|
|
|
|
@ -1,344 +1,393 @@
|
|
|
|
|
[file name]: BackupUtils.java
|
|
|
|
|
[file content begin]
|
|
|
|
|
/*
|
|
|
|
|
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
|
|
|
|
|
* 版权声明:2010-2011年,MiCode开源社区
|
|
|
|
|
*
|
|
|
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
|
* 基于Apache License 2.0许可证授权
|
|
|
|
|
* you may not use this file except in compliance with the License.
|
|
|
|
|
* 除非遵守许可证,否则不得使用此文件
|
|
|
|
|
* You may obtain a copy of the License at
|
|
|
|
|
* 可以在以下地址获取许可证副本
|
|
|
|
|
*
|
|
|
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
|
*
|
|
|
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
|
|
|
* 除非适用法律要求或书面同意
|
|
|
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
|
* 按"原样"分发软件
|
|
|
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
|
* 没有任何明示或暗示的担保或条件
|
|
|
|
|
* See the License for the specific language governing permissions and
|
|
|
|
|
* 请参阅许可证了解具体语言权限
|
|
|
|
|
* limitations under the License.
|
|
|
|
|
* 和限制
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
// 包声明:工具类包
|
|
|
|
|
package net.micode.notes.tool;
|
|
|
|
|
|
|
|
|
|
import android.content.Context;
|
|
|
|
|
import android.database.Cursor;
|
|
|
|
|
import android.os.Environment;
|
|
|
|
|
import android.text.TextUtils;
|
|
|
|
|
import android.text.format.DateFormat;
|
|
|
|
|
import android.util.Log;
|
|
|
|
|
|
|
|
|
|
import net.micode.notes.R;
|
|
|
|
|
import net.micode.notes.data.Notes;
|
|
|
|
|
import net.micode.notes.data.Notes.DataColumns;
|
|
|
|
|
import net.micode.notes.data.Notes.DataConstants;
|
|
|
|
|
import net.micode.notes.data.Notes.NoteColumns;
|
|
|
|
|
|
|
|
|
|
import java.io.File;
|
|
|
|
|
import java.io.FileNotFoundException;
|
|
|
|
|
import java.io.FileOutputStream;
|
|
|
|
|
import java.io.IOException;
|
|
|
|
|
import java.io.PrintStream;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 导入Android相关类
|
|
|
|
|
import android.content.Context; // 上下文类,用于访问应用资源
|
|
|
|
|
import android.database.Cursor; // 数据库游标,用于查询结果
|
|
|
|
|
import android.os.Environment; // 环境类,用于访问外部存储
|
|
|
|
|
import android.text.TextUtils; // 文本工具类
|
|
|
|
|
import android.text.format.DateFormat; // 日期格式化类
|
|
|
|
|
import android.util.Log; // 日志工具类
|
|
|
|
|
|
|
|
|
|
// 导入应用内部资源
|
|
|
|
|
import net.micode.notes.R; // R资源文件
|
|
|
|
|
import net.micode.notes.data.Notes; // 笔记数据类
|
|
|
|
|
import net.micode.notes.data.Notes.DataColumns; // 数据列定义
|
|
|
|
|
import net.micode.notes.data.Notes.DataConstants; // 数据常量定义
|
|
|
|
|
import net.micode.notes.data.Notes.NoteColumns; // 笔记列定义
|
|
|
|
|
|
|
|
|
|
// 导入Java IO类
|
|
|
|
|
import java.io.File; // 文件类
|
|
|
|
|
import java.io.FileNotFoundException; // 文件未找到异常
|
|
|
|
|
import java.io.FileOutputStream; // 文件输出流
|
|
|
|
|
import java.io.IOException; // IO异常
|
|
|
|
|
import java.io.PrintStream; // 打印流
|
|
|
|
|
|
|
|
|
|
// 备份工具类:负责将笔记数据导出为文本文件
|
|
|
|
|
public class BackupUtils {
|
|
|
|
|
private static final String TAG = "BackupUtils";
|
|
|
|
|
// Singleton stuff
|
|
|
|
|
private static BackupUtils sInstance;
|
|
|
|
|
private static final String TAG = "BackupUtils"; // 日志标签
|
|
|
|
|
// 单例模式相关
|
|
|
|
|
private static BackupUtils sInstance; // 静态单例实例
|
|
|
|
|
|
|
|
|
|
// 获取单例实例的静态方法,使用synchronized确保线程安全
|
|
|
|
|
public static synchronized BackupUtils getInstance(Context context) {
|
|
|
|
|
if (sInstance == null) {
|
|
|
|
|
sInstance = new BackupUtils(context);
|
|
|
|
|
if (sInstance == null) { // 如果实例为空
|
|
|
|
|
sInstance = new BackupUtils(context); // 创建新实例
|
|
|
|
|
}
|
|
|
|
|
return sInstance;
|
|
|
|
|
return sInstance; // 返回实例
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Following states are signs to represents backup or restore
|
|
|
|
|
* status
|
|
|
|
|
* 以下是表示备份或恢复状态的常量
|
|
|
|
|
*/
|
|
|
|
|
// Currently, the sdcard is not mounted
|
|
|
|
|
public static final int STATE_SD_CARD_UNMOUONTED = 0;
|
|
|
|
|
// The backup file not exist
|
|
|
|
|
public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
|
|
|
|
|
// The data is not well formated, may be changed by other programs
|
|
|
|
|
public static final int STATE_DATA_DESTROIED = 2;
|
|
|
|
|
// Some run-time exception which causes restore or backup fails
|
|
|
|
|
public static final int STATE_SYSTEM_ERROR = 3;
|
|
|
|
|
// Backup or restore success
|
|
|
|
|
public static final int STATE_SUCCESS = 4;
|
|
|
|
|
|
|
|
|
|
private TextExport mTextExport;
|
|
|
|
|
// 状态常量定义
|
|
|
|
|
public static final int STATE_SD_CARD_UNMOUONTED = 0; // SD卡未挂载状态
|
|
|
|
|
public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; // 备份文件不存在状态
|
|
|
|
|
public static final int STATE_DATA_DESTROIED = 2; // 数据被破坏状态
|
|
|
|
|
public static final int STATE_SYSTEM_ERROR = 3; // 系统错误状态
|
|
|
|
|
public static final int STATE_SUCCESS = 4; // 成功状态
|
|
|
|
|
|
|
|
|
|
private TextExport mTextExport; // 文本导出器实例
|
|
|
|
|
|
|
|
|
|
// 私有构造函数,外部不能直接实例化
|
|
|
|
|
private BackupUtils(Context context) {
|
|
|
|
|
mTextExport = new TextExport(context);
|
|
|
|
|
mTextExport = new TextExport(context); // 创建文本导出器
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 检查外部存储是否可用的静态方法
|
|
|
|
|
private static boolean externalStorageAvailable() {
|
|
|
|
|
// 判断外部存储状态是否为已挂载
|
|
|
|
|
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 导出数据到文本文件的公共方法
|
|
|
|
|
public int exportToText() {
|
|
|
|
|
return mTextExport.exportToText();
|
|
|
|
|
return mTextExport.exportToText(); // 调用文本导出器的导出方法
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 获取导出的文本文件名
|
|
|
|
|
public String getExportedTextFileName() {
|
|
|
|
|
return mTextExport.mFileName;
|
|
|
|
|
return mTextExport.mFileName; // 返回文件名
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 获取导出的文本文件目录
|
|
|
|
|
public String getExportedTextFileDir() {
|
|
|
|
|
return mTextExport.mFileDirectory;
|
|
|
|
|
return mTextExport.mFileDirectory; // 返回文件目录
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 内部类:文本导出器,实现具体的导出逻辑
|
|
|
|
|
private static class TextExport {
|
|
|
|
|
// 笔记表查询字段数组,定义需要查询的列
|
|
|
|
|
private static final String[] NOTE_PROJECTION = {
|
|
|
|
|
NoteColumns.ID,
|
|
|
|
|
NoteColumns.MODIFIED_DATE,
|
|
|
|
|
NoteColumns.SNIPPET,
|
|
|
|
|
NoteColumns.TYPE
|
|
|
|
|
NoteColumns.ID, // 笔记ID列
|
|
|
|
|
NoteColumns.MODIFIED_DATE, // 修改日期列
|
|
|
|
|
NoteColumns.SNIPPET, // 内容摘要列
|
|
|
|
|
NoteColumns.TYPE // 类型列
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
private static final int NOTE_COLUMN_ID = 0;
|
|
|
|
|
|
|
|
|
|
private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
|
|
|
|
|
|
|
|
|
|
private static final int NOTE_COLUMN_SNIPPET = 2;
|
|
|
|
|
// 笔记列索引常量
|
|
|
|
|
private static final int NOTE_COLUMN_ID = 0; // ID列索引
|
|
|
|
|
private static final int NOTE_COLUMN_MODIFIED_DATE = 1; // 修改日期列索引
|
|
|
|
|
private static final int NOTE_COLUMN_SNIPPET = 2; // 内容摘要列索引
|
|
|
|
|
|
|
|
|
|
// 数据表查询字段数组
|
|
|
|
|
private static final String[] DATA_PROJECTION = {
|
|
|
|
|
DataColumns.CONTENT,
|
|
|
|
|
DataColumns.MIME_TYPE,
|
|
|
|
|
DataColumns.DATA1,
|
|
|
|
|
DataColumns.DATA2,
|
|
|
|
|
DataColumns.DATA3,
|
|
|
|
|
DataColumns.DATA4,
|
|
|
|
|
DataColumns.CONTENT, // 内容列
|
|
|
|
|
DataColumns.MIME_TYPE, // MIME类型列
|
|
|
|
|
DataColumns.DATA1, // 数据1列
|
|
|
|
|
DataColumns.DATA2, // 数据2列
|
|
|
|
|
DataColumns.DATA3, // 数据3列
|
|
|
|
|
DataColumns.DATA4, // 数据4列
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
private static final int DATA_COLUMN_CONTENT = 0;
|
|
|
|
|
|
|
|
|
|
private static final int DATA_COLUMN_MIME_TYPE = 1;
|
|
|
|
|
|
|
|
|
|
private static final int DATA_COLUMN_CALL_DATE = 2;
|
|
|
|
|
|
|
|
|
|
private static final int DATA_COLUMN_PHONE_NUMBER = 4;
|
|
|
|
|
// 数据列索引常量
|
|
|
|
|
private static final int DATA_COLUMN_CONTENT = 0; // 内容列索引
|
|
|
|
|
private static final int DATA_COLUMN_MIME_TYPE = 1; // MIME类型列索引
|
|
|
|
|
private static final int DATA_COLUMN_CALL_DATE = 2; // 通话日期列索引
|
|
|
|
|
private static final int DATA_COLUMN_PHONE_NUMBER = 4; // 电话号码列索引
|
|
|
|
|
|
|
|
|
|
// 文本格式化字符串数组,从资源文件中读取
|
|
|
|
|
private final String [] TEXT_FORMAT;
|
|
|
|
|
private static final int FORMAT_FOLDER_NAME = 0;
|
|
|
|
|
private static final int FORMAT_NOTE_DATE = 1;
|
|
|
|
|
private static final int FORMAT_NOTE_CONTENT = 2;
|
|
|
|
|
// 格式化索引常量
|
|
|
|
|
private static final int FORMAT_FOLDER_NAME = 0; // 文件夹名称格式索引
|
|
|
|
|
private static final int FORMAT_NOTE_DATE = 1; // 笔记日期格式索引
|
|
|
|
|
private static final int FORMAT_NOTE_CONTENT = 2; // 笔记内容格式索引
|
|
|
|
|
|
|
|
|
|
private Context mContext;
|
|
|
|
|
private String mFileName;
|
|
|
|
|
private String mFileDirectory;
|
|
|
|
|
private Context mContext; // 上下文对象
|
|
|
|
|
private String mFileName; // 文件名
|
|
|
|
|
private String mFileDirectory; // 文件目录
|
|
|
|
|
|
|
|
|
|
// 构造函数
|
|
|
|
|
public TextExport(Context context) {
|
|
|
|
|
// 从资源文件获取文本格式化数组
|
|
|
|
|
TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
|
|
|
|
|
mContext = context;
|
|
|
|
|
mFileName = "";
|
|
|
|
|
mFileDirectory = "";
|
|
|
|
|
mContext = context; // 保存上下文
|
|
|
|
|
mFileName = ""; // 初始化文件名为空
|
|
|
|
|
mFileDirectory = ""; // 初始化文件目录为空
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 获取指定索引的格式化字符串
|
|
|
|
|
private String getFormat(int id) {
|
|
|
|
|
return TEXT_FORMAT[id];
|
|
|
|
|
return TEXT_FORMAT[id]; // 返回格式化字符串
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Export the folder identified by folder id to text
|
|
|
|
|
* 导出指定文件夹的笔记到文本
|
|
|
|
|
* @param folderId 文件夹ID
|
|
|
|
|
* @param ps 打印流,用于输出文本
|
|
|
|
|
*/
|
|
|
|
|
private void exportFolderToText(String folderId, PrintStream ps) {
|
|
|
|
|
// Query notes belong to this folder
|
|
|
|
|
// 查询属于该文件夹的笔记
|
|
|
|
|
Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
|
|
|
|
|
NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
|
|
|
|
|
folderId
|
|
|
|
|
}, null);
|
|
|
|
|
NOTE_PROJECTION, // 查询的列
|
|
|
|
|
NoteColumns.PARENT_ID + "=?", // 查询条件:父ID等于指定文件夹ID
|
|
|
|
|
new String[] { folderId }, // 查询参数
|
|
|
|
|
null); // 排序方式(无)
|
|
|
|
|
|
|
|
|
|
if (notesCursor != null) {
|
|
|
|
|
if (notesCursor.moveToFirst()) {
|
|
|
|
|
if (notesCursor != null) { // 如果游标不为空
|
|
|
|
|
if (notesCursor.moveToFirst()) { // 如果游标移动到第一行
|
|
|
|
|
do {
|
|
|
|
|
// Print note's last modified date
|
|
|
|
|
// 打印笔记的最后修改日期
|
|
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
|
|
|
|
|
mContext.getString(R.string.format_datetime_mdhm),
|
|
|
|
|
notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
|
|
|
|
|
// Query data belong to this note
|
|
|
|
|
String noteId = notesCursor.getString(NOTE_COLUMN_ID);
|
|
|
|
|
exportNoteToText(noteId, ps);
|
|
|
|
|
} while (notesCursor.moveToNext());
|
|
|
|
|
mContext.getString(R.string.format_datetime_mdhm), // 日期时间格式
|
|
|
|
|
notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); // 修改日期
|
|
|
|
|
// 查询属于该笔记的数据
|
|
|
|
|
String noteId = notesCursor.getString(NOTE_COLUMN_ID); // 获取笔记ID
|
|
|
|
|
exportNoteToText(noteId, ps); // 导出该笔记的内容
|
|
|
|
|
} while (notesCursor.moveToNext()); // 移动到下一行
|
|
|
|
|
}
|
|
|
|
|
notesCursor.close();
|
|
|
|
|
notesCursor.close(); // 关闭游标
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Export note identified by id to a print stream
|
|
|
|
|
* 导出指定笔记到打印流
|
|
|
|
|
* @param noteId 笔记ID
|
|
|
|
|
* @param ps 打印流,用于输出文本
|
|
|
|
|
*/
|
|
|
|
|
private void exportNoteToText(String noteId, PrintStream ps) {
|
|
|
|
|
// 查询属于该笔记的数据
|
|
|
|
|
Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
|
|
|
|
|
DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
|
|
|
|
|
noteId
|
|
|
|
|
}, null);
|
|
|
|
|
DATA_PROJECTION, // 查询的列
|
|
|
|
|
DataColumns.NOTE_ID + "=?", // 查询条件:笔记ID等于指定笔记ID
|
|
|
|
|
new String[] { noteId }, // 查询参数
|
|
|
|
|
null); // 排序方式(无)
|
|
|
|
|
|
|
|
|
|
if (dataCursor != null) {
|
|
|
|
|
if (dataCursor.moveToFirst()) {
|
|
|
|
|
if (dataCursor != null) { // 如果游标不为空
|
|
|
|
|
if (dataCursor.moveToFirst()) { // 如果游标移动到第一行
|
|
|
|
|
do {
|
|
|
|
|
// 获取MIME类型
|
|
|
|
|
String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
|
|
|
|
|
if (DataConstants.CALL_NOTE.equals(mimeType)) {
|
|
|
|
|
// Print phone number
|
|
|
|
|
if (DataConstants.CALL_NOTE.equals(mimeType)) { // 如果是通话笔记类型
|
|
|
|
|
// 获取通话笔记的各个字段
|
|
|
|
|
String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
|
|
|
|
|
long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
|
|
|
|
|
String location = dataCursor.getString(DATA_COLUMN_CONTENT);
|
|
|
|
|
|
|
|
|
|
if (!TextUtils.isEmpty(phoneNumber)) {
|
|
|
|
|
if (!TextUtils.isEmpty(phoneNumber)) { // 如果电话号码不为空
|
|
|
|
|
// 打印电话号码
|
|
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
|
|
|
|
|
phoneNumber));
|
|
|
|
|
}
|
|
|
|
|
// Print call date
|
|
|
|
|
// 打印通话日期
|
|
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
|
|
|
|
|
.format(mContext.getString(R.string.format_datetime_mdhm),
|
|
|
|
|
callDate)));
|
|
|
|
|
// Print call attachment location
|
|
|
|
|
if (!TextUtils.isEmpty(location)) {
|
|
|
|
|
// 打印通话附件位置
|
|
|
|
|
if (!TextUtils.isEmpty(location)) { // 如果位置信息不为空
|
|
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
|
|
|
|
|
location));
|
|
|
|
|
}
|
|
|
|
|
} else if (DataConstants.NOTE.equals(mimeType)) {
|
|
|
|
|
String content = dataCursor.getString(DATA_COLUMN_CONTENT);
|
|
|
|
|
if (!TextUtils.isEmpty(content)) {
|
|
|
|
|
} else if (DataConstants.NOTE.equals(mimeType)) { // 如果是普通笔记类型
|
|
|
|
|
String content = dataCursor.getString(DATA_COLUMN_CONTENT); // 获取内容
|
|
|
|
|
if (!TextUtils.isEmpty(content)) { // 如果内容不为空
|
|
|
|
|
// 打印内容
|
|
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
|
|
|
|
|
content));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} while (dataCursor.moveToNext());
|
|
|
|
|
} while (dataCursor.moveToNext()); // 移动到下一行
|
|
|
|
|
}
|
|
|
|
|
dataCursor.close();
|
|
|
|
|
dataCursor.close(); // 关闭游标
|
|
|
|
|
}
|
|
|
|
|
// print a line separator between note
|
|
|
|
|
// 在笔记之间打印分隔符
|
|
|
|
|
try {
|
|
|
|
|
ps.write(new byte[] {
|
|
|
|
|
Character.LINE_SEPARATOR, Character.LETTER_NUMBER
|
|
|
|
|
ps.write(new byte[] { // 写入字节数组
|
|
|
|
|
Character.LINE_SEPARATOR, // 行分隔符
|
|
|
|
|
Character.LETTER_NUMBER // 字母数字字符
|
|
|
|
|
});
|
|
|
|
|
} catch (IOException e) {
|
|
|
|
|
Log.e(TAG, e.toString());
|
|
|
|
|
} catch (IOException e) { // 捕获IO异常
|
|
|
|
|
Log.e(TAG, e.toString()); // 记录错误日志
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Note will be exported as text which is user readable
|
|
|
|
|
* 将笔记导出为文本格式(用户可读)
|
|
|
|
|
* @return 导出状态码
|
|
|
|
|
*/
|
|
|
|
|
public int exportToText() {
|
|
|
|
|
if (!externalStorageAvailable()) {
|
|
|
|
|
Log.d(TAG, "Media was not mounted");
|
|
|
|
|
return STATE_SD_CARD_UNMOUONTED;
|
|
|
|
|
if (!externalStorageAvailable()) { // 检查外部存储是否可用
|
|
|
|
|
Log.d(TAG, "Media was not mounted"); // 记录调试日志
|
|
|
|
|
return STATE_SD_CARD_UNMOUONTED; // 返回SD卡未挂载状态
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
PrintStream ps = getExportToTextPrintStream();
|
|
|
|
|
if (ps == null) {
|
|
|
|
|
Log.e(TAG, "get print stream error");
|
|
|
|
|
return STATE_SYSTEM_ERROR;
|
|
|
|
|
PrintStream ps = getExportToTextPrintStream(); // 获取打印流
|
|
|
|
|
if (ps == null) { // 如果打印流为空
|
|
|
|
|
Log.e(TAG, "get print stream error"); // 记录错误日志
|
|
|
|
|
return STATE_SYSTEM_ERROR; // 返回系统错误状态
|
|
|
|
|
}
|
|
|
|
|
// First export folder and its notes
|
|
|
|
|
|
|
|
|
|
// 首先导出文件夹及其笔记
|
|
|
|
|
// 查询所有文件夹(排除垃圾箱)和通话记录文件夹
|
|
|
|
|
Cursor folderCursor = mContext.getContentResolver().query(
|
|
|
|
|
Notes.CONTENT_NOTE_URI,
|
|
|
|
|
NOTE_PROJECTION,
|
|
|
|
|
"(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND "
|
|
|
|
|
+ NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
|
|
|
|
|
+ NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null);
|
|
|
|
|
+ NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, // 查询条件
|
|
|
|
|
null, // 查询参数
|
|
|
|
|
null); // 排序方式
|
|
|
|
|
|
|
|
|
|
if (folderCursor != null) {
|
|
|
|
|
if (folderCursor.moveToFirst()) {
|
|
|
|
|
if (folderCursor != null) { // 如果游标不为空
|
|
|
|
|
if (folderCursor.moveToFirst()) { // 如果游标移动到第一行
|
|
|
|
|
do {
|
|
|
|
|
// Print folder's name
|
|
|
|
|
String folderName = "";
|
|
|
|
|
// 打印文件夹名称
|
|
|
|
|
String folderName = ""; // 初始化文件夹名称为空
|
|
|
|
|
if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
|
|
|
|
|
// 如果是通话记录文件夹
|
|
|
|
|
folderName = mContext.getString(R.string.call_record_folder_name);
|
|
|
|
|
} else {
|
|
|
|
|
// 普通文件夹
|
|
|
|
|
folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
|
|
|
|
|
}
|
|
|
|
|
if (!TextUtils.isEmpty(folderName)) {
|
|
|
|
|
if (!TextUtils.isEmpty(folderName)) { // 如果文件夹名称不为空
|
|
|
|
|
// 打印文件夹名称
|
|
|
|
|
ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
|
|
|
|
|
}
|
|
|
|
|
String folderId = folderCursor.getString(NOTE_COLUMN_ID);
|
|
|
|
|
exportFolderToText(folderId, ps);
|
|
|
|
|
} while (folderCursor.moveToNext());
|
|
|
|
|
String folderId = folderCursor.getString(NOTE_COLUMN_ID); // 获取文件夹ID
|
|
|
|
|
exportFolderToText(folderId, ps); // 导出该文件夹下的笔记
|
|
|
|
|
} while (folderCursor.moveToNext()); // 移动到下一行
|
|
|
|
|
}
|
|
|
|
|
folderCursor.close();
|
|
|
|
|
folderCursor.close(); // 关闭游标
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Export notes in root's folder
|
|
|
|
|
// 导出根目录下的笔记(父ID为0的笔记)
|
|
|
|
|
Cursor noteCursor = mContext.getContentResolver().query(
|
|
|
|
|
Notes.CONTENT_NOTE_URI,
|
|
|
|
|
NOTE_PROJECTION,
|
|
|
|
|
NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
|
|
|
|
|
+ "=0", null, null);
|
|
|
|
|
+ "=0", // 查询条件:类型为笔记且父ID为0
|
|
|
|
|
null, // 查询参数
|
|
|
|
|
null); // 排序方式
|
|
|
|
|
|
|
|
|
|
if (noteCursor != null) {
|
|
|
|
|
if (noteCursor.moveToFirst()) {
|
|
|
|
|
if (noteCursor != null) { // 如果游标不为空
|
|
|
|
|
if (noteCursor.moveToFirst()) { // 如果游标移动到第一行
|
|
|
|
|
do {
|
|
|
|
|
// 打印笔记的修改日期
|
|
|
|
|
ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
|
|
|
|
|
mContext.getString(R.string.format_datetime_mdhm),
|
|
|
|
|
noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
|
|
|
|
|
// Query data belong to this note
|
|
|
|
|
String noteId = noteCursor.getString(NOTE_COLUMN_ID);
|
|
|
|
|
exportNoteToText(noteId, ps);
|
|
|
|
|
} while (noteCursor.moveToNext());
|
|
|
|
|
mContext.getString(R.string.format_datetime_mdhm), // 日期格式
|
|
|
|
|
noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); // 修改日期
|
|
|
|
|
// 查询属于该笔记的数据
|
|
|
|
|
String noteId = noteCursor.getString(NOTE_COLUMN_ID); // 获取笔记ID
|
|
|
|
|
exportNoteToText(noteId, ps); // 导出该笔记的内容
|
|
|
|
|
} while (noteCursor.moveToNext()); // 移动到下一行
|
|
|
|
|
}
|
|
|
|
|
noteCursor.close();
|
|
|
|
|
noteCursor.close(); // 关闭游标
|
|
|
|
|
}
|
|
|
|
|
ps.close();
|
|
|
|
|
ps.close(); // 关闭打印流
|
|
|
|
|
|
|
|
|
|
return STATE_SUCCESS;
|
|
|
|
|
return STATE_SUCCESS; // 返回成功状态
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Get a print stream pointed to the file {@generateExportedTextFile}
|
|
|
|
|
* 获取指向导出文件的打印流
|
|
|
|
|
* @return 打印流对象,如果创建失败返回null
|
|
|
|
|
*/
|
|
|
|
|
private PrintStream getExportToTextPrintStream() {
|
|
|
|
|
// 生成文件
|
|
|
|
|
File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
|
|
|
|
|
R.string.file_name_txt_format);
|
|
|
|
|
if (file == null) {
|
|
|
|
|
Log.e(TAG, "create file to exported failed");
|
|
|
|
|
return null;
|
|
|
|
|
if (file == null) { // 如果文件为空
|
|
|
|
|
Log.e(TAG, "create file to exported failed"); // 记录错误日志
|
|
|
|
|
return null; // 返回null
|
|
|
|
|
}
|
|
|
|
|
mFileName = file.getName();
|
|
|
|
|
mFileDirectory = mContext.getString(R.string.file_path);
|
|
|
|
|
PrintStream ps = null;
|
|
|
|
|
mFileName = file.getName(); // 保存文件名
|
|
|
|
|
mFileDirectory = mContext.getString(R.string.file_path); // 保存文件目录
|
|
|
|
|
PrintStream ps = null; // 初始化打印流
|
|
|
|
|
try {
|
|
|
|
|
FileOutputStream fos = new FileOutputStream(file);
|
|
|
|
|
ps = new PrintStream(fos);
|
|
|
|
|
} catch (FileNotFoundException e) {
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
return null;
|
|
|
|
|
} catch (NullPointerException e) {
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
return null;
|
|
|
|
|
FileOutputStream fos = new FileOutputStream(file); // 创建文件输出流
|
|
|
|
|
ps = new PrintStream(fos); // 创建打印流
|
|
|
|
|
} catch (FileNotFoundException e) { // 捕获文件未找到异常
|
|
|
|
|
e.printStackTrace(); // 打印异常堆栈
|
|
|
|
|
return null; // 返回null
|
|
|
|
|
} catch (NullPointerException e) { // 捕获空指针异常
|
|
|
|
|
e.printStackTrace(); // 打印异常堆栈
|
|
|
|
|
return null; // 返回null
|
|
|
|
|
}
|
|
|
|
|
return ps;
|
|
|
|
|
return ps; // 返回打印流
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Generate the text file to store imported data
|
|
|
|
|
* 在SD卡上生成用于存储导出数据的文本文件
|
|
|
|
|
* @param context 上下文对象
|
|
|
|
|
* @param filePathResId 文件路径资源ID
|
|
|
|
|
* @param fileNameFormatResId 文件名格式资源ID
|
|
|
|
|
* @return 生成的File对象,如果创建失败返回null
|
|
|
|
|
*/
|
|
|
|
|
private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
|
|
|
|
|
StringBuilder sb = new StringBuilder();
|
|
|
|
|
sb.append(Environment.getExternalStorageDirectory());
|
|
|
|
|
sb.append(context.getString(filePathResId));
|
|
|
|
|
File filedir = new File(sb.toString());
|
|
|
|
|
sb.append(context.getString(
|
|
|
|
|
fileNameFormatResId,
|
|
|
|
|
DateFormat.format(context.getString(R.string.format_date_ymd),
|
|
|
|
|
System.currentTimeMillis())));
|
|
|
|
|
File file = new File(sb.toString());
|
|
|
|
|
StringBuilder sb = new StringBuilder(); // 创建字符串构建器
|
|
|
|
|
sb.append(Environment.getExternalStorageDirectory()); // 添加外部存储目录
|
|
|
|
|
sb.append(context.getString(filePathResId)); // 添加文件路径
|
|
|
|
|
File filedir = new File(sb.toString()); // 创建目录文件对象
|
|
|
|
|
sb.append(context.getString( // 添加文件名
|
|
|
|
|
fileNameFormatResId, // 文件名格式资源ID
|
|
|
|
|
DateFormat.format(context.getString(R.string.format_date_ymd), // 日期格式
|
|
|
|
|
System.currentTimeMillis()))); // 当前时间
|
|
|
|
|
File file = new File(sb.toString()); // 创建文件对象
|
|
|
|
|
|
|
|
|
|
try {
|
|
|
|
|
if (!filedir.exists()) {
|
|
|
|
|
filedir.mkdir();
|
|
|
|
|
if (!filedir.exists()) { // 如果目录不存在
|
|
|
|
|
filedir.mkdir(); // 创建目录
|
|
|
|
|
}
|
|
|
|
|
if (!file.exists()) {
|
|
|
|
|
file.createNewFile();
|
|
|
|
|
if (!file.exists()) { // 如果文件不存在
|
|
|
|
|
file.createNewFile(); // 创建新文件
|
|
|
|
|
}
|
|
|
|
|
return file;
|
|
|
|
|
} catch (SecurityException e) {
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
} catch (IOException e) {
|
|
|
|
|
e.printStackTrace();
|
|
|
|
|
return file; // 返回文件对象
|
|
|
|
|
} catch (SecurityException e) { // 捕获安全异常
|
|
|
|
|
e.printStackTrace(); // 打印异常堆栈
|
|
|
|
|
} catch (IOException e) { // 捕获IO异常
|
|
|
|
|
e.printStackTrace(); // 打印异常堆栈
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return null;
|
|
|
|
|
return null; // 如果失败返回null
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
[file content end]
|