改
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 更新修改时间
}
/**
* 便
* @param key
* @param value
*/
public void setTextData(String key, String value) {
// 设置文本数据
mNoteData.setTextData(key, value);
mNoteData.setTextData(key, value); // 调用 NoteData 内部类的方法
}
/**
* 便 ID
* @param id ID
*/
public void setTextDataId(long id) {
// 设置文本数据ID
mNoteData.setTextDataId(id);
mNoteData.setTextDataId(id); // 调用 NoteData 内部类的方法
}
/**
* 便 ID
* @return ID
*/
public long getTextDataId() {
// 获取文本数据ID
return mNoteData.mTextDataId;
return mNoteData.mTextDataId; // 返回 NoteData 内部类中的文本数据 ID
}
/**
* ID
* @param id ID
*/
public void setCallDataId(long id) {
// 设置通话数据ID
mNoteData.setCallDataId(id);
mNoteData.setCallDataId(id); // 调用 NoteData 内部类的方法
}
/**
*
* @param key
* @param value
*/
public void setCallData(String key, String value) {
// 设置通话数据
mNoteData.setCallData(key, value);
mNoteData.setCallData(key, value); // 调用 NoteData 内部类的方法
}
/**
* 便
* @return 便 true false
*/
public boolean isLocalModified() {
// 检查是否有本地修改
// 检查便签变化记录或便签数据是否有本地修改
return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
}
/**
* 便
* @param context 访
* @param noteId 便 ID
* @return true false
*/
public boolean syncNote(Context context, long noteId) {
// 同步便签数据到数据库
// 如果便签 ID 无效,抛出异常
if (noteId <= 0) {
throw new IllegalArgumentException("Wrong note id:" + noteId);
}
// 如果没有本地修改,直接返回 true
if (!isLocalModified()) {
return true;
}
// 更新便签数据
// 将便签的变化记录更新到数据库中
if (context.getContentResolver().update(
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null,
null) == 0) {
Log.e(TAG, "Update note error, should not happen");
// Do not return, fall through
// 即使更新失败,不立即返回,继续处理
}
mNoteDiffValues.clear();
mNoteDiffValues.clear(); // 清空便签变化记录
// 更新便签数据信息
// 同步便签的具体数据到数据库
if (mNoteData.isLocalModified()
&& (mNoteData.pushIntoContentResolver(context, noteId) == null)) {
return false;
return false; // 如果数据同步失败,返回 false
}
return true;
return true; // 同步成功返回 true
}
/**
* NoteData Note 便
*/
private class NoteData {
private long mTextDataId;
private ContentValues mTextDataValues;
private long mCallDataId;
private ContentValues mCallDataValues;
private long mTextDataId; // 文本数据的唯一 ID
private ContentValues mTextDataValues; // 文本数据的键值对
private long mCallDataId; // 通话数据的唯一 ID
private ContentValues mCallDataValues; // 通话数据的键值对
// 日志标记
private static final String TAG = "NoteData";
/**
* NoteData
*/
public NoteData() {
mTextDataValues = new ContentValues();
mCallDataValues = new ContentValues();
mTextDataId = 0;
mCallDataId = 0;
mTextDataValues = new ContentValues(); // 初始化文本数据键值对
mCallDataValues = new ContentValues(); // 初始化通话数据键值对
mTextDataId = 0; // 初始化文本数据 ID
mCallDataId = 0; // 初始化通话数据 ID
}
/**
*
* @return true false
*/
boolean isLocalModified() {
// 检查是否有本地修改
// 检查文本数据或通话数据是否有本地修改
return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
}
/**
* ID
* @param id ID
*/
void setTextDataId(long id) {
// 设置文本数据ID
if(id <= 0) {
if (id <= 0) {
throw new IllegalArgumentException("Text data id should larger than 0");
}
mTextDataId = id;
mTextDataId = id; // 设置文本数据 ID
}
/**
* ID
* @param id ID
*/
void setCallDataId(long id) {
// 设置通话数据ID
if (id <= 0) {
throw new IllegalArgumentException("Call data id should larger than 0");
}
mCallDataId = id;
mCallDataId = id; // 设置通话数据 ID
}
/**
*
* @param key
* @param value
*/
void setCallData(String key, String value) {
// 设置通话数据
mCallDataValues.put(key, value);
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
mCallDataValues.put(key, value); // 添加键值对到通话数据中
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记便签为本地修改
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 更新修改时间
}
/**
*
* @param key
* @param value
*/
void setTextData(String key, String value) {
// 设置文本数据
mTextDataValues.put(key, value);
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
mTextDataValues.put(key, value); // 添加键值对到文本数据中
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记便签为本地修改
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 更新修改时间
}
/**
* 便 ()
* @param context
* @param noteId 便 ID
* @return URI null
*/
Uri pushIntoContentResolver(Context context, long noteId) {
// 将便签数据推送到内容解析器
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
// 批量操作列表
ArrayList<ContentProviderOperation> operationList = new ArrayList<>();
ContentProviderOperation.Builder builder = null;
if(mTextDataValues.size() > 0) {
// 处理文本数据
// 文本数据处理逻辑 (省略注释的细节部分与逻辑结构类似)
if (mTextDataValues.size() > 0) {
mTextDataValues.put(DataColumns.NOTE_ID, noteId);
if (mTextDataId == 0) {
// 插入新的文本数据
Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
mTextDataValues);
try {
setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
} catch (NumberFormatException e) {
Log.e(TAG, "Insert new text data fail with noteId" + noteId);
mTextDataValues.clear();
return null;
}
// 插入逻辑 (与通话数据类似)
} else {
// 更新文本数据
builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mTextDataId));
builder.withValues(mTextDataValues);
operationList.add(builder.build());
// 更新逻辑 (与通话数据类似)
}
mTextDataValues.clear();
}
if(mCallDataValues.size() > 0) {
// 处理通话数据
mCallDataValues.put(DataColumns.NOTE_ID, noteId);
if (mCallDataId == 0) {
// 插入新的通话数据
Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
mCallDataValues);
try {
setCallDataId(Long.valueOf(uri.getPathSegments().get(1)));
} catch (NumberFormatException e) {
Log.e(TAG, "Insert new call data fail with noteId" + noteId);
mCallDataValues.clear();
return null;
}
} else {
// 更新通话数据
builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mCallDataId));
builder.withValues(mCallDataValues);
operationList.add(builder.build());
}
mCallDataValues.clear();
}
// 通话数据处理逻辑 (省略类似文本数据的逻辑)
// ...
// 应用批量操作到数据库
if (operationList.size() > 0) {
try {
// 应用批量操作
ContentProviderResult[] results = context.getContentResolver().applyBatch(
Notes.AUTHORITY, operationList);
return (results == null || results.length == 0 || results[0] == null) ? null
: ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId);
} catch (RemoteException e) {
Log.e(TAG, String.format("%s: %s", e.toString(),
Log.e(TAG, "RemoteException during applyBatch: " + e.toString());
} catch (OperationApplicationException e) {
Log.e(TAG, "OperationApplicationException during applyBatch: " + e.toString());
}
}
return null; // 返回 null 表示操作失败
}
}
}

@ -2,16 +2,8 @@
* 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.
* This class is part of a note-taking application and implements the core logic
* for managing notes, including their content, metadata, widget integration, and database interaction.
*/
package net.micode.notes.model;
@ -31,338 +23,188 @@ import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.data.Notes.TextNote;
import net.micode.notes.tool.ResourceParser.NoteBgResources;
/**
* WorkingNote
*
*/
public class WorkingNote {
// Note for the working note
// 代表当前操作的笔记对象 (数据存储与更新逻辑封装在 Note 类中)
private Note mNote;
// Note Id
// 笔记的唯一标识 ID标记笔记在数据库中的主键
private long mNoteId;
// Note content
// 笔记的实际内容,通常是用户输入的文本
private String mContent;
// Note mode
// 笔记的模式,用于区分普通模式 (文本) 或清单模式
private int mMode;
// 提醒时间的时间戳 (毫秒),若为 0 则表示没有设置提醒
private long mAlertDate;
// 笔记的最后修改时间,自动更新以记录用户上一次编辑的时间
private long mModifiedDate;
// 背景颜色 ID用于确定显示笔记的背景样式
private int mBgColorId;
// 小部件的 ID用于与 Android AppWidget 系统关联
private int mWidgetId;
// 小部件的类型,用于区分笔记是否被小部件引用
private int mWidgetType;
// 笔记所属文件夹的 ID便于对笔记进行分类管理
private long mFolderId;
// 上下文对象,用于访问资源和系统服务
private Context mContext;
// 日志 TAG用于调试输出时标记来源
private static final String TAG = "WorkingNote";
// 标记笔记是否已被删除,删除后不会保存到数据库
private boolean mIsDeleted;
// 监听器接口,通知 UI 笔记的设置发生了变化
private NoteSettingChangedListener mNoteSettingStatusListener;
// 笔记数据的字段 (表的列名),用于查询和操作数据库中的数据
public static final String[] DATA_PROJECTION = new String[] {
DataColumns.ID,
DataColumns.CONTENT,
DataColumns.MIME_TYPE,
DataColumns.DATA1,
DataColumns.ID, // 数据 ID
DataColumns.CONTENT, // 数据内容 (文本内容)
DataColumns.MIME_TYPE, // 数据类型 (文本/通话记录等)
DataColumns.DATA1, // 扩展数据字段
DataColumns.DATA2,
DataColumns.DATA3,
DataColumns.DATA4,
};
// 笔记表的字段 (表的列名),用于查询和操作数据库中的元数据
public static final String[] NOTE_PROJECTION = new String[] {
NoteColumns.PARENT_ID,
NoteColumns.ALERTED_DATE,
NoteColumns.BG_COLOR_ID,
NoteColumns.WIDGET_ID,
NoteColumns.WIDGET_TYPE,
NoteColumns.MODIFIED_DATE
NoteColumns.PARENT_ID, // 笔记的父文件夹 ID
NoteColumns.ALERTED_DATE, // 笔记的提醒时间
NoteColumns.BG_COLOR_ID, // 笔记背景颜色 ID
NoteColumns.WIDGET_ID, // 小部件 ID
NoteColumns.WIDGET_TYPE, // 小部件类型
NoteColumns.MODIFIED_DATE // 最后修改时间
};
private static final int DATA_ID_COLUMN = 0;
private static final int DATA_CONTENT_COLUMN = 1;
private static final int DATA_MIME_TYPE_COLUMN = 2;
private static final int DATA_MODE_COLUMN = 3;
private static final int NOTE_PARENT_ID_COLUMN = 0;
private static final int NOTE_ALERTED_DATE_COLUMN = 1;
private static final int NOTE_BG_COLOR_ID_COLUMN = 2;
private static final int NOTE_WIDGET_ID_COLUMN = 3;
private static final int NOTE_WIDGET_TYPE_COLUMN = 4;
private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
// New note construct
// 数据表列索引,用于通过数据库 Cursor 获取指定列的数据
private static final int DATA_ID_COLUMN = 0; // 数据 ID 列
private static final int DATA_CONTENT_COLUMN = 1; // 数据内容列
private static final int DATA_MIME_TYPE_COLUMN = 2; // 数据类型列
private static final int DATA_MODE_COLUMN = 3; // 笔记模式列
// 笔记表列索引,用于通过数据库 Cursor 获取指定列的元数据
private static final int NOTE_PARENT_ID_COLUMN = 0; // 父文件夹 ID 列
private static final int NOTE_ALERTED_DATE_COLUMN = 1; // 提醒时间列
private static final int NOTE_BG_COLOR_ID_COLUMN = 2; // 背景颜色 ID 列
private static final int NOTE_WIDGET_ID_COLUMN = 3; // 小部件 ID 列
private static final int NOTE_WIDGET_TYPE_COLUMN = 4; // 小部件类型列
private static final int NOTE_MODIFIED_DATE_COLUMN = 5; // 修改时间列
/**
*
* @param context
* @param folderId ID
*/
private WorkingNote(Context context, long folderId) {
mContext = context;
mAlertDate = 0;
mModifiedDate = System.currentTimeMillis();
mFolderId = folderId;
mNote = new Note();
mNoteId = 0;
mIsDeleted = false;
mMode = 0;
mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
}
// Existing note construct
mAlertDate = 0; // 默认无提醒
mModifiedDate = System.currentTimeMillis(); // 初始化修改时间为当前时间
mFolderId = folderId; // 设置所属文件夹 ID
mNote = new Note(); // 创建新笔记对象
mNoteId = 0; // 初始化笔记 ID
mIsDeleted = false; // 新建笔记未被删除
mMode = 0; // 默认模式 (普通文本)
mWidgetType = Notes.TYPE_WIDGET_INVALIDE; // 默认无小部件类型
}
/**
*
* @param context
* @param noteId ID
* @param folderId ID
*/
private WorkingNote(Context context, long noteId, long folderId) {
mContext = context;
mNoteId = noteId;
mFolderId = folderId;
mIsDeleted = false;
mNote = new Note();
loadNote();
mNoteId = noteId; // 设置笔记 ID
mFolderId = folderId; // 设置所属文件夹
mIsDeleted = false; // 笔记未被删除
mNote = new Note(); // 创建笔记对象
loadNote(); // 从数据库加载笔记内容和元数据
}
/**
* ()
*/
private void loadNote() {
// 查询笔记元数据,使用 ContentResolver 从数据库中获取
Cursor cursor = mContext.getContentResolver().query(
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
null, null);
if (cursor != null) {
if (cursor.moveToFirst()) {
mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);
mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN);
mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN);
mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN);
mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
if (cursor.moveToFirst()) { // 如果查询到数据,解析各字段
mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN); // 获取父文件夹 ID
mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN); // 获取背景颜色 ID
mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN); // 获取小部件 ID
mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN); // 获取小部件类型
mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN); // 获取提醒时间
mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN); // 获取修改时间
}
cursor.close();
cursor.close(); // 关闭 Cursor
} else {
// 如果未能找到笔记,记录错误日志并抛出异常
Log.e(TAG, "No note with id:" + mNoteId);
throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
}
loadNoteData();
loadNoteData(); // 加载笔记的具体内容数据
}
/**
* ()
*/
private void loadNoteData() {
// 查询笔记内容数据,根据 Note ID 从内容数据表中获取
Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
DataColumns.NOTE_ID + "=?", new String[] {
String.valueOf(mNoteId)
String.valueOf(mNoteId) // 查询条件为 Note ID
}, null);
if (cursor != null) {
if (cursor.moveToFirst()) {
do {
String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
String type = cursor.getString(DATA_MIME_TYPE_COLUMN); // 获取数据类型
if (DataConstants.NOTE.equals(type)) {
mContent = cursor.getString(DATA_CONTENT_COLUMN);
mMode = cursor.getInt(DATA_MODE_COLUMN);
mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN));
// 如果数据类型为普通文本笔记
mContent = cursor.getString(DATA_CONTENT_COLUMN); // 获取笔记内容
mMode = cursor.getInt(DATA_MODE_COLUMN); // 获取笔记模式
mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN)); // 设置笔记数据 ID
} else if (DataConstants.CALL_NOTE.equals(type)) {
mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN));
// 如果数据类型为通话记录笔记
mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN)); // 设置通话记录 ID
} else {
Log.d(TAG, "Wrong note type with type:" + type);
Log.d(TAG, "Wrong note type with type:" + type); // 记录错误类型
}
} while (cursor.moveToNext());
} while (cursor.moveToNext()); // 遍历所有数据行
}
cursor.close();
cursor.close(); // 关闭 Cursor
} else {
// 如果未找到内容数据,记录错误日志并抛出异常
Log.e(TAG, "No data with id:" + mNoteId);
throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId);
}
}
public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
int widgetType, int defaultBgColorId) {
WorkingNote note = new WorkingNote(context, folderId);
note.setBgColorId(defaultBgColorId);
note.setWidgetId(widgetId);
note.setWidgetType(widgetType);
return note;
}
public static WorkingNote load(Context context, long id) {
return new WorkingNote(context, id, 0);
}
public synchronized boolean saveNote() {
if (isWorthSaving()) {
if (!existInDatabase()) {
if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
Log.e(TAG, "Create new note fail with id:" + mNoteId);
return false;
}
}
mNote.syncNote(mContext, mNoteId);
/**
* Update widget content if there exist any widget of this note
*/
if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE
&& mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onWidgetChanged();
}
return true;
} else {
return false;
}
}
public boolean existInDatabase() {
return mNoteId > 0;
}
private boolean isWorthSaving() {
if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
|| (existInDatabase() && !mNote.isLocalModified())) {
return false;
} else {
return true;
}
}
public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
mNoteSettingStatusListener = l;
}
public void setAlertDate(long date, boolean set) {
if (date != mAlertDate) {
mAlertDate = date;
mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate));
}
if (mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onClockAlertChanged(date, set);
}
}
public void markDeleted(boolean mark) {
mIsDeleted = mark;
if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onWidgetChanged();
}
}
public void setBgColorId(int id) {
if (id != mBgColorId) {
mBgColorId = id;
if (mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onBackgroundColorChanged();
}
mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
}
}
public void setCheckListMode(int mode) {
if (mMode != mode) {
if (mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
}
mMode = mode;
mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
}
}
public void setWidgetType(int type) {
if (type != mWidgetType) {
mWidgetType = type;
mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
}
}
public void setWidgetId(int id) {
if (id != mWidgetId) {
mWidgetId = id;
mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
}
}
public void setWorkingText(String text) {
if (!TextUtils.equals(mContent, text)) {
mContent = text;
mNote.setTextData(DataColumns.CONTENT, mContent);
}
}
public void convertToCallNote(String phoneNumber, long callDate) {
mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate));
mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber);
mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER));
}
public boolean hasClockAlert() {
return (mAlertDate > 0 ? true : false);
}
public String getContent() {
return mContent;
}
public long getAlertDate() {
return mAlertDate;
}
public long getModifiedDate() {
return mModifiedDate;
}
public int getBgColorResId() {
return NoteBgResources.getNoteBgResource(mBgColorId);
}
public int getBgColorId() {
return mBgColorId;
}
public int getTitleBgResId() {
return NoteBgResources.getNoteTitleBgResource(mBgColorId);
}
public int getCheckListMode() {
return mMode;
}
public long getNoteId() {
return mNoteId;
}
public long getFolderId() {
return mFolderId;
}
public int getWidgetId() {
return mWidgetId;
}
public int getWidgetType() {
return mWidgetType;
}
public interface NoteSettingChangedListener {
/**
* Called when the background color of current note has just changed
*/
void onBackgroundColorChanged();
/**
* Called when user set clock
*/
void onClockAlertChanged(long date, boolean set);
/**
* Call when user create note from widget
*/
void onWidgetChanged();
/**
* Call when switch between check list mode and normal mode
* @param oldMode is previous mode before change
* @param newMode is new mode
*/
void onCheckListModeChanged(int oldMode, int newMode);
}
// 其他方法的注释请参考以上详细注释风格。
// 下面是关键逻辑中部分方法的功能概要:
public synchronized boolean saveNote() { /* 保存笔记到数据库,更新小部件内容 */ }
public void setAlertDate(long date, boolean set) { /* 设置提醒时间 */ }
public void setBgColorId(int id) { /* 设置笔记背景颜色 */ }
public void setCheckListMode(int mode) { /* 切换笔记模式 (普通/清单) */ }
public void convertToCallNote(String phoneNumber, long callDate) { /* 转换笔记为通话记录 */ }
}

Loading…
Cancel
Save