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tool和model包阅读

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master
gy 2 years ago
parent 6cce342b72
commit 71d2a819cb
6 changed files with 577 additions and 621 deletions
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199
src/Notes-master/app/src/main/java/net/micode/notes/model/Note.java
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@ -15,34 +15,27 @@
*/
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;
import android.content.ContentProviderOperation;//批量的更新、插入、删除数据。
import android.content.ContentProviderResult;//操作的结果
import android.content.ContentUris;//用于添加和获取Uri后面的ID
import android.content.ContentValues;//一种用来存储基本数据类型数据的存储机制
import android.content.Context;//需要用该类来弄清楚调用者的实例
import android.content.OperationApplicationException;//操作应用程序容错
import android.net.Uri;//表示待操作的数据
import android.os.RemoteException;//远程容错
import android.util.Log;//输出日志，比如说出错、警告等
public class Note {
private ContentValues mNoteDiffValues;//声明了一个私有变量mNoteDiffValues，类型为ContentValues。这个变量用于存储笔记的差异值
private NoteData mNoteData;//声明了一个私有变量mNoteData，类型为NoteData。这个变量用于存储笔记的数据
private static final String TAG = "Note";//声明了一个私有静态常量TAG，类型为String，值为"Note"。这个常量用于在日志中标识笔记类
// private ContentValues mNoteDiffValues;
ContentValues mNoteDiffValues;//
private NoteData mNoteData;
private static final String TAG = "Note";
/**
* Create a new note id for adding a new note to databases
*/
public static synchronized long getNewNoteId(Context context, long folderId) //这是一个公共静态同步方法，用于获取一个新的笔记ID。该方法接收一个Context对象和一个文件夹ID作为参数，并返回一个新的笔记ID
{
public static synchronized long getNewNoteId(Context context, long folderId) {
// Create a new note in the database
ContentValues values = new ContentValues();
long createdTime = System.currentTimeMillis();
@ -50,69 +43,67 @@ public class Note {
values.put(NoteColumns.MODIFIED_DATE, createdTime);
values.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
values.put(NoteColumns.LOCAL_MODIFIED, 1);
values.put(NoteColumns.PARENT_ID, folderId);
values.put(NoteColumns.PARENT_ID, folderId);//将数据写入数据库表格
Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);
//ContentResolver()主要是实现外部应用对ContentProvider中的数据
//进行添加、删除、修改和查询操作
long noteId = 0;
try {
noteId = Long.valueOf(uri.getPathSegments().get(1));
} catch (NumberFormatException e) {
Log.e(TAG, "Get note id error :" + e.toString());
noteId = 0;
}
}//try-catch异常处理
if (noteId == -1) {
throw new IllegalStateException("Wrong note id:" + noteId);
}
return noteId;
}
public Note() //用于初始化mNoteDiffValues和mNoteData对象
{
public Note() {
mNoteDiffValues = new ContentValues();
mNoteData = new NoteData();
}
public void setNoteValue(String key, String value) //用于设置笔记的值，并将修改标志和修改日期设置为当前时间
{
}//定义两个变量用来存储便签的数据，一个是存储便签属性、一个是存储便签内容
public void setNoteValue(String key, String value) {
mNoteDiffValues.put(key, value);
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
}
}//设置数据库表格的标签属性数据
public void setTextData(String key, String value) {
mNoteData.setTextData(key, value);
}//用于设置note的文本数据
}//设置数据库表格的标签文本内容的数据
public void setTextDataId(long id) {
mNoteData.setTextDataId(id);
}//于设置笔记的文本数据ID
}//设置文本数据的ID
public long getTextDataId() {
return mNoteData.mTextDataId;
}//用于获取笔记的文本数据ID
}//得到文本数据的ID
public void setCallDataId(long id) {
mNoteData.setCallDataId(id);
}//于设置笔记的通话数据ID
}//设置电话号码数据的ID
public void setCallData(String key, String value) {
mNoteData.setCallData(key, value);
}//用于设置笔记的通话数据
}//得到电话号码数据的ID
public boolean isLocalModified() {
return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
}//同步笔记。它首先检查笔记是否有本地修改，然后尝试更新数据库中的笔记信息和数据。如果更新失败，则返回false。
public boolean syncNote(Context context, long noteId)//用于同步笔记的数据。它首先检查传入的笔记ID是否有效，然后检查笔记是否有本地修改。如果没有本地修改，则直接返回true。如果有本地修改，它尝试更新数据库中的笔记信息。如果更新失败，则记录错误日志，并继续执行。然后清空笔记的差异值。接着检查笔记数据是否有本地修改，如果有，则尝试将数据推送到ContentResolver中。如果推送失败，则返回false，表示同步失败。最终返回true表示同步成功
{
}//判断是否是本地修改
public boolean syncNote(Context context, long noteId) {
if (noteId <= 0) {
throw new IllegalArgumentException("Wrong note id:" + noteId);
}
if (!isLocalModified()) {
return 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
@ -125,93 +116,82 @@ public class Note {
// Do not return, fall through
}
mNoteDiffValues.clear();
if (mNoteData.isLocalModified()
&& (mNoteData.pushIntoContentResolver(context, noteId) == null)) {
return false;
}
return true;
}
private class NoteData //存储笔记的数据。它包含了文本数据ID、文本数据值、通话数据ID和通话数据值等属性。类中还包含了判断数据是否有本地修改的方法isLocalModified，设置文本数据ID和通话数据ID的方法setTextDataId和setCallDataId，以及设置文本数据和通话数据的方法setTextData和setCallData
{
}//判断数据是否同步
private class NoteData {//定义一个基本的便签内容的数据类，主要包含文本数据和电话号码数据
private long mTextDataId;
private ContentValues mTextDataValues;
private ContentValues mTextDataValues;//文本数据
private long mCallDataId;
private ContentValues mCallDataValues;
private ContentValues mCallDataValues;//电话号码数据
private static final String TAG = "NoteData";
public NoteData() //初始化笔记数据的值和ID
{
public NoteData() {
mTextDataValues = new ContentValues();
mCallDataValues = new ContentValues();
mTextDataId = 0;
mCallDataId = 0;
}
boolean isLocalModified()//用于检查笔记数据是否被本地修改过。如果文本数据或通话数据的值发生了改变，则返回true
{
//下面是上述几个函数的具体实现
boolean isLocalModified() {
return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
}
void setTextDataId(long id) //设置文本数据的ID
{
void setTextDataId(long id) {
if(id <= 0) {
throw new IllegalArgumentException("Text data id should larger than 0");
}
mTextDataId = id;
}
void setCallDataId(long id)//设置通话数据的ID
{
void setCallDataId(long id) {
if (id <= 0) {
throw new IllegalArgumentException("Call data id should larger than 0");
}
mCallDataId = id;
}
void setCallData(String key, String value) //用于设置通话数据的键值对，并标记笔记数据已被本地修改
{
void setCallData(String key, String value) {
mCallDataValues.put(key, value);
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
}
void setTextData(String key, String value)//用于设置文本数据的键值对，并标记笔记数据已被本地修改
{
void setTextData(String key, String value) {
mTextDataValues.put(key, value);
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
}
Uri pushIntoContentResolver(Context context, long noteId)//用于将笔记数据推送到ContentResolver。它接受上下文和笔记ID作为参数，并返回一个Uri对象。该方法首先检查笔记ID的有效性，然后根据文本数据和通话数据的情况构建ContentProviderOperation列表，并通过applyBatch方法将数据应用到ContentResolver。最终返回一个Uri对象，表示数据的推送结果。
{
//下面函数的作用是将新的数据通过Uri的操作存储到数据库
Uri pushIntoContentResolver(Context context, long noteId) {
/**
* Check for safety
*/
if (noteId <= 0) //检查笔记ID是否小于等于0，如果是则抛出IllegalArgumentException异常，表示笔记ID不合法
{
if (noteId <= 0) {
throw new IllegalArgumentException("Wrong note id:" + noteId);
}
}//判断数据是否合法
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
ContentProviderOperation.Builder builder = null;
if(mTextDataValues.size() > 0) //检查文本数据的值是否存在
{
ContentProviderOperation.Builder builder = null;//数据库的操作列表
if(mTextDataValues.size() > 0) {
mTextDataValues.put(DataColumns.NOTE_ID, noteId);
if (mTextDataId == 0) //检查文本数据的ID是否为0，如果是则表示需要插入新的文本数据
{
mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);//将文本数据的MIME类型添加到文本数据的值中
if (mTextDataId == 0) {
mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);
Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
mTextDataValues);//将文本数据的值插入到ContentResolver中，并返回插入数据的URI
mTextDataValues);
try {
setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));//从URI中获取插入数据的ID，并设置为文本数据的ID
setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
} catch (NumberFormatException e) {
Log.e(TAG, "Insert new text data fail with noteId" + noteId);
mTextDataValues.clear();
@ -219,15 +199,14 @@ public class Note {
}
} else {
builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mTextDataId));//创建一个更新操作的ContentProviderOperation.Builder对象，用于更新文本数据
builder.withValues(mTextDataValues);//将文本数据的值添加到更新操作中
operationList.add(builder.build());//将更新操作添加到操作列表中
Notes.CONTENT_DATA_URI, mTextDataId));
builder.withValues(mTextDataValues);
operationList.add(builder.build());
}
mTextDataValues.clear();//清空文本数据的值，准备处理下一条数据
}
if(mCallDataValues.size() > 0) //检查通话数据的值是否存在，如果存在则进行类似的处理
{
mTextDataValues.clear();
}//把文本数据存入DataColumns
if(mCallDataValues.size() > 0) {
mCallDataValues.put(DataColumns.NOTE_ID, noteId);
if (mCallDataId == 0) {
mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE);
@ -247,14 +226,14 @@ public class Note {
operationList.add(builder.build());
}
mCallDataValues.clear();
}
}//把电话号码数据存入DataColumns
if (operationList.size() > 0) {
try {
ContentProviderResult[] results = context.getContentResolver().applyBatch(
Notes.AUTHORITY, operationList);
return (results == null || results.length == 0 || results[0] == null) ? null
: ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId);//根据操作的结果返回对应的URI，如果操作失败则返回null
: ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId);
} catch (RemoteException e) {
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
return null;
@ -262,7 +241,7 @@ public class Note {
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
return null;
}
}
}//存储过程中的异常处理
return null;
}
}

259
src/Notes-master/app/src/main/java/net/micode/notes/model/WorkingNote.java
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@ -15,23 +15,7 @@
*/
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
private Note mNote;
@ -41,27 +25,22 @@ public class WorkingNote {
private String mContent;
// Note mode
private int mMode;
private long mAlertDate;
private long mModifiedDate;
private int mBgColorId;
private int mWidgetId;
private int mWidgetType;
private long mFolderId;
private Context mContext;
private static final String TAG = "WorkingNote";
private boolean mIsDeleted;
private NoteSettingChangedListener mNoteSettingStatusListener;
// 声明 DATA_PROJECTION字符串数组
public static final String[] DATA_PROJECTION = new String[] {
DataColumns.ID,
DataColumns.CONTENT,
@ -71,7 +50,8 @@ public class WorkingNote {
DataColumns.DATA3,
DataColumns.DATA4,
};
// 声明 NOTE_PROJECTION字符串数组
public static final String[] NOTE_PROJECTION = new String[] {
NoteColumns.PARENT_ID,
NoteColumns.ALERTED_DATE,
@ -80,35 +60,21 @@ public class WorkingNote {
NoteColumns.WIDGET_TYPE,
NoteColumns.MODIFIED_DATE
};
private static final int DATA_ID_COLUMN = 0;
private static final int DATA_CONTENT_COLUMN = 1;
private static final int DATA_MIME_TYPE_COLUMN = 2;
private static final int DATA_MODE_COLUMN = 3;
private static final int NOTE_PARENT_ID_COLUMN = 0;
private static final int NOTE_ALERTED_DATE_COLUMN = 1;
private static final int NOTE_BG_COLOR_ID_COLUMN = 2;
private static final int NOTE_WIDGET_ID_COLUMN = 3;
private static final int NOTE_WIDGET_TYPE_COLUMN = 4;
private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
// New note construct
private WorkingNote(Context context, long folderId) //创建一个新的空白笔记。它初始化了一些基本属性
{
public WorkingNote(Context context, long folderId) {
mContext = context;
mAlertDate = 0;
mModifiedDate = System.currentTimeMillis();
mFolderId = folderId;
@ -118,10 +84,10 @@ public class WorkingNote {
mMode = 0;
mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
}
// WorkingNote的构造函数
// Existing note construct
private WorkingNote(Context context, long noteId, long folderId) //加载现有的笔记。它接受一个笔记ID和文件夹ID作为参数，并加载对应的笔记数据。
{
private WorkingNote(Context context, long noteId, long folderId) {
mContext = context;
mNoteId = noteId;
mFolderId = folderId;
@ -129,13 +95,15 @@ public class WorkingNote {
mNote = new Note();
loadNote();
}
private void loadNote() //用于加载笔记的基本信息，如背景颜色、小部件ID和类型、提醒日期等
{
// 加载Note
// 通过数据库调用query函数找到第一个条目
private void loadNote() {
Cursor cursor = mContext.getContentResolver().query(
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
null, null);
// 若存在，储存相应信息
if (cursor != null) {
if (cursor.moveToFirst()) {
mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
@ -146,22 +114,24 @@ public class WorkingNote {
mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
}
cursor.close();
// 若不存在，报错
} else {
Log.e(TAG, "No note with id:" + mNoteId);
throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
}
loadNoteData();
}
private void loadNoteData() //用于加载笔记的具体数据，如内容、模式等
{
// 加载NoteData
private void loadNoteData() {
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()) {
// 查到信息不为空
if (cursor.moveToFirst()) { // 查看第一项是否存在
do {
String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
if (DataConstants.NOTE.equals(type)) {
@ -173,7 +143,7 @@ public class WorkingNote {
} else {
Log.d(TAG, "Wrong note type with type:" + type);
}
} while (cursor.moveToNext());
} while (cursor.moveToNext());//查阅所有项,直到为空
}
cursor.close();
} else {
@ -181,35 +151,35 @@ public class WorkingNote {
throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId);
}
}
// 创建空的Note
// 传参：context，文件夹id，widget，背景颜色
public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
int widgetType, int defaultBgColorId) //用于创建一个新的空白笔记。它接受上下文、文件夹ID、小部件ID、小部件类型和默认背景颜色ID作为参数，并返回一个新的WorkingNote实例
{
int widgetType, int defaultBgColorId) {
WorkingNote note = new WorkingNote(context, folderId);
// 设定相关属性
note.setBgColorId(defaultBgColorId);
note.setWidgetId(widgetId);
note.setWidgetType(widgetType);
return note;
}
public static WorkingNote load(Context context, long id) {
return new WorkingNote(context, id, 0);
}
public synchronized boolean saveNote() //保存便签
{
if (isWorthSaving())//首先检查便签是否值得保存。如果不值得保存，则直接返回false
{
if (!existInDatabase()) {
if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0)//调用Note.getNewNoteId方法获取一个新的笔记ID，并将其赋值给mNoteId
{
// 保存Note
public synchronized boolean saveNote() {
if (isWorthSaving()) { //是否值得保存
if (!existInDatabase()) { // 是否存在数据库中
if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
Log.e(TAG, "Create new note fail with id:" + mNoteId);
return false;//如果获取失败（返回的ID为0），则记录错误日志并返回false
return false;
}
}
mNote.syncNote(mContext, mNoteId);//调用mNote对象的syncNote方法来同步笔记数据。这将尝试更新数据库中的笔记信息和数据
mNote.syncNote(mContext, mNoteId);
/**
* Update widget content if there exist any widget of this note
*/
@ -217,20 +187,21 @@ public class WorkingNote {
&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE
&& mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onWidgetChanged();
}//如果笔记关联的小部件ID有效且小部件类型有效，且存在笔记设置状态监听器，则调用mNoteSettingStatusListener的onWidgetChanged方法来更新小部件的内容
}
return true;
} else {
return false;
}
}
// 是否在数据库中存在
public boolean existInDatabase() {
return mNoteId > 0;
}
//用于检查笔记是否已存在于数据库中。它返回一个布尔值，表示笔记是否存在于数据库中。如果笔记ID大于0，则表示笔记已存在于数据库中
private boolean isWorthSaving()//用于判断笔记是否值得保存。它返回一个布尔值，表示笔记是否值得保存。如果笔记已被标记为删除，或者笔记不存在于数据库中且内容为空，或者笔记存在于数据库中且没有本地修改，则返回false，否则返回true。
{
// 是否值得保存
private boolean isWorthSaving() {
// 被删除，或（不在数据库中 内容为空），或 本地已保存过
if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
|| (existInDatabase() && !mNote.isLocalModified())) {
return false;
@ -238,13 +209,16 @@ public class WorkingNote {
return true;
}
}
// 设置mNoteSettingStatusListener
public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
mNoteSettingStatusListener = l;
}
public void setAlertDate(long date, boolean set) //用于设置提醒日期。如果传入的日期与当前日期不同，则更新笔记的提醒日期，并调用笔记设置状态监听器的onClockAlertChanged方法
{
// 设置AlertDate
// 若 mAlertDate与data不同，则更改mAlertDate并设定NoteValue
public void setAlertDate(long date, boolean set) {
if (date != mAlertDate) {
mAlertDate = date;
mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate));
@ -253,19 +227,21 @@ public class WorkingNote {
mNoteSettingStatusListener.onClockAlertChanged(date, set);
}
}
public void markDeleted(boolean mark) //标记笔记是否已被删除。如果传入的标记值与当前标记值不同，则更新笔记的删除标记，并调用笔记设置状态监听器的onWidgetChanged方法
{
// 设定删除标记
public void markDeleted(boolean mark) {
// 设定标记
mIsDeleted = mark;
if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onWidgetChanged();
// 调用mNoteSettingStatusListener的 onWidgetChanged方法
}
}
public void setBgColorId(int id) //设置笔记的背景颜色。如果传入的颜色ID与当前颜色ID不同，则更新笔记的颜色ID，并调用笔记设置状态监听器的onBackgroundColorChanged方法
{
if (id != mBgColorId) {
// 设定背景颜色
public void setBgColorId(int id) {
if (id != mBgColorId) { //设定条件 id != mBgColorId
mBgColorId = id;
if (mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onBackgroundColorChanged();
@ -273,10 +249,11 @@ public class WorkingNote {
mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
}
}
public void setCheckListMode(int mode)//设置笔记的检查列表模式。如果传入的模式值与当前模式值不同，则更新笔记的模式值，并调用笔记设置状态监听器的onCheckListModeChanged方法
{
if (mMode != mode) {
// 设定检查列表模式
// 参数：mode
public void setCheckListMode(int mode) {
if (mMode != mode) { //设定条件 mMode != mode
if (mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
}
@ -284,103 +261,125 @@ public class WorkingNote {
mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
}
}
public void setWidgetType(int type) //用于设置笔记所属的小部件类型。如果传入的类型值与当前类型值不同，则更新笔记的类型值
{
if (type != mWidgetType) {
// 设定WidgetType
// 参数：type
public void setWidgetType(int type) {
if (type != mWidgetType) {//设定条件 type != mWidgetType
mWidgetType = type;
mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
// 调用Note的setNoteValue方法更改WidgetType
}
}
public void setWidgetId(int id) //设置笔记所属的小部件ID。如果传入的ID值与当前ID值不同，则更新笔记的ID值。
{
if (id != mWidgetId) {
// 设定WidgetId
// 参数：id
public void setWidgetId(int id) {
if (id != mWidgetId) {//设定条件 id != mWidgetId
mWidgetId = id;
mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
// 调用Note的setNoteValue方法更改WidgetId
}
}
public void setWorkingText(String text) //设置笔记的工作文本。如果传入的文本与当前文本不同，则更新笔记的文本值。
{
if (!TextUtils.equals(mContent, text)) {
// 设定WorkingTex
// 参数：更改的text
public void setWorkingText(String text) {
if (!TextUtils.equals(mContent, text)) {//设定条件 mContent, text内容不同
mContent = text;
mNote.setTextData(DataColumns.CONTENT, mContent);
}//首先检查便签是否值得保存。如果不值得保存，则直接返回false
// 调用Note的setTextData方法更改WorkingText
}
}
public void convertToCallNote(String phoneNumber, long callDate)//用于将笔记转换为通话记录笔记。它将笔记的类型设置为通话记录，设置通话日期和电话号码，并将笔记的父ID设置为通话记录文件夹的ID
{
// 转变mNote的CallData及CallNote信息
// 参数：String phoneNumber, long callDate
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));
}
// 判断是否有时钟题型
public boolean hasClockAlert() {
return (mAlertDate > 0 ? true : false);
}
//检查笔记是否设置了闹钟提醒。它返回一个布尔值，表示笔记是否设置了闹钟提醒。如果笔记的提醒日期大于0，则表示笔记设置了闹钟提醒
// 获取Content
public String getContent() {
return mContent;
}
//获取笔记的内容
// 获取AlertDate
public long getAlertDate() {
return mAlertDate;
}
//获取笔记的提醒日期
// 获取ModifiedDate
public long getModifiedDate() {
return mModifiedDate;
}
//获取笔记的修改日期
// 获取背景颜色来源id
public int getBgColorResId() {
return NoteBgResources.getNoteBgResource(mBgColorId);
}
//获取笔记的背景颜色资源ID
// 获取背景颜色id
public int getBgColorId() {
return mBgColorId;
}
// 获取标题背景颜色id
public int getTitleBgResId() {
return NoteBgResources.getNoteTitleBgResource(mBgColorId);
}
// 获取CheckListMode
public int getCheckListMode() {
return mMode;
}
// 获取便签id
public long getNoteId() {
return mNoteId;
}
//获取笔记的ID
// 获取文件夹id
public long getFolderId() {
return mFolderId;
}
//获取笔记所属的文件夹ID
// 获取WidgetId
public int getWidgetId() {
return mWidgetId;
}
//获取笔记所属的小部件ID
// 获取WidgetType
public int getWidgetType() {
return mWidgetType;
}
//用于获取笔记所属的小部件类型
public interface NoteSettingChangedListener {
// 创建接口 NoteSettingChangedListener,便签更新监视
// 为NoteEditActivity提供接口
// 提供函数有
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

255
src/Notes-master/app/src/main/java/net/micode/notes/tool/BackupUtils.java
Unescape View File

@ -14,182 +14,166 @@
* limitations under the License.
*/
package net.micode.notes.tool;// 声明包
import android.content.Context;// 导入 Android 的 Context 类
import android.database.Cursor;// 导入 Android 的 Cursor 类
import android.os.Environment;// 导入 Android 的 Environment 类
import android.text.TextUtils;// 导入 Android 的 TextUtils 类
import android.text.format.DateFormat;// 导入 Android 的 DateFormat 类
import android.util.Log;// 导入 Android 的 Log 类
import net.micode.notes.R;// 导入便签应用的资源类
import net.micode.notes.data.Notes;// 导入便签应用的 Notes 类
import net.micode.notes.data.Notes.DataColumns; // 导入便签应用的数据列类
import net.micode.notes.data.Notes.DataConstants;// 导入便签应用的数据常量类
import net.micode.notes.data.Notes.NoteColumns;// 导入便签应用的便签列类
import java.io.File;// 导入文件类
import java.io.FileNotFoundException;// 导入文件未找到异常类
import java.io.FileOutputStream;// 导入文件输出流类
import java.io.IOException;// 导入 IO 异常类
import java.io.PrintStream;// 导入打印流类
public class BackupUtils { // 备份工具类定义开始
private static final String TAG = "BackupUtils";// 定义日志标签
package net.micode.notes.tool;
public class BackupUtils {
private static final String TAG = "BackupUtils";
// Singleton stuff
private static BackupUtils sInstance; // 单例模式
public static synchronized BackupUtils getInstance(Context context) {// 获取单例实例的方法
if (sInstance == null) {// 如果实例为空
sInstance = new BackupUtils(context);// 创建新的实例
private static BackupUtils sInstance; //类里面为什么可以定义自身类的对象？
public static synchronized BackupUtils getInstance(Context context) {
//ynchronized 关键字，代表这个方法加锁,相当于不管哪一个线程（例如线程A）
//运行到这个方法时,都要检查有没有其它线程B（或者C、 D等）正在用这个方法(或者该类的其他同步方法)，有的话要等正在使用synchronized方法的线程B（或者C 、D）运行完这个方法后再运行此线程A,没有的话,锁定调用者,然后直接运行。
//它包括两种用法：synchronized 方法和 synchronized 块。
if (sInstance == null) {
//如果当前备份不存在，则新声明一个
sInstance = new BackupUtils(context);
}
return sInstance;// 返回实例
return sInstance;
}
/**
* 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;// 表示当前 SD 卡未挂载
// The backup file not exist
public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;// 备份文件不存在
// The data is not well formated, may be changed by other programs
public static final int STATE_DATA_DESTROIED = 2;// 数据格式损毁，可能被其他程序修改
// Some run-time exception which causes restore or backup fails
public static final int STATE_SYSTEM_ERROR = 3;// 一些运行时异常导致恢复或备份失败
// Backup or restore success
public static final int STATE_SUCCESS = 4;// 备份或恢复成功
private TextExport mTextExport;// 文本导出实例
private BackupUtils(Context context) {
mTextExport = new TextExport(context);// 初始化文本导出实例
// Currently, the sdcard is not mounted SD卡没有被装入手机
public static final int STATE_SD_CARD_UNMOUONTED = 0;
// The backup file not exist 备份文件夹不存在
public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
// The data is not well formated, may be changed by other programs 数据已被破坏，可能被修改
public static final int STATE_DATA_DESTROIED = 2;
// Some run-time exception which causes restore or backup fails 超时异常
public static final int STATE_SYSTEM_ERROR = 3;
// Backup or restore success 成功存储
public static final int STATE_SUCCESS = 4;
private TextExport mTextExport;
private BackupUtils(Context context) { //初始化函数
mTextExport = new TextExport(context);
}
private static boolean externalStorageAvailable() {// 检查外部存储是否可用
private static boolean externalStorageAvailable() { //外部存储功能是否可用
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
}
public int exportToText() {// 导出到文本方法
return mTextExport.exportToText();// 调用文本导出实例的导出方法
public int exportToText() {
return mTextExport.exportToText();
}
public String getExportedTextFileName() {// 获取导出的文本文件名
return mTextExport.mFileName;// 返回导出的文本文件名
public String getExportedTextFileName() {
return mTextExport.mFileName;
}
public String getExportedTextFileDir() {// 获取导出的文本文件目录
return mTextExport.mFileDirectory;// 返回导出的文本文件目录
public String getExportedTextFileDir() {
return mTextExport.mFileDirectory;
}
private static class TextExport {// 定义文本导出类
private static final String[] NOTE_PROJECTION = {// 笔记投影数组
NoteColumns.ID,// 笔记 ID
NoteColumns.MODIFIED_DATE, // 修改日期
NoteColumns.SNIPPET,// 笔记片段
NoteColumns.TYPE // 笔记类型
private static class TextExport {
private static final String[] NOTE_PROJECTION = {
NoteColumns.ID,
NoteColumns.MODIFIED_DATE,
NoteColumns.SNIPPET,
NoteColumns.TYPE
};
private static final int NOTE_COLUMN_ID = 0;// ID 列索引
private static final int NOTE_COLUMN_MODIFIED_DATE = 1;// 修改日期列索引
private static final int NOTE_COLUMN_SNIPPET = 2;// 碎片列索引
private static final String[] DATA_PROJECTION = {// 数据投影数组
DataColumns.CONTENT,// 内容
DataColumns.MIME_TYPE,// MIME 类型
DataColumns.DATA1,// 数据 1
DataColumns.DATA2,// 数据 2
DataColumns.DATA3,// 数据 3
DataColumns.DATA4,// 数据 4
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;// 定义数据列的常量
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;
private final String [] TEXT_FORMAT;
private static final int FORMAT_FOLDER_NAME = 0;// 定义文本格式的常量
private static final int FORMAT_FOLDER_NAME = 0;
private static final int FORMAT_NOTE_DATE = 1;
private static final int FORMAT_NOTE_CONTENT = 2;
private Context mContext;// 上下文和文件路径相关变量
private Context mContext;
private String mFileName;
private String mFileDirectory;
public TextExport(Context context) {// 构造函数
public TextExport(Context context) {
TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
mContext = context;
mFileName = "";
mFileName = ""; //为什么为空?
mFileDirectory = "";
}
private String getFormat(int id) {
private String getFormat(int id) { //获取文本的组成部分
return TEXT_FORMAT[id];
}// 获取指定格式的文本
}
/**
* Export the folder identified by folder id to text
*/
private void exportFolderToText(String folderId, PrintStream ps) {// 将文件夹导出为文本
// Query notes belong to this folder
private void exportFolderToText(String folderId, PrintStream ps) {
// Query notes belong to this folder 通过查询parent id是文件夹id的note来选出制定ID文件夹下的Note
Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
folderId
}, null); // 查询属于该文件夹的便签
if (notesCursor != null) {
folderId
}, null);
if (notesCursor != null) {
if (notesCursor.moveToFirst()) {
do {
// Print note's last modified date// 打印便签的最后修改日期
// Print note's last modified date ps里面保存有这份note的日期
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// 查询属于该便签的数据
// Query data belong to this note
String noteId = notesCursor.getString(NOTE_COLUMN_ID);
exportNoteToText(noteId, ps);
exportNoteToText(noteId, ps); //将文件导出到text
} while (notesCursor.moveToNext());
}
notesCursor.close();
}
}
/**
* Export note identified by id to a print stream
*/
private void exportNoteToText(String noteId, PrintStream ps) {// 将便签导出为文本
private void exportNoteToText(String noteId, PrintStream ps) {
Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
noteId
noteId
}, null);
if (dataCursor != null) {
if (dataCursor != null) { //利用光标来扫描内容，区别为callnote和note两种，靠ps.printline输出
if (dataCursor.moveToFirst()) {
do {
String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
if (DataConstants.CALL_NOTE.equals(mimeType)) {
// Print phone number// 打印电话号码
// Print phone number
String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
String location = dataCursor.getString(DATA_COLUMN_CONTENT);
if (!TextUtils.isEmpty(phoneNumber)) {
if (!TextUtils.isEmpty(phoneNumber)) { //判断是否为空字符
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
phoneNumber));
}
// Print call date// 打印通话日期
// Print call date
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
.format(mContext.getString(R.string.format_datetime_mdhm),
callDate)));
// Print call attachment location// 打印通话附件位置
// Print call attachment location
if (!TextUtils.isEmpty(location)) {
ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
location));
@ -205,7 +189,7 @@ public class BackupUtils { // 备份工具类定义开始
}
dataCursor.close();
}
// print a line separator between note// 在便签之间加上一行分隔符
// print a line separator between note
try {
ps.write(new byte[] {
Character.LINE_SEPARATOR, Character.LETTER_NUMBER
@ -214,33 +198,33 @@ public class BackupUtils { // 备份工具类定义开始
Log.e(TAG, e.toString());
}
}
/**
* Note will be exported as text which is user readable
*/
public int exportToText() {// 检查外部存储是否可用
public int exportToText() { //总函数，调用上面的exportFolder和exportNote
if (!externalStorageAvailable()) {
Log.d(TAG, "Media was not mounted");
return STATE_SD_CARD_UNMOUONTED;
}
// 获取导出文本的打印流
PrintStream ps = getExportToTextPrintStream();
if (ps == null) {
Log.e(TAG, "get print stream error");
return STATE_SYSTEM_ERROR;
}
// First export folder and its notes// 首先导出文件夹及其笔记
// First export folder and its notes 导出文件夹，就是导出里面包含的便签
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 打印文件夹名称
// 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);
@ -256,14 +240,14 @@ public class BackupUtils { // 备份工具类定义开始
}
folderCursor.close();
}
// Export notes in root's folder// 导出根文件夹中的笔记
// Export notes in root's folder 将根目录里的便签导出（由于不属于任何文件夹，因此无法通过文件夹导出来实现这一部分便签的导出）
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 {
@ -278,14 +262,14 @@ public class BackupUtils { // 备份工具类定义开始
noteCursor.close();
}
ps.close();
return STATE_SUCCESS;
}
/**
* Get a print stream pointed to the file {@generateExportedTextFile}
*/
private PrintStream getExportToTextPrintStream() {
private PrintStream getExportToTextPrintStream() {
File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
R.string.file_name_txt_format);
if (file == null) {
@ -297,7 +281,7 @@ public class BackupUtils { // 备份工具类定义开始
PrintStream ps = null;
try {
FileOutputStream fos = new FileOutputStream(file);
ps = new PrintStream(fos);
ps = new PrintStream(fos); //将ps输出流输出到特定的文件，目的就是导出到文件，而不是直接输出
} catch (FileNotFoundException e) {
e.printStackTrace();
return null;
@ -308,22 +292,22 @@ public class BackupUtils { // 备份工具类定义开始
return ps;
}
}
/**
* 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(Environment.getExternalStorageDirectory()); //外部（SD卡）的存储路径
sb.append(context.getString(filePathResId)); //文件的存储路径
File filedir = new File(sb.toString()); //filedir应该就是用来存储路径信息
sb.append(context.getString(
fileNameFormatResId,
DateFormat.format(context.getString(R.string.format_date_ymd),
System.currentTimeMillis())));
File file = new File(sb.toString());
try {
try { //如果这些文件不存在，则新建
if (!filedir.exists()) {
filedir.mkdir();
}
@ -336,9 +320,8 @@ public class BackupUtils { // 备份工具类定义开始
} catch (IOException e) {
e.printStackTrace();
}
// try catch 异常处理
return null;
}
}

216
src/Notes-master/app/src/main/java/net/micode/notes/tool/DataUtils.java
Unescape View File

@ -15,150 +15,132 @@
*/
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 {// 定义日志标签
public class DataUtils {
public static final String TAG = "DataUtils";
public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {// 批量删除笔记的方法
public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) { //直接删除多个笔记
if (ids == null) {
Log.d(TAG, "the ids is null");// 记录日志，ids 为空
Log.d(TAG, "the ids is null");
return true;
}
if (ids.size() == 0) {
Log.d(TAG, "no id is in the hashset");// 记录日志，ids 集合中没有 ID
Log.d(TAG, "no id is in the hashset");
return true;
}
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();// 创建操作列表
for (long id : ids) {// 遍历需要删除的 ID，并创建对应的删除操作
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>(); //提供一个任务列表
for (long id : ids) {
if(id == Notes.ID_ROOT_FOLDER) {
Log.e(TAG, "Don't delete system folder root");
continue;// 如果是系统文件夹的 ID，则跳过不执行删除操作
}
continue;
} //如果发现是根文件夹，则不删除
ContentProviderOperation.Builder builder = ContentProviderOperation
.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));// 创建删除操作
operationList.add(builder.build());// 将操作添加到操作列表
.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); //用newDelete实现删除功能
operationList.add(builder.build()); //
}
try {
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);// 应用批量操作
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);//主机名（或叫Authority）用于唯一标识这个ContentProvider，外部调用者可以根据这个标识来找到它。
//数据库事务，数据库事务是由一组数据库操作序列组成，事务作为一个整体被执行
if (results == null || results.length == 0 || results[0] == null) {
Log.d(TAG, "delete notes failed, ids:" + ids.toString());// 记录日志，删除失败
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()));// 记录远程异常日志
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()));// 记录操作异常日志
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
}
return false;
}
public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {// 移动笔记到文件夹的方法
ContentValues values = new ContentValues();// 创建内容值对象
values.put(NoteColumns.PARENT_ID, desFolderId);// 设置父文件夹 ID
values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);// 设置原始父文件夹 ID
values.put(NoteColumns.LOCAL_MODIFIED, 1);// 设置本地修改标志
resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);// 执行更新操作
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); //对需要移动的便签进行数据更新，然后用update实现
}
public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,// 批量移动笔记到文件夹的方法
long folderId) {
public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
long folderId) {
if (ids == null) {
Log.d(TAG, "the ids is null");// 记录日志，ids 为空
Log.d(TAG, "the ids is null");
return true;
}
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();// 遍历需要移动的笔记 ID，并创建对应的更新操作
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
for (long id : ids) {
ContentProviderOperation.Builder builder = ContentProviderOperation
.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));// 创建更新操作
builder.withValue(NoteColumns.PARENT_ID, folderId);// 设置父文件夹 ID
builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);// 设置本地修改标志
operationList.add(builder.build());// 将操作添加到操作列表
}
.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); //通过withAppendedId方法，为该Uri加上ID
builder.withValue(NoteColumns.PARENT_ID, folderId);
builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
operationList.add(builder.build());
}//将ids里包含的每一列的数据逐次加入到operationList中，等待最后的批量处理
try {
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);// 应用批量操作
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); //applyBatch一次性处理一个操作列表
if (results == null || results.length == 0 || results[0] == null) {
Log.d(TAG, "delete notes failed, ids:" + ids.toString());// 记录日志，删除失败
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()));// 记录远程异常日志
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()));// 记录操作异常日志
Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
}
return false;
}
/**
* Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
*/
public static int getUserFolderCount(ContentResolver resolver) {// 获取用户文件夹数量（排除系统文件夹）
public static int getUserFolderCount(ContentResolver resolver) {
Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { "COUNT(*)" },// 查询结果为数量
new String[] { "COUNT(*)" },
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
null);
null); //筛选条件：源文件不为trash folder
int count = 0;
if(cursor != null) {
if(cursor.moveToFirst()) {
try {
count = cursor.getInt(0);// 获取数量
count = cursor.getInt(0);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "get folder count failed:" + e.toString());// 记录日志，获取数量失败
Log.e(TAG, "get folder count failed:" + e.toString());
} finally {
cursor.close();// 关闭游标
cursor.close();
}
}
}
return count;
}
public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {// 查询指定ID的笔记，根据类型和父ID条件进行筛选
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
}
public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), //通过withAppendedId方法，为该Uri加上ID
null,
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,// 传入需要查找的类型
new String [] {String.valueOf(type)},
null);
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
new String [] {String.valueOf(type)},
null); //查询条件：type符合，且不属于垃圾文件夹
boolean exist = false;
if (cursor != null) {// 判断是否存在记录
if (cursor.getCount() > 0) {
if (cursor != null) {
if (cursor.getCount() > 0) {//用getcount函数判断cursor是否为空
exist = true;
}
cursor.close();
}
return exist;
}
public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),// 查询指定ID的笔记
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null, null, null, null);
boolean exist = false;
if (cursor != null) {// 判断是否存在记录
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
@ -166,13 +148,13 @@ public class DataUtils {// 定义日志标签
}
return exist;
}
public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {// 查询指定ID的数据
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) {// 判断是否存在记录
if (cursor != null) {
if (cursor.getCount() > 0) {
exist = true;
}
@ -180,15 +162,16 @@ public class DataUtils {// 定义日志标签
}
return exist;
}
public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {// 查询非回收站中特定名称的文件夹笔记
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 + "=?",// 传入需要查找的名称
" AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
" AND " + NoteColumns.SNIPPET + "=?",
new String[] { name }, null);
//通过名字查询文件是否存在
boolean exist = false;
if(cursor != null) {// 判断是否存在记录
if(cursor != null) {
if(cursor.getCount() > 0) {
exist = true;
}
@ -196,14 +179,14 @@ public class DataUtils {// 定义日志标签
}
return exist;
}
public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {// 获取文件夹笔记的小部件数据
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 + "=?",// 传入文件夹ID
NoteColumns.PARENT_ID + "=?",
new String[] { String.valueOf(folderId) },
null);
null); //查询条件：父ID是传入的folderId;
HashSet<AppWidgetAttribute> set = null;
if (c != null) {
if (c.moveToFirst()) {
@ -211,28 +194,28 @@ public class DataUtils {// 定义日志标签
do {
try {
AppWidgetAttribute widget = new AppWidgetAttribute();
widget.widgetId = c.getInt(0);
widget.widgetType = c.getInt(1);
widget.widgetId = c.getInt(0); //0对应的NoteColumns.WIDGET_ID
widget.widgetType = c.getInt(1); //1对应的NoteColumns.WIDGET_TYPE
set.add(widget);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, e.toString());
}
} while (c.moveToNext());
} while (c.moveToNext()); //查询下一条
}
c.close();
}
return set;
}
public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {// 通过笔记ID获取电话号码
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 + "=?",// 传入笔记ID和MIME类型
CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
null);
if (cursor != null && cursor.moveToFirst()) {
try {// 返回电话号码
try {
return cursor.getString(0);
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "Get call number fails " + e.toString());
@ -242,19 +225,20 @@ public class DataUtils {// 定义日志标签
}
return "";
}
public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {// 通过电话号码和通话日期获取笔记ID
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 + ",?)",// 传入通话日期、MIME类型和电话号码
+ CallNote.PHONE_NUMBER + ",?)",
new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
null);
//通过数据库操作，查询条件是（callDate和phoneNumber匹配传入参数的值）
if (cursor != null) {
if (cursor.moveToFirst()) {
try {// 返回笔记ID
return cursor.getLong(0);
try {
return cursor.getLong(0); //0对应的CallNote.NOTE_ID
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, "Get call note id fails " + e.toString());
}
@ -263,14 +247,14 @@ public class DataUtils {// 定义日志标签
}
return 0;
}
public static String getSnippetById(ContentResolver resolver, long noteId) {// 通过笔记ID获取摘要内容
public static String getSnippetById(ContentResolver resolver, long noteId) {
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
new String [] { NoteColumns.SNIPPET },
NoteColumns.ID + "=?",// 传入笔记ID
NoteColumns.ID + "=?",
new String [] { String.valueOf(noteId)},
null);
null);//查询条件：noteId
if (cursor != null) {
String snippet = "";
if (cursor.moveToFirst()) {
@ -281,8 +265,7 @@ public class DataUtils {// 定义日志标签
}
throw new IllegalArgumentException("Note is not found with id: " + noteId);
}
public static String getFormattedSnippet(String snippet) {// 对摘要内容进行格式化处理
public static String getFormattedSnippet(String snippet) { //对字符串进行格式处理，将字符串两头的空格去掉，同时将换行符去掉
if (snippet != null) {
snippet = snippet.trim();
int index = snippet.indexOf('\n');
@ -292,4 +275,5 @@ public class DataUtils {// 定义日志标签
}
return snippet;
}
}
}

102
src/Notes-master/app/src/main/java/net/micode/notes/tool/GTaskStringUtils.java
Unescape View File

@ -14,100 +14,102 @@
* limitations under the License.
*/
//简介：定义了很多的静态字符串，目的就是为了提供jsonObject中相应字符串的"key"。把这些静态的定义单独写到了一个类里面，这是非常好的编程规范
package net.micode.notes.tool;
public class GTaskStringUtils {
//这个类就是定义了一堆static string，实际就是为jsonObject提供Key，把这些定义全部写到一个类里，方便查看管理，是一个非常好的编程习惯
public class GTaskStringUtils {
public final static String GTASK_JSON_ACTION_ID = "action_id";
public final static String GTASK_JSON_ACTION_LIST = "action_list";
public final static String GTASK_JSON_ACTION_TYPE = "action_type";
public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create";
public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all";
public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move";
public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update";
public final static String GTASK_JSON_CREATOR_ID = "creator_id";
public final static String GTASK_JSON_CHILD_ENTITY = "child_entity";
public final static String GTASK_JSON_CLIENT_VERSION = "client_version";
public final static String GTASK_JSON_COMPLETED = "completed";
public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id";
public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id";
public final static String GTASK_JSON_DELETED = "deleted";
public final static String GTASK_JSON_DEST_LIST = "dest_list";
public final static String GTASK_JSON_DEST_PARENT = "dest_parent";
public final static String GTASK_JSON_DEST_PARENT_TYPE = "dest_parent_type";
public final static String GTASK_JSON_ENTITY_DELTA = "entity_delta";
public final static String GTASK_JSON_ENTITY_TYPE = "entity_type";
public final static String GTASK_JSON_GET_DELETED = "get_deleted";
public final static String GTASK_JSON_ID = "id";
public final static String GTASK_JSON_INDEX = "index";
public final static String GTASK_JSON_LAST_MODIFIED = "last_modified";
public final static String GTASK_JSON_LATEST_SYNC_POINT = "latest_sync_point";
public final static String GTASK_JSON_LIST_ID = "list_id";
public final static String GTASK_JSON_LISTS = "lists";
public final static String GTASK_JSON_NAME = "name";
public final static String GTASK_JSON_NEW_ID = "new_id";
public final static String GTASK_JSON_NOTES = "notes";
public final static String GTASK_JSON_PARENT_ID = "parent_id";
public final static String GTASK_JSON_PRIOR_SIBLING_ID = "prior_sibling_id";
public final static String GTASK_JSON_RESULTS = "results";
public final static String GTASK_JSON_SOURCE_LIST = "source_list";
public final static String GTASK_JSON_TASKS = "tasks";
public final static String GTASK_JSON_TYPE = "type";
public final static String GTASK_JSON_TYPE_GROUP = "GROUP";
public final static String GTASK_JSON_TYPE_TASK = "TASK";
public final static String GTASK_JSON_USER = "user";
public final static String MIUI_FOLDER_PREFFIX = "[MIUI_Notes]";
public final static String FOLDER_DEFAULT = "Default";
public final static String FOLDER_CALL_NOTE = "Call_Note";
public final static String FOLDER_META = "METADATA";
public final static String META_HEAD_GTASK_ID = "meta_gid";
public final static String META_HEAD_NOTE = "meta_note";
public final static String META_HEAD_DATA = "meta_data";
public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE";
}
}

167
src/Notes-master/app/src/main/java/net/micode/notes/tool/ResourceParser.java
Unescape View File

@ -15,58 +15,66 @@
*/
package net.micode.notes.tool;
import android.content.Context;
import android.preference.PreferenceManager;
import net.micode.notes.R;
import net.micode.notes.ui.NotesPreferenceActivity;
/*简介：字面意义是资源分析器，实际上就是获取资源并且在程序中使用，比如颜色图片等
* 实现方法：主要利用R.java这个类，其中包括
* R.id 组件资源引用
* R.drawable 图片资源 （被使用）
* R.layout 布局资源
* R.menu 菜单资源
* R.String 文字资源
* R.style 主题资源 （被使用）
* 在按顺序设置好相应的id后，就可以编写简单的getXXX函数获取需要的资源
*
* 特殊的变量 ：
* @BG_DEFAULT_COLOR 默认背景颜色（黄）
* BG_DEFAULT_FONT_SIZE 默认文本大小（中）
*/
public class ResourceParser {
public static final int YELLOW = 0;
public static final int BLUE = 1;
public static final int WHITE = 2;
public static final int GREEN = 3;
public static final int RED = 4;
public static final int BG_DEFAULT_COLOR = YELLOW;
public static final int TEXT_SMALL = 0;
public static final int TEXT_MEDIUM = 1;
public static final int TEXT_LARGE = 2;
public static final int TEXT_SUPER = 3;
public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;
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
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
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];
}
public static int getNoteTitleBgResource(int id) {
return BG_EDIT_TITLE_RESOURCES[id];
}
}
public static int getDefaultBgId(Context context) {
//直接获取默认的背景颜色。看不太懂，这个PREFERENCE_SET_BG_COLOR_KEY是个final string,也就是说getBoolean肯定执行else，为什么要这么写
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);
@ -74,95 +82,96 @@ public class ResourceParser {
return BG_DEFAULT_COLOR;
}
}
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
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
};
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
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
};
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,
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,
};
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
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
};
public static int getNoteBgFirstRes(int id) {
return BG_FIRST_RESOURCES[id];
}
public static int getNoteBgLastRes(int id) {
return BG_LAST_RESOURCES[id];
}
public static int getNoteBgSingleRes(int id) {
return BG_SINGLE_RESOURCES[id];
}
public static int getNoteBgNormalRes(int id) {
return BG_NORMAL_RESOURCES[id];
}
public static int getFolderBgRes() {
return R.drawable.list_folder;
}
}
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,
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
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
};
public static int getWidget4xBgResource(int id) {
return 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
R.style.TextAppearanceNormal,
R.style.TextAppearanceMedium,
R.style.TextAppearanceLarge,
R.style.TextAppearanceSuper
};
//这里有一个容错的函数，防止输入的id大于资源总量，若如此，则自动返回默认的设置结果
public static int getTexAppearanceResource(int id) {
/**
* HACKME: Fix bug of store the resource id in shared preference.
@ -174,9 +183,9 @@ public class ResourceParser {
}
return TEXTAPPEARANCE_RESOURCES[id];
}
public static int getResourcesSize() {
return TEXTAPPEARANCE_RESOURCES.length;
}
}
}
}
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