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beitingnanxu 2 years ago
parent fe423345eb
commit 5e7bf0e288

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<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$" />
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/gitProject.iml" filepath="$PROJECT_DIR$/.idea/gitProject.iml" />
</modules>
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="" vcs="Git" />
</component>
</project>

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/*
* 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.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;
public class BackupUtils {
private static final String TAG = "BackupUtils";
// Singleton stuff
private static BackupUtils sInstance;
public static synchronized BackupUtils getInstance(Context context) {
if (sInstance == null) {
sInstance = new BackupUtils(context);
}
return sInstance;
}
/* `TAG` String tag
`sInstance`
`getInstance()` `Context` `BackupUtils`
使线
*/
/**
* Following states are signs to represents backup or restore
* status
*/
// Currently, the sdcard is not mounted
public static final int STATE_SD_CARD_UNMOUONTED = 0;
// The backup file not exist(备份文件不存在)
public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
// The data is not well formated, may be changed by other programs数据格式不正确可能被其他程序更改
public static final int STATE_DATA_DESTROIED = 2;
// Some run-time exception which causes restore or backup fails导致备份或还原失败的默写运行异常
public static final int STATE_SYSTEM_ERROR = 3;
// Backup or restore success备份或还原成功
public static final int STATE_SUCCESS = 4;
private TextExport mTextExport;//实例化对象
private BackupUtils(Context context) {
mTextExport = new TextExport(context);
}
private static boolean externalStorageAvailable() {
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
}
public int exportToText() {
return mTextExport.exportToText();
}//这是一个 public 方法,用于将数据导出为文本,并返回一个整数值。
public String getExportedTextFileName() {
return mTextExport.mFileName;
}//这是一个 public 方法,用于获取导出的文本文件名。
public String getExportedTextFileDir() {
return mTextExport.mFileDirectory;
}//这是一个 public 方法,用于获取导出的文本文件所在的目录。
private static class TextExport {
private static final String[] NOTE_PROJECTION = {
NoteColumns.ID,
NoteColumns.MODIFIED_DATE,
NoteColumns.SNIPPET,
NoteColumns.TYPE
};//这是一个私有的静态内部类,用于完成数据导出的操作。
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;
private static final String[] DATA_PROJECTION = {
DataColumns.CONTENT,
DataColumns.MIME_TYPE,
DataColumns.DATA1,
DataColumns.DATA2,
DataColumns.DATA3,
DataColumns.DATA4,
};
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;
// 定义了多个常量,用于操作笔记和数据的列索引
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;
// 定义了一个字符串数组 TEXT_FORMAT其中存储了导出笔记时的文件格式
private Context mContext;
private String mFileName;
private String mFileDirectory;
// 定义了 Context mContext、String mFileName、String mFileDirectory 三个变量
// mContext 存储了当前上下文mFileName 存储了文件名mFileDirectory 存储了文件夹路径
public TextExport(Context context) {
TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
mContext = context;
mFileName = "";
mFileDirectory = "";// 构造函数,初始化了 TEXT_FORMAT、mContext、mFileName 和 mFileDirectory
}
private String getFormat(int id) {
return TEXT_FORMAT[id];
}// getFormat 方法返回 TEXT_FORMAT 数组中指定 id 的字符串
/**
* Export the folder identified by folder id to text
* (exportFolderToText )
*/
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);
if (notesCursor != null) {
if (notesCursor.moveToFirst()) {
do {
// Print note's last modified date // 输出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 // 查询属于该笔记的数据
String noteId = notesCursor.getString(NOTE_COLUMN_ID);
exportNoteToText(noteId, ps);
} while (notesCursor.moveToNext());
}
notesCursor.close();
}
}
/**
* Export note identified by id to a print stream
*/
private void exportNoteToText(String noteId, PrintStream ps) {
Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
noteId
}, null);// exportNoteToText 方法用于将指定笔记的数据导出到文本中
if (dataCursor != null) {
if (dataCursor.moveToFirst()) {
do {
String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
if (DataConstants.CALL_NOTE.equals(mimeType)) {
// Print phone number // 输出电话号码
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)) {
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
phoneNumber));
}
// Print call date// 输出通话日期
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
.format(mContext.getString(R.string.format_datetime_mdhm),
callDate)));
// Print call attachment location // 输出通话附件位置
if (!TextUtils.isEmpty(location)) {
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)) {
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
content));
}
}
} while (dataCursor.moveToNext());
}
dataCursor.close();
}
// print a line separator between note// 在导出每个笔记后输出一个分隔符
try {
ps.write(new byte[] {
Character.LINE_SEPARATOR, Character.LETTER_NUMBER
});
} catch (IOException e) {
Log.e(TAG, e.toString());
}
}
/**
* Note will be exported as text which is user readable
*/
public int exportToText() {
if (!externalStorageAvailable()) {
Log.d(TAG, "Media was not mounted");
return STATE_SD_CARD_UNMOUONTED;
}/*PrintStream使JavabyteCharacter.LINE_SEPARATORCharacter.LETTER_NUMBER
Character.LINE_SEPARATORWindows"\r\n"Unix/Linux"\n"
Character.LETTER_NUMBER
bytePrintStream便IOExceptionLogcat*/
PrintStream ps = getExportToTextPrintStream();
if (ps == null) {
Log.e(TAG, "get print stream error");
return STATE_SYSTEM_ERROR;
}//这段代码中的 getExportToTextPrintStream() 是一个自定义方法,它返回一个 PrintStream 对象,该对象用于将笔记数据导出到文本文件中
// First export folder and its notes//“首先导出文件夹及其包含的笔记”
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);
if (folderCursor != null) {
if (folderCursor.moveToFirst()) {
do {
// Print folder's name
String folderName = "";
if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
folderName = mContext.getString(R.string.call_record_folder_name);
} else {
folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
}
if (!TextUtils.isEmpty(folderName)) {
ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
}
String folderId = folderCursor.getString(NOTE_COLUMN_ID);
exportFolderToText(folderId, ps);
} while (folderCursor.moveToNext());
}
folderCursor.close();
}/*
ContentResolver query() Call Record Cursor folderCursor
folderCursor ID ps Call Record 使*/
// Export notes in root's folder
Cursor noteCursor = mContext.getContentResolver().query(
Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION,
NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
+ "=0", null, null);
if (noteCursor != null) {
if (noteCursor.moveToFirst()) {
do {
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());
}
noteCursor.close();
}
ps.close();
return STATE_SUCCESS;
}/*
ContentResolver query() Cursor noteCursor
noteCursor ps exportNoteToText() ps
ps STATE_SUCCESS noteCursor */
/**
* Get a print stream pointed to the file {@generateExportedTextFile}
*/
private PrintStream getExportToTextPrintStream() {
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;
}
mFileName = file.getName();
mFileDirectory = mContext.getString(R.string.file_path);
PrintStream ps = null;
try {
FileOutputStream fos = new FileOutputStream(file);
ps = new PrintStream(fos);
} catch (FileNotFoundException e) {
e.printStackTrace();
return null;
} catch (NullPointerException e) {
e.printStackTrace();
return null;
}
return ps;
}
}/* PrintStream
generateFileMountedOnSDcard() File file
file nullLogcat "create file to exported failed" null
file FileOutputStream fos PrintStream PrintStream ps
ps PrintStream FileNotFoundException NullPointerException null*/
/**
* Generate the text file to store imported data
*/
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());
try {
if (!filedir.exists()) {
filedir.mkdir();
}
if (!file.exists()) {
file.createNewFile();
}
return file;
} catch (SecurityException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}/*
filePathResId StringBuilder sb
File filedir mkdir()
使 fileNameFormatResId sb File file
file filedir file SecurityException IOException null*/

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/*
* 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.tool;
import android.content.ContentProviderOperation;
import android.content.ContentProviderResult;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.OperationApplicationException;
import android.database.Cursor;
import android.os.RemoteException;
import android.util.Log;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.CallNote;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
import java.util.ArrayList;
import java.util.HashSet;
public class DataUtils {
public static final String TAG = "DataUtils";//定义了一个Java常量变量名为TAG
public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
if (ids == null) {
Log.d(TAG, "the ids is null");
return true;
}
if (ids.size() == 0) {
Log.d(TAG, "no id is in the hashset");
return true;
}
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
for (long id : ids) {
if(id == Notes.ID_ROOT_FOLDER) {
Log.e(TAG, "Don't delete system folder root");
continue;
}
ContentProviderOperation.Builder builder = ContentProviderOperation
.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
operationList.add(builder.build());
}
try {
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
if (results == null || results.length == 0 || results[0] == null) {
Log.d(TAG, "delete notes failed, ids:" + ids.toString());
return false;
}
return true;
} catch (RemoteException e) {
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} catch (OperationApplicationException e) {
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
}
return false;
}/*ContentResolverLongHashSet
idstrueids0true
ids0idsNotes.ID_ROOT_FOLDERContentProviderOperation使ContentProviderOperation.newDelete()operationList
使ContentResolver.applyBatch()truefalseRemoteExceptionOperationApplicationExceptionfalse*/
public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
ContentValues values = new ContentValues();
values.put(NoteColumns.PARENT_ID, desFolderId);
values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
values.put(NoteColumns.LOCAL_MODIFIED, 1);
resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
}/*ContentResolverlongidlongsrcFolderIdlongdesFolderId
ContentValuesNoteColumns.PARENT_IDdesFolderIdNoteColumns.ORIGIN_PARENT_IDsrcFolderIdNoteColumns.LOCAL_MODIFIED1
ContentResolver.update()URIURIContentUris.withAppendedId()Notes.CONTENT_NOTE_URIidContentValuesnull*/
public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
long folderId) {
if (ids == null) {
Log.d(TAG, "the ids is null");
return true;
}
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
for (long id : ids) {
ContentProviderOperation.Builder builder = ContentProviderOperation
.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
builder.withValue(NoteColumns.PARENT_ID, folderId);
builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
operationList.add(builder.build());
}
try {
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
if (results == null || results.length == 0 || results[0] == null) {
Log.d(TAG, "delete notes failed, ids:" + ids.toString());
return false;
}
return true;
} catch (RemoteException e) {
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
} catch (OperationApplicationException e) {
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
}
return false;
}/*ContentResolverLongHashSetidsLongfolderId
idstrue
idsidsContentProviderOperation使ContentProviderOperation.newUpdate()NoteColumns.PARENT_IDfolderIdNoteColumns.LOCAL_MODIFIED1operationList
使ContentResolver.applyBatch()truefalseRemoteExceptionOperationApplicationExceptionfalse*/
/**
* Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
*/
public static int getUserFolderCount(ContentResolver resolver) {
Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { "COUNT(*)" },
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
null);
int count = 0;
if(cursor != null) {
if(cursor.moveToFirst()) {
try {
count = cursor.getInt(0);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "get folder count failed:" + e.toString());
} finally {
cursor.close();
}
}
}
return count;
}/*ContentResolver
Cursor使ContentResolver.query()Notes.TYPE_FOLDERCOUNT(*)
CursorCursornull使getInt(0)IndexOutOfBoundsExceptionCursor
*/
public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null,
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
new String [] {String.valueOf(type)},
null);
boolean exist = false;
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
cursor.close();
}
return exist;
}/*ContentResolverlongnoteIdinttype
Cursor使ContentResolver.query()type
existtrueCursorexist*/
public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null, null, null, null);
boolean exist = false;
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
cursor.close();
}
return exist;
}/*ContentResolverlongnoteId
Cursor使ContentResolver.query()IDnoteId
existtrueCursorexist*/
public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
null, null, null, null);
boolean exist = false;
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
cursor.close();
}
return exist;
}/*ContentResolverlongdataId
Cursor使ContentResolver.query()IDdataId
existtrueCursorexist*/
public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
" AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
" AND " + NoteColumns.SNIPPET + "=?",
new String[] { name }, null);
boolean exist = false;
if(cursor != null) {
if(cursor.getCount() > 0) {
exist = true;
}
cursor.close();
}
return exist;
}/*ContentResolverStringname
Cursor使ContentResolver.query()Notes.TYPE_FOLDERNoteColumns.PARENT_ID <> Notes.ID_TRASH_FOLERNoteColumns.SNIPPET
existtrueCursorexist*/
public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
NoteColumns.PARENT_ID + "=?",
new String[] { String.valueOf(folderId) },
null);
HashSet<AppWidgetAttribute> set = null;
if (c != null) {
if (c.moveToFirst()) {
set = new HashSet<AppWidgetAttribute>();
do {
try {
AppWidgetAttribute widget = new AppWidgetAttribute();
widget.widgetId = c.getInt(0);
widget.widgetType = c.getInt(1);
set.add(widget);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, e.toString());
}
} while (c.moveToNext());
}
c.close();
}
return set;
}/*ContentResolverlongfolderIdID
Cursor使ContentResolver.query()IDfolderIdID
HashSetHashSet<AppWidgetAttribute>IDHashSetnull
CursorHashSetID*/
public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
new String [] { CallNote.PHONE_NUMBER },
CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
null);
if (cursor != null && cursor.moveToFirst()) {
try {
return cursor.getString(0);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "Get call number fails " + e.toString());
} finally {
cursor.close();
}
}
return "";
}/*ContentResolverlongnoteIdID
Cursor使ContentResolver.query()IDnoteIdMIMECallNote.CONTENT_ITEM_TYPE
Cursor*/
public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
new String [] { CallNote.NOTE_ID },
CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
+ CallNote.PHONE_NUMBER + ",?)",
new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
null);
if (cursor != null) {
if (cursor.moveToFirst()) {
try {
return cursor.getLong(0);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "Get call note id fails " + e.toString());
}
}
cursor.close();
}
return 0;
}/*ContentResolverStringphoneNumberlongcallDateID
Cursor使ContentResolver.query()callDateMIMECallNote.CONTENT_ITEM_TYPEphoneNumberID
ID0
CursorID0*/
public static String getSnippetById(ContentResolver resolver, long noteId) {
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
new String [] { NoteColumns.SNIPPET },
NoteColumns.ID + "=?",
new String [] { String.valueOf(noteId)},
null);
if (cursor != null) {
String snippet = "";
if (cursor.moveToFirst()) {
snippet = cursor.getString(0);
}
cursor.close();
return snippet;
}
throw new IllegalArgumentException("Note is not found with id: " + noteId);
}/*ContentResolverlongnoteIdIDsnippet
Cursor使ContentResolver.query()IDnoteId
snippetCursorsnippetIllegalArgumentExceptionNote is not found with id: noteId*/
public static String getFormattedSnippet(String snippet) {
if (snippet != null) {
snippet = snippet.trim();
int index = snippet.indexOf('\n');
if (index != -1) {
snippet = snippet.substring(0, index);
}
}
return snippet;
}
}/*Stringsnippetsnippet便
snippet使String.trim()snippet使String.indexOf()snippet使String.substring()snippetsnippetsnippet
snippet*/

@ -0,0 +1,112 @@
/*
* 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.tool;
public class GTaskStringUtils {
public final static String GTASK_JSON_ACTION_ID = "action_id";// 行动 ID
public final static String GTASK_JSON_ACTION_LIST = "action_list";// 行动清单
public final static String GTASK_JSON_ACTION_TYPE = "action_type";// 行动类型
public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create";// 创建行动
public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all";// 获取全部行动
public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move";// 移动行动
public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update"; // 更新行动
public final static String GTASK_JSON_CREATOR_ID = "creator_id";// 创建者 ID
public final static String GTASK_JSON_CHILD_ENTITY = "child_entity";// 子实体
public final static String GTASK_JSON_CLIENT_VERSION = "client_version";// 客户端版本
public final static String GTASK_JSON_COMPLETED = "completed"; // 完成状态
public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id";// 当前清单 ID
public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id"; // 默认清单 ID
public final static String GTASK_JSON_DELETED = "deleted";// 删除状态
public final static String GTASK_JSON_DEST_LIST = "dest_list";// 目标清单
public final static String GTASK_JSON_DEST_PARENT = "dest_parent";// 目标父元素
public final static String GTASK_JSON_DEST_PARENT_TYPE = "dest_parent_type"; // 目标父元素类型
public final static String GTASK_JSON_ENTITY_DELTA = "entity_delta";// 实体增量
public final static String GTASK_JSON_ENTITY_TYPE = "entity_type"; // 实体类型
public final static String GTASK_JSON_GET_DELETED = "get_deleted"; // 获取删除状态
public final static String GTASK_JSON_ID = "id";// ID
public final static String GTASK_JSON_INDEX = "index";// 索引
public final static String GTASK_JSON_LAST_MODIFIED = "last_modified"; // 最后修改时间
public final static String GTASK_JSON_LATEST_SYNC_POINT = "latest_sync_point";// 最新同步点
public final static String GTASK_JSON_LIST_ID = "list_id"; // 清单 ID
public final static String GTASK_JSON_LISTS = "lists";// 清单列表
public final static String GTASK_JSON_NAME = "name";// 名称
public final static String GTASK_JSON_NEW_ID = "new_id";// 新 ID
public final static String GTASK_JSON_NOTES = "notes";// 备注
public final static String GTASK_JSON_PARENT_ID = "parent_id";// 父 ID
public final static String GTASK_JSON_PRIOR_SIBLING_ID = "prior_sibling_id";// 上一个同级 ID
public final static String GTASK_JSON_RESULTS = "results";// 结果
public final static String GTASK_JSON_SOURCE_LIST = "source_list";// 源清单
public final static String GTASK_JSON_TASKS = "tasks";// 任务列表
public final static String GTASK_JSON_TYPE = "type";// 类型
public final static String GTASK_JSON_TYPE_GROUP = "GROUP";// 分组类型
public final static String GTASK_JSON_TYPE_TASK = "TASK";// 任务类型
public final static String GTASK_JSON_USER = "user";// 用户
public final static String MIUI_FOLDER_PREFFIX = "[MIUI_Notes]"; // MIUI 笔记前缀
public final static String FOLDER_DEFAULT = "Default";// 默认文件夹
public final static String FOLDER_CALL_NOTE = "Call_Note"; // 通话笔记文件夹
public final static String FOLDER_META = "METADATA";// 元数据文件夹
public final static String META_HEAD_GTASK_ID = "meta_gid";// GTASK ID 元数据头
public final static String META_HEAD_NOTE = "meta_note";// 笔记元数据头
public final static String META_HEAD_DATA = "meta_data";// 数据元数据头
public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE";// 元数据笔记名称
}

@ -0,0 +1,153 @@
/*
* 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.widget;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.util.Log;
import android.widget.RemoteViews;
import net.micode.notes.R;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.tool.ResourceParser;
import net.micode.notes.ui.NoteEditActivity;
import net.micode.notes.ui.NotesListActivity;
public abstract class NoteWidgetProvider extends AppWidgetProvider {
public static final String [] PROJECTION = new String [] {
NoteColumns.ID,
NoteColumns.BG_COLOR_ID,
NoteColumns.SNIPPET
};/* NoteWidgetProvider AppWidgetProvider
PROJECTION ID ID */
public static final int COLUMN_ID = 0;// 笔记 ID 列在 PROJECTION 数组中的索引
public static final int COLUMN_BG_COLOR_ID = 1;// 笔记背景颜色 ID 列在 PROJECTION 数组中的索引
public static final int COLUMN_SNIPPET = 2;// 笔记摘录内容列在 PROJECTION 数组中的索引
private static final String TAG = "NoteWidgetProvider";// 日志输出标识符
@Override
public void onDeleted(Context context, int[] appWidgetIds) {
ContentValues values = new ContentValues();
values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
for (int i = 0; i < appWidgetIds.length; i++) {
context.getContentResolver().update(Notes.CONTENT_NOTE_URI,
values,
NoteColumns.WIDGET_ID + "=?",
new String[] { String.valueOf(appWidgetIds[i])});
}
}/* NoteWidgetProvider onDeleted() AppWidgetProvider
ContentValues values NoteColumns.WIDGET_ID AppWidgetManager.INVALID_APPWIDGET_ID
appWidgetIds NoteColumns.WIDGET_ID AppWidgetManager.INVALID_APPWIDGET_ID便
使 getContentResolver() ContentResolver update() NoteColumns.WIDGET_ID + "=?" NoteColumns.WIDGET_ID ID values NoteColumns.WIDGET_ID AppWidgetManager.INVALID_APPWIDGET_ID*/
private Cursor getNoteWidgetInfo(Context context, int widgetId) {// 使用 getContentResolver() 方法获取 ContentResolver 对象,通过该对象进行对笔记数据库的查询操作
return context.getContentResolver().query(Notes.CONTENT_NOTE_URI, // 使用 query() 方法查询笔记数据库,返回一个 Cursor 对象
return context.getContentResolver().query(// 查询的 URI笔记数据库中笔记的内容保存在该 URI 下
PROJECTION,
Notes.CONTENT_NOTE_URI,
PROJECTION,
NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",// 查询的列,即笔记 ID、笔记背景颜色 ID 和笔记摘录内容
new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) },//查询的条件,即笔记关联的小部件 ID 以及笔记的父 ID 不为回收站的笔记
null);// 排序方式,这里为 null 表示不排序
}
protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
update(context, appWidgetManager, appWidgetIds, false);
}/*这是 NoteWidgetProvider 抽象类中的一个受保护的方法 update(),它接受一个 Context 对象、一个 AppWidgetManager 对象和一个整型数组 appWidgetIds 作为参数,并在方法中调用了另一个同名方法。*/
private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
boolean privacyMode) {
for (int i = 0; i < appWidgetIds.length; i++) {
if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
int bgId = ResourceParser.getDefaultBgId(context);
String snippet = "";
Intent intent = new Intent(context, NoteEditActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
if (c != null && c.moveToFirst()) {
if (c.getCount() > 1) {
Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
c.close();
return;
}
snippet = c.getString(COLUMN_SNIPPET);
bgId = c.getInt(COLUMN_BG_COLOR_ID);
intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
intent.setAction(Intent.ACTION_VIEW);
} else {
snippet = context.getResources().getString(R.string.widget_havenot_content);
intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
}
if (c != null) {
c.close();
}
RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
/**
* Generate the pending intent to start host for the widget
*/
PendingIntent pendingIntent = null;
if (privacyMode) {
rv.setTextViewText(R.id.widget_text,
context.getString(R.string.widget_under_visit_mode));
pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent(
context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
} else {
rv.setTextViewText(R.id.widget_text, snippet);
pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
PendingIntent.FLAG_UPDATE_CURRENT);
}
rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
}
}
}/* `NoteWidgetProvider` `update()` `Context` `AppWidgetManager` `appWidgetIds` `privacyMode`
`appWidgetIds` ID `AppWidgetManager.INVALID_APPWIDGET_ID`
- ID
- `NoteEditActivity` ID
- `getNoteWidgetInfo()` ID
- ID `RemoteViews` ID `PendingIntent`
- `AppWidgetManager` `updateAppWidget()`
`privacyMode` `true` "隐私模式" `NotesListActivity` `NoteEditActivity`*/
protected abstract int getBgResourceId(int bgId);//用于获取小部件的背景资源 ID。
protected abstract int getLayoutId();//用于获取小部件的布局资源 ID。
protected abstract int getWidgetType();//用于获取小部件的类型。
}

@ -0,0 +1,47 @@
/*
* 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.widget;
import android.appwidget.AppWidgetManager;
import android.content.Context;
import net.micode.notes.R;
import net.micode.notes.data.Notes;
import net.micode.notes.tool.ResourceParser;
public class NoteWidgetProvider_2x extends NoteWidgetProvider {//创建一个继承自 NoteWidgetProvider 的子类 NoteWidgetProvider_2x
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
super.update(context, appWidgetManager, appWidgetIds);
}/*重写父类的 onUpdate() 方法,并在其中调用父类的 update() 方法,以更新小部件的显示内容和点击事件。*/
@Override
protected int getLayoutId() {
return R.layout.widget_2x;
}/*重写父类的 getLayoutId() 方法,返回用于小部件的布局资源 ID。这里返回 R.layout.widget_2x表示使用 widget_2x.xml 文件作为布局资源。*/
@Override
protected int getBgResourceId(int bgId) {
return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId);
}/*重写父类的 getBgResourceId() 方法,返回用于小部件的背景资源 ID。这里调用了 ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId) 方法,该方法根据传入的背景 ID 返回相应的背景资源 ID。*/
@Override
protected int getWidgetType() {
return Notes.TYPE_WIDGET_2X;
}/*重写父类的 getWidgetType() 方法,返回小部件的类型。这里返回 Notes.TYPE_WIDGET_2X表示这是一个 2x 大小的小部件。*/
}

@ -0,0 +1,45 @@
/*
* 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.widget;
import android.appwidget.AppWidgetManager;
import android.content.Context;
import net.micode.notes.R;
import net.micode.notes.data.Notes;
import net.micode.notes.tool.ResourceParser;
public class NoteWidgetProvider_4x extends NoteWidgetProvider {//创建一个继承自 NoteWidgetProvider 的子类 NoteWidgetProvider_4x。
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
super.update(context, appWidgetManager, appWidgetIds);
}/*重写父类的 onUpdate() 方法,并在其中调用父类的 update() 方法,以更新小部件的显示内容和点击事件。*/
protected int getLayoutId() {
return R.layout.widget_4x;
}/*重写父类的 getLayoutId() 方法,返回用于小部件的布局资源 ID。这里返回 R.layout.widget_4x表示使用 widget_4x.xml 文件作为布局资源。*/
@Override
protected int getBgResourceId(int bgId) {
return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId);
}/*重写父类的 getBgResourceId() 方法,返回用于小部件的背景资源 ID。这里调用了 ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId) 方法,该方法根据传入的背景 ID 返回相应的背景资源 ID。*/
@Override
protected int getWidgetType() {
return Notes.TYPE_WIDGET_4X;
}
}/*重写父类的 getWidgetType() 方法,返回小部件的类型。这里返回 Notes.TYPE_WIDGET_4X表示这是一个 4x 大小的小部件。*/

@ -0,0 +1,410 @@
/*
* 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.ui;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.app.ActionBar;
import android.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceClickListener;
import android.preference.PreferenceActivity;
import android.preference.PreferenceCategory;
import android.text.TextUtils;
import android.text.format.DateFormat;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import net.micode.notes.R;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.gtask.remote.GTaskSyncService;
public class NotesPreferenceActivity extends PreferenceActivity {// 定义了一个常量字符串 PREFERENCE_NAME表示 SharedPreferences 的名称
public static final String PREFERENCE_NAME = "notes_preferences";// 定义了一个常量字符串 PREFERENCE_SYNC_ACCOUNT_NAME表示同步账户名称的键名
public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name";// 定义了一个常量字符串 PREFERENCE_LAST_SYNC_TIME表示上一次同步时间的键名
public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time";// 定义了一个常量字符串 PREFERENCE_SET_BG_COLOR_KEY表示是否随机设置背景颜色的键名
public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear";// 定义了一个常量字符串 PREFERENCE_SYNC_ACCOUNT_KEY表示同步账户的键名
private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key";// 定义了一个常量字符串 PREFERENCE_SYNC_ACCOUNT_KEY表示同步账户的键名
private static final String AUTHORITIES_FILTER_KEY = "authorities";// 定义了一个常量字符串 AUTHORITIES_FILTER_KEY表示过滤器的 authorities 键名
private PreferenceCategory mAccountCategory;// 声明了一个 PreferenceCategory 类型的成员变量 mAccountCategory表示账户分类
private GTaskReceiver mReceiver;// 声明了一个 GTaskReceiver 类型的成员变量 mReceiver表示 GTask 接收器
private Account[] mOriAccounts;// 声明了一个 Account 数组类型的成员变量 mOriAccounts表示原始账户
private boolean mHasAddedAccount;// 声明了一个 boolean 类型的成员变量 mHasAddedAccount表示是否已添加了账户
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
/* using the app icon for navigation */
getActionBar().setDisplayHomeAsUpEnabled(true);
addPreferencesFromResource(R.xml.preferences);// 加载 preferences.xml 文件中的 Preference
mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);// 从 preferences.xml 中找到同步账户分类,赋值给 mAccountCategory
mReceiver = new GTaskReceiver();
IntentFilter filter = new IntentFilter();
filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME);
registerReceiver(mReceiver, filter);// 注册 GTaskReceiver 广播接收器,监听 Gtask 同步服务的消息
mOriAccounts = null;
View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);
getListView().addHeaderView(header, null, true);//将原始账户数组 mOriAccounts 设置为 null。
}
@Override
protected void onResume() {
super.onResume();// onStart 方法,表示 Activity 启动时调用的方
// need to set sync account automatically if user has added a new
// account
if (mHasAddedAccount) {
Account[] accounts = getGoogleAccounts();
if (mOriAccounts != null && accounts.length > mOriAccounts.length) {
for (Account accountNew : accounts) {
boolean found = false;
for (Account accountOld : mOriAccounts) {
if (TextUtils.equals(accountOld.name, accountNew.name)) {
found = true;
break;
}
}
if (!found) {
setSyncAccount(accountNew.name);
break;
}
}
}
}
refreshUI();
}/*1. onCreate() Activity
2. 便Activity
3. preferences.xml Preference
4. preferences.xml mAccountCategory
5. GTaskReceiver 广 GTask
6. mOriAccounts null
7. LayoutInflater R.layout.settings_header
8. ListView
广*/
@Override
protected void onDestroy() {
if (mReceiver != null) {
unregisterReceiver(mReceiver);
}
super.onDestroy();
}/* Android Activity onDestroy()
1. mReceiver null null广
2. onDestroy() Activity
Activity 广 Android 广广 Activity Activity广*/
private void loadAccountPreference() {
mAccountCategory.removeAll();// 清空同步账户分类中的所有设置项
Preference accountPref = new Preference(this);// 创建一个新的 Preference 对象 accountPref
final String defaultAccount = getSyncAccountName(this);// 获取当前默认的同步账户名称
accountPref.setTitle(getString(R.string.preferences_account_title));// 设置 accountPref 的标题和摘要
accountPref.setSummary(getString(R.string.preferences_account_summary)); // 设置 accountPref 的点击事件监听器
accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
public boolean onPreferenceClick(Preference preference) {// 判断是否正在进行同步任务
if (!GTaskSyncService.isSyncing()) {
if (TextUtils.isEmpty(defaultAccount)) {
// the first time to set account
showSelectAccountAlertDialog();//如果当前同步账户为空,则弹出选择账户对话框
} else {
// if the account has already been set, we need to promp
// user about the risk
showChangeAccountConfirmAlertDialog();
}// 如果已经设置了同步账户,则需要提示用户风险
} else {
Toast.makeText(NotesPreferenceActivity.this,
R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT)
.show();// 如果正在进行同步任务,则提示用户无法更改账户
}
return true;// 返回 true表示点击事件已被处理
}
});
mAccountCategory.addPreference(accountPref);// 将 accountPref 添加到同步账户分类中
}
private void loadSyncButton() {
Button syncButton = (Button) findViewById(R.id.preference_sync_button);// 获取同步按钮和上次同步时间的视图对
TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);// 设置同步按钮的状态和点击事件监听器
// set button state
if (GTaskSyncService.isSyncing()) {
syncButton.setText(getString(R.string.preferences_button_sync_cancel)); // 如果正在同步任务中,则将按钮文本设置为“取消同步”,并添加取消同步的点击事件监听器
syncButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
GTaskSyncService.cancelSync(NotesPreferenceActivity.this);
}
});
} else {
syncButton.setText(getString(R.string.preferences_button_sync_immediately));// 如果没有正在同步任务,则将按钮文本设置为“立即同步”,并添加开始同步的点击事件监听器
syncButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
GTaskSyncService.startSync(NotesPreferenceActivity.this);
}
});
}// 根据当前是否设置了同步账户来设置同步按钮的可用状态
syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this)));// 设置上次同步时间的显示状态和文本内容
// set last sync time
if (GTaskSyncService.isSyncing()) {
lastSyncTimeView.setText(GTaskSyncService.getProgressString());
lastSyncTimeView.setVisibility(View.VISIBLE); // 如果正在同步任务中,则显示当前同步进度,并将上次同步时间视图设置为可见状态
} else {
long lastSyncTime = getLastSyncTime(this);
if (lastSyncTime != 0) {
lastSyncTimeView.setText(getString(R.string.preferences_last_sync_time,
DateFormat.format(getString(R.string.preferences_last_sync_time_format),
lastSyncTime)));
lastSyncTimeView.setVisibility(View.VISIBLE);
} else {
lastSyncTimeView.setVisibility(View.GONE);
}
}
}// 如果没有正在同步任务则获取上次同步时间并根据上次同步时间是否为0来设置上次同步时间视图的可见状态和文本内容
private void refreshUI() {
loadAccountPreference();
loadSyncButton();
}/*loadAccountPreference() 方法用于加载和显示当前同步账户的信息,而 loadSyncButton() 方法则用于设置同步按钮的状态和点击事件监听器,并显示上次同步时间的信息。*/
private void showSelectAccountAlertDialog() {
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);// 创建 AlertDialog.Builder 对象
View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);/// 创建自定义标题视图
titleTextView.setText(getString(R.string.preferences_dialog_select_account_title));// 设置标题文本
TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips));// 设置副标题文本
dialogBuilder.setCustomTitle(titleView);// 将自定义标题视图设置到对话框中
dialogBuilder.setPositiveButton(null, null); // 不设置确定按钮和点击事件监听器
Account[] accounts = getGoogleAccounts();
String defAccount = getSyncAccountName(this);// 获取所有谷歌账户的列表和当前同步账户的名称
mOriAccounts = accounts;
mHasAddedAccount = false;// 保存原始账户列表并将“已添加账户”标志设为 false
if (accounts.length > 0) {// 如果找到了至少一个谷歌账户,则创建单选项列表
CharSequence[] items = new CharSequence[accounts.length];// 创建单选项列表的选项文本数组
final CharSequence[] itemMapping = items;// 创建选项文本数组的映射数组
int checkedItem = -1; // 初始化默认选中项的索引为 -1
int index = 0;
for (Account account : accounts) {// 遍历所有谷歌账户,为每个账户设置一个选项
if (TextUtils.equals(account.name, defAccount)) {
checkedItem = index;
}// 如果该账户的名称与当前同步账户的名称相同,则将其作为默认选中项
items[index++] = account.name;// 将该账户的名称添加到选项文本数组中
}
dialogBuilder.setSingleChoiceItems(items, checkedItem, // 将单选项列表设置到对话框中,并为每个选项设置点击事件监听器
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
setSyncAccount(itemMapping[which].toString()); // 将用户选择的账户名称设置为同步账户
dialog.dismiss();// 关闭对话框
refreshUI();// 刷新 UI 界面上的账户和同步按钮状态
}
});
}
View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null);//从布局文件中加载一个视图对象并将其赋值给 addAccountView 变量
dialogBuilder.setView(addAccountView);//将 addAccountView 设置为对话框的自定义视图
final AlertDialog dialog = dialogBuilder.show();//创建一个 AlertDialog 对象,并将其显示出来
addAccountView.setOnClickListener(new View.OnClickListener() {//添加一个点击事件监听器
public void onClick(View v) {
mHasAddedAccount = true;//用户是否已经添加了一个账户
Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] {
"gmail-ls"
});//创建了一个 Intent 对象,用于启动一个系统设置界面,以便让用户添加新的帐户
startActivityForResult(intent, -1);//启动一个新的界面,等待用户添加新的账户
dialog.dismiss();//关闭对话框
}
});
}
private void showChangeAccountConfirmAlertDialog() {
// 创建一个 AlertDialog.Builder 对象
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
// 从布局文件 R.layout.account_dialog_title 中加载一个视图 titleView
View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
// 从 titleView 中找到一个 TextView 对象 titleTextView并设置其文本
TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
titleTextView.setText(getString(R.string.preferences_dialog_change_account_title,
getSyncAccountName(this)));
// 从 titleView 中找到一个 TextView 对象 subtitleTextView并设置其文本
TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg));
// 将 titleView 设置为对话框的自定义标题
dialogBuilder.setCustomTitle(titleView);
// 创建一个 CharSequence 类型的数组 menuItemArray包含三个字符串作为选项菜单的标签文字
CharSequence[] menuItemArray = new CharSequence[] {
getString(R.string.preferences_menu_change_account),
getString(R.string.preferences_menu_remove_account),
getString(R.string.preferences_menu_cancel)
};
dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() { // 创建一个 DialogInterface.OnClickListener 对象,用于处理选项菜单的点击事件
public void onClick(DialogInterface dialog, int which) {// 判断点击了哪个菜单项
if (which == 0) {
showSelectAccountAlertDialog();// 如果点击了第一个菜单项,调用 showSelectAccountAlertDialog() 方法显示“选择帐户”对话框
} else if (which == 1) {
removeSyncAccount();
refreshUI();// 如果点击了第二个菜单项,先调用 removeSyncAccount() 方法删除同步帐户,再调用 refreshUI() 方法刷新界面
}
}
});
dialogBuilder.show();// 显示对话框
}
private Account[] getGoogleAccounts() {
// 获取 AccountManager 对象
AccountManager accountManager = AccountManager.get(this);
// 调用 getAccountsByType() 方法,传入参数 "com.google",以获取所有类型为 "com.google" 的帐户
return accountManager.getAccountsByType("com.google");
}
private void setSyncAccount(String account) {
if (!getSyncAccountName(this).equals(account)) {// 判断传入的 account 是否与当前同步帐户相同
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = settings.edit();// 获取 SharedPreferences 对象
if (account != null) {
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account); // 如果传入的 account 不为 null则将其存储到 SharedPreferences 中
} else {
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, "");// 如果传入的 account 为 null则将空字符串存储到 SharedPreferences 中
}
editor.commit();// 提交修改
// clean up last sync time
setLastSyncTime(this, 0);// 清除上一次同步的时间
// clean up local gtask related info
new Thread(new Runnable() {
public void run() {
ContentValues values = new ContentValues(); // 创建一个 ContentValues 对象,用于更新所有的 note
values.put(NoteColumns.GTASK_ID, "");// 清空 GTasks ID 和 sync ID
values.put(NoteColumns.SYNC_ID, 0);// 清空 GTasks ID 和 sync ID
getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); // 更新所有的 note
}
}).start();
Toast.makeText(NotesPreferenceActivity.this,
getString(R.string.preferences_toast_success_set_accout, account),
Toast.LENGTH_SHORT).show();// 显示一个 Toast提示同步帐户设置成功
}
}
private void removeSyncAccount() {
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); // 获取 SharedPreferences 对象
SharedPreferences.Editor editor = settings.edit();// 获取 SharedPreferences 对象
if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) {
editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME);
}// 如果 SharedPreferences 包含同步帐户名称,则从 SharedPreferences 中删除该名称
if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) {
editor.remove(PREFERENCE_LAST_SYNC_TIME); // 如果 SharedPreferences 包含上一次同步的时间,则从 SharedPreferences 中删除该时间
}
editor.commit(); // 提交修改
// clean up local gtask related info
new Thread(new Runnable() {
public void run() {
ContentValues values = new ContentValues();// 创建一个 ContentValues 对象,用于更新所有的 note
values.put(NoteColumns.GTASK_ID, "");
values.put(NoteColumns.SYNC_ID, 0); // 清空 GTasks ID 和 sync ID
getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
}
}).start();// 更新所有的 note
}
public static String getSyncAccountName(Context context) {
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,// 获取 SharedPreferences 对象
Context.MODE_PRIVATE);
return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, "");// 从 SharedPreferences 中获取同步帐户名称
}
public static void setLastSyncTime(Context context, long time) {
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
Context.MODE_PRIVATE);
SharedPreferences.Editor editor = settings.edit(); // 获取 SharedPreferences 对象
editor.putLong(PREFERENCE_LAST_SYNC_TIME, time);// 将最后一次同步的时间保存到 SharedPreferences 中
editor.commit();// 提交修改
}
public static long getLastSyncTime(Context context) {
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
Context.MODE_PRIVATE);// 获取 SharedPreferences 对象
return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0);// 从 SharedPreferences 中获取最后一次同步的时间
}
private class GTaskReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
refreshUI();// 刷新用户界面
if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) {
TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
syncStatus.setText(intent
.getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG));// 如果正在同步,则更新同步状态
}
}
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
Intent intent = new Intent(this, NotesListActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
return true; // 创建一个 Intent 对象,跳转到 NotesListActivity并清除之前的所有 Activity
default:
return false;// 如果选择的菜单项不是返回主页,则返回 false
}
}
}

@ -0,0 +1,215 @@
/*
* 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.tool;
import android.content.Context;
import android.preference.PreferenceManager;
import net.micode.notes.R;
import net.micode.notes.ui.NotesPreferenceActivity;
public class ResourceParser {
public static final int YELLOW = 0;// 黄色
public static final int BLUE = 1;// 蓝色
public static final int WHITE = 2;// 白色
public static final int GREEN = 3;// 绿色
public static final int RED = 4;// 红色
public static final int BG_DEFAULT_COLOR = YELLOW;// 默认背景颜色
public static final int TEXT_SMALL = 0;// 小号字体
public static final int TEXT_MEDIUM = 1;// 中号字体
public static final int TEXT_LARGE = 2;// 大号字体
public static final int TEXT_SUPER = 3;// 超大号字
public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;// 默认背景字体大小
public static class NoteBgResources {
private final static int [] BG_EDIT_RESOURCES = new int [] {
R.drawable.edit_yellow,
R.drawable.edit_blue,
R.drawable.edit_white,
R.drawable.edit_green,
R.drawable.edit_red
};/*这是一个静态内部类 NoteBgResources其中包含一个名为 BG_EDIT_RESOURCES 的静态常量数组,该数组包含了 5 个整型元素,这些整型元素对应着项目中的一些 drawable 资源 R.drawable.edit_yellow、R.drawable.edit_blue、R.drawable.edit_white、R.drawable.edit_green、R.drawable.edit_red。*/
private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] {
R.drawable.edit_title_yellow,
R.drawable.edit_title_blue,
R.drawable.edit_title_white,
R.drawable.edit_title_green,
R.drawable.edit_title_red
};/*这是一个私有的静态常量数组 BG_EDIT_TITLE_RESOURCES它包含了五个整型元素这些整型元素对应着项目中的一些 drawable 资源 R.drawable.edit_title_yellow、R.drawable.edit_title_blue、R.drawable.edit_title_white、R.drawable.edit_title_green、R.drawable.edit_title_red。*/
public static int getNoteBgResource(int id) {
return BG_EDIT_RESOURCES[id];
}/*一个静态方法 getNoteBgResource(),它接受一个整型参数 id并返回一个整型值。在这个方法中静态常量数组 BG_EDIT_RESOURCES 被索引到,以返回该数组中索引为 id 的元素的值。*/
public static int getNoteTitleBgResource(int id) {
return BG_EDIT_TITLE_RESOURCES[id];
}
}/*一个静态方法 getNoteTitleBgResource(),它接受一个整型参数 id并返回一个整型值。在这个方法中静态常量数组 BG_EDIT_TITLE_RESOURCES 被索引到,以返回该数组中索引为 id 的元素的值。*/
public static int getDefaultBgId(Context context) {
if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length);
} else {
return BG_DEFAULT_COLOR;
}
}/* getDefaultBgId() Context
PreferenceManager.getDefaultSharedPreferences(context) SharedPreferences PREFERENCE_SET_BG_COLOR_KEY true true使 Math.random() NoteBgResources.BG_EDIT_RESOURCES ID PREFERENCE_SET_BG_COLOR_KEY false BG_DEFAULT_COLOR ResourceParser */
public static class NoteItemBgResources {
private final static int [] BG_FIRST_RESOURCES = new int [] {
R.drawable.list_yellow_up,
R.drawable.list_blue_up,
R.drawable.list_white_up,
R.drawable.list_green_up,
R.drawable.list_red_up
};/* NoteItemBgResources BG_FIRST_RESOURCES
5 drawable R.drawable.list_yellow_upR.drawable.list_blue_upR.drawable.list_white_upR.drawable.list_green_upR.drawable.list_red_up*/
private final static int [] BG_NORMAL_RESOURCES = new int [] {
R.drawable.list_yellow_middle,
R.drawable.list_blue_middle,
R.drawable.list_white_middle,
R.drawable.list_green_middle,
R.drawable.list_red_middle
};/* BG_NORMAL_RESOURCES drawable R.drawable.list_yellow_middleR.drawable.list_blue_middleR.drawable.list_white_middleR.drawable.list_green_middleR.drawable.list_red_middle
drawable
R.drawable.list_yellow_middleR.drawable.list_blue_middleR.drawable.list_white_middleR.drawable.list_green_middleR.drawable.list_red_middle */
private final static int [] BG_LAST_RESOURCES = new int [] {
R.drawable.list_yellow_down,
R.drawable.list_blue_down,
R.drawable.list_white_down,
R.drawable.list_green_down,
R.drawable.list_red_down,
};/* BG_LAST_RESOURCES drawable R.drawable.list_yellow_downR.drawable.list_blue_downR.drawable.list_white_downR.drawable.list_green_downR.drawable.list_red_down
drawable R.drawable.list_yellow_downR.drawable.list_blue_downR.drawable.list_white_downR.drawable.list_green_downR.drawable.list_red_down */
private final static int [] BG_SINGLE_RESOURCES = new int [] {
R.drawable.list_yellow_single,
R.drawable.list_blue_single,
R.drawable.list_white_single,
R.drawable.list_green_single,
R.drawable.list_red_single
};/* BG_SINGLE_RESOURCES drawable R.drawable.list_yellow_singleR.drawable.list_blue_singleR.drawable.list_white_singleR.drawable.list_green_singleR.drawable.list_red_single
drawable R.drawable.list_yellow_singleR.drawable.list_blue_singleR.drawable.list_white_singleR.drawable.list_green_singleR.drawable.list_red_single */
public static int getNoteBgFirstRes(int id) {
return BG_FIRST_RESOURCES[id];
}/*一个公共静态方法 getNoteBgFirstRes(),它接受一个整型参数 id并返回一个整型值。*/
public static int getNoteBgLastRes(int id) {
return BG_LAST_RESOURCES[id];
}/* getNoteBgLastRes() id
BG_LAST_RESOURCES id */
public static int getNoteBgSingleRes(int id) {
return BG_SINGLE_RESOURCES[id];
}/* getNoteBgSingleRes() id
BG_SINGLE_RESOURCES id */
public static int getNoteBgNormalRes(int id) {
return BG_NORMAL_RESOURCES[id];
}/* getNoteBgNormalRes() id
BG_NORMAL_RESOURCES id */
public static int getFolderBgRes() {
return R.drawable.list_folder;
}
}/* getFolderBgRes()
list_folder drawable ID*/
public static class WidgetBgResources {
private final static int [] BG_2X_RESOURCES = new int [] {
R.drawable.widget_2x_yellow,
R.drawable.widget_2x_blue,
R.drawable.widget_2x_white,
R.drawable.widget_2x_green,
R.drawable.widget_2x_red,
};/*一个静态内部类 WidgetBgResources它包含一个私有的静态常量数组 BG_2X_RESOURCES该数组包含五个整型元素这些整型元素对应着项目中的一些 drawable 资源 R.drawable.widget_2x_yellow、R.drawable.widget_2x_blue、R.drawable.widget_2x_white、R.drawable.widget_2x_green、R.drawable.widget_2x_red。*/
public static int getWidget2xBgResource(int id) {
return BG_2X_RESOURCES[id];
}
private final static int [] BG_4X_RESOURCES = new int [] {
R.drawable.widget_4x_yellow,
R.drawable.widget_4x_blue,
R.drawable.widget_4x_white,
R.drawable.widget_4x_green,
R.drawable.widget_4x_red
};/* getWidget2xBgResource() id
BG_2X_RESOURCES id
2x2 ID drawable
BG_4X_RESOURCES drawable R.drawable.widget_4x_yellowR.drawable.widget_4x_blueR.drawable.widget_4x_whiteR.drawable.widget_4x_greenR.drawable.widget_4x_red*/
public static int getWidget4xBgResource(int id) {
return BG_4X_RESOURCES[id];
}
}/* getWidget4xBgResource() id
BG_4X_RESOURCES id */
public static class TextAppearanceResources {
private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] {
R.style.TextAppearanceNormal,
R.style.TextAppearanceMedium,
R.style.TextAppearanceLarge,
R.style.TextAppearanceSuper
};/*一个静态内部类 TextAppearanceResources它包含一个私有的静态常量数组 TEXTAPPEARANCE_RESOURCES该数组包含四个整型元素这些整型元素对应着项目中的一些样式资源 R.style.TextAppearanceNormal、R.style.TextAppearanceMedium、R.style.TextAppearanceLarge、R.style.TextAppearanceSuper。*/
public static int getTexAppearanceResource(int id) {
/**
* HACKME: Fix bug of store the resource id in shared preference.
* The id may larger than the length of resources, in this case,
* return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
*/
if (id >= TEXTAPPEARANCE_RESOURCES.length) {
return BG_DEFAULT_FONT_SIZE;
}
return TEXTAPPEARANCE_RESOURCES[id];
}/* getTexAppearanceResource() id
id TEXTAPPEARANCE_RESOURCES BG_DEFAULT_FONT_SIZE
id TEXTAPPEARANCE_RESOURCES TEXTAPPEARANCE_RESOURCES id */
public static int getResourcesSize() {
return TEXTAPPEARANCE_RESOURCES.length;
}
}
}/* getTexAppearanceResource() id
id TEXTAPPEARANCE_RESOURCES BG_DEFAULT_FONT_SIZE
id TEXTAPPEARANCE_RESOURCES TEXTAPPEARANCE_RESOURCES id */

@ -0,0 +1,84 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.micode.notes.data;
import android.content.Context;
import android.database.Cursor;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.Data;
import android.telephony.PhoneNumberUtils;
import android.util.Log;
import java.util.HashMap;
public class Contact {
private static HashMap<String, String> sContactCache;// 用于缓存已查询过的联系人信息
private static final String TAG = "Contact";// 用于日志输出的 TAG
// 查询电话号码与联系人名字匹配的过滤条件
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 = '+')";
/*
*
* @param context
* @param phoneNumber
* @return
*/
public static String getContact(Context context, String phoneNumber) {
// 如果缓存为空,创建新的缓存对象
if(sContactCache == null) {
sContactCache = new HashMap<String, String>();
}
// 如果已经查询过该电话号码,直接返回缓存中的联系人名字
if(sContactCache.containsKey(phoneNumber)) {
return sContactCache.get(phoneNumber);
}
// 构造查询条件
String selection = CALLER_ID_SELECTION.replace("+",
PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
Cursor cursor = context.getContentResolver().query(
Data.CONTENT_URI,
new String [] { Phone.DISPLAY_NAME },
selection,
new String[] { phoneNumber },
null);
// 如果能够查询到联系人信息
if (cursor != null && cursor.moveToFirst()) {
try {
String name = cursor.getString(0);
// 将电话号码与联系人名字加入缓存中
sContactCache.put(phoneNumber, name);
return name;
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, " Cursor get string error " + e.toString());
return null;
} finally {
cursor.close();// 关闭查询结果游标
}
} else {// 如果未能查询到联系人信息,输出日志并返回 null
Log.d(TAG, "No contact matched with number:" + phoneNumber);
return null;
}
}
}

@ -0,0 +1,268 @@
/*
* 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.model;
import android.content.ContentProviderOperation;
import android.content.ContentProviderResult;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.OperationApplicationException;
import android.net.Uri;
import android.os.RemoteException;
import android.util.Log;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.CallNote;
import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.data.Notes.TextNote;
import java.util.ArrayList;
public class Note {
private ContentValues mNoteDiffValues;//声明了一个私有成员变量mNoteDiffValues用于存储笔记的差异数据
private NoteData mNoteData;
private static final String TAG = "Note";// 定义了一个静态常量TAG用于在日志输出时标记日志来源
/**
* Create a new note id for adding a new note to databasesid
*/
public static synchronized long getNewNoteId(Context context, long folderId) {
// Create a new note in the database在数据库中创建一个新笔记
ContentValues values = new ContentValues();// 创建一个ContentValues对象用于存储要添加的笔记数据
long createdTime = System.currentTimeMillis(); // 获取当前时间戳,作为笔记的创建时间和修改时间
values.put(NoteColumns.CREATED_DATE, createdTime);// 将笔记的创建时间存储到ContentValues对象中
values.put(NoteColumns.MODIFIED_DATE, createdTime);// 将笔记的修改时间存储到ContentValues对象中
values.put(NoteColumns.TYPE, Notes.TYPE_NOTE);// 将笔记的类型设置为“普通便签”
values.put(NoteColumns.LOCAL_MODIFIED, 1);// 将笔记的“本地修改”标志设置为“已修改”
values.put(NoteColumns.PARENT_ID, folderId);// 将笔记的父文件夹id存储到ContentValues对象中
Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);// 将ContentValues对象插入到数据库中返回插入的笔记的Uri地址
long noteId = 0; // 定义一个变量用于存储新创建的笔记id
try {
noteId = Long.valueOf(uri.getPathSegments().get(1)); // 从Uri地址中提取新创建的笔记id
} catch (NumberFormatException e) { // 如果提取失败,记录错误日志
Log.e(TAG, "Get note id error :" + e.toString());
noteId = 0;
}
if (noteId == -1) {// 如果便签id异常抛出异常
throw new IllegalStateException("Wrong note id:" + noteId);
}
return noteId;// 返回新创建的便签id
}
public Note() {
mNoteDiffValues = new ContentValues();// 创建一个ContentValues对象用于存储便签的差异数据
mNoteData = new NoteData();// 创建一个NoteData对象用于存储便签的详细数据
}
public void setNoteValue(String key, String value) {
mNoteDiffValues.put(key, value);// 将便签的属性名和属性值存储到ContentValues对象中
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);// 将便签的“本地修改”标志设置为“已修改”
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 将便签的修改时间设置为当前时间戳
}
public void setTextData(String key, String value) {
mNoteData.setTextData(key, value);
}//将便签的文本数据如标题、正文等存储到NoteData对象中
public void setTextDataId(long id) {
mNoteData.setTextDataId(id);
}// 将便签的文本数据的id存储到NoteData对象中
public long getTextDataId() {
return mNoteData.mTextDataId;
}// 返回便签的文本数据的id
public void setCallDataId(long id) {
mNoteData.setCallDataId(id);
}// 将便签的通讯数据的id存储到NoteData对象中
public void setCallData(String key, String value) {
mNoteData.setCallData(key, value);
}// 将便签的通讯数据如联系人、电话号码等存储到NoteData对象中
public boolean isLocalModified() {
return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
}// 检查便签是否被修改过如果便签的差异数据或详细数据被修改过则返回true否则返回false。
public boolean syncNote(Context context, long noteId) {
if (noteId <= 0) {
throw new IllegalArgumentException("Wrong note id:" + noteId);
}// 如果便签id异常抛出异常
if (!isLocalModified()) {
return true;
}// 如果便签没有被修改直接返回true
/**
* In theory, once data changed, the note should be updated on {@link NoteColumns#LOCAL_MODIFIED} and
* {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails, we also update the
* note data info{@link NoteColumns#LOCAL_MODIFIED}{@link NoteColumns#MODIFIED_DATE}
*
*/
if (context.getContentResolver().update(// 更新便签数据
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null,
null) == 0) {
Log.e(TAG, "Update note error, should not happen");// 如果更新失败,记录错误日志
// Do not return, fall through没有返回就是失败
}
mNoteDiffValues.clear();// 清空便签的差异数据
if (mNoteData.isLocalModified()// 更新便签的详细数据
&& (mNoteData.pushIntoContentResolver(context, noteId) == null)) {
return false;// 如果更新失败返回false
}
return true;// 更新成功返回true
}
private class NoteData {// 定义私有字段
private long mTextDataId;// 文本数据的 ID
private ContentValues mTextDataValues;// 文本数据的 ContentValues 对象
private long mCallDataId;// 通话数据的 ID
private ContentValues mCallDataValues;// 通话数据的 ContentValues 对象
private static final String TAG = "NoteData";// 定义静态常量TAG
public NoteData() {// 定义构造函数
mTextDataValues = new ContentValues(); // 初始化文本数据的 ContentValues 对象
mCallDataValues = new ContentValues();// 初始化通话数据的 ContentValues 对象
mTextDataId = 0;// 初始化文本数据的 ID
mCallDataId = 0;// 初始化通话数据的 ID
}
boolean isLocalModified() {// 定义方法 isLocalModified判断数据是否被修改过
return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
}
void setTextDataId(long id) { // 定义方法 setTextDataId设置文本数据的 ID
if(id <= 0) {
throw new IllegalArgumentException("Text data id should larger than 0");
}
mTextDataId = id;
}
void setCallDataId(long id) {// 定义方法 setCallDataId设置通话数据的 ID
if (id <= 0) {
throw new IllegalArgumentException("Call data id should larger than 0");
}
mCallDataId = id;
}
void setCallData(String key, String value) {// 定义方法 setCallData用于设置通话数据的键值对
mCallDataValues.put(key, value);// 将键值对存储在 mCallDataValues 中
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);// 标记数据已被修改
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 记录修改时间
}
void setTextData(String key, String value) {// 定义方法 setTextData用于设置文本数据的键值对
mTextDataValues.put(key, value);// 将键值对存储在 mTextDataValues 中
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记数据已被修改
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());// 记录修改时间
}
/**
* pushIntoContentResolver ContentProvider
* context noteId ID
* noteId 0
* ContentProviderOperation
* mTextDataValues mCallDataValues
* ContentProvider
* mTextDataId mCallDataId 0
* ContentResolver ContentProvider
* URI null
* @param context
* @param noteId
* @return
*/
Uri pushIntoContentResolver(Context context, long noteId) {
/**
* Check for safety
*/
if (noteId <= 0) {
throw new IllegalArgumentException("Wrong note id:" + noteId);
}
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
ContentProviderOperation.Builder builder = null;// 创建一个ContentProviderOperation列表
if(mTextDataValues.size() > 0) {// 如果有文本数据需要更新或添加
mTextDataValues.put(DataColumns.NOTE_ID, noteId);// 设置文本数据的noteId
if (mTextDataId == 0) {
mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);// 如果文本数据的id为0表示需要添加新的文本数据
Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
mTextDataValues);// 插入新的文本数据到数据表中
try {// 从插入结果中获取新插入数据的id
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;// 插入失败清空数据并返回null
}
} else {
builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mTextDataId));
builder.withValues(mTextDataValues);
operationList.add(builder.build());
} // 如果文本数据的id不为0表示需要更新已有的文本数据
mTextDataValues.clear();// 清空文本数据的值
}
if(mCallDataValues.size() > 0) {// 如果有电话数据需要更新或添加
mCallDataValues.put(DataColumns.NOTE_ID, noteId);// 设置电话数据的noteId
if (mCallDataId == 0) {// 如果电话数据的id为0表示需要添加新的电话数据
mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE);
Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
mCallDataValues);// 插入新的电话数据到数据表中
try { // 从插入结果中获取新插入数据的id
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;// 插入失败清空数据并返回null
}
} else {
builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mCallDataId));
builder.withValues(mCallDataValues);
operationList.add(builder.build());
} // 如果电话数据的id不为0表示需要更新已有的电话数据
mCallDataValues.clear(); // 清空电话数据的值
}
if (operationList.size() > 0) { // 如果有操作需要执行
try {// 执行操作并获取结果
ContentProviderResult[] results = context.getContentResolver().applyBatch(
Notes.AUTHORITY, operationList);// 返回操作结果的Uri
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(), e.getMessage()));
return null; // 操作失败返回null并记录日志
} catch (OperationApplicationException e) {
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
return null;// 操作失败返回null并记录日志
}
}
return null;
}
}
}

@ -0,0 +1,304 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.micode.notes.data;
import android.net.Uri;
public class Notes {
public static final String AUTHORITY = "micode_notes"; // 小米便签内容提供器的URI授权
public static final String TAG = "Notes"; // 用于调试和日志记录的标签
// 小米便签支持的三种类型
public static final int TYPE_NOTE = 0; // 笔记
public static final int TYPE_FOLDER = 1;// 文件夹
public static final int TYPE_SYSTEM = 2;// 系统便签
/**
* Following IDs are system folders' identifiers
* {@link Notes#ID_ROOT_FOLDER } is default folder
* {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder
* {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
*/
// 小米便签内置的四个特殊文件夹
public static final int ID_ROOT_FOLDER = 0; // 根文件夹
public static final int ID_TEMPARAY_FOLDER = -1; // 临时文件夹
public static final int ID_CALL_RECORD_FOLDER = -2;// 通话记录文件夹
public static final int ID_TRASH_FOLER = -3; // 回收站文件夹
public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";//提醒时间的Intent extra key用于设置笔记的提醒时间。
public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";//背景颜色的Intent extra key用于设置笔记的背景颜色。
public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";//小部件ID的Intent extra key用于设置小部件的ID。
public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";//小部件类型的Intent extra key用于设置小部件的类型。
public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";//文件夹ID的Intent extra key用于设置笔记所属的文件夹。
public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date";//通话时间的Intent extra key用于设置通话笔记的通话时间。
public static final int TYPE_WIDGET_INVALIDE = -1;//表示无效的小部件类型,其值为-1。
public static final int TYPE_WIDGET_2X = 0;//表示2x2大小的小部件其值为0。
public static final int TYPE_WIDGET_4X = 1;//表示4x4大小的小部件其值为1。
public static class DataConstants {
public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;//指定普通的文本笔记类型
public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;//指定通话记录笔记类型
}//定义笔记的类型
/**
* Uri to query all notes and folders
*/
public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
/**
* Uri to query data
*/
public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
public interface NoteColumns {
/**
* The unique ID for a rowID
* <P> Type: INTEGER (long) </P>
*/
public static final String ID = "_id";
/**
* The parent's id for note or folder ID
* <P> Type: INTEGER (long) </P>
*/
public static final String PARENT_ID = "parent_id";
/**
* Created data for note or folder
* <P> Type: INTEGER (long) </P>
*/
public static final String CREATED_DATE = "created_date";
/**
* Latest modified date
* <P> Type: INTEGER (long) </P>
*/
public static final String MODIFIED_DATE = "modified_date";
/**
* Alert date
* <P> Type: INTEGER (long) </P>
*/
public static final String ALERTED_DATE = "alert_date";
/**
* Folder's name or text content of note
* <P> Type: TEXT </P>
*/
public static final String SNIPPET = "snippet";
/**
* Note's widget id ID
* <P> Type: INTEGER (long) </P>
*/
public static final String WIDGET_ID = "widget_id";
/**
* Note's widget type
* <P> Type: INTEGER (long) </P>
*/
public static final String WIDGET_TYPE = "widget_type";
/**
* Note's background color's id ID
* <P> Type: INTEGER (long) </P>
*/
public static final String BG_COLOR_ID = "bg_color_id";
/**
* For text note, it doesn't has attachment, for multi-media
* note, it has at least one attachment
* <P> Type: INTEGER </P>
*/
public static final String HAS_ATTACHMENT = "has_attachment";
/**
* Folder's count of notes
* <P> Type: INTEGER (long) </P>
*/
public static final String NOTES_COUNT = "notes_count";
/**
* The file type: folder or note
* <P> Type: INTEGER </P>
*/
public static final String TYPE = "type";
/**
* The last sync id ID
* <P> Type: INTEGER (long) </P>
*/
public static final String SYNC_ID = "sync_id";
/**
* Sign to indicate local modified or not
* <P> Type: INTEGER </P>
*/
public static final String LOCAL_MODIFIED = "local_modified";
/**
* Original parent id before moving into temporary folder ID
* <P> Type : INTEGER </P>
*/
public static final String ORIGIN_PARENT_ID = "origin_parent_id";
/**
* The gtask idGoogle ID
* <P> Type : TEXT </P>
*/
public static final String GTASK_ID = "gtask_id";
/**
* The version code
* <P> Type : INTEGER (long) </P>
*/
public static final String VERSION = "version";
}
/**
* DataColumns
* NotesColumns
* DataColumnsNotesColumns
* NotesColumns
* DataColumns
* 使
*/
public interface DataColumns {
/**
* The unique ID for a row
* <P> Type: INTEGER (long) </P>
*/
public static final String ID = "_id";
/**
* The MIME type of the item represented by this row.MIME
* <P> Type: Text </P>
*/
public static final String MIME_TYPE = "mime_type";
/**
* The reference id to note that this data belongs toID
* <P> Type: INTEGER (long) </P>
*/
public static final String NOTE_ID = "note_id";
/**
* Created data for note or folder
* <P> Type: INTEGER (long) </P>
*/
public static final String CREATED_DATE = "created_date";
/**
* Latest modified date
* <P> Type: INTEGER (long) </P>
*/
public static final String MODIFIED_DATE = "modified_date";
/**
* Data's content
* <P> Type: TEXT </P>
*/
public static final String CONTENT = "content";
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* integer data type
* <P> Type: INTEGER </P>
*/
public static final String DATA1 = "data1";
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* integer data type
* <P> Type: INTEGER </P>
*/
public static final String DATA2 = "data2";
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* TEXT data type
* <P> Type: TEXT </P>
*/
public static final String DATA3 = "data3";
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* TEXT data type
* <P> Type: TEXT </P>
*/
public static final String DATA4 = "data4";
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* TEXT data type
* <P> Type: TEXT </P>
*/
public static final String DATA5 = "data5";
}
/**
* NotePadTextNote
* DataColumnsURI
* NotesColumnsTextNote
* MODEMODE_CHECK_LIST
* TextNote访URIURIContentProvidertext_note
*/
public static final class TextNote implements DataColumns {
/**
* Mode to indicate the text in check list mode or not
* <P> Type: Integer 1:check list mode 0: normal mode </P>
*/
public static final String MODE = DATA1;//MODE字段表示文本笔记的模式可以是正常模式或者是带有任务清单的模式类型为整数。它使用了接口中的DATA1字段来表示其存储值的列名。
public static final int MODE_CHECK_LIST = 1;//MODE_CHECK_LIST字段表示任务清单模式的值为1。
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";
//CONTENT_TYPE字段表示此数据的MIME类型指示ContentProvider返回的数据类型。此处表示返回的是文本笔记列表。
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
//CONTENT_ITEM_TYPE字段表示此数据的单个项目的MIME类型。
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
//CONTENT_URI字段表示此数据的URI地址。
}
/**
* NotesCallNoteDataColumns
* CallNoteCALL_DATEPHONE_NUMBER
* ContentProvider使MIMEURI
*/
public static final class CallNote implements DataColumns {
/**
* Call date for this record
* <P> Type: INTEGER (long) </P>
*/
public static final String CALL_DATE = DATA1;
//表示通话日期的列名数据类型为long存储在DATA1列中。
/**
* Phone number for this record
* <P> Type: TEXT </P>
*/
public static final String PHONE_NUMBER = DATA3;
//表示电话号码的列名数据类型为String存储在DATA3列中。
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
//单条通话记录用于指定MIME类型的常量
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
//同上,多条通话记录
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
//该类的内容URI用于访问通话记录。
}
}

@ -0,0 +1,439 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.micode.notes.data;
import android.content.ContentValues;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.DataConstants;
import net.micode.notes.data.Notes.NoteColumns;
/**
* NotesDatabaseHelperSQLiteOpenHelper
* DB_NAMEDB_VERSION
* TABLENOTEDATA
* SQLiteOpenHelperAndroidSQLite
*
*/
public class NotesDatabaseHelper extends SQLiteOpenHelper {
private static final String DB_NAME = "note.db";
private static final int DB_VERSION = 4;
public interface TABLE {
public static final String NOTE = "note";
public static final String DATA = "data";
}
private static final String TAG = "NotesDatabaseHelper";//这一行代码定义了一个名为TAG的字符串常量用于在调试时作为日志标签。
/**
* mInstanceNotesDatabaseHelperstatic
*
* NotesDatabaseHelper
*
*/
private static NotesDatabaseHelper mInstance;
/**
* CREATE_NOTE_TABLE_SQL CREATE_DATA_TABLE_SQL
* note data
*/
private static final String CREATE_NOTE_TABLE_SQL =
"CREATE TABLE " + TABLE.NOTE + "(" +
NoteColumns.ID + " INTEGER PRIMARY KEY," +//笔记 ID整数类型作为主键
NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +//父笔记 ID整数类型不为空默认为 0
NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +//提醒时间,整数类型,不为空,默认为 0
NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +//背景颜色 ID整数类型不为空默认为 0
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//创建时间,整数类型,不为空,默认为当前时间
NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +//是否有附件,整数类型,不为空,默认为 0
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//修改时间,整数类型,不为空,默认为当前时间
NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +//笔记数量,整数类型,不为空,默认为 0
NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +//笔记概要,文本类型,不为空,默认为空字符串
NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +//笔记类型,整数类型,不为空,默认为 0
NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +//小部件 ID整数类型不为空默认为 0
NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +//小部件类型,整数类型,不为空,默认为 -1
NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +//同步 ID整数类型不为空默认为 0
NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +//本地修改标识,整数类型,不为空,默认为 0
NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +//原始父笔记 ID整数类型不为空默认为 0
NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +//Google 任务 ID文本类型不为空默认为空字符串
NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +//版本号,整数类型,不为空,默认为 0
")";
private static final String CREATE_DATA_TABLE_SQL =
"CREATE TABLE " + TABLE.DATA + "(" +
DataColumns.ID + " INTEGER PRIMARY KEY," +//数据 ID整数类型作为主键
DataColumns.MIME_TYPE + " TEXT NOT NULL," +//MIME 类型,文本类型,不为空
DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +//笔记 ID整数类型不为空默认为 0
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//创建时间,整数类型,不为空,默认为当前时间
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +//修改时间,整数类型,不为空,默认为当前时间
DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +//数据内容,文本类型,不为空,默认为空字符串
DataColumns.DATA1 + " INTEGER," +
DataColumns.DATA2 + " INTEGER," +
DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
")";
/**
* SQL"note_id_index"
* "TABLE.DATA"使"DataColumns.NOTE_ID"
* ID
*/
private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
"CREATE INDEX IF NOT EXISTS note_id_index ON " +
TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
//以下是各种 SQLite 数据库的触发器,用于更新数据库
/**
* Increase folder's note count when move note to the folder
*/
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";
/**
* Decrease folder's note count when move note from folder
*/
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";
/**
* Increase folder's note count when insert new note to the folder
*/
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";
/**
* Decrease folder's note count when delete note from the folder
*/
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";
/**
* Update note's content when insert data with type {@link DataConstants#NOTE}DataConstants
*/
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";
/**
* Update note's content when data with {@link DataConstants#NOTE} type has changedDataConstants
*/
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";
/**
* Update note's content when data with {@link DataConstants#NOTE} type has deletedDataConstants
*/
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";
/**
* Delete datas belong to note which has been deleted
*/
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";
/**
* Delete notes belong to folder which has been deleted
*/
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";
/**
* 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 +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END";
/**
* NotesDatabaseHelperSQLite
*
* Context context访
* String DB_NAME
* CursorFactory factorynull使
* int DB_VERSION
*/
public NotesDatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}
/**
*
* SQLCREATE_NOTE_TABLE_SQLreCreateNoteTableTriggers
* createSystemFolder使Log.d
*/
public void createNoteTable(SQLiteDatabase db) {
db.execSQL(CREATE_NOTE_TABLE_SQL);
reCreateNoteTableTriggers(db);
createSystemFolder(db);
Log.d(TAG, "note table has been created");
}
/**
*
* 使DROP TRIGGER使CREATE TRIGGER
* 使便
* @param db
*/
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);
}
/**
*
* ContentValuesIDTYPE
* 使SQLiteDatabaseinsert
* IDNotes
*
*/
private void createSystemFolder(SQLiteDatabase db) {
ContentValues values = new ContentValues();
/**
* call record folder for call notes
*/
values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
/**
* root folder which is default foldermo
*/
values.clear();
values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
/**
* temporary folder which is used for moving note
*/
values.clear();
values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
/**
* create trash folder
*/
values.clear();
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
}
/**
*
* SQLiteDatabaseSQL
* CREATE_DATA_TABLE_SQLSQL
* recreatedatabletriggers
* CREATE_DATA_NOTE_ID_INDEX_SQLSQLNOTE ID
* NOTE IDNOTE
*/
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");
}
/**
* Recreatedatabletriggersinsertupdatedelete
* 使
* update_note_content_on_insert_content_on_update_note_content_on_delete
* data_update_note_content_on_insert_trigger data_update_trigger data_update_note_content_on_delete_trigger
* snippet
*/
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);
}
/**
* NotesDatabaseHelper
* ContextNotesDatabaseHelpernull
* nullNotesDatabaseHelper
* 线访
*/
static synchronized NotesDatabaseHelper getInstance(Context context) {
if (mInstance == null) {
mInstance = new NotesDatabaseHelper(context);
}
return mInstance;
}
/**
* NotesDatabaseHelperonCreateonUpgrade
* onCreate
* 使createNoteTablecreateDataTableNoteData
* onUpgrade
*
* 12Note使createNoteTablecreateDataTable
* 23使Notegtask_id
* 34
* reCreateNoteTableTriggersrecreateDatabletriggers
* IllegalStateException
*/
@Override
public void onCreate(SQLiteDatabase db) {
createNoteTable(db);
createDataTable(db);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
boolean reCreateTriggers = false;
boolean skipV2 = false;
if (oldVersion == 1) {
upgradeToV2(db);
skipV2 = true; // this upgrade including the upgrade from v2 to v3
oldVersion++;
}
if (oldVersion == 2 && !skipV2) {
upgradeToV3(db);
reCreateTriggers = true;
oldVersion++;
}
if (oldVersion == 3) {
upgradeToV4(db);
oldVersion++;
}
if (reCreateTriggers) {
reCreateNoteTableTriggers(db);
reCreateDataTableTriggers(db);
}
if (oldVersion != newVersion) {
throw new IllegalStateException("Upgrade notes database to version " + newVersion
+ "fails");
}
}
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);
}
private void upgradeToV3(SQLiteDatabase db) {
// drop unused triggers
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
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID
+ " TEXT NOT NULL DEFAULT ''");
// add a trash system folder
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);
}
private void upgradeToV4(SQLiteDatabase db) {
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
+ " INTEGER NOT NULL DEFAULT 0");
}
}

@ -0,0 +1,308 @@
/*
* 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 {//定义NotesProvider类它继承自ContentProvider类
private static final UriMatcher mMatcher;//声明UriMatcher实例
private NotesDatabaseHelper mHelper;//声明NotesDatabaseHelper实例用于匹配Uri以确定请求的类型例如是否是请求特定的数据项或者是否是搜索建议请求。
private static final String TAG = "NotesProvider";
private static final int URI_NOTE = 1;//代表笔记数据的URI
private static final int URI_NOTE_ITEM = 2;//代表单个笔记数据的URI
private static final int URI_DATA = 3;//代表附加数据的URI
private static final int URI_DATA_ITEM = 4;//代表单个附加数据的URI
private static final int URI_SEARCH = 5;//代表搜索请求的URI
private static final int URI_SEARCH_SUGGEST = 6;//代表搜索建议请求的URI
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' represents the '\n' character in sqlite. For title and content in the search result,
* we will trim '\n' and white space in order to show more information.
*/
// 定义将在搜索结果中返回的列
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;
// 定义将执行以检索搜索结果的搜索查询
private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION
+ " FROM " + TABLE.NOTE// 指定要搜索的表
+ " WHERE " + NoteColumns.SNIPPET + " LIKE ?"// 指定搜索查询
+ " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER// 排除在垃圾桶文件夹中的笔记
+ " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;// 排除非笔记条目
@Override
public boolean onCreate() {// 获取数据库帮助类的实例
mHelper = NotesDatabaseHelper.getInstance(getContext());
return true;
}
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
Cursor c = null;// 获取可读的数据库实例
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:// 查询单个笔记
id = uri.getPathSegments().get(1);
c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs, null, null, sortOrder);
break;
case URI_DATA:// 查询所有数据
c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null,
sortOrder);
break;
case URI_DATA_ITEM: // 查询单个数据
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:// 搜索笔记
if (sortOrder != null || projection != null) {
throw new IllegalArgumentException(
"do not specify sortOrder, selection, selectionArgs, or projection" + "with this query");
}
String searchString = null;
if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) {
if (uri.getPathSegments().size() > 1) {
searchString = uri.getPathSegments().get(1);
}
} else {
searchString = uri.getQueryParameter("pattern");
}
if (TextUtils.isEmpty(searchString)) {
return null;
}
try {// 搜索所有匹配的笔记
searchString = String.format("%%%s%%", searchString);
c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY,
new String[] { searchString });
} catch (IllegalStateException ex) {
Log.e(TAG, "got exception: " + ex.toString());
}
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
if (c != null) {// 设置通知URI以便在数据更改时通知观察者
c.setNotificationUri(getContext().getContentResolver(), uri);
}
return c;
}
@Override
public Uri insert(Uri uri, ContentValues values) {// 获取可写的 SQLiteDatabase 对象
SQLiteDatabase db = mHelper.getWritableDatabase();// 初始化三个变量,用于存储 note、data 和插入的记录的 ID
long dataId = 0, noteId = 0, insertedId = 0;// 根据传入的 Uri 进行匹配
switch (mMatcher.match(uri)) {
case URI_NOTE:// 向 TABLE.NOTE 表中插入记录,并获取插入的记录的 ID
insertedId = noteId = db.insert(TABLE.NOTE, null, values);
break;
case URI_DATA:
if (values.containsKey(DataColumns.NOTE_ID)) {// 如果 ContentValues 包含 DataColumns.NOTE_ID 列
noteId = values.getAsLong(DataColumns.NOTE_ID);// 获取 DataColumns.NOTE_ID 列的值
} else {
Log.d(TAG, "Wrong data format without note id:" + values.toString());
}//打印日志
insertedId = dataId = db.insert(TABLE.DATA, null, values);// 向 TABLE.DATA 表中插入记录,并获取插入的记录的 ID
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);// 抛出 IllegalArgumentException 异常
}
// Notify the note uri
if (noteId > 0) { // 如果 noteId 大于 0则通知 content resolver 对应的 Uri 对应的数据已经发生了变化
getContext().getContentResolver().notifyChange(
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
}
// Notify the data uri
if (dataId > 0) {// 如果 dataId 大于 0则通知 content resolver 对应的 Uri 对应的数据已经发生了变化
getContext().getContentResolver().notifyChange(
ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
}
return ContentUris.withAppendedId(uri, insertedId); // 返回插入的记录的 Uri
}
@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)) {// 根据传入的 Uri 进行匹配
case URI_NOTE:// 如果匹配到 URI_NOTE
selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 ";// 组合 selection 条件,以确保删除的是用户笔记,而不是系统文件夹
count = db.delete(TABLE.NOTE, selection, selectionArgs);// 删除 TABLE.NOTE 表中符合条件的记录,并返回删除的数量
break;
case URI_NOTE_ITEM: // 如果匹配到 URI_NOTE_ITEM
id = uri.getPathSegments().get(1);// 获取 Uri 中的 ID
/**
* ID that smaller than 0 is system folder which is not allowed to
* trash
*/
long noteId = Long.valueOf(id);
if (noteId <= 0) { // 如果 ID 小于等于 0则直接跳出 switch 语句
break;
}
count = db.delete(TABLE.NOTE,
NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs);// 删除 TABLE.NOTE 表中符合条件的记录,并返回删除的数量
break;
case URI_DATA:// 如果匹配到 URI_DATA
count = db.delete(TABLE.DATA, selection, selectionArgs);// 删除 TABLE.DATA 表中符合条件的记录,并返回删除的数量
deleteData = true;
break;
case URI_DATA_ITEM:// 如果匹配到 URI_DATA_ITEM
id = uri.getPathSegments().get(1); // 获取 Uri 中的 ID
count = db.delete(TABLE.DATA,
DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs);// 删除 TABLE.DATA 表中符合条件的记录,并返回删除的数量
deleteData = true;
break;
default:// 如果无法匹配到 Uri
throw new IllegalArgumentException("Unknown URI " + uri);// 抛出 IllegalArgumentException 异常
}
if (count > 0) {// 如果删除的数量大于 0
if (deleteData) {
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
} // 如果删除的是 TABLE.DATA 表中的记录,则通知 content resolver 对应的 Uri 对应的笔记数据已经发生了变化
getContext().getContentResolver().notifyChange(uri, null);
}
return count;// 返回删除的数量
}
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
int count = 0;// 受影响的行数
String id = null;// 被更新的笔记或数据项的ID
SQLiteDatabase db = mHelper.getWritableDatabase();// 获取可写数据库
boolean updateData = false;// 是否更新数据项
switch (mMatcher.match(uri)) {// 使用 switch 语句处理不同类型的 URI
case URI_NOTE:
increaseNoteVersion(-1, selection, selectionArgs);// 在更新前增加所有受影响的笔记的版本号
count = db.update(TABLE.NOTE, values, selection, selectionArgs);// 更新数据库中的行并获取受影响的行数
break;
case URI_NOTE_ITEM:
id = uri.getPathSegments().get(1);// 在更新前增加笔记的版本号
increaseNoteVersion(Long.valueOf(id), selection, selectionArgs); // 更新数据库中的行并获取受影响的行数
count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs);
break;
case URI_DATA:
count = db.update(TABLE.DATA, values, selection, selectionArgs);
updateData = true;
break;
case URI_DATA_ITEM:
id = uri.getPathSegments().get(1);
count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs);
updateData = true;
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
// 如果有行被更新,通知已注册的 ContentObserver
if (count > 0) {
if (updateData) {
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
}
getContext().getContentResolver().notifyChange(uri, null);
}
return count; // 返回受影响的行数
}
// 辅助方法,如果传递了 selection 参数,则将其添加到 SQL 查询中
private String parseSelection(String selection) {
return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : "");
}
// 辅助方法,在更新笔记之前增加其版本号
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 ");
// 如果传递了 ID 或 selection 参数,则将其添加到 SQL 查询中
if (id > 0 || !TextUtils.isEmpty(selection)) {
sql.append(" WHERE ");
}
if (id > 0) {
sql.append(NoteColumns.ID + "=" + String.valueOf(id));
}
if (!TextUtils.isEmpty(selection)) {
String selectString = id > 0 ? parseSelection(selection) : selection;
for (String args : selectionArgs) {
selectString = selectString.replaceFirst("\\?", args);
}
sql.append(selectString);
}
mHelper.getWritableDatabase().execSQL(sql.toString());// 执行 SQL 查询以更新笔记的版本号
}
@Override
public String getType(Uri uri) {
// TODO Auto-generated method stub这是一个待办事项需要根据 ContentProvider需求添加适当的 MIME类型。
return null;
}
}

@ -0,0 +1,372 @@
/*
* 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.model;
import android.appwidget.AppWidgetManager;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.text.TextUtils;
import android.util.Log;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.CallNote;
import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.DataConstants;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.data.Notes.TextNote;
import net.micode.notes.tool.ResourceParser.NoteBgResources;
public class WorkingNote {
// Note for the working note工作笔记类)
private Note mNote;// 笔记
// Note Id/笔记ID
private long mNoteId;
// Note content笔记内容
private String mContent;
// Note mode笔记模式
private int mMode;
private long mAlertDate;// 提醒日期
private long mModifiedDate;// 修改日期
private int mBgColorId;// 背景颜色ID
private int mWidgetId;// 小部件ID
private int mWidgetType;// 小部件类型
private long mFolderId;// 文件夹ID
private Context mContext;// 上下文
private static final String TAG = "WorkingNote";// 标签
private boolean mIsDeleted;// 是否已删除
private NoteSettingChangedListener mNoteSettingStatusListener;// 笔记设置改变监听器
public static final String[] DATA_PROJECTION = new String[] {// 查询数据时需要返回的列名数组
DataColumns.ID,// ID列
DataColumns.CONTENT, // 内容列
DataColumns.MIME_TYPE, // MIME类型列
DataColumns.DATA1, // 数据列1
DataColumns.DATA2,// 数据列2
DataColumns.DATA3, // 数据列3
DataColumns.DATA4,// 数据列4
};
public static final String[] NOTE_PROJECTION = new String[] {
NoteColumns.PARENT_ID,// 父ID列
NoteColumns.ALERTED_DATE,// 提醒日期列
NoteColumns.BG_COLOR_ID,// 背景颜色ID列
NoteColumns.WIDGET_ID,// 小部件ID列
NoteColumns.WIDGET_TYPE,// 小部件类型列
NoteColumns.MODIFIED_DATE // 修改日期列
};
private static final int DATA_ID_COLUMN = 0;// 数据表中数据ID列的索引常量整数值为0
private static final int DATA_CONTENT_COLUMN = 1; // 数据表中数据内容列的索引常量整数值为1
private static final int DATA_MIME_TYPE_COLUMN = 2;// 数据表中数据MIME类型列的索引常量整数值为2
private static final int DATA_MODE_COLUMN = 3; // 数据表中数据模式列的索引常量整数值为3
private static final int NOTE_PARENT_ID_COLUMN = 0; // 笔记表中笔记父ID列的索引常量整数值为0
private static final int NOTE_ALERTED_DATE_COLUMN = 1;// 笔记表中笔记提醒日期列的索引常量整数值为1
private static final int NOTE_BG_COLOR_ID_COLUMN = 2;// 笔记表中笔记背景色ID列的索引常量整数值为2
private static final int NOTE_WIDGET_ID_COLUMN = 3; // 笔记表中笔记小部件ID列的索引常量整数值为3
private static final int NOTE_WIDGET_TYPE_COLUMN = 4;// 笔记表中笔记小部件类型列的索引常量整数值为4
private static final int NOTE_MODIFIED_DATE_COLUMN = 5;// 笔记表中笔记修改日期列的索引常量整数值为5
// New note construct创建新的笔记构造函数传入上下文和文件夹ID
private WorkingNote(Context context, long folderId) {
mContext = context;// 初始化上下文
mAlertDate = 0;// 提醒日期设置为0
mModifiedDate = System.currentTimeMillis(); // 修改日期设置为当前时间
mFolderId = folderId;// 设置文件夹ID
mNote = new Note(); // 创建一个新的Note对象
mNoteId = 0;// 设置笔记ID为0
mIsDeleted = false;// 设置是否已删除为false
mMode = 0;// 设置工作模式为0
mWidgetType = Notes.TYPE_WIDGET_INVALIDE;// 设置小部件类型为无效类型
}
// Existing note construct加载现有笔记的构造函数传入上下文、笔记ID和文件夹ID
private WorkingNote(Context context, long noteId, long folderId) {
mContext = context; // 初始化上下文
mNoteId = noteId;// 设置笔记ID
mFolderId = folderId;---------------------------// 设置文件夹ID
mIsDeleted = false;// 设置是否已删除为false
mNote = new Note(); // 创建一个新的Note对象
loadNote();// 加载现有笔记
}
private void loadNote() {// 通过笔记ID查询笔记的游标
Cursor cursor = mContext.getContentResolver().query(// 通过笔记ID查询笔记的游标
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
null, null);
if (cursor != null) {
if (cursor.moveToFirst()) {// 从游标中获取笔记的相关信息
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);
}
cursor.close();
} else {// 如果找不到笔记,则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);
}// 加载笔记的数据
loadNoteData();
}
private void loadNoteData() { // 通过笔记ID查询笔记数据的游标
Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
DataColumns.NOTE_ID + "=?", new String[] {
String.valueOf(mNoteId)
}, null);
if (cursor != null) {
if (cursor.moveToFirst()) {
do {// 获取笔记数据的类型
String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
if (DataConstants.NOTE.equals(type)) {// 如果是笔记文本数据则获取内容和模式并设置笔记的文本数据ID
mContent = cursor.getString(DATA_CONTENT_COLUMN);
mMode = cursor.getInt(DATA_MODE_COLUMN);
mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN));
} else if (DataConstants.CALL_NOTE.equals(type)) {
mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN));// 如果是电话笔记数据则设置笔记的电话数据ID
} else {
Log.d(TAG, "Wrong note type with type:" + type);
}// 如果是其他类型的笔记数据,则记录错误日志
} while (cursor.moveToNext());
}
cursor.close();
} else { // 如果找不到笔记数据,则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);
}
}
// 创建一个空笔记
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;
}
// 加载笔记
public static WorkingNote load(Context context, long id) {
return new WorkingNote(context, id, 0);
}
// 保存笔记
public synchronized boolean saveNote() {
if (isWorthSaving()) {
if (!existInDatabase()) {// 如果笔记还不存在于数据库中则为其生成一个新的ID
if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
Log.e(TAG, "Create new note fail with id:" + mNoteId);
return false;
}
}
// 将笔记同步到数据库中
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;
}
}
// 判断笔记是否已经存在于数据库中
public boolean existInDatabase() {
return mNoteId > 0;
}
// 判断笔记是否值得保存
private boolean isWorthSaving() {
if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
|| (existInDatabase() && !mNote.isLocalModified())) {
return false;
} else {
return true;
}
}
// 设置笔记设置状态改变的监听器
public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
mNoteSettingStatusListener = l;
}
// 设置提醒日期
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);
}
}
// 标记笔记是否被删除
public void markDeleted(boolean mark) {
mIsDeleted = mark;
if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onWidgetChanged();
}
}
// 设置笔记的背景颜色
public void setBgColorId(int id) {
if (id != mBgColorId) {
mBgColorId = id;
if (mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onBackgroundColorChanged();
}
mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
}
}
// 设置笔记的检查列表模式
public void setCheckListMode(int mode) {
if (mMode != mode) {
if (mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
}
mMode = mode;
mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
}
}
// 设置笔记的小部件类型
public void setWidgetType(int type) {
if (type != mWidgetType) {
mWidgetType = type;
mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
}
}
// 设置笔记的小部件ID
public void setWidgetId(int id) {
if (id != mWidgetId) {
mWidgetId = id;
mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
}
}
//设置文本内容
public void setWorkingText(String text) {
if (!TextUtils.equals(mContent, text)) {
mContent = text;
mNote.setTextData(DataColumns.CONTENT, mContent);
}
}
//这是一个将笔记转换为电话记录的方法。它包含电话号码和通话日期,并更新笔记对象的值
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));
}
//指示笔记是否有闹钟提醒
public boolean hasClockAlert() {
return (mAlertDate > 0 ? true : false);
}
// 返回笔记的文本内容
public String getContent() {
return mContent;
}
// 返回笔记的警报日期
public long getAlertDate() {
return mAlertDate;
}
// 返回笔记的修改日期
public long getModifiedDate() {
return mModifiedDate;
}
// 返回笔记的背景颜色资源ID
public int getBgColorResId() {
return NoteBgResources.getNoteBgResource(mBgColorId);
}
// 返回笔记的背景颜色ID
public int getBgColorId() {
return mBgColorId;
}
// 返回笔记标题的背景颜色资源ID
public int getTitleBgResId() {
return NoteBgResources.getNoteTitleBgResource(mBgColorId);
}
// 返回笔记的检查清单模式
public int getCheckListMode() {
return mMode;
}
// 返回笔记的ID
public long getNoteId() {
return mNoteId;
}
// 返回笔记所在文件夹的ID
public long getFolderId() {
return mFolderId;
}
// 返回笔记所属的小部件ID
public int getWidgetId() {
return mWidgetId;
}
// 返回笔记所属的小部件类型
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);
}
}

@ -0,0 +1,34 @@
/*
* 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.gtask.exception;
public class ActionFailureException extends RuntimeException {
private static final long serialVersionUID = 4425249765923293627L;
public ActionFailureException() {
super(); // 调用父类的构造函数
}
public ActionFailureException(String paramString) {
super(paramString); // 调用父类的构造函数,并传入异常信息
}
public ActionFailureException(String paramString, Throwable paramThrowable) {
super(paramString, paramThrowable); // 调用父类的构造函数,并传入异常信息和原始异常
}
}

@ -0,0 +1,123 @@
/*
* 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.gtask.remote;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import net.micode.notes.R;
import net.micode.notes.ui.NotesListActivity;
import net.micode.notes.ui.NotesPreferenceActivity;
public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
private static int GTASK_SYNC_NOTIFICATION_ID = 5234235;
public interface OnCompleteListener {
void onComplete();
}
private Context mContext; // 上下文对象
private NotificationManager mNotifiManager; // 通知管理器对象
private GTaskManager mTaskManager; // GTask 管理器对象
private OnCompleteListener mOnCompleteListener; // 异步任务完成后的回调接口
public GTaskASyncTask(Context context, OnCompleteListener listener) {
mContext = context; // 初始化上下文对象
mOnCompleteListener = listener; // 初始化回调接口
mNotifiManager = (NotificationManager) mContext
.getSystemService(Context.NOTIFICATION_SERVICE); // 初始化通知管理器对象
mTaskManager = GTaskManager.getInstance(); // 获取 GTask 管理器对象的单例
}
public void cancelSync() {
mTaskManager.cancelSync(); // 取消 GTask 同步
}
public void publishProgess(String message) {
publishProgress(new String[] {
message
}); // 向主线程发布进度更新
}
private void showNotification(int tickerId, String content) {
Notification notification = new Notification(R.drawable.notification, mContext
.getString(tickerId), System.currentTimeMillis()); // 创建通知
notification.defaults = Notification.DEFAULT_LIGHTS; // 设置默认的通知灯光
notification.flags = Notification.FLAG_AUTO_CANCEL; // 设置通知被点击后自动取消
PendingIntent pendingIntent;
if (tickerId != R.string.ticker_success) { // 如果是同步失败的通知
pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
NotesPreferenceActivity.class), 0); // 点击通知后打开 NotesPreferenceActivity
} else { // 如果是同步成功的通知
pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext,
NotesListActivity.class), 0); // 点击通知后打开 NotesListActivity
}
//notification.setLatestEventInfo(mContext, mContext.getString(R.string.app_name), content,
// pendingIntent); // 设置通知的标题、内容和点击后的操作
mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification); // 发送通知
}
@Override
protected Integer doInBackground(Void... unused) {
publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity
.getSyncAccountName(mContext))); // 向主线程发布进度更新,显示正在登录的提示信息
return mTaskManager.sync(mContext, this); // 开始 GTask 同步,并返回同步结果
}
@Override
protected void onProgressUpdate(String... progress) {
showNotification(R.string.ticker_syncing, progress[0]); // 显示同步进度的通知
if (mContext instanceof GTaskSyncService) {
((GTaskSyncService) mContext).sendBroadcast(progress[0]); // 向 GTaskSyncService 发送广播,以便更新 UI
}
}
@Override
protected void onPostExecute(Integer result) {
if (result == GTaskManager.STATE_SUCCESS) { // 如果同步成功
showNotification(R.string.ticker_success, mContext.getString(
R.string.success_sync_account, mTaskManager.getSyncAccount())); // 显示同步成功的通知
NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis()); // 更新最后同步时间
} else if (result == GTaskManager.STATE_NETWORK_ERROR) { // 如果网络错误
showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_network)); // 显示同步失败的通知,提示网络错误
} else if (result == GTaskManager.STATE_INTERNAL_ERROR) { // 如果内部错误
showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_internal)); // 显示同步失败的通知,提示内部错误
} else if (result == GTaskManager.STATE_SYNC_CANCELLED) { // 如果同步被取消
showNotification(R.string.ticker_cancel, mContext
.getString(R.string.error_sync_cancelled)); // 显示同步被取消的通知
}
if (mOnCompleteListener != null) { // 如果设置了 OnCompleteListener
new Thread(new Runnable() { // 在新线程中执行 OnCompleteListener
public void run() {
mOnCompleteListener.onComplete();
}
}).start();
}
}
}

@ -0,0 +1,668 @@
/*
* 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.gtask.remote;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.accounts.AccountManagerFuture;
import android.app.Activity;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import net.micode.notes.gtask.data.Node;
import net.micode.notes.gtask.data.Task;
import net.micode.notes.gtask.data.TaskList;
import net.micode.notes.gtask.exception.ActionFailureException;
import net.micode.notes.gtask.exception.NetworkFailureException;
import net.micode.notes.tool.GTaskStringUtils;
import net.micode.notes.ui.NotesPreferenceActivity;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.LinkedList;
import java.util.List;
import java.util.zip.GZIPInputStream;
import java.util.zip.Inflater;
import java.util.zip.InflaterInputStream;
public class GTaskClient {
private static final String TAG = GTaskClient.class.getSimpleName();
private static final String GTASK_URL = "https://mail.google.com/tasks/"; // GTask 的基础 URL
private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig"; // 获取 GTask 数据的 URL
private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig"; // 提交 GTask 数据的 URL
private static GTaskClient mInstance = null; // 单例模式,保存 GTaskClient 的唯一实例
private DefaultHttpClient mHttpClient; // HTTP 客户端
private String mGetUrl; // 获取 GTask 数据的完整 URL
private String mPostUrl; // 提交 GTask 数据的完整 URL
private long mClientVersion; // 客户端版本号
private boolean mLoggedin; // 是否已登录
private long mLastLoginTime; // 上次登录时间
private int mActionId; // 操作 ID
private Account mAccount; // GTask 帐户
private JSONArray mUpdateArray; // 待更新的 GTask 数据
private GTaskClient() {
mHttpClient = null; // 初始化 HTTP 客户端为 null
mGetUrl = GTASK_GET_URL; // 初始化获取 GTask 数据的 URL
mPostUrl = GTASK_POST_URL; // 初始化提交 GTask 数据的 URL
mClientVersion = -1; // 初始化客户端版本号为 -1
mLoggedin = false; // 初始化登录状态为 false
mLastLoginTime = 0; // 初始化上次登录时间为 0
mActionId = 1; // 初始化操作 ID 为 1
mAccount = null; // 初始化 GTask 帐户为 null
mUpdateArray = null; // 初始化待更新的 GTask 数据为 null
}/*GTaskClientmHttpClientmAccountmUpdateArray null mGetUrlmPostUrl GTask URLmClientVersion -1mLoggedin falsemLastLoginTime 0mActionId 1
使访privateGTaskClient使GTaskClient*/
public static synchronized GTaskClient getInstance() {
if (mInstance == null) { // 如果唯一实例不存在
mInstance = new GTaskClient(); // 则创建一个新实例
}
return mInstance; // 返回唯一实例
}/*GTaskClientmInstance
线使synchronized线访
mInstanceGTaskClient.getInstance()GTaskClient*/
public boolean login(Activity activity) {
// we suppose that the cookie would expire after 5 minutes
// then we need to re-login
final long interval = 1000 * 60 * 5;
if (mLastLoginTime + interval < System.currentTimeMillis()) {
mLoggedin = false;
}
// need to re-login after account switch
if (mLoggedin
&& !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity
.getSyncAccountName(activity))) {
mLoggedin = false;
}
if (mLoggedin) { // 如果已登录,则直接返回
Log.d(TAG, "already logged in");
return true;
}
mLastLoginTime = System.currentTimeMillis(); // 记录登录时间
String authToken = loginGoogleAccount(activity, false); // 登录 Google 帐户,获取授权令牌
if (authToken == null) { // 如果登录失败,则返回 false
Log.e(TAG, "login google account failed");
return false;
}
// login with custom domain if necessary
if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase()
.endsWith("googlemail.com"))) { // 如果不是 Gmail 或 Googlemail 帐户,则使用自定义域名登录
StringBuilder url = new StringBuilder(GTASK_URL).append("a/"); // 构造自定义域名的 URL
int index = mAccount.name.indexOf('@') + 1;
String suffix = mAccount.name.substring(index);
url.append(suffix + "/");
mGetUrl = url.toString() + "ig"; // 更新获取 GTask 数据的 URL
mPostUrl = url.toString() + "r/ig"; // 更新提交 GTask 数据的 URL
if (tryToLoginGtask(activity, authToken)) { // 尝试登录 GTask
mLoggedin = true; // 登录成功
}
}
// 如果自定义域名登录失败,则使用 Google 官方 URL 登录
if (!mLoggedin) {
mGetUrl = GTASK_GET_URL;
mPostUrl = GTASK_POST_URL;
if (!tryToLoginGtask(activity, authToken)) {
return false;
}
}
mLoggedin = true; // 登录成功
return true;
}/* GTask 5 mLoggedin false
mLoggedin false
true使loginGoogleAccount() Google
false Gmail Googlemail 使 GTask GTask URL GTask
使 Google URL
使mLoggedin true*/
private String loginGoogleAccount(Activity activity, boolean invalidateToken) {
String authToken;
AccountManager accountManager = AccountManager.get(activity); // 获取 AccountManager 实例
Account[] accounts = accountManager.getAccountsByType("com.google"); // 获取所有 Google 帐户
if (accounts.length == 0) { // 如果没有可用的 Google 帐户,则返回 null
Log.e(TAG, "there is no available google account");
return null;
}
String accountName = NotesPreferenceActivity.getSyncAccountName(activity); // 获取设置中的同步帐户名称
Account account = null;
for (Account a : accounts) {
if (a.name.equals(accountName)) { // 如果找到同名帐户,则使用该帐户
account = a;
break;
}
}
if (account != null) {
mAccount = account; // 更新当前使用的帐户
} else {
Log.e(TAG, "unable to get an account with the same name in the settings");
return null;
}
// get the token now
AccountManagerFuture<Bundle> accountManagerFuture = accountManager.getAuthToken(account,
"goanna_mobile", null, activity, null, null); // 获取 token
try {
Bundle authTokenBundle = accountManagerFuture.getResult();
authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN); // 从 Bundle 中获取 token
if (invalidateToken) { // 如果需要使 token 失效
accountManager.invalidateAuthToken("com.google", authToken); // 使 token 失效
loginGoogleAccount(activity, false); // 重新登录
}
} catch (Exception e) { // 获取 token 失败
Log.e(TAG, "get auth token failed");
authToken = null;
}
return authToken; // 返回 token
}
/* Google token访 Google
Google 使
使AccountManager token token
invalidateTokentrue使 token token
*/
private boolean tryToLoginGtask(Activity activity, String authToken) {
if (!loginGtask(authToken)) { // 如果登录 GTask 失败
// maybe the auth token is out of date, now let's invalidate the
// token and try again
authToken = loginGoogleAccount(activity, true); // 使 token 失效并重新登录
if (authToken == null) { // 如果重新登录失败,则返回 false
Log.e(TAG, "login google account failed");
return false;
}
if (!loginGtask(authToken)) { // 如果重新登录 GTask 仍然失败,则返回 false
Log.e(TAG, "login gtask failed");
return false;
}
}
return true; // 登录 GTask 成功,返回 true
}
/* GTaskauthTokenloginGoogleAccount() Google token
GTask 使 token GTask
falsetrue
*/
private boolean loginGtask(String authToken) {
int timeoutConnection = 10000;
int timeoutSocket = 15000;
HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
// 设置 HttpClient 的参数
mHttpClient = new DefaultHttpClient(httpParameters);
BasicCookieStore localBasicCookieStore = new BasicCookieStore();
mHttpClient.setCookieStore(localBasicCookieStore);
HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false);
// login gtask
try {
String loginUrl = mGetUrl + "?auth=" + authToken;
HttpGet httpGet = new HttpGet(loginUrl); // 创建 HTTP GET 请求
HttpResponse response = mHttpClient.execute(httpGet); // 执行请求
// 获取 cookie
List<Cookie> cookies = mHttpClient.getCookieStore().getCookies();
boolean hasAuthCookie = false;
for (Cookie cookie : cookies) {
if (cookie.getName().contains("GTL")) {
hasAuthCookie = true;
}
}
if (!hasAuthCookie) {
Log.w(TAG, "it seems that there is no auth cookie");
}
// 获取客户端版本
String resString = getResponseContent(response.getEntity());
String jsBegin = "_setup(";
String jsEnd = ")}</script>";
int begin = resString.indexOf(jsBegin);
int end = resString.lastIndexOf(jsEnd);
String jsString = null;
if (begin != -1 && end != -1 && begin < end) {
jsString = resString.substring(begin + jsBegin.length(), end);
}
JSONObject js = new JSONObject(jsString);
mClientVersion = js.getLong("v");
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
return false;
} catch (Exception e) {
// simply catch all exceptions
Log.e(TAG, "httpget gtask_url failed");
return false;
}
return true;
}
/*使authToken GTask
HTTP GET authToken URL
cookiemClientVersion
truefalsefalse
*/
private int getActionId() {
return mActionId++; // 返回下一个 action ID并将 mActionId 加 1
}
private HttpPost createHttpPost() {
HttpPost httpPost = new HttpPost(mPostUrl); // 创建一个 HTTP POST 请求
httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8"); // 设置请求头的 Content-Type
httpPost.setHeader("AT", "1"); // 设置请求头的 AT 字段为 1
return httpPost; // 返回创建的 HTTP POST 请求
}/*getActionId() action IDmActionId 1 1
createHttpPost() HTTP POST Content-Type application/x-www-form-urlencoded;charset=utf-8 AT 1
HTTP POST
*/
private String getResponseContent(HttpEntity entity) throws IOException {
String contentEncoding = null;
if (entity.getContentEncoding() != null) {
contentEncoding = entity.getContentEncoding().getValue(); // 获取响应内容的编码方式
Log.d(TAG, "encoding: " + contentEncoding);
}
InputStream input = entity.getContent(); // 获取响应内容的输入流
if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {
input = new GZIPInputStream(entity.getContent()); // 如果响应内容被 gzip 压缩了,则创建一个 GZIPInputStream 解压缩
} else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) {
Inflater inflater = new Inflater(true);
input = new InflaterInputStream(entity.getContent(), inflater); // 如果响应内容被 deflate 压缩了,则创建一个 InflaterInputStream 解压缩
}
try {
InputStreamReader isr = new InputStreamReader(input); // 创建一个 InputStreamReader 对象
BufferedReader br = new BufferedReader(isr); // 创建一个 BufferedReader 对象
StringBuilder sb = new StringBuilder(); // 创建一个 StringBuilder 对象
while (true) {
String buff = br.readLine(); // 逐行读取响应内容
if (buff == null) {
return sb.toString(); // 如果读到了末尾,则返回读取到的响应内容
}
sb = sb.append(buff); // 将读取到的响应内容追加到 StringBuilder 对象中
}
} finally {
input.close(); // 关闭输入流
}
}
/*getResponseContent(HttpEntity entity)HttpEntity
gzip GZIPInputStream ; deflate InflaterInputStream
使 InputStreamReader BufferedReader StringBuilder
*/
private JSONObject postRequest(JSONObject js) throws NetworkFailureException {
if (!mLoggedin) {
Log.e(TAG, "please login first");
throw new ActionFailureException("not logged in");
}
HttpPost httpPost = createHttpPost(); // 创建 HTTP POST 请求
try {
LinkedList<BasicNameValuePair> list = new LinkedList<BasicNameValuePair>();
list.add(new BasicNameValuePair("r", js.toString())); // 将传入的 JSONObject 对象转为字符串,并添加到请求参数中
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8"); // 创建一个 UrlEncodedFormEntity 对象,用于封装请求参数
httpPost.setEntity(entity); // 将 UrlEncodedFormEntity 对象设置为 HTTP POST 请求的实体
// execute the post
HttpResponse response = mHttpClient.execute(httpPost); // 执行 HTTP POST 请求
String jsString = getResponseContent(response.getEntity()); // 获取响应内容,并将其解压(如果响应内容被压缩了),然后转为字符串
return new JSONObject(jsString); // 将响应内容转为 JSONObject 对象
} catch (ClientProtocolException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("postRequest failed");
} catch (IOException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("postRequest failed");
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("unable to convert response content to jsonobject");
} catch (Exception e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("error occurs when posting request");
}
}
/*postRequest(JSONObject js) HTTP POST JSONObject
HTTP POST JSONObject UrlEncodedFormEntity HTTP POST
HTTP POST JSONObject JSONObject
HTTP POST JSONObject
*/
public void createTask(Task task) throws NetworkFailureException {
commitUpdate(); // 提交所有未提交的更新操作
try {
JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象,用于存储操作列表
// action_list
actionList.put(task.getCreateAction(getActionId())); // 将新增任务的操作添加到操作列表中
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将操作列表添加到 JSONObject 对象中
// client_version
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
// post
JSONObject jsResponse = postRequest(jsPost); // 向服务器发送 HTTP POST 请求,并获取响应内容
JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
GTaskStringUtils.GTASK_JSON_RESULTS).get(0); // 从响应内容中获取结果列表,并获取第一个结果
task.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); // 获取新任务的 ID并将其设置为 Task 对象的 gid 属性
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("create task: handing jsonobject failed");
}
}
/*createTask(Task task)commitUpdate()
JSONObject JSONArray JSONObject JSONObject
HTTP POST ID Task gid
JSONObject
*/
public void createTaskList(TaskList tasklist) throws NetworkFailureException {
commitUpdate(); // 提交所有未提交的更新操作
try {
JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象,用于存储操作列表
// action_list
actionList.put(tasklist.getCreateAction(getActionId())); // 将新增任务列表的操作添加到操作列表中
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将操作列表添加到 JSONObject 对象中
// client_version
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
// post
JSONObject jsResponse = postRequest(jsPost); // 向服务器发送 HTTP POST 请求,并获取响应内容
JSONObject jsResult = (JSONObject) jsResponse.getJSONArray(
GTaskStringUtils.GTASK_JSON_RESULTS).get(0); // 从响应内容中获取结果列表,并获取第一个结果
tasklist.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); // 获取新任务列表的 ID并将其设置为 TaskList 对象的 gid 属性
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("create tasklist: handing jsonobject failed");
}
}
/*createTaskList(TaskList tasklist)commitUpdate()
JSONObject JSONArray JSONObject JSONObject
HTTP POST ID TaskList gid
JSONObject
*/
public void commitUpdate() throws NetworkFailureException {
if (mUpdateArray != null) { // 判断更新操作列表是否为空
try {
JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
// action_list
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray); // 将更新操作列表添加到 JSONObject 对象中
// client_version
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
postRequest(jsPost); // 向服务器发送 HTTP POST 请求,提交更新操作
mUpdateArray = null; // 更新操作提交成功后,清空更新操作列表
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("commit update: handing jsonobject failed");
}
}
}
/*commitUpdate() JSONObject JSONObject JSONObject
HTTP POST
JSONObject
*/
public void addUpdateNode(Node node) throws NetworkFailureException {
if (node != null) { // 判断 Node 对象是否为空
// too many update items may result in an error
// set max to 10 items
if (mUpdateArray != null && mUpdateArray.length() > 10) { // 判断更新操作列表是否已满
commitUpdate(); // 如果已满,则提交所有未提交的更新操作
}
if (mUpdateArray == null)
mUpdateArray = new JSONArray(); // 如果更新操作列表还未创建,则创建一个新的 JSONArray 对象
mUpdateArray.put(node.getUpdateAction(getActionId())); // 将 Node 对象的更新操作添加到更新操作列表中
}
}
/*addUpdateNode(Node node) Node
10commitUpdate()
JSONArray
Node
*/
public void moveTask(Task task, TaskList preParent, TaskList curParent)
throws NetworkFailureException {
commitUpdate(); // 先提交所有未提交的更新操作
try {
JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象,用于存储更新操作
JSONObject action = new JSONObject(); // 创建一个新的 JSONObject 对象,用于存储移动任务的操作
// action_list
action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_MOVE); // 设置操作类型为移动任务
action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); // 设置操作 ID
action.put(GTaskStringUtils.GTASK_JSON_ID, task.getGid()); // 设置任务的 GID
if (preParent == curParent && task.getPriorSibling() != null) {
// put prioring_sibing_id only if moving within the tasklist and
// it is not the first one
action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling()); // 如果是在同一任务列表中移动任务,则设置前一个任务的 GID
}
action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid()); // 设置任务的原始任务列表的 GID
action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid()); // 设置任务的目标任务列表的 GID
if (preParent != curParent) {
// put the dest_list only if moving between tasklists
action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid()); // 如果是在不同的任务列表之间移动任务,则设置任务的目标任务列表的 GID
}
actionList.put(action); // 将移动任务的操作添加到更新操作列表中
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将更新操作列表添加到 JSONObject 对象中
// client_version
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
postRequest(jsPost); // 向服务器发送 HTTP POST 请求,提交更新操作
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("move task: handing jsonobject failed");
}
}
/*moveTask(Task task, TaskList preParent, TaskList curParent)
commitUpdate() JSONObject
ID GID GID GID GID GID
JSONObject JSONObject HTTP POST
JSONObject ActionFailureException
*/
public void deleteNode(Node node) throws NetworkFailureException {
commitUpdate(); // 先提交所有未提交的更新操作
try {
JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象,用于存储更新操作
// action_list
node.setDeleted(true); // 将节点标记为已删除
actionList.put(node.getUpdateAction(getActionId())); // 将节点的更新操作添加到更新操作列表中
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将更新操作列表添加到 JSONObject 对象中
// client_version
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 添加客户端版本号到 JSONObject 对象中
postRequest(jsPost); // 向服务器发送 HTTP POST 请求,提交更新操作
mUpdateArray = null; // 将更新操作数组置为空
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("delete node: handing jsonobject failed"); // 处理 JSONObject 对象时出现异常,则抛出 ActionFailureException 异常
}
}
/*
JSONObject
HTTP POST JSONObject ActionFailureException
*/
public JSONArray getTaskLists() throws NetworkFailureException {
if (!mLoggedin) { // 如果用户没有登录,则抛出 ActionFailureException 异常
Log.e(TAG, "please login first");
throw new ActionFailureException("not logged in");
}
try {
HttpGet httpGet = new HttpGet(mGetUrl); // 创建一个新的 HttpGet 请求对象
HttpResponse response = null;
response = mHttpClient.execute(httpGet); // 执行 HttpGet 请求
// get the task list
String resString = getResponseContent(response.getEntity()); // 获取响应内容
String jsBegin = "_setup(";
String jsEnd = ")}</script>";
int begin = resString.indexOf(jsBegin);
int end = resString.lastIndexOf(jsEnd);
String jsString = null;
if (begin != -1 && end != -1 && begin < end) { // 如果响应内容中包含任务列表,那么提取出来
jsString = resString.substring(begin + jsBegin.length(), end);
}
JSONObject js = new JSONObject(jsString); // 将任务列表转换成 JSONObject 对象
return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS); // 返回任务列表数组
} catch (ClientProtocolException e) { // 如果发生协议错误,则抛出 NetworkFailureException 异常
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("gettasklists: httpget failed");
} catch (IOException e) { // 如果发生 I/O 错误,则抛出 NetworkFailureException 异常
Log.e(TAG, e.toString());
e.printStackTrace();
throw new NetworkFailureException("gettasklists: httpget failed");
} catch (JSONException e) { // 如果处理 JSONObject 对象时出现异常,则抛出 ActionFailureException 异常
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("get task lists: handing jasonobject failed");
}
}
/* JSONArray
HttpGet
JSONObject
HttpGet JSONObject NetworkFailureException ActionFailureException
*/
public JSONArray getTaskList(String listGid) throws NetworkFailureException {
commitUpdate(); // 提交所有未提交的更改
try {
JSONObject jsPost = new JSONObject(); // 创建一个新的 JSONObject 对象
JSONArray actionList = new JSONArray(); // 创建一个新的 JSONArray 对象
JSONObject action = new JSONObject(); // 创建一个新的 JSONObject 对象
// action_list
action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL); // 设置 action 的类型为 "getall"
action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); // 设置 action 的 ID
action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid); // 设置 action 操作的任务列表 ID
action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false); // 设置是否获取已删除的任务
actionList.put(action); // 将 action 添加到 action_list 中
jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); // 将 action_list 添加到 jsPost 中
// client_version
jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); // 设置客户端版本号
JSONObject jsResponse = postRequest(jsPost); // 发送请求并获取响应
return jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_TASKS); // 从响应中获取任务列表并返回
} catch (JSONException e) { // 如果处理 JSONObject 对象时出现异常,则抛出 ActionFailureException 异常
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("get task list: handing jsonobject failed");
}
}
/* JSONArray
JSONArray
JSONObject ActionFailureException
*/
public Account getSyncAccount() {
return mAccount;
}
//这个方法返回GTaskClient的同步账户即当前使用的 Google 帐户)。
public void resetUpdateArray() {
mUpdateArray = null;
}
}
/*GTaskClientmUpdateArraynull
commitUpdate()resetUpdateArray()
*/

@ -0,0 +1,122 @@
/*
* 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.gtask.data;
import android.database.Cursor;
import android.util.Log;
import net.micode.notes.tool.GTaskStringUtils;
import org.json.JSONException;
import org.json.JSONObject;
public class MetaData extends Task {
private final static String TAG = MetaData.class.getSimpleName();
private String mRelatedGid = null;
public void setMeta(String gid, JSONObject metaInfo) {
try {
metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
} catch (JSONException e) {
Log.e(TAG, "failed to put related gid");
}
setNotes(metaInfo.toString());
setName(GTaskStringUtils.META_NOTE_NAME);
}
/*
MetaData Task
Meta Data mRelatedGid null
setMeta getRelatedGid
setMeta gid JSON metaInfo
metaInfo GTaskStringUtils.META_HEAD_GTASK_ID gid
使 setNotes metaInfo GTaskStringUtils.META_NOTE_NAME
getRelatedGid mRelatedGid
*/
public String getRelatedGid() {
return mRelatedGid;
}
/*getRelatedGid()
MetaData mRelatedGid gid
*/
@Override
public boolean isWorthSaving() {
return getNotes() != null;
}
/*isWorthSaving() Task
null true
false
*/
@Override
public void setContentByRemoteJSON(JSONObject js) {// 调用父类的方法来设置 JSON 内容
super.setContentByRemoteJSON(js);// 检查是否存在与对象相关联的注释notes
if (getNotes() != null) {
try {
// 将注释内容解析为 JSON 对象
JSONObject metaInfo = new JSONObject(getNotes().trim());
// 从 JSON 对象中提取 GTASK_ID 字段的值,并将其存储在 mRelatedGid 变量中
mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
} catch (JSONException e) {
///如果在解析注释时出现异常,则将 mRelatedGid 变量设置为 null并记录一个警告日志
Log.w(TAG, "failed to get related gid");
mRelatedGid = null;
}
}
}
/* MetaData isWorthSaving setContentByRemoteJSON
isWorthSaving Task
null true false
setContentByRemoteJSON Task
JSONObject js Task setContentByRemoteJSON
null
null JSONObject metaInfo metaInfo GTaskStringUtils.META_HEAD_GTASK_ID
mRelatedGid metaInfo mRelatedGid null*/
@Override
public void setContentByLocalJSON(JSONObject js) {
// this function should not be called
throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
}
@Override
public JSONObject getLocalJSONFromContent() {
throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
}
@Override
public int getSyncAction(Cursor c) {
throw new IllegalAccessError("MetaData:getSyncAction should not be called");
}
}
/*override Task MetaData 使
setContentByLocalJSON IllegalAccessError
getLocalJSONFromContent IllegalAccessError
getSyncAction IllegalAccessError
*/

@ -0,0 +1,34 @@
/*
* 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.gtask.exception;
public class NetworkFailureException extends Exception {
private static final long serialVersionUID = 2107610287180234136L;
public NetworkFailureException() {
super(); // 调用父类的构造函数
}
public NetworkFailureException(String paramString) {
super(paramString); // 调用父类的构造函数,并传入异常信息
}
public NetworkFailureException(String paramString, Throwable paramThrowable) {
super(paramString, paramThrowable); // 调用父类的构造函数,并传入异常信息和原始异常
}
}

@ -0,0 +1,183 @@
/*
* 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.gtask.data;
import android.database.Cursor;
import org.json.JSONObject;
public abstract class Node {
public static final int SYNC_ACTION_NONE = 0;
public static final int SYNC_ACTION_ADD_REMOTE = 1;
public static final int SYNC_ACTION_ADD_LOCAL = 2;
public static final int SYNC_ACTION_DEL_REMOTE = 3;
public static final int SYNC_ACTION_DEL_LOCAL = 4;
public static final int SYNC_ACTION_UPDATE_REMOTE = 5;
public static final int SYNC_ACTION_UPDATE_LOCAL = 6;
public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;
public static final int SYNC_ACTION_ERROR = 8;
private String mGid;
private String mName;
private long mLastModified;
private boolean mDeleted;
/* Node
mGid gid gid
mName
mLastModified
mDeletedtrue false
SYNC_ACTION_*使
SYNC_ACTION_NONE
SYNC_ACTION_ADD_REMOTE
SYNC_ACTION_ADD_LOCAL
SYNC_ACTION_DEL_REMOTE
SYNC_ACTION_DEL_LOCAL
SYNC_ACTION_UPDATE_REMOTE
SYNC_ACTION_UPDATE_LOCAL
SYNC_ACTION_UPDATE_CONFLICT
SYNC_ACTION_ERROR
Node Node Node */
public Node() {
mGid = null;
mName = "";
mLastModified = 0;
mDeleted = false;
}
/* Node mGidmNamemLastModified mDeleted
mGid null
mName
mLastModified 0 0
mDeleted false
*/
public abstract JSONObject getCreateAction(int actionId);
public abstract JSONObject getUpdateAction(int actionId);
public abstract void setContentByRemoteJSON(JSONObject js);
public abstract void setContentByLocalJSON(JSONObject js);
public abstract JSONObject getLocalJSONFromContent();
public abstract int getSyncAction(Cursor c);
/* Node
getCreateAction(int actionId) JSON actionId JSON
getUpdateAction(int actionId) JSON getCreateAction actionId
setContentByRemoteJSON(JSONObject js) JSON
setContentByLocalJSON(JSONObject js) JSON
getLocalJSONFromContent() JSON
getSyncAction(Cursor c)
使 Node */
public void setGid(String gid) {
this.mGid = gid;
}
/* Node setGid gid
String gid
gid mGid 便使
gid
*/
public void setName(String name) {
this.mName = name;
}
/* Node mName
name mName
this
*/
public void setLastModified(long lastModified) {
this.mLastModified = lastModified;
}
/*setLastModifiedlonglastModified
this
lastModifiedmLastModified便getter
*/
public void setDeleted(boolean deleted) {
this.mDeleted = deleted;
}
/*JavasetDeletedbooleandeleted
this
deletedmDeleted便getter
deletedtruedeletedfalse
*/
public String getGid() {
return this.mGid;
}
public String getName() {
return this.mName;
}
/*JavagetGidgetNamemGidmNameID
this
getGidID便使ID
getName
*/
public long getLastModified() {
return this.mLastModified;
}
/*JavagetLastModifiedmLastModified
this
便使
getLastModified便使
*/
public boolean getDeleted() {
return this.mDeleted;
}
/*JavagetDeletedmDeleted
this
便使
getDeletedboolean
truefalse
*/
}

@ -0,0 +1,245 @@
/*
* 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.gtask.data;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.util.Log;
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 net.micode.notes.data.NotesDatabaseHelper.TABLE;
import net.micode.notes.gtask.exception.ActionFailureException;
import org.json.JSONException;
import org.json.JSONObject;
public class SqlData {
private static final String TAG = SqlData.class.getSimpleName();
private static final int INVALID_ID = -99999;
public static final String[] PROJECTION_DATA = new String[] {
DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
DataColumns.DATA3
};
/*JavaSqlData
TAGSqlData
INVALID_IDID-99999
PROJECTION_DATADataColumnsIDMIME_TYPECONTENTDATA1DATA3
访使*/
public static final int DATA_ID_COLUMN = 0;
public static final int DATA_MIME_TYPE_COLUMN = 1;
public static final int DATA_CONTENT_COLUMN = 2;
public static final int DATA_CONTENT_DATA_1_COLUMN = 3;
public static final int DATA_CONTENT_DATA_3_COLUMN = 4;
private ContentResolver mContentResolver;
private boolean mIsCreate;
private long mDataId;
private String mDataMimeType;
private String mDataContent;
private long mDataContentData1;
private String mDataContentData3;
private ContentValues mDiffDataValues;
/*JavaSqlData
DATA_ID_COLUMNID
DATA_MIME_TYPE_COLUMNMIME
DATA_CONTENT_COLUMN
DATA_CONTENT_DATA_1_COLUMNDATA1
DATA_CONTENT_DATA_3_COLUMNDATA3
ContentResolvermContentResolverbooleanmIsCreatelongmDataIdStringmDataMimeTypeStringmDataContentlongmDataContentData1StringmDataContentData3ContentValuesmDiffDataValues
ContentValuesAndroidmDiffDataValues*/
// 构造函数用于初始化一个SqlData对象的实例
public SqlData(Context context) {
mContentResolver = context.getContentResolver();// 获取ContentResolver对象用于访问ContentProvider中的数据
mIsCreate = true;// 初始化数据的创建状态
mDataId = INVALID_ID; // 初始化数据的ID值
mDataMimeType = DataConstants.NOTE;// 初始化数据的MIME类型为NOTE
mDataContent = ""; // 初始化数据的内容为空字符串
mDataContentData1 = 0; // 初始化数据的数据内容Data1为0
mDataContentData3 = "";// 初始化数据的数据内容Data3为空字符串
mDiffDataValues = new ContentValues();// 初始化差异数据的ContentValues对象用于保存数据的不同之处
}
// 定义SqlData类该类用于处理数据库中的数据
public SqlData(Context context, Cursor c) {
// 获取ContentResolver对象
mContentResolver = context.getContentResolver();
// 设置初始状态为非创建状态
mIsCreate = false;
// 从Cursor对象中读取数据并将数据加载到
loadFromCursor(c);
// 创建一个新的ContentValues对象用于存储数据的差异
mDiffDataValues = new ContentValues();
}
/*该构造函数主要是用于初始化SqlData对象并且在初始化过程中从Cursor对象中读取数据同时创建一个新的ContentValues对象以备后续存储数据的差异。*/
/*定义了一个私有方法loadFromCursor该方法接收一个Cursor对象作为参数并且在该方法中从Cursor对象中读取数据将这些数据加载到SqlData对象中。*/
// 从Cursor对象中读取数据并将数据加载到SqlData对象中
private void loadFromCursor(Cursor c) {
// 从Cursor对象中读取数据id
mDataId = c.getLong(DATA_ID_COLUMN);
// 从Cursor对象中读取数据类型
mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
// 从Cursor对象中读取数据内容
mDataContent = c.getString(DATA_CONTENT_COLUMN);
// 从Cursor对象中读取数据内容的第一个数据项
mDataContentData1 = c.getLong(DATA_CONTENT_DATA_1_COLUMN);
// 从Cursor对象中读取数据内容的第三个数据项
mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
}
/*该方法主要是用于从Cursor对象中读取数据并将这些数据加载到SqlData对象的相关成员变量中。其中数据的读取顺序和类型需要与Cursor对象中的列名一一对应。*/
public void setContent(JSONObject js) throws JSONException {// 设置SqlData对象的内容
long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;// 从JSONObject对象中获取数据id
if (mIsCreate || mDataId != dataId) {
mDiffDataValues.put(DataColumns.ID, dataId);
}
mDataId = dataId; // 如果当前SqlData对象是创建状态或者数据id与当前对象的数据id不同将数据id加入到差异数据值对象中
//setContent方法的主要部分用于设置SqlData对象的各个成员变量值并且在设置过程中检查差异数据。
String dataMimeType = js.has(DataColumns.MIME_TYPE) ? js.getString(DataColumns.MIME_TYPE)
: DataConstants.NOTE;
if (mIsCreate || !mDataMimeType.equals(dataMimeType)) {
mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType);
}
mDataMimeType = dataMimeType;
// 从JSONObject对象中获取数据类型并将其设置为SqlData对象的数据类型
String dataContent = js.has(DataColumns.CONTENT) ? js.getString(DataColumns.CONTENT) : "";
if (mIsCreate || !mDataContent.equals(dataContent)) {
mDiffDataValues.put(DataColumns.CONTENT, dataContent);
}
mDataContent = dataContent;
// 从JSONObject对象中获取数据内容的第一个数据项并将其设置为SqlData对象的数据内容的第一个数据项
long dataContentData1 = js.has(DataColumns.DATA1) ? js.getLong(DataColumns.DATA1) : 0;
if (mIsCreate || mDataContentData1 != dataContentData1) {
mDiffDataValues.put(DataColumns.DATA1, dataContentData1);
}
mDataContentData1 = dataContentData1;
// 从JSONObject对象中获取数据内容的第三个数据项并将其设置为SqlData对象的数据内容的第三个数据项
String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : "";
if (mIsCreate || !mDataContentData3.equals(dataContentData3)) {
mDiffDataValues.put(DataColumns.DATA3, dataContentData3);
}
mDataContentData3 = dataContentData3;
}
/*JSONObjectSqlData
SqlDataJSONObject
*/
public JSONObject getContent() throws JSONException {
if (mIsCreate) {
Log.e(TAG, "it seems that we haven't created this in database yet");
return null;
}
JSONObject js = new JSONObject();
js.put(DataColumns.ID, mDataId);
js.put(DataColumns.MIME_TYPE, mDataMimeType);
js.put(DataColumns.CONTENT, mDataContent);
js.put(DataColumns.DATA1, mDataContentData1);
js.put(DataColumns.DATA3, mDataContentData3);
return js;
}
/*getContent()JSONObject
JSONException
mIsCreate boolean true nullJSONObjectmDataIdmDataMimeTypemDataContentmDataContentData1mDataContentData3
JSONObject*/
public void commit(long noteId, boolean validateVersion, long version) {
if (mIsCreate) {
if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
mDiffDataValues.remove(DataColumns.ID);
}
mDiffDataValues.put(DataColumns.NOTE_ID, noteId);
Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues);
try {
mDataId = Long.valueOf(uri.getPathSegments().get(1));
} catch (NumberFormatException e) {
Log.e(TAG, "Get note id error :" + e.toString());
throw new ActionFailureException("create note failed");
}
} else {
if (mDiffDataValues.size() > 0) {
int result = 0;
if (!validateVersion) {
result = mContentResolver.update(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
} else {
result = mContentResolver.update(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
" ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
+ " WHERE " + NoteColumns.VERSION + "=?)", new String[] {
String.valueOf(noteId), String.valueOf(version)
});
}
if (result == 0) {
Log.w(TAG, "there is no update. maybe user updates note when syncing");
}
}
}
mDiffDataValues.clear();
mIsCreate = false;
}
/*commit()
noteId long ID;
validateVersion boolean ;
version long
mIsCreatebooleantrue
mDiffDataValues DataColumns.ID
DataColumns.NOTE_ID noteIdmDiffDataValuesNotes.CONTENT_DATA_URIUriUri ID mDataId
ID ActionFailureException
mIsCreate false
mDiffDataValuesmContentResolver.update()
validateVersion falseNoteColumns.VERSIONversionNoteColumns.IDnoteId
mDiffDataValuesmIsCreate false*/
public long getId() {
return mDataId;
}//定义了一个名为getId()的方法返回一个long类型的值表示当前笔记的ID。
//直接返回成员变量mDataId因此不会引发任何异常。
}
6

@ -0,0 +1,505 @@
/*
* 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.gtask.data;
import android.appwidget.AppWidgetManager;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.util.Log;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.gtask.exception.ActionFailureException;
import net.micode.notes.tool.GTaskStringUtils;
import net.micode.notes.tool.ResourceParser;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
public class SqlNote {
private static final String TAG = SqlNote.class.getSimpleName();
private static final int INVALID_ID = -99999;
public static final String[] PROJECTION_NOTE = new String[] {
NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
NoteColumns.NOTES_COUNT, NoteColumns.PARENT_ID, NoteColumns.SNIPPET, NoteColumns.TYPE,
NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE, NoteColumns.SYNC_ID,
NoteColumns.LOCAL_MODIFIED, NoteColumns.ORIGIN_PARENT_ID, NoteColumns.GTASK_ID,
NoteColumns.VERSION
};
public static final int ID_COLUMN = 0;
public static final int ALERTED_DATE_COLUMN = 1;
public static final int BG_COLOR_ID_COLUMN = 2;
public static final int CREATED_DATE_COLUMN = 3;
public static final int HAS_ATTACHMENT_COLUMN = 4;
public static final int MODIFIED_DATE_COLUMN = 5;
public static final int NOTES_COUNT_COLUMN = 6;
public static final int PARENT_ID_COLUMN = 7;
public static final int SNIPPET_COLUMN = 8;
public static final int TYPE_COLUMN = 9;
public static final int WIDGET_ID_COLUMN = 10;
public static final int WIDGET_TYPE_COLUMN = 11;
public static final int SYNC_ID_COLUMN = 12;
public static final int LOCAL_MODIFIED_COLUMN = 13;
public static final int ORIGIN_PARENT_ID_COLUMN = 14;
public static final int GTASK_ID_COLUMN = 15;
public static final int VERSION_COLUMN = 16;
private Context mContext;
private ContentResolver mContentResolver;
private boolean mIsCreate;
private long mId;
private long mAlertDate;
private int mBgColorId;
private long mCreatedDate;
private int mHasAttachment;
private long mModifiedDate;
private long mParentId;
private String mSnippet;
private int mType;
private int mWidgetId;
private int mWidgetType;
private long mOriginParent;
private long mVersion;
private ContentValues mDiffNoteValues;
private ArrayList<SqlData> mDataList;
public SqlNote(Context context) {
mContext = context;
mContentResolver = context.getContentResolver();
mIsCreate = true;
mId = INVALID_ID;
mAlertDate = 0;
mBgColorId = ResourceParser.getDefaultBgId(context);
mCreatedDate = System.currentTimeMillis();
mHasAttachment = 0;
mModifiedDate = System.currentTimeMillis();
mParentId = 0;
mSnippet = "";
mType = Notes.TYPE_NOTE;
mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
mOriginParent = 0;
mVersion = 0;
mDiffNoteValues = new ContentValues();
mDataList = new ArrayList<SqlData>();
}
public SqlNote(Context context, Cursor c) {
mContext = context;
mContentResolver = context.getContentResolver();
mIsCreate = false;
loadFromCursor(c);
mDataList = new ArrayList<SqlData>();
if (mType == Notes.TYPE_NOTE)
loadDataContent();
mDiffNoteValues = new ContentValues();
}
public SqlNote(Context context, long id) {
mContext = context;
mContentResolver = context.getContentResolver();
mIsCreate = false;
loadFromCursor(id);
mDataList = new ArrayList<SqlData>();
if (mType == Notes.TYPE_NOTE)
loadDataContent();
mDiffNoteValues = new ContentValues();
}
private void loadFromCursor(long id) {
Cursor c = null;
try {
c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
new String[] {
String.valueOf(id)
}, null);
if (c != null) {
c.moveToNext();
loadFromCursor(c);
} else {
Log.w(TAG, "loadFromCursor: cursor = null");
}
} finally {
if (c != null)
c.close();
}
}
private void loadFromCursor(Cursor c) {
mId = c.getLong(ID_COLUMN);
mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
mCreatedDate = c.getLong(CREATED_DATE_COLUMN);
mHasAttachment = c.getInt(HAS_ATTACHMENT_COLUMN);
mModifiedDate = c.getLong(MODIFIED_DATE_COLUMN);
mParentId = c.getLong(PARENT_ID_COLUMN);
mSnippet = c.getString(SNIPPET_COLUMN);
mType = c.getInt(TYPE_COLUMN);
mWidgetId = c.getInt(WIDGET_ID_COLUMN);
mWidgetType = c.getInt(WIDGET_TYPE_COLUMN);
mVersion = c.getLong(VERSION_COLUMN);
}
private void loadDataContent() {
Cursor c = null;
mDataList.clear();
try {
c = mContentResolver.query(Notes.CONTENT_DATA_URI, SqlData.PROJECTION_DATA,
"(note_id=?)", new String[] {
String.valueOf(mId)
}, null);
if (c != null) {
if (c.getCount() == 0) {
Log.w(TAG, "it seems that the note has not data");
return;
}
while (c.moveToNext()) {
SqlData data = new SqlData(mContext, c);
mDataList.add(data);
}
} else {
Log.w(TAG, "loadDataContent: cursor = null");
}
} finally {
if (c != null)
c.close();
}
}
public boolean setContent(JSONObject js) {
try {
JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
Log.w(TAG, "cannot set system folder");
} else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
// for folder we can only update the snnipet and type
String snippet = note.has(NoteColumns.SNIPPET) ? note
.getString(NoteColumns.SNIPPET) : "";
if (mIsCreate || !mSnippet.equals(snippet)) {
mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
}
mSnippet = snippet;
int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
: Notes.TYPE_NOTE;
if (mIsCreate || mType != type) {
mDiffNoteValues.put(NoteColumns.TYPE, type);
}
mType = type;
} else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE) {
JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
long id = note.has(NoteColumns.ID) ? note.getLong(NoteColumns.ID) : INVALID_ID;
if (mIsCreate || mId != id) {
mDiffNoteValues.put(NoteColumns.ID, id);
}
mId = id;
long alertDate = note.has(NoteColumns.ALERTED_DATE) ? note
.getLong(NoteColumns.ALERTED_DATE) : 0;
if (mIsCreate || mAlertDate != alertDate) {
mDiffNoteValues.put(NoteColumns.ALERTED_DATE, alertDate);
}
mAlertDate = alertDate;
int bgColorId = note.has(NoteColumns.BG_COLOR_ID) ? note
.getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgId(mContext);
if (mIsCreate || mBgColorId != bgColorId) {
mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId);
}
mBgColorId = bgColorId;
long createDate = note.has(NoteColumns.CREATED_DATE) ? note
.getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis();
if (mIsCreate || mCreatedDate != createDate) {
mDiffNoteValues.put(NoteColumns.CREATED_DATE, createDate);
}
mCreatedDate = createDate;
int hasAttachment = note.has(NoteColumns.HAS_ATTACHMENT) ? note
.getInt(NoteColumns.HAS_ATTACHMENT) : 0;
if (mIsCreate || mHasAttachment != hasAttachment) {
mDiffNoteValues.put(NoteColumns.HAS_ATTACHMENT, hasAttachment);
}
mHasAttachment = hasAttachment;
long modifiedDate = note.has(NoteColumns.MODIFIED_DATE) ? note
.getLong(NoteColumns.MODIFIED_DATE) : System.currentTimeMillis();
if (mIsCreate || mModifiedDate != modifiedDate) {
mDiffNoteValues.put(NoteColumns.MODIFIED_DATE, modifiedDate);
}
mModifiedDate = modifiedDate;
long parentId = note.has(NoteColumns.PARENT_ID) ? note
.getLong(NoteColumns.PARENT_ID) : 0;
if (mIsCreate || mParentId != parentId) {
mDiffNoteValues.put(NoteColumns.PARENT_ID, parentId);
}
mParentId = parentId;
String snippet = note.has(NoteColumns.SNIPPET) ? note
.getString(NoteColumns.SNIPPET) : "";
if (mIsCreate || !mSnippet.equals(snippet)) {
mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
}
mSnippet = snippet;
int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
: Notes.TYPE_NOTE;
if (mIsCreate || mType != type) {
mDiffNoteValues.put(NoteColumns.TYPE, type);
}
mType = type;
int widgetId = note.has(NoteColumns.WIDGET_ID) ? note.getInt(NoteColumns.WIDGET_ID)
: AppWidgetManager.INVALID_APPWIDGET_ID;
if (mIsCreate || mWidgetId != widgetId) {
mDiffNoteValues.put(NoteColumns.WIDGET_ID, widgetId);
}
mWidgetId = widgetId;
int widgetType = note.has(NoteColumns.WIDGET_TYPE) ? note
.getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE;
if (mIsCreate || mWidgetType != widgetType) {
mDiffNoteValues.put(NoteColumns.WIDGET_TYPE, widgetType);
}
mWidgetType = widgetType;
long originParent = note.has(NoteColumns.ORIGIN_PARENT_ID) ? note
.getLong(NoteColumns.ORIGIN_PARENT_ID) : 0;
if (mIsCreate || mOriginParent != originParent) {
mDiffNoteValues.put(NoteColumns.ORIGIN_PARENT_ID, originParent);
}
mOriginParent = originParent;
for (int i = 0; i < dataArray.length(); i++) {
JSONObject data = dataArray.getJSONObject(i);
SqlData sqlData = null;
if (data.has(DataColumns.ID)) {
long dataId = data.getLong(DataColumns.ID);
for (SqlData temp : mDataList) {
if (dataId == temp.getId()) {
sqlData = temp;
}
}
}
if (sqlData == null) {
sqlData = new SqlData(mContext);
mDataList.add(sqlData);
}
sqlData.setContent(data);
}
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
return false;
}
return true;
}
public JSONObject getContent() {
try {
JSONObject js = new JSONObject();
if (mIsCreate) {
Log.e(TAG, "it seems that we haven't created this in database yet");
return null;
}
JSONObject note = new JSONObject();
if (mType == Notes.TYPE_NOTE) {
note.put(NoteColumns.ID, mId);
note.put(NoteColumns.ALERTED_DATE, mAlertDate);
note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
note.put(NoteColumns.CREATED_DATE, mCreatedDate);
note.put(NoteColumns.HAS_ATTACHMENT, mHasAttachment);
note.put(NoteColumns.MODIFIED_DATE, mModifiedDate);
note.put(NoteColumns.PARENT_ID, mParentId);
note.put(NoteColumns.SNIPPET, mSnippet);
note.put(NoteColumns.TYPE, mType);
note.put(NoteColumns.WIDGET_ID, mWidgetId);
note.put(NoteColumns.WIDGET_TYPE, mWidgetType);
note.put(NoteColumns.ORIGIN_PARENT_ID, mOriginParent);
js.put(GTaskStringUtils.META_HEAD_NOTE, note);
JSONArray dataArray = new JSONArray();
for (SqlData sqlData : mDataList) {
JSONObject data = sqlData.getContent();
if (data != null) {
dataArray.put(data);
}
}
js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
} else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
note.put(NoteColumns.ID, mId);
note.put(NoteColumns.TYPE, mType);
note.put(NoteColumns.SNIPPET, mSnippet);
js.put(GTaskStringUtils.META_HEAD_NOTE, note);
}
return js;
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
return null;
}
public void setParentId(long id) {
mParentId = id;
mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
}
public void setGtaskId(String gid) {
mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
}
public void setSyncId(long syncId) {
mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
}
public void resetLocalModified() {
mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
}
public long getId() {
return mId;
}
public long getParentId() {
return mParentId;
}
public String getSnippet() {
return mSnippet;
}
public boolean isNoteType() {
return mType == Notes.TYPE_NOTE;
}
public void commit(boolean validateVersion) {
if (mIsCreate) {
if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
mDiffNoteValues.remove(NoteColumns.ID);
}
Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues);
try {
mId = Long.valueOf(uri.getPathSegments().get(1));
} catch (NumberFormatException e) {
Log.e(TAG, "Get note id error :" + e.toString());
throw new ActionFailureException("create note failed");
}
if (mId == 0) {
throw new IllegalStateException("Create thread id failed");
}
if (mType == Notes.TYPE_NOTE) {
for (SqlData sqlData : mDataList) {
sqlData.commit(mId, false, -1);
}
}
} else {
if (mId <= 0 && mId != Notes.ID_ROOT_FOLDER && mId != Notes.ID_CALL_RECORD_FOLDER) {
Log.e(TAG, "No such note");
throw new IllegalStateException("Try to update note with invalid id");
}
if (mDiffNoteValues.size() > 0) {
mVersion ++;
int result = 0;
if (!validateVersion) {
result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+ NoteColumns.ID + "=?)", new String[] {
String.valueOf(mId)
});
} else {
result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+ NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
new String[] {
String.valueOf(mId), String.valueOf(mVersion)
});
}
if (result == 0) {
Log.w(TAG, "there is no update. maybe user updates note when syncing");
}
}
if (mType == Notes.TYPE_NOTE) {
for (SqlData sqlData : mDataList) {
sqlData.commit(mId, validateVersion, mVersion);
}
}
}
// refresh local info
loadFromCursor(mId);
if (mType == Notes.TYPE_NOTE)
loadDataContent();
mDiffNoteValues.clear();
mIsCreate = false;
}
}

@ -0,0 +1,351 @@
/*
* 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.gtask.data;
import android.database.Cursor;
import android.text.TextUtils;
import android.util.Log;
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 net.micode.notes.gtask.exception.ActionFailureException;
import net.micode.notes.tool.GTaskStringUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class Task extends Node {
private static final String TAG = Task.class.getSimpleName();
private boolean mCompleted;
private String mNotes;
private JSONObject mMetaInfo;
private Task mPriorSibling;
private TaskList mParent;
public Task() {
super();
mCompleted = false;
mNotes = null;
mPriorSibling = null;
mParent = null;
mMetaInfo = null;
}
public JSONObject getCreateAction(int actionId) {
JSONObject js = new JSONObject();
try {
// action_type
js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
// action_id
js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
// index
js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this));
// entity_delta
JSONObject entity = new JSONObject();
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
GTaskStringUtils.GTASK_JSON_TYPE_TASK);
if (getNotes() != null) {
entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
}
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
// parent_id
js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid());
// dest_parent_type
js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE,
GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
// list_id
js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid());
// prior_sibling_id
if (mPriorSibling != null) {
js.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, mPriorSibling.getGid());
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to generate task-create jsonobject");
}
return js;
}
public JSONObject getUpdateAction(int actionId) {
JSONObject js = new JSONObject();
try {
// action_type
js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
// action_id
js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
// id
js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
// entity_delta
JSONObject entity = new JSONObject();
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
if (getNotes() != null) {
entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
}
entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted());
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to generate task-update jsonobject");
}
return js;
}
public void setContentByRemoteJSON(JSONObject js) {
if (js != null) {
try {
// id
if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
}
// last_modified
if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) {
setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED));
}
// name
if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) {
setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME));
}
// notes
if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) {
setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES));
}
// deleted
if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) {
setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED));
}
// completed
if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) {
setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED));
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to get task content from jsonobject");
}
}
}
public void setContentByLocalJSON(JSONObject js) {
if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)
|| !js.has(GTaskStringUtils.META_HEAD_DATA)) {
Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
}
try {
JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) {
Log.e(TAG, "invalid type");
return;
}
for (int i = 0; i < dataArray.length(); i++) {
JSONObject data = dataArray.getJSONObject(i);
if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
setName(data.getString(DataColumns.CONTENT));
break;
}
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
}
public JSONObject getLocalJSONFromContent() {
String name = getName();
try {
if (mMetaInfo == null) {
// new task created from web
if (name == null) {
Log.w(TAG, "the note seems to be an empty one");
return null;
}
JSONObject js = new JSONObject();
JSONObject note = new JSONObject();
JSONArray dataArray = new JSONArray();
JSONObject data = new JSONObject();
data.put(DataColumns.CONTENT, name);
dataArray.put(data);
js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
js.put(GTaskStringUtils.META_HEAD_NOTE, note);
return js;
} else {
// synced task
JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
for (int i = 0; i < dataArray.length(); i++) {
JSONObject data = dataArray.getJSONObject(i);
if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
data.put(DataColumns.CONTENT, getName());
break;
}
}
note.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
return mMetaInfo;
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
return null;
}
}
public void setMetaInfo(MetaData metaData) {
if (metaData != null && metaData.getNotes() != null) {
try {
mMetaInfo = new JSONObject(metaData.getNotes());
} catch (JSONException e) {
Log.w(TAG, e.toString());
mMetaInfo = null;
}
}
}
public int getSyncAction(Cursor c) {
try {
JSONObject noteInfo = null;
if (mMetaInfo != null && mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) {
noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
}
if (noteInfo == null) {
Log.w(TAG, "it seems that note meta has been deleted");
return SYNC_ACTION_UPDATE_REMOTE;
}
if (!noteInfo.has(NoteColumns.ID)) {
Log.w(TAG, "remote note id seems to be deleted");
return SYNC_ACTION_UPDATE_LOCAL;
}
// validate the note id now
if (c.getLong(SqlNote.ID_COLUMN) != noteInfo.getLong(NoteColumns.ID)) {
Log.w(TAG, "note id doesn't match");
return SYNC_ACTION_UPDATE_LOCAL;
}
if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
// there is no local update
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
// no update both side
return SYNC_ACTION_NONE;
} else {
// apply remote to local
return SYNC_ACTION_UPDATE_LOCAL;
}
} else {
// validate gtask id
if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
Log.e(TAG, "gtask id doesn't match");
return SYNC_ACTION_ERROR;
}
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
// local modification only
return SYNC_ACTION_UPDATE_REMOTE;
} else {
return SYNC_ACTION_UPDATE_CONFLICT;
}
}
} catch (Exception e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
return SYNC_ACTION_ERROR;
}
public boolean isWorthSaving() {
return mMetaInfo != null || (getName() != null && getName().trim().length() > 0)
|| (getNotes() != null && getNotes().trim().length() > 0);
}
public void setCompleted(boolean completed) {
this.mCompleted = completed;
}
public void setNotes(String notes) {
this.mNotes = notes;
}
public void setPriorSibling(Task priorSibling) {
this.mPriorSibling = priorSibling;
}
public void setParent(TaskList parent) {
this.mParent = parent;
}
public boolean getCompleted() {
return this.mCompleted;
}
public String getNotes() {
return this.mNotes;
}
public Task getPriorSibling() {
return this.mPriorSibling;
}
public TaskList getParent() {
return this.mParent;
}
}

@ -0,0 +1,343 @@
/*
* 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.gtask.data;
import android.database.Cursor;
import android.util.Log;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.gtask.exception.ActionFailureException;
import net.micode.notes.tool.GTaskStringUtils;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
public class TaskList extends Node {
private static final String TAG = TaskList.class.getSimpleName();
private int mIndex;
private ArrayList<Task> mChildren;
public TaskList() {
super();
mChildren = new ArrayList<Task>();
mIndex = 1;
}
public JSONObject getCreateAction(int actionId) {
JSONObject js = new JSONObject();
try {
// action_type
js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
// action_id
js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
// index
js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex);
// entity_delta
JSONObject entity = new JSONObject();
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
GTaskStringUtils.GTASK_JSON_TYPE_GROUP);
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to generate tasklist-create jsonobject");
}
return js;
}
public JSONObject getUpdateAction(int actionId) {
JSONObject js = new JSONObject();
try {
// action_type
js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
// action_id
js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
// id
js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
// entity_delta
JSONObject entity = new JSONObject();
entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted());
js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to generate tasklist-update jsonobject");
}
return js;
}
public void setContentByRemoteJSON(JSONObject js) {
if (js != null) {
try {
// id
if (js.has(GTaskStringUtils.GTASK_JSON_ID)) {
setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID));
}
// last_modified
if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) {
setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED));
}
// name
if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) {
setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME));
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
throw new ActionFailureException("fail to get tasklist content from jsonobject");
}
}
}
public void setContentByLocalJSON(JSONObject js) {
if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) {
Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
}
try {
JSONObject folder = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
String name = folder.getString(NoteColumns.SNIPPET);
setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + name);
} else if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
if (folder.getLong(NoteColumns.ID) == Notes.ID_ROOT_FOLDER)
setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_DEFAULT);
else if (folder.getLong(NoteColumns.ID) == Notes.ID_CALL_RECORD_FOLDER)
setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX
+ GTaskStringUtils.FOLDER_CALL_NOTE);
else
Log.e(TAG, "invalid system folder");
} else {
Log.e(TAG, "error type");
}
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
}
public JSONObject getLocalJSONFromContent() {
try {
JSONObject js = new JSONObject();
JSONObject folder = new JSONObject();
String folderName = getName();
if (getName().startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX))
folderName = folderName.substring(GTaskStringUtils.MIUI_FOLDER_PREFFIX.length(),
folderName.length());
folder.put(NoteColumns.SNIPPET, folderName);
if (folderName.equals(GTaskStringUtils.FOLDER_DEFAULT)
|| folderName.equals(GTaskStringUtils.FOLDER_CALL_NOTE))
folder.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
else
folder.put(NoteColumns.TYPE, Notes.TYPE_FOLDER);
js.put(GTaskStringUtils.META_HEAD_NOTE, folder);
return js;
} catch (JSONException e) {
Log.e(TAG, e.toString());
e.printStackTrace();
return null;
}
}
public int getSyncAction(Cursor c) {
try {
if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
// there is no local update
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
// no update both side
return SYNC_ACTION_NONE;
} else {
// apply remote to local
return SYNC_ACTION_UPDATE_LOCAL;
}
} else {
// validate gtask id
if (!c.getString(SqlNote.GTASK_ID_COLUMN).equals(getGid())) {
Log.e(TAG, "gtask id doesn't match");
return SYNC_ACTION_ERROR;
}
if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
// local modification only
return SYNC_ACTION_UPDATE_REMOTE;
} else {
// for folder conflicts, just apply local modification
return SYNC_ACTION_UPDATE_REMOTE;
}
}
} catch (Exception e) {
Log.e(TAG, e.toString());
e.printStackTrace();
}
return SYNC_ACTION_ERROR;
}
public int getChildTaskCount() {
return mChildren.size();
}
public boolean addChildTask(Task task) {
boolean ret = false;
if (task != null && !mChildren.contains(task)) {
ret = mChildren.add(task);
if (ret) {
// need to set prior sibling and parent
task.setPriorSibling(mChildren.isEmpty() ? null : mChildren
.get(mChildren.size() - 1));
task.setParent(this);
}
}
return ret;
}
public boolean addChildTask(Task task, int index) {
if (index < 0 || index > mChildren.size()) {
Log.e(TAG, "add child task: invalid index");
return false;
}
int pos = mChildren.indexOf(task);
if (task != null && pos == -1) {
mChildren.add(index, task);
// update the task list
Task preTask = null;
Task afterTask = null;
if (index != 0)
preTask = mChildren.get(index - 1);
if (index != mChildren.size() - 1)
afterTask = mChildren.get(index + 1);
task.setPriorSibling(preTask);
if (afterTask != null)
afterTask.setPriorSibling(task);
}
return true;
}
public boolean removeChildTask(Task task) {
boolean ret = false;
int index = mChildren.indexOf(task);
if (index != -1) {
ret = mChildren.remove(task);
if (ret) {
// reset prior sibling and parent
task.setPriorSibling(null);
task.setParent(null);
// update the task list
if (index != mChildren.size()) {
mChildren.get(index).setPriorSibling(
index == 0 ? null : mChildren.get(index - 1));
}
}
}
return ret;
}
public boolean moveChildTask(Task task, int index) {
if (index < 0 || index >= mChildren.size()) {
Log.e(TAG, "move child task: invalid index");
return false;
}
int pos = mChildren.indexOf(task);
if (pos == -1) {
Log.e(TAG, "move child task: the task should in the list");
return false;
}
if (pos == index)
return true;
return (removeChildTask(task) && addChildTask(task, index));
}
public Task findChildTaskByGid(String gid) {
for (int i = 0; i < mChildren.size(); i++) {
Task t = mChildren.get(i);
if (t.getGid().equals(gid)) {
return t;
}
}
return null;
}
public int getChildTaskIndex(Task task) {
return mChildren.indexOf(task);
}
public Task getChildTaskByIndex(int index) {
if (index < 0 || index >= mChildren.size()) {
Log.e(TAG, "getTaskByIndex: invalid index");
return null;
}
return mChildren.get(index);
}
public Task getChilTaskByGid(String gid) {
for (Task task : mChildren) {
if (task.getGid().equals(gid))
return task;
}
return null;
}
public ArrayList<Task> getChildTaskList() {
return this.mChildren;
}
public void setIndex(int index) {
this.mIndex = index;
}
public int getIndex() {
return this.mIndex;
}
}

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