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Signed-off-by: “zsy” <651952673@qq.com> 12-21

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pull/36/head
“xxx” 2 years ago
parent e279373afb
commit 00cbc30449
6 changed files with 312 additions and 200 deletions
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84
src/Notes-master/src/net/micode/notes/model/Note.java
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@ -13,19 +13,19 @@
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
* limitations under the License. * limitations under the License.
*/ */
//单个便签项，提供了一个笔记模块的功能。包括管理和操作笔记的数据、插入、更新和查询笔记数据，并将数据存储到ContentResolver中
package net.micode.notes.model; package net.micode.notes.model;
import android.content.ContentProviderOperation; import android.content.ContentProviderOperation;//用于描述对内容提供者的单个操作，例如插入、更新或删除数据。
import android.content.ContentProviderResult; import android.content.ContentProviderResult;// 用于存储一组内容提供者操作的结果。
import android.content.ContentUris; import android.content.ContentUris;//包含用于处理内容URI的实用方法，例如从URI中提取ID等。
import android.content.ContentValues; import android.content.ContentValues;// 用于存储键值对形式的数据，通常用于向内容提供者插入新数据或更新现有数据。
import android.content.Context; import android.content.Context;//用于访问应用程序全局的上下文信息，例如应用程序资源和类加载器等。
import android.content.OperationApplicationException; import android.content.OperationApplicationException;//当应用多个操作到内容提供者时，可能会抛出此异常，表示其中一个操作失败。
import android.net.Uri; import android.net.Uri;//代表一个统一资源标识符，用于定位数据的位置，常用于访问内容提供者中的数据。
import android.os.RemoteException; import android.os.RemoteException;//可能会在跨进程通信时抛出，表示远程过程调用发生错误。
import android.util.Log; import android.util.Log;//用于在Android系统中记录日志信息，帮助开发者调试应用程序。
//上面为标准库，下面为在notes.data包里的用法
import net.micode.notes.data.Notes; import net.micode.notes.data.Notes;//设置安卓应用程序中笔记和文件夹的一些基本参数和属性
import net.micode.notes.data.Notes.CallNote; import net.micode.notes.data.Notes.CallNote;
import net.micode.notes.data.Notes.DataColumns; import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.data.Notes.NoteColumns;
@ -35,8 +35,8 @@ import java.util.ArrayList;
public class Note { public class Note {
private ContentValues mNoteDiffValues; private ContentValues mNoteDiffValues;//
private NoteData mNoteData; private NoteData mNoteData;//note数据
private static final String TAG = "Note"; private static final String TAG = "Note";
/** /**
* Create a new note id for adding a new note to databases * Create a new note id for adding a new note to databases
@ -49,8 +49,10 @@ public class Note {
values.put(NoteColumns.MODIFIED_DATE, createdTime); values.put(NoteColumns.MODIFIED_DATE, createdTime);
values.put(NoteColumns.TYPE, Notes.TYPE_NOTE); values.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
values.put(NoteColumns.LOCAL_MODIFIED, 1); 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); 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; long noteId = 0;
try { try {
@ -58,7 +60,7 @@ public class Note {
} catch (NumberFormatException e) { } catch (NumberFormatException e) {
Log.e(TAG, "Get note id error :" + e.toString()); Log.e(TAG, "Get note id error :" + e.toString());
noteId = 0; noteId = 0;
} }//try-catch异常处理
if (noteId == -1) { if (noteId == -1) {
throw new IllegalStateException("Wrong note id:" + noteId); throw new IllegalStateException("Wrong note id:" + noteId);
} }
@ -68,40 +70,41 @@ public class Note {
public Note() { public Note() {
mNoteDiffValues = new ContentValues(); mNoteDiffValues = new ContentValues();
mNoteData = new NoteData(); mNoteData = new NoteData();
} }//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) { public void setNoteValue(String key, String value) {
mNoteDiffValues.put(key, value); mNoteDiffValues.put(key, value);
mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); 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) { public void setTextData(String key, String value) {
mNoteData.setTextData(key, value); mNoteData.setTextData(key, value);
} }
//设置数据库表格的标签文本内容的数据
public void setTextDataId(long id) { public void setTextDataId(long id) {
mNoteData.setTextDataId(id); mNoteData.setTextDataId(id);
} }
//设置文本数据的ID
public long getTextDataId() { public long getTextDataId() {
return mNoteData.mTextDataId; return mNoteData.mTextDataId;
} }
//得到文本数据的ID
public void setCallDataId(long id) { public void setCallDataId(long id) {
mNoteData.setCallDataId(id); mNoteData.setCallDataId(id);
} }
//设置电话号码数据的ID
public void setCallData(String key, String value) { public void setCallData(String key, String value) {
mNoteData.setCallData(key, value); mNoteData.setCallData(key, value);
} }
//得到电话号码数据的ID
public boolean isLocalModified() { public boolean isLocalModified() {
return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified(); return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
} }//判断是否是本地修改
public boolean syncNote(Context context, long noteId) { public boolean syncNote(Context context, long noteId) {
if (noteId <= 0) { if (noteId <= 0) {//id<=0报错
throw new IllegalArgumentException("Wrong note id:" + noteId); throw new IllegalArgumentException("Wrong note id:" + noteId);
} }
@ -128,32 +131,32 @@ public class Note {
} }
return true; return true;
} }//判断是否同步
private class NoteData { 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 long mTextDataId;
private ContentValues mTextDataValues; private ContentValues mTextDataValues;//文本数据
private long mCallDataId; private long mCallDataId;
private ContentValues mCallDataValues; private ContentValues mCallDataValues;//电话号码数据
private static final String TAG = "NoteData"; private static final String TAG = "NoteData";
public NoteData() { public NoteData() {//初始化NoteData
mTextDataValues = new ContentValues(); mTextDataValues = new ContentValues();
mCallDataValues = new ContentValues(); mCallDataValues = new ContentValues();
mTextDataId = 0; mTextDataId = 0;
mCallDataId = 0; mCallDataId = 0;
} }
// 函数实现部分
boolean isLocalModified() { boolean isLocalModified() {
return mTextDataValues.size() > 0 || mCallDataValues.size() > 0; return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
} }//判断是否本地修改，即是否有新电话号码数据或文本数据
void setTextDataId(long id) { void setTextDataId(long id) {
if(id <= 0) { if(id <= 0) {//id<=0报错
throw new IllegalArgumentException("Text data id should larger than 0"); throw new IllegalArgumentException("Text data id should larger than 0");
} }
mTextDataId = id; mTextDataId = id;
@ -178,18 +181,19 @@ public class Note {
mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
} }
//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) { Uri pushIntoContentResolver(Context context, long noteId) {
/** /**
* Check for safety * Check for safety
*/ */
if (noteId <= 0) { if (noteId <= 0) {
throw new IllegalArgumentException("Wrong note id:" + noteId); throw new IllegalArgumentException("Wrong note id:" + noteId);
} }//判断是否合法
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>(); ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
ContentProviderOperation.Builder builder = null; ContentProviderOperation.Builder builder = null;//数据库的操作列表
if(mTextDataValues.size() > 0) { if(mTextDataValues.size() > 0) {//有文本数据
mTextDataValues.put(DataColumns.NOTE_ID, noteId); mTextDataValues.put(DataColumns.NOTE_ID, noteId);
if (mTextDataId == 0) { if (mTextDataId == 0) {
mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE); mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);
@ -209,9 +213,9 @@ public class Note {
operationList.add(builder.build()); operationList.add(builder.build());
} }
mTextDataValues.clear(); mTextDataValues.clear();
} }//把文本数据存入DataColumns
if(mCallDataValues.size() > 0) { if(mCallDataValues.size() > 0) {//有电话号码
mCallDataValues.put(DataColumns.NOTE_ID, noteId); mCallDataValues.put(DataColumns.NOTE_ID, noteId);
if (mCallDataId == 0) { if (mCallDataId == 0) {
mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE); mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE);
@ -231,9 +235,9 @@ public class Note {
operationList.add(builder.build()); operationList.add(builder.build());
} }
mCallDataValues.clear(); mCallDataValues.clear();
} }//把电话号码数据存入DataColumns
if (operationList.size() > 0) { if (operationList.size() > 0) {//总长大于0
try { try {
ContentProviderResult[] results = context.getContentResolver().applyBatch( ContentProviderResult[] results = context.getContentResolver().applyBatch(
Notes.AUTHORITY, operationList); Notes.AUTHORITY, operationList);
@ -248,6 +252,6 @@ public class Note {
} }
} }
return null; return null;
} }//存储过程中的异常处理
} }
} }

123
src/Notes-master/src/net/micode/notes/model/WorkingNote.java
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@ -16,12 +16,12 @@
package net.micode.notes.model; package net.micode.notes.model;
import android.appwidget.AppWidgetManager; import android.appwidget.AppWidgetManager;//用于管理Android应用中的小部件。
import android.content.ContentUris; import android.content.ContentUris;//提供了用于处理内容URI的实用方法，用于获取数据的URI。
import android.content.Context; import android.content.Context;//用于访问应用程序的全局信息和资源。
import android.database.Cursor; import android.database.Cursor;//用于在数据库查询结果集中进行遍历和操作。
import android.text.TextUtils; import android.text.TextUtils;//提供了一些处理文本的实用方法，如判断字符串是否为空或空白。
import android.util.Log; import android.util.Log;//用于在调试时输出日志信息。
import net.micode.notes.data.Notes; import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.CallNote; import net.micode.notes.data.Notes.CallNote;
@ -31,7 +31,7 @@ import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.data.Notes.TextNote; import net.micode.notes.data.Notes.TextNote;
import net.micode.notes.tool.ResourceParser.NoteBgResources; import net.micode.notes.tool.ResourceParser.NoteBgResources;
//定义WorkingNote
public class WorkingNote { public class WorkingNote {
// Note for the working note // Note for the working note
private Note mNote; private Note mNote;
@ -41,27 +41,30 @@ public class WorkingNote {
private String mContent; private String mContent;
// Note mode // Note mode
private int mMode; private int mMode;
//模式值，初始化为0
private long mAlertDate; private long mAlertDate;
//警戒值
private long mModifiedDate; private long mModifiedDate;
//修改值
private int mBgColorId; private int mBgColorId;
//颜色
private int mWidgetId; private int mWidgetId;
//宽 ID
private int mWidgetType; private int mWidgetType;
//宽大小
private long mFolderId; private long mFolderId;
//文件夹ID
private Context mContext; private Context mContext;
//内容
private static final String TAG = "WorkingNote"; private static final String TAG = "WorkingNote";
//标签
private boolean mIsDeleted; private boolean mIsDeleted;
//删除时改变
private NoteSettingChangedListener mNoteSettingStatusListener; private NoteSettingChangedListener mNoteSettingStatusListener;
//判断设置是否改变，默认为0
// 声明 DATA_PROJECTION字符串数组
public static final String[] DATA_PROJECTION = new String[] { public static final String[] DATA_PROJECTION = new String[] {
DataColumns.ID, DataColumns.ID,
DataColumns.CONTENT, DataColumns.CONTENT,
@ -72,6 +75,9 @@ public class WorkingNote {
DataColumns.DATA4, DataColumns.DATA4,
}; };
// 声明 NOTE_PROJECTION字符串数组
public static final String[] NOTE_PROJECTION = new String[] { public static final String[] NOTE_PROJECTION = new String[] {
NoteColumns.PARENT_ID, NoteColumns.PARENT_ID,
NoteColumns.ALERTED_DATE, NoteColumns.ALERTED_DATE,
@ -101,6 +107,8 @@ public class WorkingNote {
private static final int NOTE_MODIFIED_DATE_COLUMN = 5; private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
// WorkingNote的构造函数
// New note construct // New note construct
private WorkingNote(Context context, long folderId) { private WorkingNote(Context context, long folderId) {
mContext = context; mContext = context;
@ -124,11 +132,15 @@ public class WorkingNote {
loadNote(); loadNote();
} }
// 加载Note
// 通过数据库调用query函数找到第一个条目
private void loadNote() { private void loadNote() {
Cursor cursor = mContext.getContentResolver().query( Cursor cursor = mContext.getContentResolver().query(
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null, ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
null, null); null, null);
// 若存在，储存相应信息
if (cursor != null) { if (cursor != null) {
if (cursor.moveToFirst()) { if (cursor.moveToFirst()) {
mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN); mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
@ -139,6 +151,7 @@ public class WorkingNote {
mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN); mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
} }
cursor.close(); cursor.close();
// 若不存在，报错
} else { } else {
Log.e(TAG, "No note with id:" + mNoteId); Log.e(TAG, "No note with id:" + mNoteId);
throw new IllegalArgumentException("Unable to find note with id " + mNoteId); throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
@ -146,14 +159,18 @@ public class WorkingNote {
loadNoteData(); loadNoteData();
} }
// 加载NoteData
private void loadNoteData() { private void loadNoteData() {
Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION, Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
DataColumns.NOTE_ID + "=?", new String[] { DataColumns.NOTE_ID + "=?", new String[] {
String.valueOf(mNoteId) String.valueOf(mNoteId)
}, null); }, null);
//根据ID加载note
if (cursor != null) { if (cursor != null) {
// 查到信息不为空
if (cursor.moveToFirst()) { if (cursor.moveToFirst()) {
// 查看第一项是否存在
do { do {
String type = cursor.getString(DATA_MIME_TYPE_COLUMN); String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
if (DataConstants.NOTE.equals(type)) { if (DataConstants.NOTE.equals(type)) {
@ -166,37 +183,45 @@ public class WorkingNote {
Log.d(TAG, "Wrong note type with type:" + type); 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(); cursor.close();
} else { } else {
//没有便签则报错
Log.e(TAG, "No data with id:" + mNoteId); Log.e(TAG, "No data with id:" + mNoteId);
throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId); 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, public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
int widgetType, int defaultBgColorId) { int widgetType, int defaultBgColorId) {
WorkingNote note = new WorkingNote(context, folderId); WorkingNote note = new WorkingNote(context, folderId);
// 设定颜色，widget
note.setBgColorId(defaultBgColorId); note.setBgColorId(defaultBgColorId);
note.setWidgetId(widgetId); note.setWidgetId(widgetId);
note.setWidgetType(widgetType); note.setWidgetType(widgetType);
return note; return note;
} }
//根据id加载note
public static WorkingNote load(Context context, long id) { public static WorkingNote load(Context context, long id) {
return new WorkingNote(context, id, 0); return new WorkingNote(context, id, 0);
} }
//保存Note
public synchronized boolean saveNote() { public synchronized boolean saveNote() {
if (isWorthSaving()) { if (isWorthSaving()) {
//是否值得保存
if (!existInDatabase()) { if (!existInDatabase()) {
//是否存在数据库中
if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) { if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
//ID为0，报错
Log.e(TAG, "Create new note fail with id:" + mNoteId); Log.e(TAG, "Create new note fail with id:" + mNoteId);
return false; return false;
} }
} }
mNote.syncNote(mContext, mNoteId); mNote.syncNote(mContext, mNoteId);//保存
/** /**
* Update widget content if there exist any widget of this note * Update widget content if there exist any widget of this note
@ -204,7 +229,7 @@ public class WorkingNote {
if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mWidgetType != Notes.TYPE_WIDGET_INVALIDE
&& mNoteSettingStatusListener != null) { && mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onWidgetChanged(); mNoteSettingStatusListener.onWidgetChanged();// 状态变为已保存
} }
return true; return true;
} else { } else {
@ -212,11 +237,14 @@ public class WorkingNote {
} }
} }
//判断数据库是否存在该便签
public boolean existInDatabase() { public boolean existInDatabase() {
return mNoteId > 0; return mNoteId > 0;
} }
//是否值得保存
private boolean isWorthSaving() { 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)) if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
|| (existInDatabase() && !mNote.isLocalModified())) { || (existInDatabase() && !mNote.isLocalModified())) {
return false; return false;
@ -225,9 +253,12 @@ public class WorkingNote {
} }
} }
// 设置mNoteSettingStatusListener
public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) { public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
mNoteSettingStatusListener = l; mNoteSettingStatusListener = l;
} }
// 设置AlertDate
// 若 mAlertDate与data不同，则更改mAlertDate并设定NoteValue
public void setAlertDate(long date, boolean set) { public void setAlertDate(long date, boolean set) {
if (date != mAlertDate) { if (date != mAlertDate) {
@ -239,16 +270,20 @@ public class WorkingNote {
} }
} }
// 设定删除标记
public void markDeleted(boolean mark) { public void markDeleted(boolean mark) {
//设定标记
mIsDeleted = mark; mIsDeleted = mark;
if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) { && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onWidgetChanged(); mNoteSettingStatusListener.onWidgetChanged();
// 调用mNoteSettingStatusListener的 onWidgetChanged方法
} }
} }
// 设定背景颜色
public void setBgColorId(int id) { public void setBgColorId(int id) {
if (id != mBgColorId) { if (id != mBgColorId) {//设定条件 id != mBgColorId
mBgColorId = id; mBgColorId = id;
if (mNoteSettingStatusListener != null) { if (mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onBackgroundColorChanged(); mNoteSettingStatusListener.onBackgroundColorChanged();
@ -257,7 +292,10 @@ public class WorkingNote {
} }
} }
// 设定检查列表模式
// 参数：mode
public void setCheckListMode(int mode) { public void setCheckListMode(int mode) {
//设定条件 mMode != mode，才改变
if (mMode != mode) { if (mMode != mode) {
if (mNoteSettingStatusListener != null) { if (mNoteSettingStatusListener != null) {
mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode); mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
@ -266,82 +304,107 @@ public class WorkingNote {
mNote.setTextData(TextNote.MODE, String.valueOf(mMode)); mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
} }
} }
// 设定WidgetType
// 参数：type
public void setWidgetType(int type) { public void setWidgetType(int type) {
if (type != mWidgetType) { if (type != mWidgetType) {//设定条件 type != mWidgetType
mWidgetType = type; mWidgetType = type;
mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType)); mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
// 调用Note的setNoteValue方法更改WidgetType
} }
} }
// 设定WidgetId
// 参数：id
public void setWidgetId(int id) { public void setWidgetId(int id) {
if (id != mWidgetId) { if (id != mWidgetId) {
mWidgetId = id; mWidgetId = id;
mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId)); mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
// 调用Note的setNoteValue方法更改WidgetId
} }
} }
// 设定WorkingText
// 参数：更改的text
public void setWorkingText(String text) { public void setWorkingText(String text) {
if (!TextUtils.equals(mContent, text)) { if (!TextUtils.equals(mContent, text)) {//设定条件 mContent, text内容不同
mContent = text; mContent = text;
mNote.setTextData(DataColumns.CONTENT, mContent); mNote.setTextData(DataColumns.CONTENT, mContent);
// 调用Note的setTextData方法更改WorkingText
} }
} }
// 转变mNote的CallData及CallNote信息
// 参数：String phoneNumber, long callDate
public void convertToCallNote(String phoneNumber, long callDate) { public void convertToCallNote(String phoneNumber, long callDate) {
mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate)); mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate));
mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber); mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber);
mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER)); mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER));
} }
// 判断是否有时钟题型
public boolean hasClockAlert() { public boolean hasClockAlert() {
return (mAlertDate > 0 ? true : false); return (mAlertDate > 0 ? true : false);
} }
// 获取Content
public String getContent() { public String getContent() {
return mContent; return mContent;
} }
// 获取AlertDate
public long getAlertDate() { public long getAlertDate() {
return mAlertDate; return mAlertDate;
} }
// 获取ModifiedDate
public long getModifiedDate() { public long getModifiedDate() {
return mModifiedDate; return mModifiedDate;
} }
// 获取背景颜色来源id
public int getBgColorResId() { public int getBgColorResId() {
return NoteBgResources.getNoteBgResource(mBgColorId); return NoteBgResources.getNoteBgResource(mBgColorId);
} }
// 获取背景颜色id
public int getBgColorId() { public int getBgColorId() {
return mBgColorId; return mBgColorId;
} }
// 获取标题背景颜色id
public int getTitleBgResId() { public int getTitleBgResId() {
return NoteBgResources.getNoteTitleBgResource(mBgColorId); return NoteBgResources.getNoteTitleBgResource(mBgColorId);
} }
// 获取CheckListMode
public int getCheckListMode() { public int getCheckListMode() {
return mMode; return mMode;
} }
// 获取便签id
public long getNoteId() { public long getNoteId() {
return mNoteId; return mNoteId;
} }
// 获取文件夹id
public long getFolderId() { public long getFolderId() {
return mFolderId; return mFolderId;
} }
// 获取WidgetId
public int getWidgetId() { public int getWidgetId() {
return mWidgetId; return mWidgetId;
} }
// 获取WidgetType
public int getWidgetType() { public int getWidgetType() {
return mWidgetType; return mWidgetType;
} }
// 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 { public interface NoteSettingChangedListener {
/** /**
* Called when the background color of current note has just changed * Called when the background color of current note has just changed

72
src/Notes-master/src/net/micode/notes/tool/BackupUtils.java
Unescape View File

@ -16,12 +16,12 @@
package net.micode.notes.tool; package net.micode.notes.tool;
import android.content.Context; import android.content.Context;//导入 Android 应用程序上下文(Context)类。
import android.database.Cursor; import android.database.Cursor;//导入 Android 数据库查询结果集(Cursor)类。
import android.os.Environment; import android.os.Environment;//导入 Android 系统环境(Environment)类。
import android.text.TextUtils; import android.text.TextUtils;//导入 Android 文本工具(TextUtils)类。
import android.text.format.DateFormat; import android.text.format.DateFormat;//导入 Android 日期时间格式化(DateFormat)类。
import android.util.Log; import android.util.Log;//导入 Android 日志(Log)类。
import net.micode.notes.R; import net.micode.notes.R;
import net.micode.notes.data.Notes; import net.micode.notes.data.Notes;
@ -29,13 +29,13 @@ import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.DataConstants; import net.micode.notes.data.Notes.DataConstants;
import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.data.Notes.NoteColumns;
import java.io.File; import java.io.File;//导入 Java 的文件(File)类，用于表示文件和目录的抽象路径名。
import java.io.FileNotFoundException; import java.io.FileNotFoundException;//导入 Java 的文件找不到异常(FileNotFoundException)类，用于处理文件未找到的异常情况。
import java.io.FileOutputStream; import java.io.FileOutputStream;//导入 Java 的文件输出流(FileOutputStream)类，用于将数据写入文件。
import java.io.IOException; import java.io.IOException;//导入 Java 的输入输出异常(IOException)类，用于处理输入输出操作中可能发生的异常情况。
import java.io.PrintStream; import java.io.PrintStream;//导入 Java 的打印流(PrintStream)类，用于向标准输出流打印输出。
//备份的处理
public class BackupUtils { public class BackupUtils {
private static final String TAG = "BackupUtils"; private static final String TAG = "BackupUtils";
// Singleton stuff // Singleton stuff
@ -43,6 +43,7 @@ public class BackupUtils {
public static synchronized BackupUtils getInstance(Context context) { public static synchronized BackupUtils getInstance(Context context) {
if (sInstance == null) { if (sInstance == null) {
//如果当前备份不存在，则新声明一个
sInstance = new BackupUtils(context); sInstance = new BackupUtils(context);
} }
return sInstance; return sInstance;
@ -52,27 +53,30 @@ public class BackupUtils {
* Following states are signs to represents backup or restore * Following states are signs to represents backup or restore
* status * status
*/ */
// Currently, the sdcard is not mounted // Currently, the sdcard is not mounted SD卡没有被装入手机
public static final int STATE_SD_CARD_UNMOUONTED = 0; public static final int STATE_SD_CARD_UNMOUONTED = 0;
// The backup file not exist // The backup file not exist 备份文件夹不存在
public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
// The data is not well formated, may be changed by other programs // 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; public static final int STATE_DATA_DESTROIED = 2;
// Some run-time exception which causes restore or backup fails // Some run-time exception which causes restore or backup fails超时异常
public static final int STATE_SYSTEM_ERROR = 3; public static final int STATE_SYSTEM_ERROR = 3;
// Backup or restore success // Backup or restore success成功存储
public static final int STATE_SUCCESS = 4; public static final int STATE_SUCCESS = 4;
private TextExport mTextExport; private TextExport mTextExport;
//初始化函数
private BackupUtils(Context context) { private BackupUtils(Context context) {
mTextExport = new TextExport(context); mTextExport = new TextExport(context);
} }
private static boolean externalStorageAvailable() { //外部存储功能是否可用
private static boolean externalStorageAvailable() {//外部存储功能是否可用
return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
} }
//
public int exportToText() { public int exportToText() {
return mTextExport.exportToText(); return mTextExport.exportToText();
} }
@ -125,6 +129,7 @@ public class BackupUtils {
private String mFileName; private String mFileName;
private String mFileDirectory; private String mFileDirectory;
//导出文本功能，将其作为字符串形式导出
public TextExport(Context context) { public TextExport(Context context) {
TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
mContext = context; mContext = context;
@ -140,22 +145,22 @@ public class BackupUtils {
* Export the folder identified by folder id to text * Export the folder identified by folder id to text
*/ */
private void exportFolderToText(String folderId, PrintStream ps) { private void exportFolderToText(String folderId, PrintStream ps) {
// Query notes belong to this folder // 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, Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
folderId folderId
}, null); }, null);
if (notesCursor != null) { if (notesCursor != null) {//有内容
if (notesCursor.moveToFirst()) { if (notesCursor.moveToFirst()) {
do { do {
// Print note's last modified date // 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( ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
mContext.getString(R.string.format_datetime_mdhm), mContext.getString(R.string.format_datetime_mdhm),
notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
// Query data belong to this note // Query data belong to this note
String noteId = notesCursor.getString(NOTE_COLUMN_ID); String noteId = notesCursor.getString(NOTE_COLUMN_ID);
exportNoteToText(noteId, ps); exportNoteToText(noteId, ps); //将文件导出到text
} while (notesCursor.moveToNext()); } while (notesCursor.moveToNext());
} }
notesCursor.close(); notesCursor.close();
@ -171,17 +176,17 @@ public class BackupUtils {
noteId noteId
}, null); }, 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()) { if (dataCursor.moveToFirst()) {
do { do {
String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
if (DataConstants.CALL_NOTE.equals(mimeType)) { if (DataConstants.CALL_NOTE.equals(mimeType)) {//是否类型相同
// Print phone number // Print phone number
String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
String location = dataCursor.getString(DATA_COLUMN_CONTENT); 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), ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
phoneNumber)); phoneNumber));
} }
@ -218,7 +223,7 @@ public class BackupUtils {
/** /**
* Note will be exported as text which is user readable * Note will be exported as text which is user readable
*/ */
public int exportToText() { public int exportToText() {//总函数，调用上面的exportFolder和exportNote
if (!externalStorageAvailable()) { if (!externalStorageAvailable()) {
Log.d(TAG, "Media was not mounted"); Log.d(TAG, "Media was not mounted");
return STATE_SD_CARD_UNMOUONTED; return STATE_SD_CARD_UNMOUONTED;
@ -229,7 +234,7 @@ public class BackupUtils {
Log.e(TAG, "get print stream error"); Log.e(TAG, "get print stream error");
return STATE_SYSTEM_ERROR; return STATE_SYSTEM_ERROR;
} }
// First export folder and its notes // 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( Cursor folderCursor = mContext.getContentResolver().query(
Notes.CONTENT_NOTE_URI, Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NOTE_PROJECTION,
@ -257,7 +262,7 @@ public class BackupUtils {
folderCursor.close(); folderCursor.close();
} }
// Export notes in root's folder // 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( Cursor noteCursor = mContext.getContentResolver().query(
Notes.CONTENT_NOTE_URI, Notes.CONTENT_NOTE_URI,
NOTE_PROJECTION, NOTE_PROJECTION,
@ -287,7 +292,7 @@ public class BackupUtils {
*/ */
private PrintStream getExportToTextPrintStream() { private PrintStream getExportToTextPrintStream() {
File file = generateFileMountedOnSDcard(mContext, R.string.file_path, File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
R.string.file_name_txt_format); R.string.file_name_txt_format);//导出后的文件路径
if (file == null) { if (file == null) {
Log.e(TAG, "create file to exported failed"); Log.e(TAG, "create file to exported failed");
return null; return null;
@ -314,16 +319,16 @@ public class BackupUtils {
*/ */
private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
StringBuilder sb = new StringBuilder(); StringBuilder sb = new StringBuilder();
sb.append(Environment.getExternalStorageDirectory()); sb.append(Environment.getExternalStorageDirectory()); //外部（SD卡）的存储路径
sb.append(context.getString(filePathResId)); sb.append(context.getString(filePathResId));//文件的存储路径
File filedir = new File(sb.toString()); File filedir = new File(sb.toString());//filedir应该就是用来存储路径信息
sb.append(context.getString( sb.append(context.getString(
fileNameFormatResId, fileNameFormatResId,
DateFormat.format(context.getString(R.string.format_date_ymd), DateFormat.format(context.getString(R.string.format_date_ymd),
System.currentTimeMillis()))); System.currentTimeMillis())));
File file = new File(sb.toString()); File file = new File(sb.toString());
try { try { //如果这些文件不存在，则新建
if (!filedir.exists()) { if (!filedir.exists()) {
filedir.mkdir(); filedir.mkdir();
} }
@ -337,6 +342,7 @@ public class BackupUtils {
e.printStackTrace(); e.printStackTrace();
} }
// try catch 异常处理
return null; return null;
} }
} }

97
src/Notes-master/src/net/micode/notes/tool/DataUtils.java
Unescape View File

@ -16,15 +16,15 @@
package net.micode.notes.tool; package net.micode.notes.tool;
import android.content.ContentProviderOperation; import android.content.ContentProviderOperation;//导入 Android 内容提供者操作(ContentProviderOperation)类，用于操作内容提供者中的数据。
import android.content.ContentProviderResult; import android.content.ContentProviderResult;//导入 Android 内容提供者结果(ContentProviderResult)类，用于存储内容提供者操作的结果。
import android.content.ContentResolver; import android.content.ContentResolver;//导入 Android 内容解析器(ContentResolver)类，用于访问应用程序中的各种内容提供者。
import android.content.ContentUris; import android.content.ContentUris;//导入 Android 内容 URI(ContentUris)类，用于处理内容提供者的 URI。
import android.content.ContentValues; import android.content.ContentValues;//导入 Android 内容值(ContentValues)类，用于封装要插入或更新到内容提供者中的数据。
import android.content.OperationApplicationException; import android.content.OperationApplicationException;//导入 Android 操作应用程序异常(OperationApplicationException)类，用于处理内容提供者操作时可能出现的异常情况。
import android.database.Cursor; import android.database.Cursor;//导入 Android 数据库查询结果集(Cursor)类，用于表示数据库查询结果集。
import android.os.RemoteException; import android.os.RemoteException;//导入 Android 远程操作异常(RemoteException)类，用于处理远程操作时可能出现的异常情况。
import android.util.Log; import android.util.Log;//导入 Android 日志(Log)类，用于记录调试信息。
import net.micode.notes.data.Notes; import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.CallNote; import net.micode.notes.data.Notes.CallNote;
@ -37,6 +37,8 @@ import java.util.HashSet;
public class DataUtils { public class DataUtils {
public static final String TAG = "DataUtils"; public static final String TAG = "DataUtils";
//删除多个note
public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) { public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
if (ids == null) { if (ids == null) {
Log.d(TAG, "the ids is null"); Log.d(TAG, "the ids is null");
@ -47,19 +49,20 @@ public class DataUtils {
return true; return true;
} }
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>(); ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();//提供一个任务列表
for (long id : ids) { for (long id : ids) {
if(id == Notes.ID_ROOT_FOLDER) { if(id == Notes.ID_ROOT_FOLDER) {
Log.e(TAG, "Don't delete system folder root"); Log.e(TAG, "Don't delete system folder root");
continue; continue;
} } //如果发现是根文件夹，则不删除
ContentProviderOperation.Builder builder = ContentProviderOperation ContentProviderOperation.Builder builder = ContentProviderOperation
.newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); //用newDelete实现删除功能
operationList.add(builder.build()); operationList.add(builder.build());
} }
try { try {
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); 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。
if (results == null || results.length == 0 || results[0] == null) { //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) {//若为空则没必要删
Log.d(TAG, "delete notes failed, ids:" + ids.toString()); Log.d(TAG, "delete notes failed, ids:" + ids.toString());
return false; return false;
} }
@ -72,14 +75,16 @@ public class DataUtils {
return false; return false;
} }
//将便签移动至文件夹内
public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
ContentValues values = new ContentValues(); ContentValues values = new ContentValues();
values.put(NoteColumns.PARENT_ID, desFolderId); values.put(NoteColumns.PARENT_ID, desFolderId);
values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
values.put(NoteColumns.LOCAL_MODIFIED, 1); values.put(NoteColumns.LOCAL_MODIFIED, 1);
resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); 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
} }
//批量移动
public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids, public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
long folderId) { long folderId) {
if (ids == null) { if (ids == null) {
@ -90,14 +95,14 @@ public class DataUtils {
ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>(); ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
for (long id : ids) { for (long id : ids) {
ContentProviderOperation.Builder builder = ContentProviderOperation ContentProviderOperation.Builder builder = ContentProviderOperation
.newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); .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.PARENT_ID, folderId);
builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
operationList.add(builder.build()); 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 { try {
ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); 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) { if (results == null || results.length == 0 || results[0] == null) {
Log.d(TAG, "delete notes failed, ids:" + ids.toString()); Log.d(TAG, "delete notes failed, ids:" + ids.toString());
return false; return false;
@ -114,12 +119,14 @@ public class DataUtils {
/** /**
* Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}} * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
*/ */
//获取文件夹的编号
public static int getUserFolderCount(ContentResolver resolver) { public static int getUserFolderCount(ContentResolver resolver) {
Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI, Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { "COUNT(*)" }, new String[] { "COUNT(*)" },
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)}, 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; int count = 0;
if(cursor != null) { if(cursor != null) {
@ -136,23 +143,24 @@ public class DataUtils {
return count; return count;
} }
//查看是否有指定ID的note可见
public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null, null,
NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
new String [] {String.valueOf(type)}, new String [] {String.valueOf(type)},
null); null);//查询条件：type符合，且不属于垃圾文件夹
boolean exist = false; boolean exist = false;
if (cursor != null) { if (cursor != null) {
if (cursor.getCount() > 0) { if (cursor.getCount() > 0) {//用getcount函数判断cursor是否为空
exist = true; exist = true;
} }
cursor.close(); cursor.close();
} }
return exist; return exist;
} }
///判定是否有指定note，即不需条件条件：type符合，且不属于垃圾文件夹
public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
null, null, null, null); null, null, null, null);
@ -166,7 +174,7 @@ public class DataUtils {
} }
return exist; return exist;
} }
//判定是否有指定的data
public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
null, null, null, null); null, null, null, null);
@ -180,13 +188,14 @@ public class DataUtils {
} }
return exist; return exist;
} }
//判定是否有指定的可见folder
public static boolean checkVisibleFolderName(ContentResolver resolver, String name) { public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null, Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
" AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
" AND " + NoteColumns.SNIPPET + "=?", " AND " + NoteColumns.SNIPPET + "=?",
new String[] { name }, null); new String[] { name }, null);
//通过名字查询文件是否存在
boolean exist = false; boolean exist = false;
if(cursor != null) { if(cursor != null) {
if(cursor.getCount() > 0) { if(cursor.getCount() > 0) {
@ -197,12 +206,13 @@ public class DataUtils {
return exist; return exist;
} }
//文件夹工具
public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) { public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
Cursor c = resolver.query(Notes.CONTENT_NOTE_URI, Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE }, new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
NoteColumns.PARENT_ID + "=?", NoteColumns.PARENT_ID + "=?",
new String[] { String.valueOf(folderId) }, new String[] { String.valueOf(folderId) },
null); null);//查询条件：父ID是传入的folderId;
HashSet<AppWidgetAttribute> set = null; HashSet<AppWidgetAttribute> set = null;
if (c != null) { if (c != null) {
@ -211,8 +221,8 @@ public class DataUtils {
do { do {
try { try {
AppWidgetAttribute widget = new AppWidgetAttribute(); AppWidgetAttribute widget = new AppWidgetAttribute();
widget.widgetId = c.getInt(0); widget.widgetId = c.getInt(0);//0对应的NoteColumns.WIDGET_ID
widget.widgetType = c.getInt(1); widget.widgetType = c.getInt(1);//1对应的NoteColumns.WIDGET_TYPE
set.add(widget); set.add(widget);
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
Log.e(TAG, e.toString()); Log.e(TAG, e.toString());
@ -224,20 +234,21 @@ public class DataUtils {
return set; return set;
} }
//根据给定的便签ID(noteId)获取该便签中的电话号码(CallNote.PHONE_NUMBER)
public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
new String [] { CallNote.PHONE_NUMBER }, new String [] { CallNote.PHONE_NUMBER },
CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
null); null);//在查询条件中限定了便签ID(NoteId)和便签类型(CallNote.MIME_TYPE)，使用了占位符(?)和参数数组，避免了SQL注入攻击
if (cursor != null && cursor.moveToFirst()) { if (cursor != null && cursor.moveToFirst()) {//如果查询结果非空且有记录，则尝试获取第一条记录的电话号码，并将其返回。
try { try {
return cursor.getString(0); return cursor.getString(0);
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
Log.e(TAG, "Get call number fails " + e.toString()); Log.e(TAG, "Get call number fails " + e.toString());//如果获取电话号码失败，则在日志中打印错误信息，并返回空字符串
} finally { } finally {
cursor.close(); cursor.close();//关闭游标(Cursor)对象
} }
} }
return ""; return "";
@ -249,19 +260,19 @@ public class DataUtils {
CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL(" CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
+ CallNote.PHONE_NUMBER + ",?)", + CallNote.PHONE_NUMBER + ",?)",
new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber }, new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
null); null);//在查询条件中限定了通话日期(CallNote.CALL_DATE)、便签类型(CallNote.MIME_TYPE)以及电话号码(CallNote.PHONE_NUMBER)。//使用了占位符(?)和参数数组来避免SQL注入攻击，并使用PHONE_NUMBERS_EQUAL函数来比较电话号码。
//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 != null) {
if (cursor.moveToFirst()) { if (cursor.moveToFirst()) {
try { try {
return cursor.getLong(0); return cursor.getLong(0);//0对应的CallNote.NOTE_ID
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
Log.e(TAG, "Get call note id fails " + e.toString()); Log.e(TAG, "Get call note id fails " + e.toString());
} }
} }
cursor.close(); cursor.close();
} }
return 0; return 0;//如果查询结果为空，则返回0作为默认值。
} }
public static String getSnippetById(ContentResolver resolver, long noteId) { public static String getSnippetById(ContentResolver resolver, long noteId) {
@ -269,8 +280,8 @@ public class DataUtils {
new String [] { NoteColumns.SNIPPET }, new String [] { NoteColumns.SNIPPET },
NoteColumns.ID + "=?", NoteColumns.ID + "=?",
new String [] { String.valueOf(noteId)}, new String [] { String.valueOf(noteId)},
null); null);//查询条件：noteId
//如果查询结果非空，则尝试获取第一条记录的便签片段，并将其赋值给变量snippet。
if (cursor != null) { if (cursor != null) {
String snippet = ""; String snippet = "";
if (cursor.moveToFirst()) { if (cursor.moveToFirst()) {
@ -279,17 +290,17 @@ public class DataUtils {
cursor.close(); cursor.close();
return snippet; return snippet;
} }
throw new IllegalArgumentException("Note is not found with id: " + noteId); throw new IllegalArgumentException("Note is not found with id: " + noteId);//如果查询结果为空，则抛出IllegalArgumentException异常，提示便签ID不存在。
} }
public static String getFormattedSnippet(String snippet) { 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) { if (snippet != null) {//首先判断传入的便签片段(snippet)是否为空。如果不为空，则执行下一步；否则直接返回空字符串
snippet = snippet.trim(); snippet = snippet.trim();//对便签片段进行trim操作，去除字符串前后的空格。
int index = snippet.indexOf('\n'); int index = snippet.indexOf('\n');//查找便签片段中第一个换行符(\n)的索引位置，如果找到了，则截取从开头到该索引位置的子字符串；否则保留原始字符串。
if (index != -1) { if (index != -1) {
snippet = snippet.substring(0, index); snippet = snippet.substring(0, index);
} }
} }
return snippet; return snippet;//返回格式化后的便签片段。
} }
} }

11
src/Notes-master/src/net/micode/notes/tool/GTaskStringUtils.java
Unescape View File

@ -13,16 +13,17 @@
* See the License for the specific language governing permissions and * See the License for the specific language governing permissions and
* limitations under the License. * limitations under the License.
*/ */
//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; package net.micode.notes.tool;
//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
public class GTaskStringUtils { public class GTaskStringUtils {
// 前面一部分常量名称都以"GTASK_JSON_"开头，表示它们是Google Tasks API中JSON格式的字段名称。
public final static String GTASK_JSON_ACTION_ID = "action_id";//操作的ID
public final static String GTASK_JSON_ACTION_ID = "action_id"; public final static String GTASK_JSON_ACTION_LIST = "action_list";//操作列表
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 = "action_type";//操作类型
public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create"; public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create";

125
src/Notes-master/src/net/micode/notes/tool/ResourceParser.java
Unescape View File

@ -16,14 +16,30 @@
package net.micode.notes.tool; package net.micode.notes.tool;
import android.content.Context; import android.content.Context;//Context是一个Android系统级别的类，它提供了访问应用程序资源和执行应用程序操作的方法。通过使用Context，开发者可以获取应用程序的上下文环境，例如访问应用程序的资源文件、启动活动、发送广播等。
import android.preference.PreferenceManager; import android.preference.PreferenceManager;//PreferenceManager是Android提供的一个管理应用程序偏好设置的类。偏好设置是一种存储和检索简单数据的机制，例如用户首选项、应用程序设置等。PreferenceManager提供了一些方便的方法来读取和写入偏好设置，并且可以自动处理数据类型转换和持久化存储。
import net.micode.notes.R; import net.micode.notes.R;
import net.micode.notes.ui.NotesPreferenceActivity; import net.micode.notes.ui.NotesPreferenceActivity;
public class ResourceParser {
////*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 {
//定义颜色编号
public static final int YELLOW = 0; public static final int YELLOW = 0;
public static final int BLUE = 1; public static final int BLUE = 1;
public static final int WHITE = 2; public static final int WHITE = 2;
@ -31,7 +47,7 @@ public class ResourceParser {
public static final int RED = 4; public static final int RED = 4;
public static final int BG_DEFAULT_COLOR = YELLOW; public static final int BG_DEFAULT_COLOR = YELLOW;
//定义大小编号
public static final int TEXT_SMALL = 0; public static final int TEXT_SMALL = 0;
public static final int TEXT_MEDIUM = 1; public static final int TEXT_MEDIUM = 1;
public static final int TEXT_LARGE = 2; public static final int TEXT_LARGE = 2;
@ -40,20 +56,21 @@ public class ResourceParser {
public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM; public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;
public static class NoteBgResources { public static class NoteBgResources {
// 表示笔记编辑界面的不同背景颜色
private final static int [] BG_EDIT_RESOURCES = new int [] { private final static int [] BG_EDIT_RESOURCES = new int [] {
R.drawable.edit_yellow, R.drawable.edit_yellow,
R.drawable.edit_blue, R.drawable.edit_blue,
R.drawable.edit_white, R.drawable.edit_white,
R.drawable.edit_green, R.drawable.edit_green,
R.drawable.edit_red R.drawable.edit_red
}; };
//标题栏背景颜色
private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] { private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] {
R.drawable.edit_title_yellow, R.drawable.edit_title_yellow,
R.drawable.edit_title_blue, R.drawable.edit_title_blue,
R.drawable.edit_title_white, R.drawable.edit_title_white,
R.drawable.edit_title_green, R.drawable.edit_title_green,
R.drawable.edit_title_red R.drawable.edit_title_red
}; };
public static int getNoteBgResource(int id) { public static int getNoteBgResource(int id) {
@ -64,7 +81,9 @@ public class ResourceParser {
return BG_EDIT_TITLE_RESOURCES[id]; return BG_EDIT_TITLE_RESOURCES[id];
} }
} }
//直接获取默认的背景颜色。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
// getDefaultBgId方法是一个公共静态方法，它接收一个Context对象作为参数，并根据应用程序的偏好设置确定默认的背景颜色ID。如果偏好设置中设置了背景颜色，则随机选择一个背景颜色ID；否则，返回一个默认的背景颜色ID。
public static int getDefaultBgId(Context context) { public static int getDefaultBgId(Context context) {
if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean( if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) { NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
@ -74,37 +93,38 @@ public class ResourceParser {
} }
} }
// NoteItemBgResources类类似于NoteBgResources类，它也包含一个私有的静态整型数组BG_FIRST_RESOURCES，用于表示笔记列表项的不同背景颜色。这些资源文件ID代表了笔记列表项在不同状态下的背景样式。
public static class NoteItemBgResources { public static class NoteItemBgResources {
private final static int [] BG_FIRST_RESOURCES = new int [] { private final static int [] BG_FIRST_RESOURCES = new int [] {
R.drawable.list_yellow_up, R.drawable.list_yellow_up,
R.drawable.list_blue_up, R.drawable.list_blue_up,
R.drawable.list_white_up, R.drawable.list_white_up,
R.drawable.list_green_up, R.drawable.list_green_up,
R.drawable.list_red_up R.drawable.list_red_up
}; };
private final static int [] BG_NORMAL_RESOURCES = new int [] { private final static int [] BG_NORMAL_RESOURCES = new int [] {
R.drawable.list_yellow_middle, R.drawable.list_yellow_middle,
R.drawable.list_blue_middle, R.drawable.list_blue_middle,
R.drawable.list_white_middle, R.drawable.list_white_middle,
R.drawable.list_green_middle, R.drawable.list_green_middle,
R.drawable.list_red_middle R.drawable.list_red_middle
}; };
private final static int [] BG_LAST_RESOURCES = new int [] { private final static int [] BG_LAST_RESOURCES = new int [] {
R.drawable.list_yellow_down, R.drawable.list_yellow_down,
R.drawable.list_blue_down, R.drawable.list_blue_down,
R.drawable.list_white_down, R.drawable.list_white_down,
R.drawable.list_green_down, R.drawable.list_green_down,
R.drawable.list_red_down, R.drawable.list_red_down,
}; };
private final static int [] BG_SINGLE_RESOURCES = new int [] { private final static int [] BG_SINGLE_RESOURCES = new int [] {
R.drawable.list_yellow_single, R.drawable.list_yellow_single,
R.drawable.list_blue_single, R.drawable.list_blue_single,
R.drawable.list_white_single, R.drawable.list_white_single,
R.drawable.list_green_single, R.drawable.list_green_single,
R.drawable.list_red_single R.drawable.list_red_single
}; };
public static int getNoteBgFirstRes(int id) { public static int getNoteBgFirstRes(int id) {
@ -128,13 +148,14 @@ public class ResourceParser {
} }
} }
// 这些数组存储了一组资源文件的ID，用于表示小部件（widget）的不同背景颜色。其中，BG_2X_RESOURCES数组存储了用于2x尺寸的小部件背景颜色的资源文件ID，而BG_4X_RESOURCES数组存储了用于4x尺寸的小部件背景颜色的资源文件ID。
public static class WidgetBgResources { public static class WidgetBgResources {
private final static int [] BG_2X_RESOURCES = new int [] { private final static int [] BG_2X_RESOURCES = new int [] {
R.drawable.widget_2x_yellow, R.drawable.widget_2x_yellow,
R.drawable.widget_2x_blue, R.drawable.widget_2x_blue,
R.drawable.widget_2x_white, R.drawable.widget_2x_white,
R.drawable.widget_2x_green, R.drawable.widget_2x_green,
R.drawable.widget_2x_red, R.drawable.widget_2x_red,
}; };
public static int getWidget2xBgResource(int id) { public static int getWidget2xBgResource(int id) {
@ -142,11 +163,11 @@ public class ResourceParser {
} }
private final static int [] BG_4X_RESOURCES = new int [] { private final static int [] BG_4X_RESOURCES = new int [] {
R.drawable.widget_4x_yellow, R.drawable.widget_4x_yellow,
R.drawable.widget_4x_blue, R.drawable.widget_4x_blue,
R.drawable.widget_4x_white, R.drawable.widget_4x_white,
R.drawable.widget_4x_green, R.drawable.widget_4x_green,
R.drawable.widget_4x_red R.drawable.widget_4x_red
}; };
public static int getWidget4xBgResource(int id) { public static int getWidget4xBgResource(int id) {
@ -154,14 +175,18 @@ public class ResourceParser {
} }
} }
// 用于存储一组文本外观（TextAppearance）的资源文件ID。这些资源文件ID代表了不同文本样式的设置，如正常字体、中等字体、大号字体、超大号字体等
public static class TextAppearanceResources { public static class TextAppearanceResources {
// 可以根据给定的索引获取对应的文本样式的资源文件ID。注意这里有一个容错的函数，当传入的索引大于等于资源数量时，会返回默认的字体大小设置。
private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] { private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] {
R.style.TextAppearanceNormal, R.style.TextAppearanceNormal,
R.style.TextAppearanceMedium, R.style.TextAppearanceMedium,
R.style.TextAppearanceLarge, R.style.TextAppearanceLarge,
R.style.TextAppearanceSuper 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
// getResourcesSize方法返回文本外观资源文件ID数组的长度，也就是资源文件的总数。
public static int getTexAppearanceResource(int id) { public static int getTexAppearanceResource(int id) {
/** /**
* HACKME: Fix bug of store the resource id in shared preference. * HACKME: Fix bug of store the resource id in shared preference.
@ -179,3 +204,5 @@ public class ResourceParser {
} }
} }
} }

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