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zgx
zgx 2 months ago
parent c8d36b8fbd
commit 738d89a51c
2 changed files with 163 additions and 90 deletions
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41
src/net/micode/notes/data/Contact.java
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@ -16,7 +16,7 @@
package net.micode.notes.data;//导入包
import android.content.Context;
import android.content.Context;//
import android.database.Cursor;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.Data;
@ -24,19 +24,32 @@ import android.telephony.PhoneNumberUtils;
import android.util.Log;
import java.util.HashMap;
/**
* 联系人工具类，用于根据电话号码查询联系人名称，并带有缓存机制
*/
public class Contact {
// 静态缓存，用于存储电话号码与对应联系人名称的映射关系，避免重复查询数据库
private static HashMap<String, String> sContactCache;
// 日志标签
private static final String TAG = "Contact";
// 查询条件模板：
// 1. 使用PHONE_NUMBERS_EQUAL比较电话号码（考虑格式差异）
// 2. 数据类型为电话条目
// 3. 限制raw_contact_id必须在phone_lookup表中匹配指定最小匹配长度的记录
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 = '+')";
/**
* 根据电话号码查询联系人名称
* @param context 上下文对象，用于访问内容解析器
* @param phoneNumber 要查询的电话号码
* @return 联系人名称，如果未找到或出错则返回null
*/
public static String getContact(Context context, String phoneNumber) {
// 初始化缓存
if(sContactCache == null) {
sContactCache = new HashMap<String, String>();
}
@ -44,26 +57,30 @@ public class Contact {
if(sContactCache.containsKey(phoneNumber)) {
return sContactCache.get(phoneNumber);
}
// 优先从缓存中获取
String selection = CALLER_ID_SELECTION.replace("+",
// 构造完整查询条件：替换最小匹配长度参数
PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
// 通过内容解析器查询联系人数据库
Cursor cursor = context.getContentResolver().query(
Data.CONTENT_URI,
new String [] { Phone.DISPLAY_NAME },
selection,
new String[] { phoneNumber },
null);
Data.CONTENT_URI,// 访问组合联系人数据
new String [] { Phone.DISPLAY_NAME },// 查询显示名字段
selection,// 动态生成的查询条件
new String[] { phoneNumber },// 查询参数（原始电话号码）
null);// 排序方式（无）
// 处理查询结果
if (cursor != null && cursor.moveToFirst()) {
try {
// 获取第一条记录的显示名称
String name = cursor.getString(0);
// 更新缓存
sContactCache.put(phoneNumber, name);
return name;
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, " Cursor get string error " + e.toString());
return null;
} finally {
cursor.close();
cursor.close();// 确保关闭Cursor释放资源
}
} else {
Log.d(TAG, "No contact matched with number:" + phoneNumber);

212
src/net/micode/notes/data/NotesDatabaseHelper.java
Unescape View File

@ -25,63 +25,69 @@ 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;
/**
* 笔记数据库帮助类，负责数据库的创建、升级以及表结构管理
* 采用单例模式确保全局唯一数据库实例
*/
public class NotesDatabaseHelper extends SQLiteOpenHelper {
private static final String DB_NAME = "note.db";
private static final int DB_VERSION = 4;
// 数据库元数据配置
private static final String DB_NAME = "note.db";// 数据库文件名
private static final int DB_VERSION = 4;// 当前数据库版本
// 表名常量接口
public interface TABLE {
public static final String NOTE = "note";
public static final String NOTE = "note";// 主表：存储笔记元信息（标题、创建时间、父目录等）
public static final String DATA = "data";
public static final String DATA = "data";// 数据表：存储笔记具体内容及扩展数据
}
private static final String TAG = "NotesDatabaseHelper";
private static NotesDatabaseHelper mInstance;
private static final String TAG = "NotesDatabaseHelper";// 日志标签
private static NotesDatabaseHelper mInstance; // 单例实例
// Note表建表语句
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.ID + " INTEGER PRIMARY KEY," +// 笔记唯一标识
NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +// 所属文件夹ID（树形结构）
NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +// 提醒时间（毫秒时间戳）
NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +// 背景颜色标识
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" +
NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +// 是否有附件（0/1布尔值）
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +// 最后修改时间
NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + // 子项数量（用于文件夹）
NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +// 内容摘要
NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + // 笔记类型（普通笔记、文件夹等）
NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +// 关联的小部件ID
NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +// 小部件类型
NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +// 同步标识
NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +// 本地修改标记
NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +// 原始父目录（用于同步）
NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +// Google Task关联ID
NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + // 数据版本号（乐观锁）
")";
// Data表建表语句
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 ''" +
DataColumns.ID + " INTEGER PRIMARY KEY," +// 数据项唯一标识
DataColumns.MIME_TYPE + " TEXT NOT NULL," +// MIME类型（文本、清单、媒体等）
DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + // 关联的笔记ID
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +// 同步创建时间
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +// 同步修改时间
DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +// 主要内容存储
DataColumns.DATA1 + " INTEGER," +// 扩展字段1（类型相关数据）
DataColumns.DATA2 + " INTEGER," +// 扩展字段2（如清单项状态）
DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +// 扩展字段3（如地理位置）
DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +// 扩展字段4（如附件路径）
DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +// 扩展字段5（保留字段）
")";
// 数据表索引：加速按笔记ID查询数据项
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：当更新笔记的父目录时，增加新文件夹的计数
// 场景示例：把笔记A从文件夹X移动到文件夹Y时，Y的计数+1
/**
* Increase folder's note count when move note to the folder
*/
@ -93,7 +99,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END";
// 触发器：当更新笔记的父目录时，减少原文件夹的计数
// 场景示例：同上移动操作时，X的计数-1（需>0时生效）
/**
* Decrease folder's note count when move note from folder
*/
@ -106,7 +113,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
" END";
// 触发器：插入新笔记时增加所在文件夹的计数
/**
* Increase folder's note count when insert new note to the folder
*/
@ -118,7 +125,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END";
// 触发器：删除笔记时减少原文件夹的计数（防止负数）
/**
* Decrease folder's note count when delete note from the folder
*/
@ -131,33 +138,42 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0;" +
" END";
/**
* 插入NOTE类型数据时自动更新笔记摘要
* 场景：当在data表插入类型为普通笔记的数据时，自动更新note表的snippet字段
*/
/**
* Update note's content when insert data with type {@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 + "'" +
" WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +// 仅处理普通笔记类型
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +// 使用新插入的内容更新摘要
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +// 通过NOTE_ID关联
" END";
/**
* 更新NOTE类型数据时同步更新笔记摘要
* 场景：修改已有笔记内容时（如编辑文本），自动更新对应笔记摘要
*/
/**
* Update note's content when data with {@link DataConstants#NOTE} type has changed
*/
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 + "'" +
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +// 仅处理原类型为笔记的记录
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +// 同步最新内容到摘要
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END";
/**
* 删除NOTE类型数据时清空笔记摘要
* 场景：当删除笔记的正文数据时，自动清空对应笔记的摘要
*/
/**
* Update note's content when data with {@link DataConstants#NOTE} type has deleted
*/
@ -167,10 +183,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=''" +
" SET " + NoteColumns.SNIPPET + "=''" +// 清空摘要内容
" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
" END";
/**
* 笔记级联删除触发器
* 场景：当删除note表的记录时，自动删除关联的data表数据
* 作用：防止产生孤儿数据（没有对应笔记的数据项）
*/
/**
* Delete datas belong to note which has been deleted
*/
@ -179,9 +199,13 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" +
" DELETE FROM " + TABLE.DATA +
" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +// 根据被删除笔记ID清理数据
" END";
/**
* 文件夹级联删除触发器
* 场景：当删除文件夹时，自动删除其下所有笔记
* 注意：会触发delete_data_on_delete触发器进行二次清理
*/
/**
* Delete notes belong to folder which has been deleted
*/
@ -190,22 +214,33 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" +
" DELETE FROM " + TABLE.NOTE +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +// 删除所有父目录为被删文件夹的笔记
" END";
/**
* 文件夹移动至回收站操作触发器
* 场景：当文件夹被移动到回收站时，自动将其子项也移动到回收站
* 设计目的：保持文件夹结构的完整性
*/
/**
* Move notes belong to folder which has been moved to trash folder
*/
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 +
" WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +// 检测是否移动到回收站
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +// 批量更新子项父目录为回收站
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + // 选择原父目录下的所有笔记
" END";
/**
* 初始化系统文件夹（首次创建数据库时调用）
* 插入预定义的系统文件夹：
* 1. 通话记录文件夹（ID_CALL_RECORD_FOLDER）
* 2. 根文件夹（ID_ROOT_FOLDER）
* 3. 临时文件夹（ID_TEMPARAY_FOLDER）
* 4. 回收站（ID_TRASH_FOLER）
*/
public NotesDatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}
@ -237,14 +272,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
private void createSystemFolder(SQLiteDatabase db) {
ContentValues values = new ContentValues();
// 插入通话记录文件夹
/**
* call record foler for call notes
*/
values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);// 标记为系统文件夹
db.insert(TABLE.NOTE, null, values);
// 插入根文件夹（默认笔记存储位置）
/**
* root folder which is default folder
*/
@ -252,7 +287,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
// 插入临时文件夹（用于笔记移动操作时的暂存区）
/**
* temporary folder which is used for moving note
*/
@ -260,7 +295,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
// 插入回收站（软删除数据存储位置）
/**
* create trash folder
*/
@ -293,7 +328,13 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
}
return mInstance;
}
/**
* 数据库版本升级控制中心
* 升级策略：
* V1 → V2：完全重建表结构（破坏性升级）
* V2 → V3：添加Google Task支持 + 创建回收站
* V3 → V4：添加版本控制字段
*/
@Override
public void onCreate(SQLiteDatabase db) {
createNoteTable(db);
@ -304,57 +345,72 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
boolean reCreateTriggers = false;
boolean skipV2 = false;
// V1到V2升级策略：完全重建表结构
if (oldVersion == 1) {
upgradeToV2(db);
skipV2 = true; // this upgrade including the upgrade from v2 to v3
skipV2 = true; // this upgrade including the upgrade from v2 to v3// 包含V2到V3的升级逻辑
oldVersion++;
}
// V2到V3升级策略：非破坏性升级
if (oldVersion == 2 && !skipV2) {
upgradeToV3(db);
reCreateTriggers = true;
reCreateTriggers = true;// 需要重建触发器
oldVersion++;
}
// V3到V4升级策略：添加版本字段
if (oldVersion == 3) {
upgradeToV4(db);
oldVersion++;
}
// 重建触发器（当表结构变化可能影响触发器时）
if (reCreateTriggers) {
reCreateNoteTableTriggers(db);
reCreateDataTableTriggers(db);
}
// 版本检查容错
if (oldVersion != newVersion) {
throw new IllegalStateException("Upgrade notes database to version " + newVersion
+ "fails");
}
}
/**
* 升级到V2版本（破坏性升级）
* 操作说明：
* 1. 删除旧表
* 2. 重建表结构
* 3. 初始化系统文件夹
*/
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V3版本（功能增强）
* 主要变更：
* 1. 移除过期的修改时间触发器
* 2. 新增GTASK_ID字段（用于Google Tasks同步）
* 3. 初始化回收站文件夹
*/
private void upgradeToV3(SQLiteDatabase db) {
// drop unused triggers
// drop unused triggers// 移除旧版的时间更新触发器
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");
// add a column for gtask id
// add a column for gtask id// 添加Google Task关联字段
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID
+ " TEXT NOT NULL DEFAULT ''");
// add a trash system folder
// add a trash system folder// 插入回收站系统文件夹
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V4版本（数据版本控制）
* 新增字段：VERSION（用于实现乐观锁机制）
*/
private void upgradeToV4(SQLiteDatabase db) {
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
+ " INTEGER NOT NULL DEFAULT 0");

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