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other/07_210340139_陈政杨_代码标注/精读 model tool widget/model/Note.java

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+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//单个便签项
+package net.micode.notes.model;
+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
+
+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;
+
+//笔记类
+public class Note {
+    private 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) {
+        // 在数据库中创建一个新笔记
+        ContentValues values = new ContentValues();
+        long createdTime = System.currentTimeMillis();
+        values.put(NoteColumns.CREATED_DATE, createdTime);
+        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); // 将数据写入数据库表格
+        Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);
+        // ContentResolver()主要实现外部应用对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;
+    }
+    // 定义两个变量用来储存便签的数据，一个是储存便签属性、一个是储存便签内容
+    public Note() {
+        mNoteDiffValues = new ContentValues();
+        mNoteData = new NoteData();
+    }
+    // 设置数据库表格的标签属性数据
+    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文本内容的数据
+    public void setTextData(String key, String value) {
+        mNoteData.setTextData(key, value);
+    }
+    // 设置文本数据ID
+    public void setTextDataId(long id) {
+        mNoteData.setTextDataId(id);
+    }
+    // 得到文本数据的ID
+    public long getTextDataId() {
+        return mNoteData.mTextDataId;
+    }
+    // 设置电话号码数据的ID
+    public void setCallDataId(long id) {
+        mNoteData.setCallDataId(id);
+    }
+    // 得到电话号码数据的ID
+    public void setCallData(String key, String value) {
+        mNoteData.setCallData(key, value);
+    }
+    // 判断是否是本地修改
+    public boolean isLocalModified() {
+        return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
+    }
+    // 判断数据是否同步
+    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
+         * note data info
+         */
+        if (context.getContentResolver().update(
+                ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null,
+                null) == 0) {
+            Log.e(TAG, "Update note error, should not happen");
+            // Do not return, fall through
+        }
+        mNoteDiffValues.clear();
+
+        if (mNoteData.isLocalModified()
+                && (mNoteData.pushIntoContentResolver(context, noteId) == null)) {
+            return false;
+        }
+
+        return true;
+    }
+    // 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 class NoteData {
+        private long mTextDataId;
+
+        private ContentValues mTextDataValues;// 文本数据
+
+        private long mCallDataId;
+
+        private ContentValues mCallDataValues;// 电话号码数据
+
+        private static final String TAG = "NoteData";
+        // 下面是上述几个方法的具体实现
+        public NoteData() {
+            mTextDataValues = new ContentValues();
+            mCallDataValues = new ContentValues();
+            mTextDataId = 0;
+            mCallDataId = 0;
+        }
+
+        boolean isLocalModified() {
+            return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
+        }
+
+        void setTextDataId(long id) {
+            if(id <= 0) {
+                throw new IllegalArgumentException("Text data id should larger than 0");
+            }
+            mTextDataId = 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) {
+            mCallDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+        }
+
+        void setTextData(String key, String value) {
+            mTextDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+        }
+        //下面方法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
+             */
+            //判断数据是否合法
+            if (noteId <= 0) {
+                throw new IllegalArgumentException("Wrong note id:" + noteId);
+            }
+
+            ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+            ContentProviderOperation.Builder builder = null;
+            //把文本数据存入DataColumns
+            if(mTextDataValues.size() > 0) {
+                mTextDataValues.put(DataColumns.NOTE_ID, noteId);
+                if (mTextDataId == 0) {
+                    mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);
+                    Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
+                            mTextDataValues);
+                    try {
+                        setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
+                    } catch (NumberFormatException e) {
+                        Log.e(TAG, "Insert new text data fail with noteId" + noteId);
+                        mTextDataValues.clear();
+                        return null;
+                    }
+                } else {
+                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+                            Notes.CONTENT_DATA_URI, mTextDataId));
+                    builder.withValues(mTextDataValues);
+                    operationList.add(builder.build());
+                }
+                mTextDataValues.clear();
+            }
+            //把电话号码数据存入DataColumns
+            if(mCallDataValues.size() > 0) {
+                mCallDataValues.put(DataColumns.NOTE_ID, noteId);
+                if (mCallDataId == 0) {
+                    mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE);
+                    Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
+                            mCallDataValues);
+                    try {
+                        setCallDataId(Long.valueOf(uri.getPathSegments().get(1)));
+                    } catch (NumberFormatException e) {
+                        Log.e(TAG, "Insert new call data fail with noteId" + noteId);
+                        mCallDataValues.clear();
+                        return null;
+                    }
+                } else {
+                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+                            Notes.CONTENT_DATA_URI, mCallDataId));
+                    builder.withValues(mCallDataValues);
+                    operationList.add(builder.build());
+                }
+                mCallDataValues.clear();
+            }
+            //存储过程中的异常处理
+            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);
+                } catch (RemoteException e) {
+                    Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+                    return null;
+                } catch (OperationApplicationException e) {
+                    Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+                    return null;
+                }
+            }
+            return null;
+        }
+    }
+}

other/07_210340139_陈政杨_代码标注/精读 model tool widget/model/WorkingNote.java

@@ -0,0 +1,390 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.model;
+
+import android.appwidget.AppWidgetManager;
+import android.content.ContentUris;
+import android.content.Context;
+import android.database.Cursor;
+import android.text.TextUtils;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.Notes.TextNote;
+import net.micode.notes.tool.ResourceParser.NoteBgResources;
+
+
+public class WorkingNote {
+    // Note for the working note
+    private Note mNote;
+    // Note Id
+    private long mNoteId;
+    // Note content
+    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,
+            DataColumns.MIME_TYPE,
+            DataColumns.DATA1,
+            DataColumns.DATA2,
+            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,
+            NoteColumns.BG_COLOR_ID,
+            NoteColumns.WIDGET_ID,
+            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) {
+        mContext = context;
+        mAlertDate = 0;
+        mModifiedDate = System.currentTimeMillis();
+        mFolderId = folderId;
+        mNote = new Note();
+        mNoteId = 0;
+        mIsDeleted = false;
+        mMode = 0;
+        mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
+    }
+
+    // Existing note construct
+    // WorkingNote的构造函数
+    private WorkingNote(Context context, long noteId, long folderId) {
+        mContext = context;
+        mNoteId = noteId;
+        mFolderId = folderId;
+        mIsDeleted = false;
+        mNote = new Note();
+        loadNote();
+    }
+
+    // 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);
+                mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);
+                mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN);
+                mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN);
+                mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN);
+                mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
+            }
+            cursor.close();
+
+        // 若不存在，则报错
+        } else {
+            Log.e(TAG, "No note with id:" + mNoteId);
+            throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
+        }
+        loadNoteData();
+    }
+    // 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);
+        // 查到消息不为空
+        if (cursor != null) {
+            // 查看第一项是否存在
+            if (cursor.moveToFirst()) {
+                do {
+                    String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
+                    if (DataConstants.NOTE.equals(type)) {
+                        mContent = cursor.getString(DATA_CONTENT_COLUMN);
+                        mMode = cursor.getInt(DATA_MODE_COLUMN);
+                        mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN));
+                    } else if (DataConstants.CALL_NOTE.equals(type)) {
+                        mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN));
+                    } else {
+                        Log.d(TAG, "Wrong note type with type:" + type);
+                    }
+                } while (cursor.moveToNext()); // 查阅所有项，直到为空
+            }
+            cursor.close();
+        } else {
+            Log.e(TAG, "No 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,
+            int widgetType, int defaultBgColorId) {
+        WorkingNote note = new WorkingNote(context, folderId);
+        note.setBgColorId(defaultBgColorId);
+        note.setWidgetId(widgetId);
+        note.setWidgetType(widgetType);
+        return note;
+    }
+
+    // 保存Note
+    public static WorkingNote load(Context context, long id) {
+        return new WorkingNote(context, id, 0);
+    }
+
+    public synchronized boolean saveNote() {
+        // 是否值得保存
+        if (isWorthSaving()) {
+            // 是否存在数据库中
+            if (!existInDatabase()) {
+                if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
+                    Log.e(TAG, "Create new note fail with id:" + mNoteId);
+                    return false;
+                }
+            }
+
+            mNote.syncNote(mContext, mNoteId);
+
+            /**
+             * Update widget content if there exist any widget of this note
+             */
+            if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
+                    && mWidgetType != Notes.TYPE_WIDGET_INVALIDE
+                    && mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onWidgetChanged();
+            }
+            return true;
+        } else {
+            return false;
+        }
+    }
+    // 是否在数据库中存在
+    public boolean existInDatabase() {
+        return mNoteId > 0;
+    }
+    // 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;
+        } else {
+            return true;
+        }
+    }
+    // 设置mNoteSettingStatusListener
+    public void setOnSettingStatusChangedListener(NoteSettingChangedListener 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) {
+        if (date != mAlertDate) {
+            mAlertDate = date;
+            mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate));
+        }
+        if (mNoteSettingStatusListener != null) {
+            mNoteSettingStatusListener.onClockAlertChanged(date, set);
+        }
+    }
+    // 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();
+        }
+    }
+    // 设定背景颜色
+    public void setBgColorId(int id) {
+        if (id != mBgColorId) {
+            mBgColorId = id;
+            if (mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onBackgroundColorChanged();
+            }
+            mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
+        }
+    }
+    // 设定检查列表模式
+    // 参数：mode
+    public void setCheckListMode(int mode) {
+        if (mMode != mode) {
+            if (mNoteSettingStatusListener != null) {
+                mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
+            }
+            mMode = mode;
+            mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
+        }
+    }
+    // 设定WidgetType
+    // 参数：type
+    public void setWidgetType(int type) {
+        if (type != mWidgetType) {
+            mWidgetType = type;
+            mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
+        }
+    }
+    // 设定WidgetId
+    // 参数：id
+    public void setWidgetId(int id) {
+        if (id != mWidgetId) {
+            mWidgetId = id;
+            mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
+        }
+    }
+    // 设定WorkingTex
+    // 参数：更改的text
+    public void setWorkingText(String text) {
+        if (!TextUtils.equals(mContent, text)) {
+            mContent = text;
+            mNote.setTextData(DataColumns.CONTENT, mContent);
+        }
+    }
+    // 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);
+    }
+    // 获取Content
+    public String getContent() {
+        return mContent;
+    }
+    // 获取AlertDate
+    public long getAlertDate() {
+        return mAlertDate;
+    }
+    // 获取ModifiedDate
+    public long getModifiedDate() {
+        return mModifiedDate;
+    }
+    // 获取背景颜色来源id
+    public int getBgColorResId() {
+        return NoteBgResources.getNoteBgResource(mBgColorId);
+    }
+    // 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;
+    }
+    // 获取文件夹id
+    public long getFolderId() {
+        return mFolderId;
+    }
+    // 获取WidgetId
+    public int getWidgetId() {
+        return mWidgetId;
+    }
+    // 获取WidgetType
+    public int getWidgetType() {
+        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 {
+        /**
+         * Called when the background color of current note has just changed
+         */
+        void onBackgroundColorChanged();
+
+        /**
+         * Called when user set clock
+         */
+        void onClockAlertChanged(long date, boolean set);
+
+        /**
+         * Call when user create note from widget
+         */
+        void onWidgetChanged();
+
+        /**
+         * Call when switch between check list mode and normal mode
+         * @param oldMode is previous mode before change
+         * @param newMode is new mode
+         */
+        void onCheckListModeChanged(int oldMode, int newMode);
+    }
+}

other/07_210340139_陈政杨_代码标注/精读 model tool widget/tool/BackupUtils.java

@@ -0,0 +1,364 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.os.Environment;
+import android.text.TextUtils;
+import android.text.format.DateFormat;
+import android.util.Log;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataConstants;
+import net.micode.notes.data.Notes.NoteColumns;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.PrintStream;
+
+
+public class BackupUtils {
+    private static final String TAG = "BackupUtils";
+    // Singleton stuff
+    private static BackupUtils sInstance;
+    /**synchronized 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。
+     */
+    public static synchronized BackupUtils getInstance(Context context) {
+        if (sInstance == null) {
+            //如果当前备份不存在，则新声明一个
+            sInstance = new BackupUtils(context);
+        }
+        return sInstance;
+    }
+
+    /**
+     * Following states are signs to represents backup or restore
+     * status
+     */
+    // 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
+    // 超市异常
+    public static final int STATE_SYSTEM_ERROR                 = 3;
+    // Backup or restore success
+    // 成功储存
+    public static final int STATE_SUCCESS                      = 4;
+
+    private TextExport mTextExport;
+
+    private BackupUtils(Context context) {
+        mTextExport = new TextExport(context);
+    }
+    // 外部储存功能是否可用
+    private static boolean externalStorageAvailable() {
+        return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
+    }
+
+    public int exportToText() {
+        return mTextExport.exportToText();
+    }
+
+    public String getExportedTextFileName() {
+        return mTextExport.mFileName;
+    }
+
+    public String getExportedTextFileDir() {
+        return mTextExport.mFileDirectory;
+    }
+
+    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;
+
+        private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
+
+        private static final int NOTE_COLUMN_SNIPPET = 2;
+
+        private static final String[] DATA_PROJECTION = {
+                DataColumns.CONTENT,
+                DataColumns.MIME_TYPE,
+                DataColumns.DATA1,
+                DataColumns.DATA2,
+                DataColumns.DATA3,
+                DataColumns.DATA4,
+        };
+
+        private static final int DATA_COLUMN_CONTENT = 0;
+
+        private static final int DATA_COLUMN_MIME_TYPE = 1;
+
+        private static final int DATA_COLUMN_CALL_DATE = 2;
+
+        private static final int DATA_COLUMN_PHONE_NUMBER = 4;
+
+        private final String [] TEXT_FORMAT;
+        private static final int FORMAT_FOLDER_NAME          = 0;
+        private static final int FORMAT_NOTE_DATE            = 1;
+        private static final int FORMAT_NOTE_CONTENT         = 2;
+
+        private Context mContext;
+        private String mFileName;
+        private String mFileDirectory;
+
+        public TextExport(Context context) {
+            TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
+            mContext = context;
+            mFileName = "";
+            mFileDirectory = "";
+        }
+        // 获取文本的组成部分
+        private String getFormat(int id) {
+            return TEXT_FORMAT[id];
+        }
+
+        /**
+         * Export the folder identified by folder id to text
+         */
+        private void exportFolderToText(String folderId, PrintStream ps) {
+            // Query notes belong to this folder
+            // 通过查询parent id 是文件夹的id的note来选出指定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);
+
+            if (notesCursor != null) {
+                if (notesCursor.moveToFirst()) {
+                    do {
+                        // 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
+                        String noteId = notesCursor.getString(NOTE_COLUMN_ID);
+                        // 将文件导出到text
+                        exportNoteToText(noteId, ps);
+                    } while (notesCursor.moveToNext());
+                }
+                notesCursor.close();
+            }
+        }
+
+        /**
+         * Export note identified by id to a print stream
+         */
+        private void exportNoteToText(String noteId, PrintStream ps) {
+            Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
+                    DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
+                        noteId
+                    }, null);
+            // 利用光标来扫描内容，区别为callnote和note两种，靠ps.printline两种
+            if (dataCursor != null) {
+                if (dataCursor.moveToFirst()) {
+                    do {
+                        String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
+                        if (DataConstants.CALL_NOTE.equals(mimeType)) {
+                            // 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);
+                            //判断是否为空字符
+                            if (!TextUtils.isEmpty(phoneNumber)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        phoneNumber));
+                            }
+                            // 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
+                            if (!TextUtils.isEmpty(location)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        location));
+                            }
+                        } else if (DataConstants.NOTE.equals(mimeType)) {
+                            String content = dataCursor.getString(DATA_COLUMN_CONTENT);
+                            if (!TextUtils.isEmpty(content)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        content));
+                            }
+                        }
+                    } while (dataCursor.moveToNext());
+                }
+                dataCursor.close();
+            }
+            // print a line separator between note
+            try {
+                ps.write(new byte[] {
+                        Character.LINE_SEPARATOR, Character.LETTER_NUMBER
+                });
+            } catch (IOException e) {
+                Log.e(TAG, e.toString());
+            }
+        }
+
+        /**
+         * Note will be exported as text which is user readable
+         */
+        //总函数，调用上面的exportFolder和exportNote
+        public int exportToText() {
+            if (!externalStorageAvailable()) {
+                Log.d(TAG, "Media was not mounted");
+                return STATE_SD_CARD_UNMOUONTED;
+            }
+
+            PrintStream ps = getExportToTextPrintStream();
+            if (ps == null) {
+                Log.e(TAG, "get print stream error");
+                return STATE_SYSTEM_ERROR;
+            }
+            // 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 name
+                        String folderName = "";
+                        if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
+                            folderName = mContext.getString(R.string.call_record_folder_name);
+                        } else {
+                            folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
+                        }
+                        if (!TextUtils.isEmpty(folderName)) {
+                            ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName));
+                        }
+                        String folderId = folderCursor.getString(NOTE_COLUMN_ID);
+                        exportFolderToText(folderId, ps);
+                    } while (folderCursor.moveToNext());
+                }
+                folderCursor.close();
+            }
+
+            // 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 {
+                        ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
+                                mContext.getString(R.string.format_datetime_mdhm),
+                                noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
+                        // Query data belong to this note
+                        String noteId = noteCursor.getString(NOTE_COLUMN_ID);
+                        exportNoteToText(noteId, ps);
+                    } while (noteCursor.moveToNext());
+                }
+                noteCursor.close();
+            }
+            ps.close();
+
+            return STATE_SUCCESS;
+        }
+
+        /**
+         * Get a print stream pointed to the file {@generateExportedTextFile}
+         */
+        private PrintStream getExportToTextPrintStream() {
+            File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
+                    R.string.file_name_txt_format);
+            if (file == null) {
+                Log.e(TAG, "create file to exported failed");
+                return null;
+            }
+            mFileName = file.getName();
+            mFileDirectory = mContext.getString(R.string.file_path);
+            PrintStream ps = null;
+            try {
+                FileOutputStream fos = new FileOutputStream(file);
+                //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
+                ps = new PrintStream(fos);
+            } catch (FileNotFoundException e) {
+                e.printStackTrace();
+                return null;
+            } catch (NullPointerException e) {
+                e.printStackTrace();
+                return null;
+            }
+            return ps;
+        }
+    }
+
+    /**
+     * Generate the text file to store imported data
+     */
+    private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
+        StringBuilder sb = new StringBuilder();
+        //外部（SD卡）的存储路径
+        sb.append(Environment.getExternalStorageDirectory());
+        //文件的存储路径
+        sb.append(context.getString(filePathResId));
+        //filedir应该就是用来存储路径信息
+        File filedir = new File(sb.toString());
+        sb.append(context.getString(
+                fileNameFormatResId,
+                DateFormat.format(context.getString(R.string.format_date_ymd),
+                        System.currentTimeMillis())));
+        File file = new File(sb.toString());
+        //如果这些文件不存在，则新建
+        try {
+            if (!filedir.exists()) {
+                filedir.mkdir();
+            }
+            if (!file.exists()) {
+                file.createNewFile();
+            }
+            return file;
+        } catch (SecurityException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+}
+
+

other/07_210340139_陈政杨_代码标注/精读 model tool widget/tool/DataUtils.java

@@ -0,0 +1,312 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+import android.content.ContentProviderOperation;
+import android.content.ContentProviderResult;
+import android.content.ContentResolver;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.OperationApplicationException;
+import android.database.Cursor;
+import android.os.RemoteException;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+
+
+public class DataUtils {
+    public static final String TAG = "DataUtils";
+    //直接删除多个笔记
+    public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {
+        if (ids == null) {
+            Log.d(TAG, "the ids is null");
+            return true;
+        }
+        if (ids.size() == 0) {
+            Log.d(TAG, "no id is in the hashset");
+            return true;
+        }
+        //提供一个任务列表
+        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+        for (long id : ids) {
+            //如果发现是根文件夹，则不删除
+            if(id == Notes.ID_ROOT_FOLDER) {
+                Log.e(TAG, "Don't delete system folder root");
+                continue;
+            }
+            //用newDelete实现删除功能
+            ContentProviderOperation.Builder builder = ContentProviderOperation
+                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+            operationList.add(builder.build());
+        }
+        try {
+            //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。
+            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
+            //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());
+                return false;
+            }
+            return true;
+        } catch (RemoteException e) {
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        } catch (OperationApplicationException e) {
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        }
+        return false;
+    }
+
+    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);
+        //对需要移动的便签进行数据更新，然后用update实现
+        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
+    }
+
+    public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
+            long folderId) {
+        if (ids == null) {
+            Log.d(TAG, "the ids is null");
+            return true;
+        }
+
+        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+        //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
+        for (long id : ids) {
+            //通过withAppendedId方法，为该Uri加上ID
+            ContentProviderOperation.Builder builder = ContentProviderOperation
+                    .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+            builder.withValue(NoteColumns.PARENT_ID, folderId);
+            builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
+            operationList.add(builder.build());
+        }
+
+        try {
+            //applyBatch一次性处理一个操作列表
+            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);
+            if (results == null || results.length == 0 || results[0] == null) {
+                Log.d(TAG, "delete notes failed, ids:" + ids.toString());
+                return false;
+            }
+            return true;
+        } catch (RemoteException e) {
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        } catch (OperationApplicationException e) {
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        }
+        return false;
+    }
+
+    /**
+     * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
+     */
+    public static int getUserFolderCount(ContentResolver resolver) {
+        Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
+                new String[] { "COUNT(*)" },
+                NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+                //筛选条件：源文件不为trash folder
+                new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
+                null);
+
+        int count = 0;
+        if(cursor != null) {
+            if(cursor.moveToFirst()) {
+                try {
+                    count = cursor.getInt(0);
+                } catch (IndexOutOfBoundsException e) {
+                    Log.e(TAG, "get folder count failed:" + e.toString());
+                } finally {
+                    cursor.close();
+                }
+            }
+        }
+        return count;
+    }
+
+    public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
+        //通过withAppendedId方法，为该Uri加上ID
+        //查询条件：type符合，且不属于垃圾文件夹
+        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
+                null,
+                NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
+                new String [] {String.valueOf(type)},
+                null);
+
+        boolean exist = false;
+        if (cursor != null) {
+            //用getcount函数判断cursor是否为空
+            if (cursor.getCount() > 0) {
+                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),
+                null, null, null, null);
+
+        boolean exist = false;
+        if (cursor != null) {
+            if (cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
+        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
+                null, null, null, null);
+        //通过名字查询文件是否存在
+        boolean exist = false;
+        if (cursor != null) {
+            if (cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
+        //查询条件：父ID是传入的folderId;
+        Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
+                NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
+                " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
+                " AND " + NoteColumns.SNIPPET + "=?",
+                new String[] { name }, null);
+        boolean exist = false;
+        if(cursor != null) {
+            if(cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
+        Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
+                new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
+                NoteColumns.PARENT_ID + "=?",
+                new String[] { String.valueOf(folderId) },
+                null);
+
+        HashSet<AppWidgetAttribute> set = null;
+        if (c != null) {
+            if (c.moveToFirst()) {
+                set = new HashSet<AppWidgetAttribute>();
+                do {
+                    try {
+                        AppWidgetAttribute widget = new AppWidgetAttribute();
+                        //0对应的NoteColumns.WIDGET_ID
+                        widget.widgetId = c.getInt(0);
+                        //1对应的NoteColumns.WIDGET_TYPE
+                        widget.widgetType = c.getInt(1);
+                        set.add(widget);
+                    } catch (IndexOutOfBoundsException e) {
+                        Log.e(TAG, e.toString());
+                    }
+                } while (c.moveToNext());//查询下一条
+            }
+            c.close();
+        }
+        return set;
+    }
+
+    public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
+        Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
+                new String [] { CallNote.PHONE_NUMBER },
+                CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
+                new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
+                null);
+        //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 && cursor.moveToFirst()) {
+            try {
+                return cursor.getString(0);
+            } catch (IndexOutOfBoundsException e) {
+                Log.e(TAG, "Get call number fails " + e.toString());
+            } finally {
+                cursor.close();
+            }
+        }
+        return "";
+    }
+
+    public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
+        Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
+                new String [] { CallNote.NOTE_ID },
+                CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
+                + CallNote.PHONE_NUMBER + ",?)",
+                new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
+                null);
+
+        if (cursor != null) {
+            if (cursor.moveToFirst()) {
+                try {
+                    return cursor.getLong(0);
+                } catch (IndexOutOfBoundsException e) {
+                    Log.e(TAG, "Get call note id fails " + e.toString());
+                }
+            }
+            cursor.close();
+        }
+        return 0;
+    }
+
+    public static String getSnippetById(ContentResolver resolver, long noteId) {
+        //查询条件：noteId
+        Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
+                new String [] { NoteColumns.SNIPPET },
+                NoteColumns.ID + "=?",
+                new String [] { String.valueOf(noteId)},
+                null);
+
+        if (cursor != null) {
+            String snippet = "";
+            if (cursor.moveToFirst()) {
+                snippet = cursor.getString(0);
+            }
+            cursor.close();
+            return snippet;
+        }
+        throw new IllegalArgumentException("Note is not found with id: " + noteId);
+    }
+    //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
+    public static String getFormattedSnippet(String snippet) {
+        if (snippet != null) {
+            snippet = snippet.trim();
+            int index = snippet.indexOf('\n');
+            if (index != -1) {
+                snippet = snippet.substring(0, index);
+            }
+        }
+        return snippet;
+    }
+}

other/07_210340139_陈政杨_代码标注/精读 model tool widget/tool/GTaskStringUtils.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//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，方便查看
+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 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";
+
+}

other/07_210340139_陈政杨_代码标注/精读 model tool widget/tool/ResourceParser.java

@@ -0,0 +1,196 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.preference.PreferenceManager;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.NotesPreferenceActivity;
+
+/*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
+        };
+
+        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
+        };
+
+        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) {
+        if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
+                NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
+            return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length);
+        } else {
+            return BG_DEFAULT_COLOR;
+        }
+    }
+
+    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
+        };
+
+        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
+        };
+
+        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,
+        };
+
+        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
+        };
+
+        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,
+        };
+
+        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
+        };
+
+        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
+        };
+        //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.
+             * The id may larger than the length of resources, in this case,
+             * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
+             */
+            if (id >= TEXTAPPEARANCE_RESOURCES.length) {
+                return BG_DEFAULT_FONT_SIZE;
+            }
+            return TEXTAPPEARANCE_RESOURCES[id];
+        }
+
+        public static int getResourcesSize() {
+            return TEXTAPPEARANCE_RESOURCES.length;
+        }
+    }
+}

other/07_210340139_陈政杨_代码标注/精读 model tool widget/widget/NoteWidgetProvider.java

@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//该类实现正常桌面的挂件
+package net.micode.notes.widget;
+import android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProvider;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.util.Log;
+import android.widget.RemoteViews;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.tool.ResourceParser;
+import net.micode.notes.ui.NoteEditActivity;
+import net.micode.notes.ui.NotesListActivity;
+
+public abstract class NoteWidgetProvider extends AppWidgetProvider {
+    public static final String [] PROJECTION = new String [] {
+        NoteColumns.ID,
+        NoteColumns.BG_COLOR_ID,
+        NoteColumns.SNIPPET
+    };
+
+    public static final int COLUMN_ID           = 0; // 标签栏编号
+    public static final int COLUMN_BG_COLOR_ID  = 1; // 背景颜色编号
+    public static final int COLUMN_SNIPPET      = 2; // 便签片段
+
+    private static final String TAG = "NoteWidgetProvider";
+
+    @Override
+    public void onDeleted(Context context, int[] appWidgetIds) {
+        ContentValues values = new ContentValues();
+        values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
+        // 修改删除的路径位置
+        for (int i = 0; i < appWidgetIds.length; i++) {
+            context.getContentResolver().update(Notes.CONTENT_NOTE_URI,
+                    values,
+                    NoteColumns.WIDGET_ID + "=?",
+                    new String[] { String.valueOf(appWidgetIds[i])});
+        }
+    }
+    // 修改删除的路径位置
+    private Cursor getNoteWidgetInfo(Context context, int widgetId) {
+        return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+                PROJECTION,
+                // 用ID来筛选，同时要是存在于未被删除的文件夹中
+                NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+                new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) },
+                null);
+    }
+    // 用updata函数来实现小米便签挂件appWidgetlds信息的返回与更新
+    protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        update(context, appWidgetManager, appWidgetIds, false);
+    }
+    // 更新widget的信息方法
+    private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
+            boolean privacyMode) {
+        // 每添加一个widget就会进行一次循环更新widget操作
+        for (int i = 0; i < appWidgetIds.length; i++) {
+            if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
+                int bgId = ResourceParser.getDefaultBgId(context);
+                String snippet = "";
+                Intent intent = new Intent(context, NoteEditActivity.class);
+                intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
+                intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
+                intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
+
+                Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
+                /* cursor.moveToFirst（）指向查询结果的第一个位置，
+                一般通过判断cursor.moveToFirst()的值为true或false来确定查询结果是否为空
+                */
+                if (c != null && c.moveToFirst()) {
+                    // 返回cursor中的行数。
+                    if (c.getCount() > 1) {
+                        Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
+                        c.close();
+                        return;
+                    }
+                    snippet = c.getString(COLUMN_SNIPPET);
+                    bgId = c.getInt(COLUMN_BG_COLOR_ID);
+                    intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID));
+                    intent.setAction(Intent.ACTION_VIEW);
+                } else {
+                    snippet = context.getResources().getString(R.string.widget_havenot_content);
+                    intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+                }
+
+                if (c != null) {
+                    c.close();
+                }
+                // RemoteViews可以展示一个layout显示的view，set方法更新内容，支持有限的布局和控件。这里主要是获取对应视图
+                RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
+                // 根据图片资源设置图片
+                rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
+                intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
+                /**
+                 * Generate the pending intent to start host for the widget
+                 */
+                PendingIntent pendingIntent = null;
+                // 判定是否是私密模式
+                if (privacyMode) {
+                    rv.setTextViewText(R.id.widget_text,
+                            context.getString(R.string.widget_under_visit_mode));
+                    pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent(
+                            context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
+                } else {
+                    rv.setTextViewText(R.id.widget_text, snippet);
+                    pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
+                            PendingIntent.FLAG_UPDATE_CURRENT);
+                }
+                // 窗口服务部件
+                rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
+                // 更新widget信息
+                appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
+            }
+        }
+    }
+    // 从背景资源中获取当前应用ID
+    protected abstract int getBgResourceId(int bgId);
+    // 获取部局ID
+    protected abstract int getLayoutId();
+    // 获取挂件的类型，即2x2型或者4x4型
+    protected abstract int getWidgetType();
+}

other/07_210340139_陈政杨_代码标注/精读 model tool widget/widget/NoteWidgetProvider_2x.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// 声明小米便签窗口部件这个包
+package net.micode.notes.widget;
+// 导入各种类
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.ResourceParser;
+
+// 继承了NoteWidgetProvider类，定义了2*2大小的窗口，并对部分函数进行重载
+public class NoteWidgetProvider_2x extends NoteWidgetProvider {
+    @Override
+    // 更新窗口
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        super.update(context, appWidgetManager, appWidgetIds);
+    }
+
+    @Override
+    // 返回2*2窗口布局
+    protected int getLayoutId() {
+        return R.layout.widget_2x;
+    }
+
+    @Override
+    // 获取背景id
+    protected int getBgResourceId(int bgId) {
+        return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId);
+    }
+
+    @Override
+    // 获取widget类型
+    protected int getWidgetType() {
+        return Notes.TYPE_WIDGET_2X;
+    }
+}

other/07_210340139_陈政杨_代码标注/精读 model tool widget/widget/NoteWidgetProvider_4x.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.ResourceParser;
+
+// 继承了NoteWidgetProvider类，定义了4*4大小的窗口，并对部分函数进行重载
+public class NoteWidgetProvider_4x extends NoteWidgetProvider {
+    @Override
+    // 对窗口更新进行重载
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        super.update(context, appWidgetManager, appWidgetIds);
+    }
+    // 返回4*4窗口布局
+    protected int getLayoutId() {
+        return R.layout.widget_4x;
+    }
+
+    @Override
+    // 获取背景id
+    protected int getBgResourceId(int bgId) {
+        return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId);
+    }
+    
+    @Override
+    // 获取widget类型
+    protected int getWidgetType() {
+        return Notes.TYPE_WIDGET_4X;
+    }
+}

other/07_210340169_薛傲翔_代码标注/精读UI包/AlarmAlertActivity.java

@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import android.app.Activity;    //创建显示窗口
+import android.app.AlertDialog; //
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.content.DialogInterface.OnDismissListener;
+import android.content.Intent;
+import android.media.AudioManager;
+import android.media.MediaPlayer;
+import android.media.RingtoneManager;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.PowerManager;
+import android.provider.Settings;
+import android.view.Window;
+import android.view.WindowManager;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.tool.DataUtils;
+import net.micode.notes.ui.NoteEditActivity;
+
+import java.io.IOException;
+
+
+public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
+    private long mNoteId;  //从数据库中获取便签的ID号
+    private String mSnippet;//闹钟提示时出现的文本片段
+    private static final int SNIPPET_PREW_MAX_LEN = 60; //文本最大值
+    MediaPlayer mPlayer;
+
+    @Override
+    //onCreate的作用是创建view、将数据绑定到list等等
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        //Bundle类型的数据与Map的数据类型类似，都是以key-value的形式存储数据的
+        //savedInstanceState方法是用来保存Activity的状态的
+
+        requestWindowFeature(Window.FEATURE_NO_TITLE);
+        //界面显示-无标题
+
+        final Window win = getWindow();
+        win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
+
+        //在手机锁屏后如果到了闹钟提示时间，点亮屏幕
+        if (!isScreenOn()) {
+            win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
+                    //保持窗口点亮
+                    | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
+                    //将窗体点亮
+                    | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
+                    //允许窗体点亮时锁屏
+                    | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
+        }
+
+        Intent intent = getIntent(); //获取一个整数
+
+        try {
+            //对ID进行初始化操作
+            mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
+
+            //根据ID从数据库中获取指定的标签内容
+            //this.getContentResolver()是实现数据共享，存储实例
+            mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
+
+            //判断mSnippet是否符合标准长度
+            mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
+                    SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
+                    : mSnippet;
+
+        } catch (IllegalArgumentException e) {
+            e.printStackTrace(); //在命令行打印异常信息在程序中出错的位置及原因
+            return;
+        }
+
+        mPlayer = new MediaPlayer(); //初始化
+        if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
+            showActionDialog(); //弹出对话框
+            playAlarmSound();   //闹钟提示音激发
+        } else {
+            finish();   //完成闹钟动作
+        }
+    }
+
+    //判断屏幕是否锁屏，调用系统函数判断，最后返回值是布尔类型
+    private boolean isScreenOn() {
+        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
+        return pm.isScreenOn();
+    }
+
+    //闹钟提示音激发
+    private void playAlarmSound() {
+        //调用系统的铃声管理URI，得到闹钟提示音
+        Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
+
+        int silentModeStreams = Settings.System.getInt(getContentResolver(),
+                Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
+
+        if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
+            mPlayer.setAudioStreamType(silentModeStreams);
+        } else {
+            mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
+        }
+        try {
+            //方法：setDataSource(Context context, Uri uri)
+            //解释：无返回值，设置多媒体数据来源【根据 Uri】
+            mPlayer.setDataSource(this, url);
+            //准备同步
+            mPlayer.prepare();
+            //设置是否循环播放
+            mPlayer.setLooping(true);
+            //开始播放
+            mPlayer.start();
+        } catch (IllegalArgumentException e) {
+            // TODO Auto-generated catch block
+            //e.printStackTrace()函数功能是抛出异常， 还将显示出更深的调用信息
+            //System.out.println(e)，这个方法打印出异常，并且输出在哪里出现的异常
+            e.printStackTrace();
+        } catch (SecurityException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        } catch (IllegalStateException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        } catch (IOException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
+    }
+
+    private void showActionDialog() {
+        //AlertDialog的构造方法全部是Protected的
+        //所以不能直接通过new一个AlertDialog来创建出一个AlertDialog。
+        //要创建一个AlertDialog，就要用到AlertDialog.Builder中的create()方法
+        //如这里的dialog就是新建了一个AlertDialog
+        AlertDialog.Builder dialog = new AlertDialog.Builder(this);
+        //为对话框设置标题
+        dialog.setTitle(R.string.app_name);
+        //为对话框设置内容
+        dialog.setMessage(mSnippet);
+        //给对话框添加"Yes"按钮
+        dialog.setPositiveButton(R.string.notealert_ok, this);
+        //对话框添加"No"按钮
+        if (isScreenOn()) {
+            dialog.setNegativeButton(R.string.notealert_enter, this);
+        }
+        dialog.show().setOnDismissListener(this);
+    }
+
+    public void onClick(DialogInterface dialog, int which) {
+        //用which来选择click后下一步的操作
+        switch (which) {
+            //这是取消操作
+            case DialogInterface.BUTTON_NEGATIVE:
+                //实现两个类间的数据传输
+                Intent intent = new Intent(this, NoteEditActivity.class);
+                //设置动作属性
+                intent.setAction(Intent.ACTION_VIEW);
+                //实现key-value对
+                //EXTRA_UID为key；mNoteId为键
+                intent.putExtra(Intent.EXTRA_UID, mNoteId);
+                //开始动作
+                startActivity(intent);
+                break;
+            //这是确定操作
+            default:
+                break;
+        }
+    }
+
+    public void onDismiss(DialogInterface dialog) {
+        //忽略
+        stopAlarmSound();
+        //完成该动作
+        finish();
+    }
+
+    private void stopAlarmSound() {
+        if (mPlayer != null) {
+            //停止播放
+            mPlayer.stop();
+            mPlayer.release();
+            //释放MediaPlayer对象
+            mPlayer = null;
+        }
+    }
+}
+

other/07_210340169_薛傲翔_代码标注/精读UI包/AlarmInitReceiver.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.app.AlarmManager; //对系统闹钟服务的接口
+import android.app.PendingIntent;//获取闹钟通知信息
+import android.content.BroadcastReceiver;//接受来自系统和应用的广播并对其进行响应的组件
+import android.content.ContentUris;//用来处理“content”的约束uri对象
+import android.content.Context;//翻译上下文环境
+import android.content.Intent;//解决应用的各项组件之间的通讯
+import android.database.Cursor;//数据库的游标操作
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+
+
+public class AlarmInitReceiver extends BroadcastReceiver {
+
+    //创建对象用例
+    private static final String [] PROJECTION = new String [] {
+        NoteColumns.ID,
+        NoteColumns.ALERTED_DATE
+    };
+
+    //对数据库的操作，调用标签ID和闹钟时间
+    private static final int COLUMN_ID                = 0;
+    private static final int COLUMN_ALERTED_DATE      = 1;
+
+    //重写onReceive函数
+    //onReceive是广播的程序执行接收器
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        //System.currentTimeMillis()产生一个当前的毫秒
+        //这个毫秒从1970年1月1日0时起的毫秒数
+        long currentDate = System.currentTimeMillis();
+
+        //Cursor在这里的作用是通过过查找数据库中的标签内容，找到和当前系统时间相等的标签
+        Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+                PROJECTION,
+                NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
+                new String[] { String.valueOf(currentDate) },
+                null);
+
+        //这里是根据数据库里的闹钟时间创建了一个闹钟机制
+        // 下面的代码主要表现了其中一种创建闹钟机制，如新建Intent、PendingIntent以及AlarmManager等
+        if (c != null) {
+            if (c.moveToFirst()) {
+                do {
+                    long alertDate = c.getLong(COLUMN_ALERTED_DATE);
+                    Intent sender = new Intent(context, AlarmReceiver.class);
+                    sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID)));
+                    PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0);
+                    AlarmManager alermManager = (AlarmManager) context
+                            .getSystemService(Context.ALARM_SERVICE);
+                    alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);
+                } while (c.moveToNext());
+            }
+            c.close();
+        }
+    }
+}

other/07_210340169_薛傲翔_代码标注/精读UI包/AlarmReceiver.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.BroadcastReceiver;   //接受来自系统和应用的广播并对其进行响应的组件
+import android.content.Context;     //翻译上下文环境
+import android.content.Intent;      //解决应用的各项组件之间的通讯
+
+//这个类是实现alarm这个功能最接近用户层的包
+//具体的作用还要深究setClass和addFlags
+public class AlarmReceiver extends BroadcastReceiver {
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        //启动AlarmAlertActivity
+        intent.setClass(context, AlarmAlertActivity.class);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        context.startActivity(intent);
+    }
+}

other/07_210340169_薛傲翔_代码标注/精读UI包/DateTimePicker.java

@@ -0,0 +1,570 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import java.text.DateFormatSymbols;     //用于封装可本地化的日期格式数据的公共类
+import java.util.Calendar;  //操作日历字段，及其指定的特殊事件字段的转换提供了方法
+
+import net.micode.notes.R;
+
+
+import android.content.Context;  //翻译上下文环境
+import android.text.format.DateFormat; //实验/日期的格式化抽象子类
+import android.view.View;   //以矩形的方式显示在屏幕上，用户界面控件的基础
+import android.widget.FrameLayout;  //一种框架布局方式
+import android.widget.NumberPicker; //预定好的数字控件
+
+public class DateTimePicker extends FrameLayout {
+
+    //FrameLayout是布局模板之一
+    //FrameLayout是布局模板之一
+    private static final boolean DEFAULT_ENABLE_STATE = true;
+
+    private static final int HOURS_IN_HALF_DAY = 12;
+    private static final int HOURS_IN_ALL_DAY = 24;
+    private static final int DAYS_IN_ALL_WEEK = 7;
+    private static final int DATE_SPINNER_MIN_VAL = 0;
+    private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1;
+    private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0;
+    private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23;
+    private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1;
+    private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12;
+    private static final int MINUT_SPINNER_MIN_VAL = 0;
+    private static final int MINUT_SPINNER_MAX_VAL = 59;
+    private static final int AMPM_SPINNER_MIN_VAL = 0;
+    private static final int AMPM_SPINNER_MAX_VAL = 1;
+
+    //初始化控件
+    //NumberPicker是数字选择器
+    //这里定义的四个变量全部是在设置闹钟时需要选择的变量（如日期、时、分、上午或者下午）
+    private final NumberPicker mDateSpinner;
+    private final NumberPicker mHourSpinner;
+    private final NumberPicker mMinuteSpinner;
+    private final NumberPicker mAmPmSpinner;
+
+    //定义了Calendar类型的变量mDate，用于操作时间
+    private Calendar mDate;
+
+
+    private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
+
+    private boolean mIsAm;
+
+    private boolean mIs24HourView;
+
+    private boolean mIsEnabled = DEFAULT_ENABLE_STATE;
+
+    private boolean mInitialising;
+
+    private OnDateTimeChangedListener mOnDateTimeChangedListener;
+
+
+    //OnValueChangeListener，这是时间改变监听器，这里主要是对日期的监听
+    //将现在日期的值传递给mDate
+    // updateDateControl()是同步操作
+    // onDateTimeChanged()是当事件发生改变时发出信号，并传递事件
+    private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
+        @Override
+        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+            mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);
+            updateDateControl();
+            onDateTimeChanged();
+        }
+    };
+
+
+    //对小时（Hour）的监听
+    private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
+        @Override
+        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+            boolean isDateChanged = false;
+            //声明一个Calendar的变量cal,便于后续的操作
+            Calendar cal = Calendar.getInstance();
+            if (!mIs24HourView) {
+
+                //这里是对于12小时制时，晚上11点和12点交替时对日期的更改
+                if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
+                    cal.setTimeInMillis(mDate.getTimeInMillis());
+                    cal.add(Calendar.DAY_OF_YEAR, 1);
+                    isDateChanged = true;
+                }
+
+                //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改
+                else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
+                    cal.setTimeInMillis(mDate.getTimeInMillis());
+                    cal.add(Calendar.DAY_OF_YEAR, -1);
+                    isDateChanged = true;
+                }
+
+                //这里是对于12小时制时，中午11点和12点交替时对AM和PM的更改
+                if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
+                        oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
+                    mIsAm = !mIsAm;
+                    updateAmPmControl();
+                }
+            }
+
+            else {
+                //这里是对于24小时制时，晚上11点和12点交替时对日期的更改
+                if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
+                    cal.setTimeInMillis(mDate.getTimeInMillis());
+                    cal.add(Calendar.DAY_OF_YEAR, 1);
+                    isDateChanged = true;
+                }
+
+                //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改
+                else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
+                    cal.setTimeInMillis(mDate.getTimeInMillis());
+                    cal.add(Calendar.DAY_OF_YEAR, -1);
+                    isDateChanged = true;
+                }
+            }
+
+            //通过数字选择器对newHour的赋值
+            int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
+
+            //通过set函数将新的Hour值传给mDate
+            mDate.set(Calendar.HOUR_OF_DAY, newHour);
+
+            //时间选择对话框
+            onDateTimeChanged();
+            if (isDateChanged) {
+                setCurrentYear(cal.get(Calendar.YEAR));
+                setCurrentMonth(cal.get(Calendar.MONTH));
+                setCurrentDay(cal.get(Calendar.DAY_OF_MONTH));
+            }
+        }
+    };
+
+    private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
+
+        //这里是对 分钟（Minute）改变的监听
+        @Override
+        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+            int minValue = mMinuteSpinner.getMinValue();
+            int maxValue = mMinuteSpinner.getMaxValue();
+
+            //设置offset，作为小时改变的一个记录数据
+            int offset = 0;
+
+            //如果原值为59，新值为0，则offset加1
+            if (oldVal == maxValue && newVal == minValue) {
+                offset += 1;
+            }
+
+            //如果原值为0，新值为59，则offset减1
+            else if (oldVal == minValue && newVal == maxValue) {
+                offset -= 1;
+            }
+            if (offset != 0) {
+                mDate.add(Calendar.HOUR_OF_DAY, offset);
+                mHourSpinner.setValue(getCurrentHour());
+                updateDateControl();
+                int newHour = getCurrentHourOfDay();
+                if (newHour >= HOURS_IN_HALF_DAY) {
+                    mIsAm = false;
+                    updateAmPmControl();
+                } else {
+                    mIsAm = true;
+                    updateAmPmControl();
+                }
+            }
+            mDate.set(Calendar.MINUTE, newVal);
+            onDateTimeChanged();
+        }
+    };
+
+    private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
+
+        //对AM和PM的监听
+        @Override
+        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
+            mIsAm = !mIsAm;
+            if (mIsAm) {
+                mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
+            } else {
+                mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY);
+            }
+
+            // updateDateControl()是同步操作
+            // onDateTimeChanged()是当事件发生改变时发出信号，并传递事件
+            updateAmPmControl();
+            onDateTimeChanged();
+        }
+    };
+
+    //系统时间接口
+    public interface OnDateTimeChangedListener {
+        void onDateTimeChanged(DateTimePicker view, int year, int month,
+                int dayOfMonth, int hourOfDay, int minute);
+    }
+
+    //通过对数据库的访问，获取当前的系统时间
+    public DateTimePicker(Context context) {
+        this(context, System.currentTimeMillis());
+    }
+
+    //上面函数的得到的是一个天文数字（1970至今的秒数），需要DateFormat将其变得有意义
+    public DateTimePicker(Context context, long date) {
+        this(context, date, DateFormat.is24HourFormat(context));
+    }
+
+    public DateTimePicker(Context context, long date, boolean is24HourView) {
+        super(context);
+        //获取系统时间
+        mDate = Calendar.getInstance();
+        mInitialising = true;
+        mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
+
+
+        //如果当前Activity里用到别的layout，比如对话框layout
+        //还要设置这个layout上的其他组件的内容，就必须用inflate()方法先将对话框的layout找出来
+        //然后再用findViewById()找到它上面的其它组件
+        inflate(context, R.layout.datetime_picker, this);
+
+        mDateSpinner = (NumberPicker) findViewById(R.id.date);
+        mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);
+        mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);
+        mDateSpinner.setOnValueChangedListener(mOnDateChangedListener);
+
+        mHourSpinner = (NumberPicker) findViewById(R.id.hour);
+        mHourSpinner.setOnValueChangedListener(mOnHourChangedListener);
+        mMinuteSpinner =  (NumberPicker) findViewById(R.id.minute);
+        mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL);
+        mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL);
+        mMinuteSpinner.setOnLongPressUpdateInterval(100);
+        mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener);
+
+        String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();
+        mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);
+        mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
+        mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL);
+        mAmPmSpinner.setDisplayedValues(stringsForAmPm);
+        mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
+
+        // update controls to initial state
+        updateDateControl();
+        updateHourControl();
+        updateAmPmControl();
+
+        set24HourView(is24HourView);
+
+        // set to current time
+        setCurrentDate(date);
+
+        setEnabled(isEnabled());
+
+        // set the content descriptions
+        mInitialising = false;
+    }
+
+    //下面的代码通过原程序的注释已经比较清晰，另外可以通过函数名来判断
+    //下面的各函数主要是对上面代码引用到的各函数功能的实现
+    @Override
+    public void setEnabled(boolean enabled) {
+        if (mIsEnabled == enabled) {
+            return;
+        }
+        super.setEnabled(enabled);
+        mDateSpinner.setEnabled(enabled);
+        mMinuteSpinner.setEnabled(enabled);
+        mHourSpinner.setEnabled(enabled);
+        mAmPmSpinner.setEnabled(enabled);
+        mIsEnabled = enabled;
+    }
+
+    //实现函数——得到当前的秒数
+    @Override
+    public boolean isEnabled() {
+        return mIsEnabled;
+    }
+
+    /**
+     * Get the current date in millis
+     *
+     * @return the current date in millis
+     */
+    public long getCurrentDateInTimeMillis() {
+        return mDate.getTimeInMillis();
+    }
+
+    /**
+     * Set the current date
+     *
+     * @param date The current date in millis
+     */
+
+    //实现函数功能——设置当前的时间，参数是各详细的变量
+    public void setCurrentDate(long date) {
+        Calendar cal = Calendar.getInstance();
+        cal.setTimeInMillis(date);
+        setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH),
+                cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
+    }
+
+    /**
+     * Set the current date
+     *
+     * @param year The current year
+     * @param month The current month
+     * @param dayOfMonth The current dayOfMonth
+     * @param hourOfDay The current hourOfDay
+     * @param minute The current minute
+     */
+    public void setCurrentDate(int year, int month,
+            int dayOfMonth, int hourOfDay, int minute) {
+        setCurrentYear(year);
+        setCurrentMonth(month);
+        setCurrentDay(dayOfMonth);
+        setCurrentHour(hourOfDay);
+        setCurrentMinute(minute);
+    }
+
+    /**
+     * Get current year
+     *
+     * @return The current year
+     */
+
+    //得到year值
+    public int getCurrentYear() {
+        return mDate.get(Calendar.YEAR);
+    }
+
+    /**
+     * Set current year
+     *
+     * @param year The current year
+     */
+
+    //建立year值
+    public void setCurrentYear(int year) {
+        if (!mInitialising && year == getCurrentYear()) {
+            return;
+        }
+        mDate.set(Calendar.YEAR, year);
+        updateDateControl();
+        onDateTimeChanged();
+    }
+
+    /**
+     * Get current month in the year
+     *
+     * @return The current month in the year
+     */
+
+    //获取month值
+    public int getCurrentMonth() {
+        return mDate.get(Calendar.MONTH);
+    }
+
+    /**
+     * Set current month in the year
+     *
+     * @param month The month in the year
+     */
+
+    //建立month值
+    public void setCurrentMonth(int month) {
+        if (!mInitialising && month == getCurrentMonth()) {
+            return;
+        }
+        mDate.set(Calendar.MONTH, month);
+        updateDateControl();
+        onDateTimeChanged();
+    }
+
+    /**
+     * Get current day of the month
+     *
+     * @return The day of the month
+     */
+
+    //获取day值
+    public int getCurrentDay() {
+        return mDate.get(Calendar.DAY_OF_MONTH);
+    }
+
+    /**
+     * Set current day of the month
+     *
+     * @param dayOfMonth The day of the month
+     */
+
+    //建立day值
+    public void setCurrentDay(int dayOfMonth) {
+        if (!mInitialising && dayOfMonth == getCurrentDay()) {
+            return;
+        }
+        mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
+        updateDateControl();
+        onDateTimeChanged();
+    }
+
+    /**
+     * Get current hour in 24 hour mode, in the range (0~23)
+     * @return The current hour in 24 hour mode
+     */
+    //获取当前hour值
+    public int getCurrentHourOfDay() {
+        return mDate.get(Calendar.HOUR_OF_DAY);
+    }
+
+    //获取hour值
+    private int getCurrentHour() {
+        if (mIs24HourView){
+            return getCurrentHourOfDay();
+        } else {
+            int hour = getCurrentHourOfDay();
+            if (hour > HOURS_IN_HALF_DAY) {
+                return hour - HOURS_IN_HALF_DAY;
+            } else {
+                return hour == 0 ? HOURS_IN_HALF_DAY : hour;
+            }
+        }
+    }
+
+    /**
+     * Set current hour in 24 hour mode, in the range (0~23)
+     *
+     * @param hourOfDay
+     */
+    //建立hour值
+    public void setCurrentHour(int hourOfDay) {
+        if (!mInitialising && hourOfDay == getCurrentHourOfDay()) {
+            return;
+        }
+        mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
+        if (!mIs24HourView) {
+            if (hourOfDay >= HOURS_IN_HALF_DAY) {
+                mIsAm = false;
+                if (hourOfDay > HOURS_IN_HALF_DAY) {
+                    hourOfDay -= HOURS_IN_HALF_DAY;
+                }
+            } else {
+                mIsAm = true;
+                if (hourOfDay == 0) {
+                    hourOfDay = HOURS_IN_HALF_DAY;
+                }
+            }
+            updateAmPmControl();
+        }
+        mHourSpinner.setValue(hourOfDay);
+        onDateTimeChanged();
+    }
+
+    /**
+     * Get currentMinute
+     *
+     * @return The Current Minute
+     */
+    //获取minute值
+    public int getCurrentMinute() {
+        return mDate.get(Calendar.MINUTE);
+    }
+
+    /**
+     * Set current minute
+     */
+
+    //建立minute值
+    public void setCurrentMinute(int minute) {
+        if (!mInitialising && minute == getCurrentMinute()) {
+            return;
+        }
+        mMinuteSpinner.setValue(minute);
+        mDate.set(Calendar.MINUTE, minute);
+        onDateTimeChanged();
+    }
+
+    /**
+     * @return true if this is in 24 hour view else false.
+     */
+    public boolean is24HourView () {
+        return mIs24HourView;
+    }
+
+    /**
+     * Set whether in 24 hour or AM/PM mode.
+     *
+     * @param is24HourView True for 24 hour mode. False for AM/PM mode.
+     */
+    public void set24HourView(boolean is24HourView) {
+        if (mIs24HourView == is24HourView) {
+            return;
+        }
+        mIs24HourView = is24HourView;
+        mAmPmSpinner.setVisibility(is24HourView ? View.GONE : View.VISIBLE);
+        int hour = getCurrentHourOfDay();
+        updateHourControl();
+        setCurrentHour(hour);
+        updateAmPmControl();
+    }
+
+    //建立星期几的算法
+    private void updateDateControl() {
+        Calendar cal = Calendar.getInstance();
+        cal.setTimeInMillis(mDate.getTimeInMillis());
+        cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1);
+        mDateSpinner.setDisplayedValues(null);
+        for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) {
+            cal.add(Calendar.DAY_OF_YEAR, 1);
+            mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal);
+        }
+        mDateSpinner.setDisplayedValues(mDateDisplayValues);
+        mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2);
+        mDateSpinner.invalidate();
+    }
+
+    //建立AM,PM的算法
+    private void updateAmPmControl() {
+        if (mIs24HourView) {
+            mAmPmSpinner.setVisibility(View.GONE);
+        } else {
+            int index = mIsAm ? Calendar.AM : Calendar.PM;
+            mAmPmSpinner.setValue(index);
+            mAmPmSpinner.setVisibility(View.VISIBLE);
+        }
+    }
+
+
+    //建立小时的算法
+    private void updateHourControl() {
+        if (mIs24HourView) {
+            mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);
+            mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW);
+        } else {
+            mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW);
+            mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW);
+        }
+    }
+
+    /**
+     * Set the callback that indicates the 'Set' button has been pressed.
+     * @param callback the callback, if null will do nothing
+     */
+    public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) {
+        mOnDateTimeChangedListener = callback;
+    }
+
+    private void onDateTimeChanged() {
+        if (mOnDateTimeChangedListener != null) {
+            mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
+                    getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
+        }
+    }
+}

other/07_210340169_薛傲翔_代码标注/精读UI包/DateTimePickerDialog.java

@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+
+//前面几个UI包注释了这几个头文件的内容
+import java.util.Calendar;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.DateTimePicker;
+import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;   //取消对话框的构造器运行
+import android.content.DialogInterface.OnClickListener;
+import android.text.format.DateFormat;
+import android.text.format.DateUtils;
+
+public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
+
+    //创建一个Calendar类型的变量 mDate，方便时间的操作
+    private Calendar mDate = Calendar.getInstance();
+    private boolean mIs24HourView;
+
+    //声明一个时间日期滚动选择控件 mOnDateTimeSetListener
+    private OnDateTimeSetListener mOnDateTimeSetListener;
+
+    //DateTimePicker控件，控件一般用于让用户可以从日期列表中选择单个值。
+    //运行时，单击控件边上的下拉箭头，会显示为两个部分：一个下拉列表，一个用于选择日期的
+    private DateTimePicker mDateTimePicker;
+
+    public interface OnDateTimeSetListener {
+        void OnDateTimeSet(AlertDialog dialog, long date);
+    }
+
+    //对该界面对话框的实例化
+    public DateTimePickerDialog(Context context, long date) {
+
+        //对数据库的操作
+        super(context);
+        mDateTimePicker = new DateTimePicker(context);
+
+        //添加一个子视图
+        setView(mDateTimePicker);
+        mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
+            public void onDateTimeChanged(DateTimePicker view, int year, int month,
+                    int dayOfMonth, int hourOfDay, int minute) {
+
+                //将视图中的各选项设置为系统当前时间
+                mDate.set(Calendar.YEAR, year);
+                mDate.set(Calendar.MONTH, month);
+                mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
+                mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
+                mDate.set(Calendar.MINUTE, minute);
+                updateTitle(mDate.getTimeInMillis());
+            }
+        });
+
+        //得到系统时间
+        mDate.setTimeInMillis(date);
+
+        //将秒数设置为0
+        mDate.set(Calendar.SECOND, 0);
+        mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
+
+        //设置两个按钮
+        setButton(context.getString(R.string.datetime_dialog_ok), this);
+        setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
+
+        set24HourView(DateFormat.is24HourFormat(this.getContext()));
+
+        //时间标准化打印
+        updateTitle(mDate.getTimeInMillis());
+    }
+
+    public void set24HourView(boolean is24HourView) {
+        mIs24HourView = is24HourView;
+    }
+
+    //将时间日期滚动选择控件实例化
+    public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
+        mOnDateTimeSetListener = callBack;
+    }
+
+
+    //android开发中常见日期管理工具类（API）——DateUtils：按照上下午显示时间
+    private void updateTitle(long date) {
+        int flag =
+            DateUtils.FORMAT_SHOW_YEAR |
+            DateUtils.FORMAT_SHOW_DATE |
+            DateUtils.FORMAT_SHOW_TIME;
+        flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
+        setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
+    }
+
+
+    //第一个参数arg0是接收到点击事件的对话框
+    //第二个参数arg1是该对话框上的按钮
+    public void onClick(DialogInterface arg0, int arg1) {
+        if (mOnDateTimeSetListener != null) {
+            mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
+        }
+    }
+
+}

other/07_210340169_薛傲翔_代码标注/精读UI包/DropdownMenu.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.view.Menu;   //菜单组件
+import android.view.MenuItem;   //菜单通用项
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+import android.widget.PopupMenu;
+import android.widget.PopupMenu.OnMenuItemClickListener;
+
+import net.micode.notes.R;
+
+public class DropdownMenu {
+    private Button mButton;
+
+    //声明一个下拉菜单
+    private PopupMenu mPopupMenu;
+    private Menu mMenu;
+
+    public DropdownMenu(Context context, Button button, int menuId) {
+        mButton = button;
+        mButton.setBackgroundResource(R.drawable.dropdown_icon);
+
+        //设置这个view的背景
+        mPopupMenu = new PopupMenu(context, mButton);
+        mMenu = mPopupMenu.getMenu();
+
+        //MenuInflater是用来实例化Menu目录下的Menu布局文件
+        //根据ID来确认menu的内容选项
+        mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
+        mButton.setOnClickListener(new OnClickListener() {
+            public void onClick(View v) {
+                mPopupMenu.show();
+            }
+        });
+    }
+
+    //设置菜单的监听
+    public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
+        if (mPopupMenu != null) {
+            mPopupMenu.setOnMenuItemClickListener(listener);
+        }
+    }
+
+    //对于菜单选项的初始化，根据索引搜索菜单需要的选项
+    public MenuItem findItem(int id) {
+        return mMenu.findItem(id);
+    }
+
+
+    //布局文件，设置标题
+    public void setTitle(CharSequence title) {
+        mButton.setText(title);
+    }
+}

other/07_210340169_薛傲翔_代码标注/精读UI包/FoldersListAdapter.java

@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CursorAdapter;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+
+
+//CursorAdapter是Cursor和ListView的接口
+//FoldersListAdapter继承了CursorAdapter的类
+//主要作用是便签数据库和用户的交互
+//这里就是用folder（文件夹）的形式展现给用户
+public class FoldersListAdapter extends CursorAdapter {
+
+    //调用数据库中便签的ID和片段
+    public static final String [] PROJECTION = {
+        NoteColumns.ID,
+        NoteColumns.SNIPPET
+    };
+
+    public static final int ID_COLUMN   = 0;
+    public static final int NAME_COLUMN = 1;
+
+    //数据库操作
+    public FoldersListAdapter(Context context, Cursor c) {
+        super(context, c);
+        // TODO Auto-generated constructor stub
+    }
+
+    //将各个布局文件绑定起来
+    @Override
+    public View newView(Context context, Cursor cursor, ViewGroup parent) {
+        return new FolderListItem(context);
+    }
+
+    @Override
+    public void bindView(View view, Context context, Cursor cursor) {
+        if (view instanceof FolderListItem) {
+            String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
+                    .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
+            ((FolderListItem) view).bind(folderName);
+        }
+    }
+
+    //根据数据库中标签的ID得到标签的各项内容
+    public String getFolderName(Context context, int position) {
+        Cursor cursor = (Cursor) getItem(position);
+        return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
+                .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
+    }
+
+    private class FolderListItem extends LinearLayout {
+        private TextView mName;
+
+        public FolderListItem(Context context) {
+
+            //操作数据库
+            super(context);
+
+            //根据布局文件的名字等信息将其找出来
+            inflate(context, R.layout.folder_list_item, this);
+            mName = (TextView) findViewById(R.id.tv_folder_name);
+        }
+
+        public void bind(String name) {
+            mName.setText(name);
+        }
+    }
+
+}

other/07_210340169_薛傲翔_代码标注/精读UI包/NoteEditText.java

@@ -0,0 +1,292 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.text.Layout;
+import android.text.Selection;
+import android.text.Spanned;
+import android.text.TextUtils;
+import android.text.style.URLSpan;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.ContextMenu;
+import android.view.KeyEvent;
+import android.view.MenuItem;
+import android.view.MenuItem.OnMenuItemClickListener;
+import android.view.MotionEvent;
+import android.widget.EditText;
+
+import net.micode.notes.R;
+
+import java.util.HashMap;
+import java.util.Map;
+
+//继承edittext，设置便签设置文本框
+public class NoteEditText extends EditText {
+    private static final String TAG = "NoteEditText";
+    private int mIndex;
+    private int mSelectionStartBeforeDelete;
+
+    private static final String SCHEME_TEL = "tel:" ;
+    private static final String SCHEME_HTTP = "http:" ;
+    private static final String SCHEME_EMAIL = "mailto:" ;
+
+    //建立一个字符和整数的hash表，用于链接电话，网站，还有邮箱
+    private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
+    static {
+        sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
+        sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web);
+        sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email);
+    }
+
+    /**
+     * Call by the {@link NoteEditActivity} to delete or add edit text
+     */
+    //在NoteEditActivity中删除或添加文本的操作，可以看做是一个文本是否被变的标记，英文注释已说明
+    public interface OnTextViewChangeListener {
+        /**
+         * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
+         * and the text is null
+         */
+        //处理删除按键时的操作
+        void onEditTextDelete(int index, String text);
+
+        /**
+         * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
+         * happen
+         */
+        //处理进入按键时的操作
+        void onEditTextEnter(int index, String text);
+
+        /**
+         * Hide or show item option when text change
+         */
+        void onTextChange(int index, boolean hasText);
+    }
+
+    private OnTextViewChangeListener mOnTextViewChangeListener;
+
+    //根据context设置文本
+    public NoteEditText(Context context) {
+        //用super引用父类变量
+        super(context, null);
+        mIndex = 0;
+    }
+
+    //设置当前光标
+    public void setIndex(int index) {
+        mIndex = index;
+    }
+
+    //初始化文本修改标记
+    public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
+        mOnTextViewChangeListener = listener;
+    }
+
+    //AttributeSet用于维护便签动态变化的属性
+    //初始化便签
+    public NoteEditText(Context context, AttributeSet attrs) {
+        super(context, attrs, android.R.attr.editTextStyle);
+    }
+
+    // 根据defstyle自动初始化
+    public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        // TODO Auto-generated constructor stub
+    }
+
+//view里的函数，处理手机屏幕的所有事件
+    /*参数event为手机屏幕触摸事件封装类的对象，其中封装了该事件的所有信息，
+                例如触摸的位置、触摸的类型以及触摸的时间等。该对象会在用户触摸手机屏幕时被创建*/
+//重写了需要处理屏幕被按下的事件
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        switch (event.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+
+                //更新当前坐标值
+                int x = (int) event.getX();
+                int y = (int) event.getY();
+                x -= getTotalPaddingLeft();
+                y -= getTotalPaddingTop();
+                x += getScrollX();
+                y += getScrollY();
+
+                //用布局控件layout根据x,y的新值设置新的位置
+                Layout layout = getLayout();
+                int line = layout.getLineForVertical(y);
+                int off = layout.getOffsetForHorizontal(line, x);
+
+                //更新光标新的位置
+                Selection.setSelection(getText(), off);
+                break;
+        }
+
+        return super.onTouchEvent(event);
+    }
+
+    /*
+     * 函数功能：处理用户按下一个键盘按键时会触发的事件
+     * 实现过程：如下注释
+     */
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        //根据按键的 Unicode 编码值来处理
+        switch (keyCode) {
+            //“进入”按键
+            case KeyEvent.KEYCODE_ENTER:
+                if (mOnTextViewChangeListener != null) {
+                    return false;
+                }
+                break;
+            //“删除”按键
+            case KeyEvent.KEYCODE_DEL:
+                mSelectionStartBeforeDelete = getSelectionStart();
+                break;
+            default:
+                break;
+        }
+        //继续执行父类的其他点击事件
+        return super.onKeyDown(keyCode, event);
+    }
+
+    /*
+     * 函数功能：处理用户松开一个键盘按键时会触发 的事件
+     * 实现方式：如下注释
+     */
+    @Override
+    public boolean onKeyUp(int keyCode, KeyEvent event) {
+        //根据按键的 Unicode 编码值来处理，有删除和进入2种操作
+        switch(keyCode) {
+            case KeyEvent.KEYCODE_DEL:
+                //若是被修改过
+                if (mOnTextViewChangeListener != null) {
+                    //若之前有被修改并且文档不为空
+                    if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
+                        //利用上文OnTextViewChangeListener对KEYCODE_DEL按键情况的删除函数进行删除
+                        mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
+                        return true;
+                    }
+                }
+
+                //其他情况报错，文档的改动监听器并没有建立
+                else {
+                    Log.d(TAG, "OnTextViewChangeListener was not seted");
+                }
+                break;
+            //同上也是分为监听器是否建立2种情况
+            case KeyEvent.KEYCODE_ENTER:
+                if (mOnTextViewChangeListener != null) {
+                    //获取当前位置
+                    int selectionStart = getSelectionStart();
+                    //获取当前文本
+                    String text = getText().subSequence(selectionStart, length()).toString();
+                    //根据获取的文本设置当前文本
+                    setText(getText().subSequence(0, selectionStart));
+                    mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);
+                }
+
+                //其他情况报错，文档的改动监听器并没有建立
+                else {
+                    Log.d(TAG, "OnTextViewChangeListener was not seted");
+                }
+                break;
+            default:
+                break;
+        }
+        //继续执行父类的其他按键弹起的事件
+        return super.onKeyUp(keyCode, event);
+    }
+
+    @Override
+    /*
+     * 函数功能：当焦点发生变化时，会自动调用该方法来处理焦点改变的事件
+     * 实现方式：如下注释
+     * 参数：focused表示触发该事件的View是否获得了焦点，当该控件获得焦点时，Focused等于true，否则等于false。
+           direction表示焦点移动的方向，用数值表示
+           Rect：表示在触发事件的View的坐标系中，前一个获得焦点的矩形区域，即表示焦点是从哪里来的。如果不可用则为null
+     */
+    protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
+
+        //若监听器已经建立
+        if (mOnTextViewChangeListener != null) {
+            //获取到焦点并且文本不为空
+            if (!focused && TextUtils.isEmpty(getText())) {
+                //mOnTextViewChangeListener子函数，置false隐藏事件选项
+                mOnTextViewChangeListener.onTextChange(mIndex, false);
+            } else {
+                //mOnTextViewChangeListener子函数，置true显示事件选项
+                mOnTextViewChangeListener.onTextChange(mIndex, true);
+            }
+        }
+        //继续执行父类的其他焦点变化的事件
+        super.onFocusChanged(focused, direction, previouslyFocusedRect);
+    }
+
+    /*
+     * 函数功能：生成上下文菜单
+     * 函数实现：如下注释
+     */
+    @Override
+    protected void onCreateContextMenu(ContextMenu menu) {
+        //有文本存在
+        if (getText() instanceof Spanned) {
+            //获取文本开始和结尾位置
+            int selStart = getSelectionStart();
+            int selEnd = getSelectionEnd();
+
+            //获取开始到结尾的最大值和最小值
+            int min = Math.min(selStart, selEnd);
+            int max = Math.max(selStart, selEnd);
+
+            //设置url的信息的范围值
+            final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
+            if (urls.length == 1) {
+                int defaultResId = 0;
+                //获取计划表中所有的key值
+                for(String schema: sSchemaActionResMap.keySet()) {
+                    //若url可以添加则在添加后将defaultResId置为key所映射的值
+                    if(urls[0].getURL().indexOf(schema) >= 0) {
+                        defaultResId = sSchemaActionResMap.get(schema);
+                        break;
+                    }
+                }
+
+                //defaultResId == 0则说明url并没有添加任何东西，所以置为连接其他SchemaActionResMap的值
+                if (defaultResId == 0) {
+                    defaultResId = R.string.note_link_other;
+                }
+
+                //建立菜单
+                menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
+                        //新建按键监听器
+                        new OnMenuItemClickListener() {
+                            public boolean onMenuItemClick(MenuItem item) {
+                                // goto a new intent
+                                //根据相应的文本设置菜单的按键
+                                urls[0].onClick(NoteEditText.this);
+                                return true;
+                            }
+                        });
+            }
+        }
+        //继续执行父类的其他菜单创建的事件
+        super.onCreateContextMenu(menu);
+    }
+}

other/07_210340170_薛皓天_代码标注/精读 data gtask/data/Contact.java

@@ -26,9 +26,11 @@ import android.util.Log;
 import java.util.HashMap;
 
 public class Contact {
+    // 建立
     private static HashMap<String, String> sContactCache;
     private static final String TAG = "Contact";
 
+    // 来电显示选择
     private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER
     + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
     + " AND " + Data.RAW_CONTACT_ID + " IN "
@@ -36,17 +38,21 @@ public class Contact {
             + " FROM phone_lookup"
             + " WHERE min_match = '+')";
 
+    // 获得连接
     public static String getContact(Context context, String phoneNumber) {
+        // 哈希表为空新建哈希表
         if(sContactCache == null) {
             sContactCache = new HashMap<String, String>();
         }
-
+        // 在哈希表中查找电话号码
         if(sContactCache.containsKey(phoneNumber)) {
             return sContactCache.get(phoneNumber);
         }
 
         String selection = CALLER_ID_SELECTION.replace("+",
                 PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
+
+        // 建立一个用户
         Cursor cursor = context.getContentResolver().query(
                 Data.CONTENT_URI,
                 new String [] { Phone.DISPLAY_NAME },
@@ -54,6 +60,8 @@ public class Contact {
                 new String[] { phoneNumber },
                 null);
 
+
+        // 添加任务
         if (cursor != null && cursor.moveToFirst()) {
             try {
                 String name = cursor.getString(0);

other/07_210340170_薛皓天_代码标注/精读 data gtask/data/Notes.java

@@ -30,16 +30,29 @@ public class Notes {
      * {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder
      * {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
      */
-    public static final int ID_ROOT_FOLDER = 0;
+
-    public static final int ID_TEMPARAY_FOLDER = -1;
+    // id是系统文件夹的标识符
-    public static final int ID_CALL_RECORD_FOLDER = -2;
+    public static final int ID_ROOT_FOLDER = 0;// 标识默认文件夹
+    public static final int ID_TEMPARAY_FOLDER = -1;// 标识不属于文件夹的笔记
+    public static final int ID_CALL_RECORD_FOLDER = -2;// 用于存储通话记录
     public static final int ID_TRASH_FOLER = -3;
 
+    // 通知日期
     public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";
+
+    // 背景颜色id
     public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";
+
+    // 小部件id
     public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";
+
+    // 小部件类型
     public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";
+
+    // 文件id
     public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";
+
+    // 调用日期
     public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date";
 
     public static final int TYPE_WIDGET_INVALIDE      = -1;
@@ -54,36 +67,47 @@ public class Notes {
     /**
      * Uri to query all notes and folders
      */
+    // 查询所有笔记和文件夹
     public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
 
     /**
      * Uri to query data
      */
+    // 查询数据
     public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
 
+    // NoteColumns 接口用于创建数据库
     public interface NoteColumns {
         /**
          * The unique ID for a row
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 对于一行唯一的ID
         public static final String ID = "_id";
 
         /**
          * The parent's id for note or folder
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 笔记或文件夹的父级id
         public static final String PARENT_ID = "parent_id";
 
         /**
          * Created data for note or folder
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 创建数据对于便签和文件
         public static final String CREATED_DATE = "created_date";
 
         /**
          * Latest modified date
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 最新修改日期
         public static final String MODIFIED_DATE = "modified_date";
 
 
@@ -91,30 +115,43 @@ public class Notes {
          * Alert date
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 警报日期
         public static final String ALERTED_DATE = "alert_date";
 
         /**
          * Folder's name or text content of note
          * <P> Type: TEXT </P>
          */
+
+
+        // 文件夹的名称或注意的文本内容
         public static final String SNIPPET = "snippet";
 
         /**
          * Note's widget id
          * <P> Type: INTEGER (long) </P>
          */
+
+
+        // 便签的小部件ID
         public static final String WIDGET_ID = "widget_id";
 
         /**
          * Note's widget type
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 便签的小部件类型
         public static final String WIDGET_TYPE = "widget_type";
 
         /**
          * Note's background color's id
          * <P> Type: INTEGER (long) </P>
          */
+
+
+        // 便签的背景颜色ID
         public static final String BG_COLOR_ID = "bg_color_id";
 
         /**
@@ -122,86 +159,120 @@ public class Notes {
          * note, it has at least one attachment
          * <P> Type: INTEGER </P>
          */
+
+
+        // 对于文本笔记，它没有附件，对于多媒体笔记，它至少有一个附件
         public static final String HAS_ATTACHMENT = "has_attachment";
 
         /**
          * Folder's count of notes
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 文件夹的注释计数
         public static final String NOTES_COUNT = "notes_count";
 
         /**
          * The file type: folder or note
          * <P> Type: INTEGER </P>
          */
+
+        // 文件类型
         public static final String TYPE = "type";
 
         /**
          * The last sync id
          * <P> Type: INTEGER (long) </P>
          */
+
+
+        // 最终同步id
         public static final String SYNC_ID = "sync_id";
 
         /**
          * Sign to indicate local modified or not
          * <P> Type: INTEGER </P>
          */
+
+        // 表示本地是否修改
         public static final String LOCAL_MODIFIED = "local_modified";
 
         /**
          * Original parent id before moving into temporary folder
          * <P> Type : INTEGER </P>
          */
+
+        // 表示移动到临时文件夹前的原始父id
         public static final String ORIGIN_PARENT_ID = "origin_parent_id";
 
         /**
          * The gtask id
          * <P> Type : TEXT </P>
          */
+
+        // 表示gtask id
         public static final String GTASK_ID = "gtask_id";
 
         /**
          * The version code
          * <P> Type : INTEGER (long) </P>
          */
+
+        // 表示版本代码
         public static final String VERSION = "version";
     }
 
+    // 定义接口DataColumns 存储数据库数据
     public interface DataColumns {
         /**
          * The unique ID for a row
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 对于一行唯一的ID
         public static final String ID = "_id";
 
         /**
          * The MIME type of the item represented by this row.
          * <P> Type: Text </P>
          */
+
+        // 表示项目的MIME类型
         public static final String MIME_TYPE = "mime_type";
 
         /**
          * The reference id to note that this data belongs to
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 指明便签id的所属
         public static final String NOTE_ID = "note_id";
 
         /**
          * Created data for note or folder
          * <P> Type: INTEGER (long) </P>
          */
+
+
+        // 创建数据便签和文件夹
         public static final String CREATED_DATE = "created_date";
 
         /**
          * Latest modified date
          * <P> Type: INTEGER (long) </P>
          */
+
+
+        // 最新修改信息
         public static final String MODIFIED_DATE = "modified_date";
 
         /**
          * Data's content
          * <P> Type: TEXT </P>
          */
+
+
+        // 数据正文
         public static final String CONTENT = "content";
 
 
@@ -210,6 +281,8 @@ public class Notes {
          * integer data type
          * <P> Type: INTEGER </P>
          */
+
+        // 泛型数据类，用于整形数据
         public static final String DATA1 = "data1";
 
         /**
@@ -217,6 +290,8 @@ public class Notes {
          * integer data type
          * <P> Type: INTEGER </P>
          */
+
+        // 泛型数据类，用于整形数据同data1
         public static final String DATA2 = "data2";
 
         /**
@@ -224,6 +299,8 @@ public class Notes {
          * TEXT data type
          * <P> Type: TEXT </P>
          */
+
+        // 泛型数据类，用于文本型数据
         public static final String DATA3 = "data3";
 
         /**
@@ -231,6 +308,8 @@ public class Notes {
          * TEXT data type
          * <P> Type: TEXT </P>
          */
+
+        // 泛型数据类，用于文本型数据
         public static final String DATA4 = "data4";
 
         /**
@@ -238,15 +317,20 @@ public class Notes {
          * TEXT data type
          * <P> Type: TEXT </P>
          */
+
+        // 泛型数据类，用于文本型数据
         public static final String DATA5 = "data5";
     }
 
+    // TextNote 需要使用使用implements调用DataColumns接口
     public static final class TextNote implements DataColumns {
         /**
          * Mode to indicate the text in check list mode or not
          * <P> Type: Integer 1:check list mode 0: normal mode </P>
          */
-        public static final String MODE = DATA1;
+
+        // 使用泛型数据类型查找是否处于列表模式
+        public static final String MODE = DATA2;
 
         public static final int MODE_CHECK_LIST = 1;
 
@@ -257,17 +341,22 @@ public class Notes {
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
     }
 
+    // CallNote 使用implements调用DataColumns接口
     public static final class CallNote implements DataColumns {
         /**
          * Call date for this record
          * <P> Type: INTEGER (long) </P>
          */
+
+        // 记录呼叫的日期
         public static final String CALL_DATE = DATA1;
 
         /**
          * Phone number for this record
          * <P> Type: TEXT </P>
          */
+
+        // 记录呼叫号码
         public static final String PHONE_NUMBER = DATA3;
 
         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";

other/07_210340170_薛皓天_代码标注/精读 data gtask/data/NotesDatabaseHelper.java

@@ -26,7 +26,7 @@ import net.micode.notes.data.Notes.DataColumns;
 import net.micode.notes.data.Notes.DataConstants;
 import net.micode.notes.data.Notes.NoteColumns;
 
-
+// NotesDatabaseHelper 继承 SQLiteOpenHelper 对数据库各种框架的完善
 public class NotesDatabaseHelper extends SQLiteOpenHelper {
     private static final String DB_NAME = "note.db";
 
@@ -85,6 +85,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Increase folder's note count when move note to the folder
      */
+    // 增加文件夹的笔记计数时，移动笔记到文件夹
     private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
         "CREATE TRIGGER increase_folder_count_on_update "+
         " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
@@ -97,6 +98,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Decrease folder's note count when move note from folder
      */
+    // 从文件夹移动笔记时减少文件夹的笔记数
     private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
         "CREATE TRIGGER decrease_folder_count_on_update " +
         " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
@@ -110,6 +112,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Increase folder's note count when insert new note to the folder
      */
+    // 增加文件夹的笔记计数时，插入新的笔记到文件夹
     private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
         "CREATE TRIGGER increase_folder_count_on_insert " +
         " AFTER INSERT ON " + TABLE.NOTE +
@@ -122,6 +125,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Decrease folder's note count when delete note from the folder
      */
+    // 从文件夹中删除笔记时，减少文件夹的笔记计数
     private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
         "CREATE TRIGGER decrease_folder_count_on_delete " +
         " AFTER DELETE ON " + TABLE.NOTE +
@@ -135,6 +139,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Update note's content when insert data with type {@link DataConstants#NOTE}
      */
+    // 当插入带有类型的数据时，更新注释的内容
     private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
         "CREATE TRIGGER update_note_content_on_insert " +
         " AFTER INSERT ON " + TABLE.DATA +
@@ -148,6 +153,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Update note's content when data with {@link DataConstants#NOTE} type has changed
      */
+
+    // 当数据类型发生变化时，更新注释的内容
     private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
         "CREATE TRIGGER update_note_content_on_update " +
         " AFTER UPDATE ON " + TABLE.DATA +
@@ -161,6 +168,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Update note's content when data with {@link DataConstants#NOTE} type has deleted
      */
+
+    // 当类型的数据被删除时，更新注释的内容
     private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
         "CREATE TRIGGER update_note_content_on_delete " +
         " AFTER delete ON " + TABLE.DATA +
@@ -174,6 +183,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Delete datas belong to note which has been deleted
      */
+
+    // 删除数据属于已删除的备注
     private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
         "CREATE TRIGGER delete_data_on_delete " +
         " AFTER DELETE ON " + TABLE.NOTE +
@@ -185,6 +196,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Delete notes belong to folder which has been deleted
      */
+
+    // 删除笔记属于已删除的文件夹
     private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
         "CREATE TRIGGER folder_delete_notes_on_delete " +
         " AFTER DELETE ON " + TABLE.NOTE +
@@ -196,6 +209,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
     /**
      * Move notes belong to folder which has been moved to trash folder
      */
+
+    // 移动笔记属于已移动到垃圾文件夹的文件夹
     private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
         "CREATE TRIGGER folder_move_notes_on_trash " +
         " AFTER UPDATE ON " + TABLE.NOTE +
@@ -206,10 +221,12 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         "  WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
         " END";
 
+    // 构造函数
     public NotesDatabaseHelper(Context context) {
         super(context, DB_NAME, null, DB_VERSION);
     }
 
+    // 创建笔记数据库
     public void createNoteTable(SQLiteDatabase db) {
         db.execSQL(CREATE_NOTE_TABLE_SQL);
         reCreateNoteTableTriggers(db);
@@ -217,6 +234,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         Log.d(TAG, "note table has been created");
     }
 
+    // 重新创建笔记触发器
     private void reCreateNoteTableTriggers(SQLiteDatabase db) {
         db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update");
         db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update");
@@ -235,12 +253,15 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER);
     }
 
+    // 创建系统文件夹
     private void createSystemFolder(SQLiteDatabase db) {
         ContentValues values = new ContentValues();
 
         /**
          * call record foler for call notes
          */
+
+        // 通话记录记录器
         values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
         db.insert(TABLE.NOTE, null, values);
@@ -248,6 +269,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         /**
          * root folder which is default folder
          */
+
+        // 创建根文件夹
         values.clear();
         values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
@@ -256,6 +279,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         /**
          * temporary folder which is used for moving note
          */
+
+        // 创建用于移动笔记的临时文件夹
         values.clear();
         values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
@@ -264,12 +289,15 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         /**
          * create trash folder
          */
+
+        // 创建垃圾文件夹
         values.clear();
         values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
         db.insert(TABLE.NOTE, null, values);
     }
 
+    // 创建数据的数据库
     public void createDataTable(SQLiteDatabase db) {
         db.execSQL(CREATE_DATA_TABLE_SQL);
         reCreateDataTableTriggers(db);
@@ -277,6 +305,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         Log.d(TAG, "data table has been created");
     }
 
+    // 重新创建数据数据库的触发器
     private void reCreateDataTableTriggers(SQLiteDatabase db) {
         db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert");
         db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update");
@@ -287,6 +316,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER);
     }
 
+
+    // 静态同步锁 保证进程获取资源的稳定性
     static synchronized NotesDatabaseHelper getInstance(Context context) {
         if (mInstance == null) {
             mInstance = new NotesDatabaseHelper(context);
@@ -294,35 +325,42 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         return mInstance;
     }
 
-    @Override
+    @Override // 用于指定方法重写
+    // 创建两个数据库
     public void onCreate(SQLiteDatabase db) {
         createNoteTable(db);
         createDataTable(db);
     }
 
+
     @Override
+    // 更新数据库信息
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
         boolean reCreateTriggers = false;
         boolean skipV2 = false;
 
         if (oldVersion == 1) {
+            // 更新至V2
             upgradeToV2(db);
             skipV2 = true; // this upgrade including the upgrade from v2 to v3
             oldVersion++;
         }
 
         if (oldVersion == 2 && !skipV2) {
+            // 更新至V3
             upgradeToV3(db);
             reCreateTriggers = true;
             oldVersion++;
         }
 
         if (oldVersion == 3) {
+            // 更新至V4
             upgradeToV4(db);
             oldVersion++;
         }
 
         if (reCreateTriggers) {
+            // 触发触发器
             reCreateNoteTableTriggers(db);
             reCreateDataTableTriggers(db);
         }
@@ -333,6 +371,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         }
     }
 
+    // 更新V2的操作
     private void upgradeToV2(SQLiteDatabase db) {
         db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE);
         db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
@@ -340,6 +379,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         createDataTable(db);
     }
 
+    // 更新V3的操作
     private void upgradeToV3(SQLiteDatabase db) {
         // drop unused triggers
         db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert");
@@ -355,6 +395,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.insert(TABLE.NOTE, null, values);
     }
 
+
+    // 更新至V4的操作
     private void upgradeToV4(SQLiteDatabase db) {
         db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
                 + " INTEGER NOT NULL DEFAULT 0");

other/07_210340170_薛皓天_代码标注/精读 data gtask/data/NotesProvider.java

@@ -35,6 +35,8 @@ import net.micode.notes.data.Notes.NoteColumns;
 import net.micode.notes.data.NotesDatabaseHelper.TABLE;
 
 
+// NotesProvider 继承 ContentProvider
+// ContentProvider 管理 Android 以结构化方式存放的数据，以相对安全的方式封装数据
 public class NotesProvider extends ContentProvider {
     private static final UriMatcher mMatcher;
 
@@ -50,6 +52,8 @@ public class NotesProvider extends ContentProvider {
     private static final int URI_SEARCH          = 5;
     private static final int URI_SEARCH_SUGGEST  = 6;
 
+
+    // 添加URI 让URI工具类解析路径字符串
     static {
         mMatcher = new UriMatcher(UriMatcher.NO_MATCH);
         mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE);
@@ -65,6 +69,8 @@ public class NotesProvider extends ContentProvider {
      * x'0A' represents the '\n' character in sqlite. For title and content in the search result,
      * we will trim '\n' and white space in order to show more information.
      */
+
+    // x'0A'表示sqlite中的'\n'字符。对于搜索结果中的标题和内容，我们将删去'\n'和空白以显示更多信息。
     private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + ","
         + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + ","
         + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + ","
@@ -79,12 +85,14 @@ public class NotesProvider extends ContentProvider {
         + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER
         + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;
 
+    // 创建数据库帮助类
     @Override
     public boolean onCreate() {
         mHelper = NotesDatabaseHelper.getInstance(getContext());
         return true;
     }
 
+    // 查找给定路径
     @Override
     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
             String sortOrder) {
@@ -93,19 +101,23 @@ public class NotesProvider extends ContentProvider {
         String id = null;
         switch (mMatcher.match(uri)) {
             case URI_NOTE:
+                // 当匹配结果是1的时候 查询便签信息
                 c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null,
                         sortOrder);
                 break;
             case URI_NOTE_ITEM:
+                // 当匹配结果是2的时候 查询便签信息 获取id
                 id = uri.getPathSegments().get(1);
                 c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id
                         + parseSelection(selection), selectionArgs, null, null, sortOrder);
                 break;
             case URI_DATA:
+                // 当匹配结果是3的时候 查询数据信息
                 c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null,
                         sortOrder);
                 break;
             case URI_DATA_ITEM:
+                // 当匹配结果是4的时候 查询数据
                 id = uri.getPathSegments().get(1);
                 c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id
                         + parseSelection(selection), selectionArgs, null, null, sortOrder);
@@ -147,6 +159,7 @@ public class NotesProvider extends ContentProvider {
         return c;
     }
 
+    // 该方法使用SQLiteOpenHelper实例打开一个可写的SQLiteDatabase，并根据Uri参数将数据插入到表中。如果插入成功，则返回所插入数据的Uri。
     @Override
     public Uri insert(Uri uri, ContentValues values) {
         SQLiteDatabase db = mHelper.getWritableDatabase();
@@ -181,7 +194,9 @@ public class NotesProvider extends ContentProvider {
         return ContentUris.withAppendedId(uri, insertedId);
     }
 
+
     @Override
+    // 使用SQLiteOpenHelper实例打开一个可写的SQLiteDatabase，并根据Uri、selection和selectionArgs参数从表中删除数据。如果删除成功，它将返回受影响的行数。
     public int delete(Uri uri, String selection, String[] selectionArgs) {
         int count = 0;
         String id = null;
@@ -200,6 +215,7 @@ public class NotesProvider extends ContentProvider {
                  */
                 long noteId = Long.valueOf(id);
                 if (noteId <= 0) {
+                    // 如果编号是小于等于0的那么就放到垃圾桶里
                     break;
                 }
                 count = db.delete(TABLE.NOTE,
@@ -234,6 +250,7 @@ public class NotesProvider extends ContentProvider {
         SQLiteDatabase db = mHelper.getWritableDatabase();
         boolean updateData = false;
         switch (mMatcher.match(uri)) {
+            // 如果Uri与URI_NOTE或URI_NOTE_ITEM匹配，该方法增加注释版本，然后更新TABLE。
             case URI_NOTE:
                 increaseNoteVersion(-1, selection, selectionArgs);
                 count = db.update(TABLE.NOTE, values, selection, selectionArgs);
@@ -244,6 +261,8 @@ public class NotesProvider extends ContentProvider {
                 count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id
                         + parseSelection(selection), selectionArgs);
                 break;
+
+                // 如果Uri与URI_DATA或URI_DATA_ITEM匹配，则更新该表。
             case URI_DATA:
                 count = db.update(TABLE.DATA, values, selection, selectionArgs);
                 updateData = true;
@@ -267,10 +286,12 @@ public class NotesProvider extends ContentProvider {
         return count;
     }
 
+    // 解析选择
     private String parseSelection(String selection) {
         return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : "");
     }
 
+    // 更新便签版本
     private void increaseNoteVersion(long id, String selection, String[] selectionArgs) {
         StringBuilder sql = new StringBuilder(120);
         sql.append("UPDATE ");
@@ -296,8 +317,10 @@ public class NotesProvider extends ContentProvider {
         mHelper.getWritableDatabase().execSQL(sql.toString());
     }
 
+    // getType方法返回与给定Uri关联的数据的MIME类型。
     @Override
     public String getType(Uri uri) {
+        // 自动生成的方法存根
         // TODO Auto-generated method stub
         return null;
     }

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/data/MetaData.java

@@ -24,12 +24,14 @@ import net.micode.notes.tool.GTaskStringUtils;
 import org.json.JSONException;
 import org.json.JSONObject;
 
+// MetaData 继承 Task
 
 public class MetaData extends Task {
     private final static String TAG = MetaData.class.getSimpleName();
 
     private String mRelatedGid = null;
 
+    // setMeta方法以String gid和JSONObject metaInfo作为参数，并将gid作为属性添加到metaInfo JSON对象，键为GTaskStringUtils
     public void setMeta(String gid, JSONObject metaInfo) {
         try {
             metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
@@ -40,15 +42,20 @@ public class MetaData extends Task {
         setName(GTaskStringUtils.META_NOTE_NAME);
     }
 
+    // 返回mRelatedGid成员变量的值
     public String getRelatedGid() {
         return mRelatedGid;
     }
 
+
+    // 指示任务的注释是否为非空
     @Override
     public boolean isWorthSaving() {
         return getNotes() != null;
     }
 
+    //  如果任务的注释是非空的，它会尝试将它们解析为JSON对象，并提取与GTaskStringUtils相关的值。META_HEAD_GTASK_ID关键。
+    //  如果成功，它将mRelatedGid成员变量设置为该值。如果不成功，它将记录一条警告消息，并将mRelatedGid设置为null
     @Override
     public void setContentByRemoteJSON(JSONObject js) {
         super.setContentByRemoteJSON(js);
@@ -63,6 +70,8 @@ public class MetaData extends Task {
         }
     }
 
+
+    // 带有指示不应该调用它们的消息
     @Override
     public void setContentByLocalJSON(JSONObject js) {
         // this function should not be called
@@ -78,5 +87,4 @@ public class MetaData extends Task {
     public int getSyncAction(Cursor c) {
         throw new IllegalAccessError("MetaData:getSyncAction should not be called");
     }
-
 }

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/data/Node.java

@@ -20,23 +20,33 @@ import android.database.Cursor;
 
 import org.json.JSONObject;
 
+// 定义节点类
 public abstract class Node {
+    // 不进行同步
     public static final int SYNC_ACTION_NONE = 0;
 
+    // 增添信息同步至云端
     public static final int SYNC_ACTION_ADD_REMOTE = 1;
 
+    // 增添信息同步至本地
     public static final int SYNC_ACTION_ADD_LOCAL = 2;
 
+    // 删除信息同步至云端
     public static final int SYNC_ACTION_DEL_REMOTE = 3;
 
+    // 删除信息同步至本地
     public static final int SYNC_ACTION_DEL_LOCAL = 4;
 
+    // 更新信息同步至云端
     public static final int SYNC_ACTION_UPDATE_REMOTE = 5;
 
+    // 更新信息同步至本地
     public static final int SYNC_ACTION_UPDATE_LOCAL = 6;
 
+    // 同步冲突
     public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;
 
+    // 同步错误
     public static final int SYNC_ACTION_ERROR = 8;
 
     private String mGid;

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/data/SqlData.java

@@ -40,6 +40,7 @@ public class SqlData {
 
     private static final int INVALID_ID = -99999;
 
+    // 用于访问某种数据库或数据结构中的数据的列名或键
     public static final String[] PROJECTION_DATA = new String[] {
             DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
             DataColumns.DATA3
@@ -71,6 +72,11 @@ public class SqlData {
 
     private ContentValues mDiffDataValues;
 
+
+    /*
+     * 用于管理某种SQLite数据库中的数据，其中mDataId可以表示特定数据条目的主键或ID,
+     * mDataMimeType可以表示存储的数据类型，mDataContent、mDataContentData1和mDataContentData3可以表示其他数据字段
+    */
     public SqlData(Context context) {
         mContentResolver = context.getContentResolver();
         mIsCreate = true;
@@ -82,6 +88,7 @@ public class SqlData {
         mDiffDataValues = new ContentValues();
     }
 
+    // 构造函数用于获取ContentProvider提供的数据
     public SqlData(Context context, Cursor c) {
         mContentResolver = context.getContentResolver();
         mIsCreate = false;
@@ -89,6 +96,8 @@ public class SqlData {
         mDiffDataValues = new ContentValues();
     }
 
+
+    // 存入数据，将前面定义的变量加载到类的对象中
     private void loadFromCursor(Cursor c) {
         mDataId = c.getLong(DATA_ID_COLUMN);
         mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
@@ -97,6 +106,9 @@ public class SqlData {
         mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
     }
 
+
+    // 接受一个JSONObject作为参数，该参数表示要存储在数据库中的数据。该方法解析JSONObject并设置SqlData对象的相应成员变量。
+    // 如果SqlData对象是新的或者数据ID已更改，该方法将ID添加到mDiffDataValues对象。
     public void setContent(JSONObject js) throws JSONException {
         long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;
         if (mIsCreate || mDataId != dataId) {
@@ -130,6 +142,8 @@ public class SqlData {
         mDataContentData3 = dataContentData3;
     }
 
+    // 创建一个新的JSONObject，并将SqlData对象的成员变量设置为JSONObject的键值对。
+    // 该方法返回结果的JSONObject。如果SqlData对象是新的，则该方法返回null
     public JSONObject getContent() throws JSONException {
         if (mIsCreate) {
             Log.e(TAG, "it seems that we haven't created this in database yet");
@@ -144,6 +158,8 @@ public class SqlData {
         return js;
     }
 
+
+    // 提交修改，并保存至数据库
     public void commit(long noteId, boolean validateVersion, long version) {
 
         if (mIsCreate) {

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/data/SqlNote.java

@@ -1,17 +1,6 @@
 /*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ * Description：用于支持小米便签最底层的数据库相关操作，和sqldata的关系上是父集关系，即note是data的子父集。
- *
+ * 和SqlData相比，SqlNote算是真正意义上的数据了。
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 package net.micode.notes.gtask.data;
@@ -42,7 +31,7 @@ public class SqlNote {
     private static final String TAG = SqlNote.class.getSimpleName();
 
     private static final int INVALID_ID = -99999;
-
+    // 集合了interface NoteColumns中所有SF常量（17个）
     public static final String[] PROJECTION_NOTE = new String[] {
             NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
             NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
@@ -51,7 +40,7 @@ public class SqlNote {
             NoteColumns.LOCAL_MODIFIED, NoteColumns.ORIGIN_PARENT_ID, NoteColumns.GTASK_ID,
             NoteColumns.VERSION
     };
-
+    //以下设置17个列的编号
     public static final int ID_COLUMN = 0;
 
     public static final int ALERTED_DATE_COLUMN = 1;
@@ -85,7 +74,7 @@ public class SqlNote {
     public static final int GTASK_ID_COLUMN = 15;
 
     public static final int VERSION_COLUMN = 16;
-
+    //一下定义了17个内部的变量，其中12个可以由content中获得，5个需要初始化为0或者new
     private Context mContext;
 
     private ContentResolver mContentResolver;
@@ -121,16 +110,23 @@ public class SqlNote {
     private ContentValues mDiffNoteValues;
 
     private ArrayList<SqlData> mDataList;
-
+    /*
+     * 功能描述：构造函数
+     * 参数注解： mIsCreate用于标示构造方式
+     */
+    // 构造函数只有context，对所有的变量进行初始化
     public SqlNote(Context context) {
+        // 获取context程序间共享数据
         mContext = context;
         mContentResolver = context.getContentResolver();
         mIsCreate = true;
         mId = INVALID_ID;
         mAlertDate = 0;
         mBgColorId = ResourceParser.getDefaultBgId(context);
+        //调用系统函数获得创建时间
         mCreatedDate = System.currentTimeMillis();
         mHasAttachment = 0;
+        //最后一次修改时间初始化为创建时间
         mModifiedDate = System.currentTimeMillis();
         mParentId = 0;
         mSnippet = "";
@@ -139,11 +135,18 @@ public class SqlNote {
         mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
         mOriginParent = 0;
         mVersion = 0;
+        // 新建一个NoteValues值，用来记录改变的values
         mDiffNoteValues = new ContentValues();
+        // 新建一个data的列表
         mDataList = new ArrayList<SqlData>();
     }
-
+    /*
+     * 功能描述：构造函数
+     * 参数注解： mIsCreate用于标示构造方式
+     */
+    //构造函数有context和一个数据库的cursor，多数变量通过cursor指向的一条记录直接进行初始化
     public SqlNote(Context context, Cursor c) {
+        // 将mIsCreate定义为False作为标识，以id为参数，运行loadFromCursor函数
         mContext = context;
         mContentResolver = context.getContentResolver();
         mIsCreate = false;
@@ -153,7 +156,10 @@ public class SqlNote {
             loadDataContent();
         mDiffNoteValues = new ContentValues();
     }
-
+    /*
+     * 功能描述：构造函数
+     * 参数注解： mIsCreate用于标示构造方式
+     */
     public SqlNote(Context context, long id) {
         mContext = context;
         mContentResolver = context.getContentResolver();
@@ -165,16 +171,19 @@ public class SqlNote {
         mDiffNoteValues = new ContentValues();
 
     }
-
+    // 功能描述：通过id从光标处加载数据
     private void loadFromCursor(long id) {
         Cursor c = null;
         try {
+            // 通过id获得对应的ContentResolver中的cursor
             c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
                     new String[] {
-                        String.valueOf(id)
+                            String.valueOf(id)
                     }, null);
             if (c != null) {
                 c.moveToNext();
+                //然后加载数据进行初始化，这样函数
+                //SqlNote(Context context, long id)与SqlNote(Context context, long id)的实现方式基本相同
                 loadFromCursor(c);
             } else {
                 Log.w(TAG, "loadFromCursor: cursor = null");
@@ -184,7 +193,7 @@ public class SqlNote {
                 c.close();
         }
     }
-
+    // 功能描述：通过游标从光标处加载数据
     private void loadFromCursor(Cursor c) {
         mId = c.getLong(ID_COLUMN);
         mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
@@ -199,14 +208,15 @@ public class SqlNote {
         mWidgetType = c.getInt(WIDGET_TYPE_COLUMN);
         mVersion = c.getLong(VERSION_COLUMN);
     }
-
+    // 功能描述：通过content机制获取共享数据并加载到数据库当前游标处
     private void loadDataContent() {
         Cursor c = null;
         mDataList.clear();
+        // 获取ID对应content内容
         try {
             c = mContentResolver.query(Notes.CONTENT_DATA_URI, SqlData.PROJECTION_DATA,
                     "(note_id=?)", new String[] {
-                        String.valueOf(mId)
+                            String.valueOf(mId)
                     }, null);
             if (c != null) {
                 if (c.getCount() == 0) {
@@ -218,6 +228,7 @@ public class SqlNote {
                     mDataList.add(data);
                 }
             } else {
+                // 该ID在content中无对应的cursor
                 Log.w(TAG, "loadDataContent: cursor = null");
             }
         } finally {
@@ -225,7 +236,7 @@ public class SqlNote {
                 c.close();
         }
     }
-
+    // 设置通过content机制用于共享的数据信息
     public boolean setContent(JSONObject js) {
         try {
             JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
@@ -235,6 +246,7 @@ public class SqlNote {
                 // for folder we can only update the snnipet and type
                 String snippet = note.has(NoteColumns.SNIPPET) ? note
                         .getString(NoteColumns.SNIPPET) : "";
+                // 如果没有创建或者该摘要没有匹配原摘要则将其加入解析器
                 if (mIsCreate || !mSnippet.equals(snippet)) {
                     mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
                 }
@@ -247,27 +259,28 @@ public class SqlNote {
                 }
                 mType = type;
             } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE) {
+                // 获取便签提示日期
                 JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
                 long id = note.has(NoteColumns.ID) ? note.getLong(NoteColumns.ID) : INVALID_ID;
                 if (mIsCreate || mId != id) {
                     mDiffNoteValues.put(NoteColumns.ID, id);
                 }
                 mId = id;
-
+                // 获取数据的提醒日期
                 long alertDate = note.has(NoteColumns.ALERTED_DATE) ? note
                         .getLong(NoteColumns.ALERTED_DATE) : 0;
                 if (mIsCreate || mAlertDate != alertDate) {
                     mDiffNoteValues.put(NoteColumns.ALERTED_DATE, alertDate);
                 }
                 mAlertDate = alertDate;
-
+                // 获取数据的背景颜色
                 int bgColorId = note.has(NoteColumns.BG_COLOR_ID) ? note
                         .getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgId(mContext);
                 if (mIsCreate || mBgColorId != bgColorId) {
                     mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId);
                 }
                 mBgColorId = bgColorId;
-
+                // 对创建日期操作
                 long createDate = note.has(NoteColumns.CREATED_DATE) ? note
                         .getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis();
                 if (mIsCreate || mCreatedDate != createDate) {
@@ -281,14 +294,15 @@ public class SqlNote {
                     mDiffNoteValues.put(NoteColumns.HAS_ATTACHMENT, hasAttachment);
                 }
                 mHasAttachment = hasAttachment;
-
+                // 获取数据的修改日期
                 long modifiedDate = note.has(NoteColumns.MODIFIED_DATE) ? note
                         .getLong(NoteColumns.MODIFIED_DATE) : System.currentTimeMillis();
+                // 如果只是通过上下文对note进行数据库操作，或者该修改日期与原修改日期不相同
                 if (mIsCreate || mModifiedDate != modifiedDate) {
                     mDiffNoteValues.put(NoteColumns.MODIFIED_DATE, modifiedDate);
                 }
                 mModifiedDate = modifiedDate;
-
+                // 获取数据的父节点ID
                 long parentId = note.has(NoteColumns.PARENT_ID) ? note
                         .getLong(NoteColumns.PARENT_ID) : 0;
                 if (mIsCreate || mParentId != parentId) {
@@ -298,6 +312,7 @@ public class SqlNote {
 
                 String snippet = note.has(NoteColumns.SNIPPET) ? note
                         .getString(NoteColumns.SNIPPET) : "";
+                // 如果只是通过上下文对note进行数据库操作，或者该文本片段与原文本片段不相同
                 if (mIsCreate || !mSnippet.equals(snippet)) {
                     mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
                 }
@@ -316,12 +331,13 @@ public class SqlNote {
                     mDiffNoteValues.put(NoteColumns.WIDGET_ID, widgetId);
                 }
                 mWidgetId = widgetId;
-
+                // 获取数据的小部件种类
                 int widgetType = note.has(NoteColumns.WIDGET_TYPE) ? note
                         .getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE;
                 if (mIsCreate || mWidgetType != widgetType) {
                     mDiffNoteValues.put(NoteColumns.WIDGET_TYPE, widgetType);
                 }
+                // 将该小部件种类覆盖原小部件种类
                 mWidgetType = widgetType;
 
                 long originParent = note.has(NoteColumns.ORIGIN_PARENT_ID) ? note
@@ -330,7 +346,7 @@ public class SqlNote {
                     mDiffNoteValues.put(NoteColumns.ORIGIN_PARENT_ID, originParent);
                 }
                 mOriginParent = originParent;
-
+                // 遍历 dataArray，查找 id 为 dataId 的数据
                 for (int i = 0; i < dataArray.length(); i++) {
                     JSONObject data = dataArray.getJSONObject(i);
                     SqlData sqlData = null;
@@ -343,11 +359,13 @@ public class SqlNote {
                         }
                     }
 
+                    // 如果数据库数据没有进行更新，就根据上下文创建一个数据库数据，并添加到数据列表中
                     if (sqlData == null) {
                         sqlData = new SqlData(mContext);
                         mDataList.add(sqlData);
                     }
 
+                    // 最后为数据库数据进行设置
                     sqlData.setContent(data);
                 }
             }
@@ -358,7 +376,7 @@ public class SqlNote {
         }
         return true;
     }
-
+    // 获取content机制提供的数据并加载到note中
     public JSONObject getContent() {
         try {
             JSONObject js = new JSONObject();
@@ -369,6 +387,7 @@ public class SqlNote {
             }
 
             JSONObject note = new JSONObject();
+            //类型为note时
             if (mType == Notes.TYPE_NOTE) {
                 note.put(NoteColumns.ID, mId);
                 note.put(NoteColumns.ALERTED_DATE, mAlertDate);
@@ -384,7 +403,9 @@ public class SqlNote {
                 note.put(NoteColumns.ORIGIN_PARENT_ID, mOriginParent);
                 js.put(GTaskStringUtils.META_HEAD_NOTE, note);
 
+                // 获取数据库数据，并存入数组中
                 JSONArray dataArray = new JSONArray();
+                // 将note中的data全部存入JSONArray中
                 for (SqlData sqlData : mDataList) {
                     JSONObject data = sqlData.getContent();
                     if (data != null) {
@@ -401,17 +422,18 @@ public class SqlNote {
 
             return js;
         } catch (JSONException e) {
+            // 捕获json类型异常，显示错误，打印堆栈痕迹
             Log.e(TAG, e.toString());
             e.printStackTrace();
         }
         return null;
     }
-
+    // 给当前id设置父id
     public void setParentId(long id) {
         mParentId = id;
         mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
     }
-
+    // 给当前id设置Gtaskid
     public void setGtaskId(String gid) {
         mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
     }
@@ -419,27 +441,27 @@ public class SqlNote {
     public void setSyncId(long syncId) {
         mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
     }
-
+    // 功能描述：初始化本地修改，即撤销所有当前修改
     public void resetLocalModified() {
         mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
     }
-
+    // 获得当前id
     public long getId() {
         return mId;
     }
-
+    // 获得当前id的父id
     public long getParentId() {
         return mParentId;
     }
-
+    // 获取小片段即用于显示的部分便签内容
     public String getSnippet() {
         return mSnippet;
     }
-
+    // 判断是否为便签类型
     public boolean isNoteType() {
         return mType == Notes.TYPE_NOTE;
     }
-
+    // commit函数用于把当前造作所做的修改保存到数据库
     public void commit(boolean validateVersion) {
         if (mIsCreate) {
             if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
@@ -450,6 +472,7 @@ public class SqlNote {
             try {
                 mId = Long.valueOf(uri.getPathSegments().get(1));
             } catch (NumberFormatException e) {
+                // 捕获异常，转换出错，显示错误“获取note的id出现错误”
                 Log.e(TAG, "Get note id error :" + e.toString());
                 throw new ActionFailureException("create note failed");
             }
@@ -463,25 +486,28 @@ public class SqlNote {
                 }
             }
         } else {
+            // 如果该便签ID是无效ID，报错：没有这个便签
             if (mId <= 0 && mId != Notes.ID_ROOT_FOLDER && mId != Notes.ID_CALL_RECORD_FOLDER) {
                 Log.e(TAG, "No such note");
                 throw new IllegalStateException("Try to update note with invalid id");
             }
             if (mDiffNoteValues.size() > 0) {
+                // 更新版本：版本升级一个等级
                 mVersion ++;
                 int result = 0;
                 if (!validateVersion) {
                     result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
                             + NoteColumns.ID + "=?)", new String[] {
-                        String.valueOf(mId)
+                            String.valueOf(mId)
                     });
                 } else {
                     result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
-                            + NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
+                                    + NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
                             new String[] {
                                     String.valueOf(mId), String.valueOf(mVersion)
                             });
                 }
+                // 如果内容解析器没有更新，那么报错：没有更新，或许用户在同步时进行更新
                 if (result == 0) {
                     Log.w(TAG, "there is no update. maybe user updates note when syncing");
                 }
@@ -495,11 +521,14 @@ public class SqlNote {
         }
 
         // refresh local info
+        // 更新本地信息
         loadFromCursor(mId);
         if (mType == Notes.TYPE_NOTE)
             loadDataContent();
 
+        // 清空，回到初始化状态
         mDiffNoteValues.clear();
+        // 改变数据库构造模式
         mIsCreate = false;
     }
-}
+}

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/data/Task.java

@@ -54,6 +54,7 @@ public class Task extends Node {
         mMetaInfo = null;
     }
 
+    // 创建行动
     public JSONObject getCreateAction(int actionId) {
         JSONObject js = new JSONObject();
 
@@ -103,21 +104,26 @@ public class Task extends Node {
         return js;
     }
 
+    // 表示具有给定actionId的任务的更新操作。它包括操作类型、操作ID和实体δ
     public JSONObject getUpdateAction(int actionId) {
         JSONObject js = new JSONObject();
 
         try {
             // action_type
+            // 行动方式
             js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
                     GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE);
 
             // action_id
+            // 行动方式
             js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
 
             // id
+
             js.put(GTaskStringUtils.GTASK_JSON_ID, getGid());
 
             // entity_delta
+            // 实体δ
             JSONObject entity = new JSONObject();
             entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
             if (getNotes() != null) {
@@ -135,6 +141,8 @@ public class Task extends Node {
         return js;
     }
 
+
+    // 基于从Google Tasks API接收到的JSON对象设置任务的内容。它解析JSON对象，并相应地设置任务属性
     public void setContentByRemoteJSON(JSONObject js) {
         if (js != null) {
             try {
@@ -175,6 +183,9 @@ public class Task extends Node {
         }
     }
 
+
+    // 于在应用程序中本地存储的JSON对象设置任务的内容。
+    // 预期JSON对象具有特定的格式，包括一个笔记和数据数组。该方法解析JSON对象，并根据具有“note” MIME类型的第一个数据项设置任务名称
     public void setContentByLocalJSON(JSONObject js) {
         if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)
                 || !js.has(GTaskStringUtils.META_HEAD_DATA)) {
@@ -204,6 +215,9 @@ public class Task extends Node {
         }
     }
 
+    //该方法创建一个JSON对象，其中包含笔记的内容和元数据，可以是本地创建的新笔记，也可以是已与远程服务器同步的笔记。
+    // 如果注释是新的，它会创建一个新的JSON对象，并将注释的内容添加到该对象中。
+    // 如果之前已经同步过该笔记，它将使用新内容更新JSON对象。该方法返回结果JSON对象，如果有错误则返回null
     public JSONObject getLocalJSONFromContent() {
         String name = getName();
         try {
@@ -247,6 +261,8 @@ public class Task extends Node {
         }
     }
 
+
+    // 该方法设置注释的元数据。元数据作为元数据对象传递，然后转换为JSON对象并存储在mMetaInfo实例变量中。
     public void setMetaInfo(MetaData metaData) {
         if (metaData != null && metaData.getNotes() != null) {
             try {
@@ -258,6 +274,13 @@ public class Task extends Node {
         }
     }
 
+
+    // 该方法根据注释的本地和远程状态确定需要对其采取的同步操作。
+    // SYNC_ACTION_NONE:不需要同步操作，因为两边都没有更新。
+    // SYNC_ACTION_UPDATE_REMOTE:使用本地更改更新远程服务器。
+    // SYNC_ACTION_UPDATE_LOCAL:使用来自远程服务器的更改更新本地注释。
+    // SYNC_ACTION_UPDATE_CONFLICT:双方都有冲突的更新，因此需要解决同步问题。
+    // SYNC_ACTION_ERROR:在确定同步操作时发生错误
     public int getSyncAction(Cursor c) {
         try {
             JSONObject noteInfo = null;
@@ -311,6 +334,9 @@ public class Task extends Node {
         return SYNC_ACTION_ERROR;
     }
 
+    /*
+    类的基本定义
+     */
     public boolean isWorthSaving() {
         return mMetaInfo != null || (getName() != null && getName().trim().length() > 0)
                 || (getNotes() != null && getNotes().trim().length() > 0);

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/data/TaskList.java

@@ -37,12 +37,15 @@ public class TaskList extends Node {
 
     private ArrayList<Task> mChildren;
 
+    // 构造函数
     public TaskList() {
         super();
         mChildren = new ArrayList<Task>();
         mIndex = 1;
     }
 
+
+    // 创建一个动作
     public JSONObject getCreateAction(int actionId) {
         JSONObject js = new JSONObject();
 
@@ -74,6 +77,10 @@ public class TaskList extends Node {
         return js;
     }
 
+    /*
+    创建一个用于更新任务列表的JSON对象。
+    它接受一个actionId作为参数，并返回一个JSONObject，该JSONObject包括操作类型、操作ID、任务列表ID和一个带有任务列表实体更新信息的JSON对象。更新的信息包括任务列表的名称和删除状态。
+     */
     public JSONObject getUpdateAction(int actionId) {
         JSONObject js = new JSONObject();
 
@@ -103,6 +110,9 @@ public class TaskList extends Node {
         return js;
     }
 
+
+    // 远程JSON对象设置任务列表的内容。
+    // 它接受JSONObject作为参数，并从中提取ID、最后修改的时间戳和任务列表的名称。如果JSON对象中缺少这些字段中的任何一个，则抛出JSONException。
     public void setContentByRemoteJSON(JSONObject js) {
         if (js != null) {
             try {
@@ -129,6 +139,10 @@ public class TaskList extends Node {
         }
     }
 
+    /*
+    本地JSON对象设置文件夹的内容。它接受JSONObject作为参数，并从中提取文件夹的名称和类型。
+    如果文件夹是用户创建的文件夹，则其名称前缀为常量字符串。如果文件夹是系统文件夹，它的名称将匹配一些预定义的系统文件夹名称，并相应地设置其类型。
+     */
     public void setContentByLocalJSON(JSONObject js) {
         if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) {
             Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
@@ -157,6 +171,11 @@ public class TaskList extends Node {
         }
     }
 
+
+    /*
+    基于文件夹的内容创建一个本地JSON对象。
+    它创建了一个JSONObject，该JSONObject包含文件夹名称和类型的JSONObject。
+     */
     public JSONObject getLocalJSONFromContent() {
         try {
             JSONObject js = new JSONObject();
@@ -183,6 +202,13 @@ public class TaskList extends Node {
         }
     }
 
+    /*
+    根据包含文件夹信息的Cursor对象确定对文件夹采取的同步操作。
+    如果文件夹未被本地修改，且其最后一次修改时间戳与远程版本的时间戳匹配，则该方法返回SYNC_ACTION_NONE。
+    如果文件夹尚未在本地修改，但其最后一次修改时间戳与远程版本的时间戳不匹配，则该方法返回SYNC_ACTION_UPDATE_LOCAL。
+    如果文件夹已在本地修改，且其gtask ID与远程版本的ID匹配，则该方法返回SYNC_ACTION_UPDATE_REMOTE。
+    否则，该方法返回SYNC_ACTION_ERROR。
+     */
     public int getSyncAction(Cursor c) {
         try {
             if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
@@ -216,10 +242,15 @@ public class TaskList extends Node {
         return SYNC_ACTION_ERROR;
     }
 
+    // 返回当前任务拥有的子任务的数量。
     public int getChildTaskCount() {
         return mChildren.size();
     }
 
+    /*
+    向子任务列表中添加一个新的子任务。
+    如果子任务不为空且不在列表中，则会添加它。如果子任务添加成功，该方法返回true，否则返回false。
+     */
     public boolean addChildTask(Task task) {
         boolean ret = false;
         if (task != null && !mChildren.contains(task)) {
@@ -234,6 +265,12 @@ public class TaskList extends Node {
         return ret;
     }
 
+
+    /*
+    接受一个可选的索引参数，用于指定应该插入子任务的列表位置。
+    如果索引超出范围，则该方法返回false。如果索引有效，子任务将被插入指定位置，现有任务将被移动以腾出空间。
+    如果子任务成功插入，该方法返回true，否则返回false。
+     */
     public boolean addChildTask(Task task, int index) {
         if (index < 0 || index > mChildren.size()) {
             Log.e(TAG, "add child task: invalid index");
@@ -260,6 +297,13 @@ public class TaskList extends Node {
         return true;
     }
 
+
+    /*
+    从子任务列表中移除一个子任务。
+    如果任务不在列表中，该方法返回false。
+    如果任务在列表中，它将被删除，剩余的任务将被移动以填补空白。
+    如果任务被成功移除，该方法返回true，否则返回false。
+     */
     public boolean removeChildTask(Task task) {
         boolean ret = false;
         int index = mChildren.indexOf(task);
@@ -281,6 +325,7 @@ public class TaskList extends Node {
         return ret;
     }
 
+    // 将子任务移动到子任务列表中的新位置。
     public boolean moveChildTask(Task task, int index) {
 
         if (index < 0 || index >= mChildren.size()) {
@@ -299,6 +344,7 @@ public class TaskList extends Node {
         return (removeChildTask(task) && addChildTask(task, index));
     }
 
+    // 查找具有特定GID(全局标识符)的子任务并返回它
     public Task findChildTaskByGid(String gid) {
         for (int i = 0; i < mChildren.size(); i++) {
             Task t = mChildren.get(i);
@@ -309,10 +355,12 @@ public class TaskList extends Node {
         return null;
     }
 
+    //返回子任务列表中子任务的索引。
     public int getChildTaskIndex(Task task) {
         return mChildren.indexOf(task);
     }
 
+    // 返回指定索引的子任务。如果索引无效，则返回null。
     public Task getChildTaskByIndex(int index) {
         if (index < 0 || index >= mChildren.size()) {
             Log.e(TAG, "getTaskByIndex: invalid index");
@@ -321,6 +369,8 @@ public class TaskList extends Node {
         return mChildren.get(index);
     }
 
+    // 返回具有特定GID的子任务。
+    // 如果没有找到任务，则返回null。
     public Task getChilTaskByGid(String gid) {
         for (Task task : mChildren) {
             if (task.getGid().equals(gid))
@@ -329,6 +379,7 @@ public class TaskList extends Node {
         return null;
     }
 
+
     public ArrayList<Task> getChildTaskList() {
         return this.mChildren;
     }

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/exception/ActionFailureException.java

@@ -16,6 +16,8 @@
 
 package net.micode.notes.gtask.exception;
 
+// ActionFailureException 继承 RuntimeException
+// 为操作失败的情况，检查异常 显式地捕获或在方法的throws子句中声明
 public class ActionFailureException extends RuntimeException {
     private static final long serialVersionUID = 4425249765923293627L;
 

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/exception/NetworkFailureException.java

@@ -16,17 +16,21 @@
 
 package net.micode.notes.gtask.exception;
 
+//
 public class NetworkFailureException extends Exception {
     private static final long serialVersionUID = 2107610287180234136L;
 
+    // 这是一个默认构造函数，调用父类的默认构造函数
     public NetworkFailureException() {
         super();
     }
 
+    // 该构造函数接受一个字符串参数，表示与异常关联的错误消息
     public NetworkFailureException(String paramString) {
         super(paramString);
     }
 
+    // 该构造函数接受两个参数:表示错误消息的字符串和表示异常原因的Throwable对象
     public NetworkFailureException(String paramString, Throwable paramThrowable) {
         super(paramString, paramThrowable);
     }

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/remote/GTaskASyncTask.java

@@ -45,6 +45,8 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
 
     private OnCompleteListener mOnCompleteListener;
 
+
+    // 构造函数，初始化
     public GTaskASyncTask(Context context, OnCompleteListener listener) {
         mContext = context;
         mOnCompleteListener = listener;
@@ -53,16 +55,21 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
         mTaskManager = GTaskManager.getInstance();
     }
 
+    // 调用mTaskManager对象的cancelSync()方法来取消同步任务，mTaskManager对象是GTaskManager的实例
     public void cancelSync() {
         mTaskManager.cancelSync();
     }
 
+
+    // 通过调用AsyncTask的publishProgress()方法来发布同步任务的进度
     public void publishProgess(String message) {
         publishProgress(new String[] {
             message
         });
     }
 
+
+    // 同步期间向用户显示通知
     private void showNotification(int tickerId, String content) {
         Notification notification = new Notification(R.drawable.notification, mContext
                 .getString(tickerId), System.currentTimeMillis());
@@ -81,6 +88,8 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
         mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);
     }
 
+
+    // 在后台执行同步任务
     @Override
     protected Integer doInBackground(Void... unused) {
         publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity
@@ -88,6 +97,7 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
         return mTaskManager.sync(mContext, this);
     }
 
+    // 同步过程中更新通知消息
     @Override
     protected void onProgressUpdate(String... progress) {
         showNotification(R.string.ticker_syncing, progress[0]);
@@ -96,6 +106,7 @@ public class GTaskASyncTask extends AsyncTask<Void, String, Integer> {
         }
     }
 
+    // 在后台同步任务完成时被调用
     @Override
     protected void onPostExecute(Integer result) {
         if (result == GTaskManager.STATE_SUCCESS) {

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/remote/GTaskClient.java

@@ -64,10 +64,13 @@ import java.util.zip.InflaterInputStream;
 public class GTaskClient {
     private static final String TAG = GTaskClient.class.getSimpleName();
 
+    // Gtask 一般请求的URL
     private static final String GTASK_URL = "https://mail.google.com/tasks/";
 
+    // Gtask get请求的URL
     private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig";
 
+    // Gtask post请求的URL
     private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig";
 
     private static GTaskClient mInstance = null;
@@ -90,6 +93,8 @@ public class GTaskClient {
 
     private JSONArray mUpdateArray;
 
+
+    // 构造函数，初始化各个变量
     private GTaskClient() {
         mHttpClient = null;
         mGetUrl = GTASK_GET_URL;
@@ -102,6 +107,7 @@ public class GTaskClient {
         mUpdateArray = null;
     }
 
+    // 提供与Google任务交互的方法
     public static synchronized GTaskClient getInstance() {
         if (mInstance == null) {
             mInstance = new GTaskClient();
@@ -109,6 +115,9 @@ public class GTaskClient {
         return mInstance;
     }
 
+    // 检查用户是否已经登录使用
+    // loginGoogleAccount()方法登录，该方法返回身份验证令牌。
+    // 然后，如果用户有自定义域名，该方法尝试使用用户的自定义域名登录，如果失败，则尝试使用Google官方网址登录
     public boolean login(Activity activity) {
         // we suppose that the cookie would expire after 5 minutes
         // then we need to re-login
@@ -164,6 +173,7 @@ public class GTaskClient {
         return true;
     }
 
+    // 使用AccountManager类登录Google账户
     private String loginGoogleAccount(Activity activity, boolean invalidateToken) {
         String authToken;
         AccountManager accountManager = AccountManager.get(activity);
@@ -207,6 +217,7 @@ public class GTaskClient {
         return authToken;
     }
 
+    // 可能认证令牌已经过期，现在让我们使令牌无效并重试
     private boolean tryToLoginGtask(Activity activity, String authToken) {
         if (!loginGtask(authToken)) {
             // maybe the auth token is out of date, now let's invalidate the
@@ -225,6 +236,7 @@ public class GTaskClient {
         return true;
     }
 
+    // HttpClient类来登录Google任务
     private boolean loginGtask(String authToken) {
         int timeoutConnection = 10000;
         int timeoutSocket = 15000;
@@ -284,6 +296,7 @@ public class GTaskClient {
         return mActionId++;
     }
 
+    // 创建Http服务
     private HttpPost createHttpPost() {
         HttpPost httpPost = new HttpPost(mPostUrl);
         httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
@@ -291,6 +304,7 @@ public class GTaskClient {
         return httpPost;
     }
 
+    // 获取http请求，并且错误时抛出请求错误异常
     private String getResponseContent(HttpEntity entity) throws IOException {
         String contentEncoding = null;
         if (entity.getContentEncoding() != null) {
@@ -323,6 +337,8 @@ public class GTaskClient {
         }
     }
 
+
+    // 获取post请求，错误时抛出网络异常请求
     private JSONObject postRequest(JSONObject js) throws NetworkFailureException {
         if (!mLoggedin) {
             Log.e(TAG, "please login first");
@@ -360,6 +376,8 @@ public class GTaskClient {
         }
     }
 
+
+    // 创建task请求，错误时抛出网络错误异常
     public void createTask(Task task) throws NetworkFailureException {
         commitUpdate();
         try {
@@ -386,6 +404,8 @@ public class GTaskClient {
         }
     }
 
+
+    // 创建tasklist请求，错误时抛出网络错误异常
     public void createTaskList(TaskList tasklist) throws NetworkFailureException {
         commitUpdate();
         try {
@@ -412,6 +432,8 @@ public class GTaskClient {
         }
     }
 
+
+    // 提交更新请求，抛出网络错误异常
     public void commitUpdate() throws NetworkFailureException {
         if (mUpdateArray != null) {
             try {
@@ -433,6 +455,8 @@ public class GTaskClient {
         }
     }
 
+
+    // 添加更新节点，网络错误抛出异常
     public void addUpdateNode(Node node) throws NetworkFailureException {
         if (node != null) {
             // too many update items may result in an error
@@ -447,6 +471,8 @@ public class GTaskClient {
         }
     }
 
+
+    // 移动task操作
     public void moveTask(Task task, TaskList preParent, TaskList curParent)
             throws NetworkFailureException {
         commitUpdate();
@@ -463,18 +489,23 @@ public class GTaskClient {
             if (preParent == curParent && task.getPriorSibling() != null) {
                 // put prioring_sibing_id only if moving within the tasklist and
                 // it is not the first one
+                // 只有在任务列表中移动时才放置prioring_sibing_id，而且它不是第一个
                 action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling());
             }
             action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid());
             action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid());
             if (preParent != curParent) {
                 // put the dest_list only if moving between tasklists
+
+                // 只有在任务列表之间移动时才放置dest_list
                 action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid());
             }
             actionList.put(action);
             jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
 
             // client_version
+
+            // 客户端版本
             jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
 
             postRequest(jsPost);
@@ -486,6 +517,8 @@ public class GTaskClient {
         }
     }
 
+
+    // 删除节点操作，当网络错误时抛出异常
     public void deleteNode(Node node) throws NetworkFailureException {
         commitUpdate();
         try {
@@ -498,6 +531,8 @@ public class GTaskClient {
             jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList);
 
             // client_version
+
+            // 客户端版本
             jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion);
 
             postRequest(jsPost);
@@ -509,6 +544,9 @@ public class GTaskClient {
         }
     }
 
+
+    // 它首先检查用户是否已登录，如果没有则抛出异常。
+    // 然后它向一个URL发送HTTP GET请求以检索一个字符串响应
     public JSONArray getTaskLists() throws NetworkFailureException {
         if (!mLoggedin) {
             Log.e(TAG, "please login first");
@@ -547,6 +585,8 @@ public class GTaskClient {
         }
     }
 
+
+    // 构造一个表示POST请求的JSONObject，包括要在任务列表上执行的操作数组，并将此请求发送到服务器
     public JSONArray getTaskList(String listGid) throws NetworkFailureException {
         commitUpdate();
         try {
@@ -575,11 +615,13 @@ public class GTaskClient {
         }
     }
 
+    // 该方法返回与该类实例关联的帐户对象
     public Account getSyncAccount() {
         return mAccount;
     }
 
+    // 该方法将更新数组重置为null
     public void resetUpdateArray() {
         mUpdateArray = null;
     }
-}
+}

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/remote/GTaskManager.java

@@ -87,6 +87,8 @@ public class GTaskManager {
 
     private HashMap<Long, String> mNidToGid;
 
+
+    // 构造函数，初始化变量
     private GTaskManager() {
         mSyncing = false;
         mCancelled = false;
@@ -99,6 +101,7 @@ public class GTaskManager {
         mNidToGid = new HashMap<Long, String>();
     }
 
+ 
     public static synchronized GTaskManager getInstance() {
         if (mInstance == null) {
             mInstance = new GTaskManager();
@@ -106,11 +109,15 @@ public class GTaskManager {
         return mInstance;
     }
 
+
+    // 用于获取authtoken
     public synchronized void setActivityContext(Activity activity) {
         // used for getting authtoken
         mActivity = activity;
     }
 
+    // 调用来启动同步过程。
+    // 它以Context对象和GTaskASyncTask对象作为参数。Context对象用于获取ContentResolver对象，GTaskASyncTask对象用于报告同步进程的进度。
     public int sync(Context context, GTaskASyncTask asyncTask) {
         if (mSyncing) {
             Log.d(TAG, "Sync is in progress");
@@ -139,10 +146,12 @@ public class GTaskManager {
             }
 
             // get the task list from google
+            // 获取task信息从google中
             asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list));
             initGTaskList();
 
             // do content sync work
+            // 进行同步操作
             asyncTask.publishProgess(mContext.getString(R.string.sync_progress_syncing));
             syncContent();
         } catch (NetworkFailureException e) {
@@ -168,6 +177,12 @@ public class GTaskManager {
         return mCancelled ? STATE_SYNC_CANCELLED : STATE_SUCCESS;
     }
 
+
+    /*
+    initGTaskList()方法负责获取远程任务列表及其关联任务。它首先使用GTaskClient对象的getTaskLists()方法获得所有任务列表的列表。
+    然后，它查找具有与特定模式匹配的名称的任务列表，如果找到，则加载与其关联的元数据任务。
+    如果没有找到任务列表，则创建一个新的任务列表。然后加载所有其他任务列表及其关联的任务。
+     */
     private void initGTaskList() throws NetworkFailureException {
         if (mCancelled)
             return;
@@ -247,6 +262,14 @@ public class GTaskManager {
         }
     }
 
+    /*
+    初始化变量并清除本地已删除注释的映射。
+    如果同步已取消，请提前返回。
+    查询本地数据库中已在本地删除的笔记
+    对于每个笔记，如果它存在，请将其从远程笔记映射中删除，并执行内容同步操作远程删除它
+    。将本地备注ID添加到本地删除备注映射中。
+     */
+
     private void syncContent() throws NetworkFailureException {
         int syncType;
         Cursor c = null;
@@ -351,6 +374,15 @@ public class GTaskManager {
 
     }
 
+    /*
+    查询本地数据库中未删除的笔记(不包括系统笔记和垃圾文件夹中的笔记)。
+    对于每个笔记，确定它是否远程存在，如果存在，将其从远程笔记映射中移除，将其ID添加到远程ID与本地ID的映射中，并根据远程节点返回的同步操作执行内容同步操作。
+    如果远程不存在，则确定它是在本地添加的(在这种情况下，执行内容同步操作远程添加它)还是远程删除的(在这种情况下，将其标记为本地删除)。
+    对于映射中剩余的每个远程注释，执行内容同步操作将其添加到本地。
+    如果没有取消同步，请从本地数据库中删除本地删除的备注。如果此操作失败，则抛出异常。
+    如果同步尚未取消，请将更新提交给远程服务并刷新本地同步ID。
+     */
+
     private void syncFolder() throws NetworkFailureException {
         Cursor c = null;
         String gid;
@@ -476,6 +508,10 @@ public class GTaskManager {
             GTaskClient.getInstance().commitUpdate();
     }
 
+    /*
+    首先检查同步进程是否已取消，如果已取消，则不执行任何操作返回。
+    然后，它根据syncType参数执行一个switch语句，该参数决定要采取的同步操作的类型。
+     */
     private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException {
         if (mCancelled) {
             return;
@@ -522,6 +558,13 @@ public class GTaskManager {
         }
     }
 
+    /*
+    查布尔变量mCancelled是否为真。如果为真，该方法立即返回，不做任何其他操作。如果mCancelled为false，该方法将根据作为参数传递的Node类型创建一个新的SqlNote对象。
+
+    如果Node是TaskList的实例，该方法检查节点的名称。如果名称与特定模式匹配，该方法将创建一个具有特定id的新SqlNote对象。
+    否则，该方法将创建一个新的SqlNote对象，其中内容字段设置为节点内容的本地JSON表示，parentId字段设置为Notes.ID_ROOT_FOLDER。
+     */
+
     private void addLocalNode(Node node) throws NetworkFailureException {
         if (mCancelled) {
             return;
@@ -596,6 +639,7 @@ public class GTaskManager {
         updateRemoteMeta(node.getGid(), sqlNote);
     }
 
+    // 基本用途同addLocalNode一样，只是并不是添加而是更新
     private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException {
         if (mCancelled) {
             return;
@@ -619,6 +663,12 @@ public class GTaskManager {
         updateRemoteMeta(node.getGid(), sqlNote);
     }
 
+    /*
+    基于"Cursor"对象中的信息，使用谷歌Tasks API远程创建一个新的任务或任务列表。
+    如果注释是一个任务，它将创建一个具有指定内容的新任务，并将其添加到适当的任务列表中。如果注释是一个任务列表，它将创建一个具有指定名称的新任务列表。
+
+    一旦远程创建了新的任务或任务列表，与该笔记相关联的“SqlNote”对象将被更新为新的“GTask”ID，并且本地修改标志将被清除。
+     */
     private void addRemoteNode(Node node, Cursor c) throws NetworkFailureException {
         if (mCancelled) {
             return;
@@ -692,6 +742,11 @@ public class GTaskManager {
         mNidToGid.put(sqlNote.getId(), n.getGid());
     }
 
+
+    /*
+    根据"Cursor"对象中的信息，使用谷歌Tasks API远程更新现有任务或任务列表。它更新指定的“Node”对象的内容，并用新内容更新关联的“SqlNote”对象。
+    如果注释是一个任务，它还会检查该任务是否已移动到不同的任务列表，并在必要时远程移动该任务。最后，从“SqlNote”对象中清除本地修改标志。
+     */
     private void updateRemoteNode(Node node, Cursor c) throws NetworkFailureException {
         if (mCancelled) {
             return;
@@ -730,6 +785,13 @@ public class GTaskManager {
         sqlNote.commit(true);
     }
 
+    /*
+    首先检查SqlNote对象是否为空，并表示一个注释类型。
+    然后它从一个名为mMetaHashMap的HashMap中检索与gid关联的MetaData对象。
+    如果MetaData对象存在，它会用SqlNote对象的内容更新注释的元数据，并使用外部GTaskClient对象将MetaData对象添加到更新队列中。
+    如果MetaData对象不存在，它会创建一个新的MetaData对象，用SqlNote对象的内容设置它的元数据，将它添加到任务列表中，将MetaData对象放在mMetaHashMap中，并使用GTaskClient为它创建一个新任务。
+    注意，如果在更新期间发生任何网络错误，该方法将抛出一个NetworkFailureException。
+     */
     private void updateRemoteMeta(String gid, SqlNote sqlNote) throws NetworkFailureException {
         if (sqlNote != null && sqlNote.isNoteType()) {
             MetaData metaData = mMetaHashMap.get(gid);
@@ -746,6 +808,10 @@ public class GTaskManager {
         }
     }
 
+    /*
+    检查mCancelled标志是否设置为true。如果是，该方法只返回，不做任何其他事情。
+    然后，它会清除一些内部HashMap对象(mGTaskHashMap, mgtasklistthashmap和mMetaHashMap)，并使用initGTaskList()方法初始化GTaskList对象。
+     */
     private void refreshLocalSyncId() throws NetworkFailureException {
         if (mCancelled) {
             return;
@@ -790,10 +856,13 @@ public class GTaskManager {
         }
     }
 
+    // 该方法检索GTaskClient对象使用的同步帐户的名称。
     public String getSyncAccount() {
         return GTaskClient.getInstance().getSyncAccount().name;
     }
 
+
+    // 该方法将mCancelled标志设置为true，该标志可用于取消同步进程。
     public void cancelSync() {
         mCancelled = true;
     }

other/07_210340170_薛皓天_代码标注/精读 data gtask/gtask/remote/GTaskSyncService.java

@@ -42,6 +42,8 @@ public class GTaskSyncService extends Service {
 
     private static String mSyncProgress = "";
 
+
+    // 使用 GTaskASyncTask 实例启动同步任务，它是一个单独的类，用于在后台执行同步
     private void startSync() {
         if (mSyncTask == null) {
             mSyncTask = new GTaskASyncTask(this, new GTaskASyncTask.OnCompleteListener() {
@@ -56,17 +58,22 @@ public class GTaskSyncService extends Service {
         }
     }
 
+
+    // 取消同步任务，如果它当前正在运行
     private void cancelSync() {
         if (mSyncTask != null) {
             mSyncTask.cancelSync();
         }
     }
 
+
+    // mSyncTask 字段初始化为 null
     @Override
     public void onCreate() {
         mSyncTask = null;
     }
 
+    // 通过检查 ACTION_STRING_NAME 额外字段并执行适当的操作来处理传入的广播意图
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
         Bundle bundle = intent.getExtras();
@@ -86,6 +93,8 @@ public class GTaskSyncService extends Service {
         return super.onStartCommand(intent, flags, startId);
     }
 
+
+    // 在系统内存不足时取消同步任务
     @Override
     public void onLowMemory() {
         if (mSyncTask != null) {
@@ -93,10 +102,13 @@ public class GTaskSyncService extends Service {
         }
     }
 
+
     public IBinder onBind(Intent intent) {
         return null;
     }
 
+
+    // 发送具有当前同步进度和状态的广播意图
     public void sendBroadcast(String msg) {
         mSyncProgress = msg;
         Intent intent = new Intent(GTASK_SERVICE_BROADCAST_NAME);
@@ -105,6 +117,7 @@ public class GTaskSyncService extends Service {
         sendBroadcast(intent);
     }
 
+    // 开始同步
     public static void startSync(Activity activity) {
         GTaskManager.getInstance().setActivityContext(activity);
         Intent intent = new Intent(activity, GTaskSyncService.class);
@@ -112,16 +125,20 @@ public class GTaskSyncService extends Service {
         activity.startService(intent);
     }
 
+    // 取消同步
     public static void cancelSync(Context context) {
         Intent intent = new Intent(context, GTaskSyncService.class);
         intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_CANCEL_SYNC);
         context.startService(intent);
     }
 
+    // 正在同步
     public static boolean isSyncing() {
         return mSyncTask != null;
     }
 
+
+    // 获取进度
     public static String getProgressString() {
         return mSyncProgress;
     }

src/Notes-master1/app/build/intermediates/incremental/debug/mergeDebugResources/compile-file-map.properties

@@ -1,96 +0,0 @@
-#Sat Mar 18 10:49:27 GMT+08:00 2023
-net.micode.notes.app-main-7\:/drawable-hdpi/font_super.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_font_super.png.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/call_record.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_call_record.png.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/new_note_normal.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_new_note_normal.png.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/edit_yellow.9.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_edit_yellow.9.png.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/edit_title_green.9.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_edit_title_green.9.png.flat
-net.micode.notes.app-main-7\:/menu/sub_folder.xml=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\menu_sub_folder.xml.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/edit_title_yellow.9.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_edit_title_yellow.9.png.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/font_small.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_font_small.png.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/widget_2x_white.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_widget_2x_white.png.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/edit_white.9.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_edit_white.9.png.flat
-net.micode.notes.app-main-7\:/layout/account_dialog_title.xml=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\layout_account_dialog_title.xml.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/widget_4x_green.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_widget_4x_green.png.flat
-net.micode.notes.app-main-7\:/drawable-hdpi/list_blue_down.9.png=D\:\\Notes-master1\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_list_blue_down.9.png.flat
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src/Notes-master1/app/build/intermediates/incremental/debug/mergeDebugResources/merged.dir/values/values.xml

@@ -1,169 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources xmlns:ns1="urn:oasis:names:tc:xliff:document:1.2">
-    <string-array name="format_for_exported_note">
-        <item>-%s</item>      
-        <item>--%s</item>     
-        <item>--%s</item>     
-        <item>--%s</item>     
-    </string-array>
-    <string-array name="menu_share_ways">
-        <item>Messaging</item>
-        <item>Email</item>
-    </string-array>
-    <color name="user_query_highlight">#335b5b5b</color>
-    <dimen name="text_font_size_large">26sp</dimen>
-    <dimen name="text_font_size_medium">20sp</dimen>
-    <dimen name="text_font_size_normal">17sp</dimen>
-    <dimen name="text_font_size_small">14sp</dimen>
-    <dimen name="text_font_size_super">33sp</dimen>
-    <plurals name="search_results_title">
-         <item quantity="one"><ns1:g example="1" id="number">%1$s</ns1:g> result for \"<ns1:g example="???" id="search">%2$s</ns1:g>\"</item>
-        
-        <item quantity="other"><ns1:g example="15" id="number">%1$s</ns1:g> results for \"<ns1:g example="???" id="search">%2$s</ns1:g>\"</item>
-    </plurals>
-    <string name="alert_message_delete_folder">Confirm to delete folder and its notes?</string>
-    <string name="alert_message_delete_note">Confirm to delete this note?</string>
-    <string name="alert_message_delete_notes">Confirm to delete the selected %d notes?</string>
-    <string name="alert_title_delete">Delete selected notes</string>
-    <string name="app_name">Notes</string>
-    <string name="app_widget2x2">Notes 2x2</string>
-    <string name="app_widget4x4">Notes 4x4</string>
-    <string name="button_delete">Delete</string>
-    <string name="call_record_folder_name">Call notes</string>
-    <string name="datetime_dialog_cancel">cancel</string>
-    <string name="datetime_dialog_ok">set</string>
-    <string name="delete_remind_time_message">Delete reminder successfully</string>
-    <string name="error_note_empty_for_clock">Sorry, can not set clock on empty note</string>
-    <string name="error_note_empty_for_send_to_desktop">Sorry, can not send and empty note to home</string>
-    <string name="error_note_not_exist">The note is not exist</string>
-    <string name="error_sdcard_export">Export failed, please check SD card</string>
-    <string name="error_sdcard_unmounted">SD card busy, not available now</string>
-    <string name="error_sync_cancelled">Sync is canceled</string>
-    <string name="error_sync_internal">Sync failed, internal error occurs</string>
-    <string name="error_sync_network">Sync failed, please check network and account settings</string>
-    <string name="failed_sdcard_export">Export fail</string>
-    <string name="file_name_txt_format">notes_%s.txt</string>
-    <string name="file_path">/MIUI/notes/</string>
-    <string name="folder_exist">The folder %1$s exist, please rename</string>
-    <string name="format_date_ymd">yyyyMMdd</string>
-    <string name="format_datetime_mdhm">MMMd kk:mm</string>
-    <string name="format_exported_file_location">Export text file (%1$s) to SD (%2$s) directory</string>
-    <string name="format_folder_files_count">(%d)</string>
-    <string name="format_move_notes_to_folder">Have moved selected %1$d notes to %2$s folder</string>
-    <string name="hint_foler_name">Input name</string>
-    <string name="info_note_enter_desktop">Note added to home</string>
-    <string name="menu_alert">Remind me</string>
-    <string name="menu_create_folder">New Folder</string>
-    <string name="menu_delete">Delete</string>
-    <string name="menu_deselect_all">Deselect all</string>
-    <string name="menu_export_text">Export text</string>
-    <string name="menu_folder_change_name">Change folder name</string>
-    <string name="menu_folder_delete">Delete folder</string>
-    <string name="menu_folder_view">View folder</string>
-    <string name="menu_font_large">Large</string>
-    <string name="menu_font_normal">Medium</string>
-    <string name="menu_font_size">Font size</string>
-    <string name="menu_font_small">Small</string>
-    <string name="menu_font_super">Super</string>
-    <string name="menu_list_mode">Enter check list</string>
-    <string name="menu_move">Move to folder</string>
-    <string name="menu_move_parent_folder">Parent folder</string>
-    <string name="menu_normal_mode">Leave check list</string>
-    <string name="menu_remove_remind">Delete reminder</string>
-    <string name="menu_search">Search</string>
-    <string name="menu_select_all">Select all</string>
-    <string name="menu_select_none">Nothing selected, the operation is invalid</string>
-    <string name="menu_select_title">%d selected</string>
-    <string name="menu_send_to_desktop">Send to home</string>
-    <string name="menu_setting">Settings</string>
-    <string name="menu_share">Share</string>
-    <string name="menu_sync">Sync</string>
-    <string name="menu_sync_cancel">Cancel syncing</string>
-    <string name="menu_title_select_folder">Select folder</string>
-    <string name="note_alert_expired">Expired</string>
-    <string name="note_link_email">Send email</string>
-    <string name="note_link_other">Open map</string>
-    <string name="note_link_tel">Call</string>
-    <string name="note_link_web">Browse web</string>
-    <string name="notealert_enter">Take a look</string>
-    <string name="notealert_ok">Got it</string>
-    <string name="notelist_menu_new">Add note</string>
-    <string name="notelist_string_info">...</string>
-    <string name="preferences_account_summary">Sync notes with google task</string>
-    <string name="preferences_account_title">Sync account</string>
-    <string name="preferences_add_account">Add account</string>
-    <string name="preferences_bg_random_appear_title">New note background color random</string>
-    <string name="preferences_button_sync_cancel">Cancel syncing</string>
-    <string name="preferences_button_sync_immediately">Sync immediately</string>
-    <string name="preferences_dialog_change_account_title">Current account %1$s</string>
-    <string name="preferences_dialog_change_account_warn_msg">All sync related information will be deleted, which may result in duplicated items sometime</string>
-    <string name="preferences_dialog_select_account_tips">Please select a google account. Local notes will be synced with google task.</string>
-    <string name="preferences_dialog_select_account_title">Sync notes</string>
-    <string name="preferences_last_sync_time">Last sync time %1$s</string>
-    <string name="preferences_last_sync_time_format">yyyy-MM-dd hh:mm:ss</string>
-    <string name="preferences_menu_cancel">Cancel</string>
-    <string name="preferences_menu_change_account">Change sync account</string>
-    <string name="preferences_menu_remove_account">Remove sync account</string>
-    <string name="preferences_title">Settings</string>
-    <string name="preferences_toast_cannot_change_account">Cannot change the account because sync is in progress</string>
-    <string name="preferences_toast_success_set_accout">%1$s has been set as the sync account</string>
-    <string name="search">Notes</string>
-    <string name="search_hint">Search notes</string>
-    <string name="search_label">Searching Notes</string>
-    <string name="search_setting_description">Text in your notes</string>
-    <string name="set_remind_time_message">Set reminder</string>
-    <string name="success_sdcard_export">Export successful</string>
-    <string name="success_sync_account">Sync is successful with account %1$s</string>
-    <string name="sync_progress_init_list">Getting remote note list...</string>
-    <string name="sync_progress_login">Logging into %1$s...</string>
-    <string name="sync_progress_syncing">Synchronize local notes with Google Task...</string>
-    <string name="ticker_cancel">Sync is canceled</string>
-    <string name="ticker_fail">Sync is failed</string>
-    <string name="ticker_success">Sync is successful</string>
-    <string name="ticker_syncing">Syncing notes...</string>
-    <string name="widget_havenot_content">No associated note found, click to create associated note.</string>
-    <string name="widget_under_visit_mode">Privacy mode，can not see note content</string>
-    <style name="HighlightTextAppearancePrimary">
-    <item name="android:textSize">@dimen/text_font_size_normal</item>
-        <item name="android:textColor">@color/primary_text_dark</item>
-    </style>
-    <style name="HighlightTextAppearanceSecondary">
-        <item name="android:textSize">@dimen/text_font_size_small</item>
-        <item name="android:textColor">@color/secondary_text_dark</item>
-    </style>
-    <style name="NoteActionBarStyle" parent="@android:style/Widget.Holo.Light.ActionBar.Solid">
-        <item name="android:displayOptions"/>
-        <item name="android:visibility">gone</item>
-    </style>
-    <style name="NoteTheme" parent="@android:style/Theme.Holo.Light">
-        <item name="android:actionBarStyle">@style/NoteActionBarStyle</item>
-    </style>
-    <style name="TextAppearanceLarge">
-        <item name="android:textSize">@dimen/text_font_size_large</item>
-        <item name="android:textColorLink">#0000ff</item>
-    </style>
-    <style name="TextAppearanceMedium">
-        <item name="android:textSize">@dimen/text_font_size_medium</item>
-        <item name="android:textColorLink">#0000ff</item>
-    </style>
-    <style name="TextAppearanceNormal">
-        <item name="android:textSize">@dimen/text_font_size_normal</item>
-        <item name="android:textColorLink">#0000ff</item>
-    </style>
-    <style name="TextAppearancePrimaryItem">
-        <item name="android:textSize">@dimen/text_font_size_normal</item>
-        <item name="android:textColor">@color/primary_text_dark</item>
-    </style>
-    <style name="TextAppearanceSecondaryItem">
-        <item name="android:textSize">@dimen/text_font_size_small</item>
-        <item name="android:textColor">@color/secondary_text_dark</item>
-    </style>
-    <style name="TextAppearanceSuper">
-        <item name="android:textSize">@dimen/text_font_size_super</item>
-        <item name="android:textColorLink">#0000ff</item>
-    </style>
-    <style name="TextAppearanceUnderMenuIcon">
-        <item name="android:textSize">@dimen/text_font_size_normal</item>
-        <item name="android:textColor">@android:color/black</item>
-    </style>
-</resources>

src/Notes-master1/app/build/intermediates/incremental/mergeDebugAssets/merger.xml

@@ -1,2 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<merger version="3"><dataSet config="main" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="D:\Notes-master1\app\src\main\assets"/><source path="D:\Notes-master1\app\build\intermediates\shader_assets\debug\out"/></dataSet><dataSet config="debug" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="D:\Notes-master1\app\src\debug\assets"/></dataSet></merger>

src/Notes-master1/app/build/intermediates/incremental/mergeDebugJniLibFolders/merger.xml

@@ -1,2 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<merger version="3"><dataSet config="main" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="D:\Notes-master1\app\src\main\jniLibs"/></dataSet><dataSet config="debug" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="D:\Notes-master1\app\src\debug\jniLibs"/></dataSet></merger>

src/Notes-master1/app/build/intermediates/incremental/mergeDebugShaders/merger.xml

@@ -1,2 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<merger version="3"><dataSet config="main" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="D:\Notes-master1\app\src\main\shaders"/></dataSet><dataSet config="debug" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="D:\Notes-master1\app\src\debug\shaders"/></dataSet></merger>

src/Notes-master1/app/build/intermediates/incremental/packageDebug/tmp/debug/dex-renamer-state.txt

@@ -1,4 +0,0 @@
-#Sat Mar 18 11:16:59 GMT+08:00 2023
-base.0=D\:\\Notes-master1\\app\\build\\intermediates\\dex\\debug\\mergeDexDebug\\classes.dex
-renamed.0=classes.dex
-path.0=classes.dex

src/Notes-master1/app/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt

@@ -1,273 +0,0 @@
-1<?xml version="1.0" encoding="utf-8"?>
-2<!--
-3 Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
-4
-5     Licensed under the Apache License, Version 2.0 (the "License");
-6     you may not use this file except in compliance with the License.
-7     You may obtain a copy of the License at
-8
-9          http://www.apache.org/licenses/LICENSE-2.0
-10
-11     Unless required by applicable law or agreed to in writing, software
-12     distributed under the License is distributed on an "AS IS" BASIS,
-13     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-14     See the License for the specific language governing permissions and
-15     limitations under the License.
-16-->
-17<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-18    package="net.micode.notes"
-19    android:versionCode="1"
-20    android:versionName="0.1" >
-21
-22    <uses-sdk
-22-->D:\Notes-master1\app\src\main\AndroidManifest.xml:23:5-44
-23        android:minSdkVersion="14"
-23-->D:\Notes-master1\app\src\main\AndroidManifest.xml:23:15-41
-24        android:targetSdkVersion="14" />
-24-->D:\Notes-master1\app\src\main\AndroidManifest.xml:23:5-44
-25
-26    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-26-->D:\Notes-master1\app\src\main\AndroidManifest.xml:25:5-81
-26-->D:\Notes-master1\app\src\main\AndroidManifest.xml:25:22-78
-27    <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
-27-->D:\Notes-master1\app\src\main\AndroidManifest.xml:26:5-88
-27-->D:\Notes-master1\app\src\main\AndroidManifest.xml:26:22-85
-28    <uses-permission android:name="android.permission.INTERNET" />
-28-->D:\Notes-master1\app\src\main\AndroidManifest.xml:27:5-67
-28-->D:\Notes-master1\app\src\main\AndroidManifest.xml:27:22-64
-29    <uses-permission android:name="android.permission.READ_CONTACTS" />
-29-->D:\Notes-master1\app\src\main\AndroidManifest.xml:28:5-72
-29-->D:\Notes-master1\app\src\main\AndroidManifest.xml:28:22-69
-30    <uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
-30-->D:\Notes-master1\app\src\main\AndroidManifest.xml:29:5-74
-30-->D:\Notes-master1\app\src\main\AndroidManifest.xml:29:22-71
-31    <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
-31-->D:\Notes-master1\app\src\main\AndroidManifest.xml:30:5-80
-31-->D:\Notes-master1\app\src\main\AndroidManifest.xml:30:22-77
-32    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
-32-->D:\Notes-master1\app\src\main\AndroidManifest.xml:31:5-71
-32-->D:\Notes-master1\app\src\main\AndroidManifest.xml:31:22-68
-33    <uses-permission android:name="android.permission.USE_CREDENTIALS" />
-33-->D:\Notes-master1\app\src\main\AndroidManifest.xml:32:5-74
-33-->D:\Notes-master1\app\src\main\AndroidManifest.xml:32:22-71
-34    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
-34-->D:\Notes-master1\app\src\main\AndroidManifest.xml:33:5-81
-34-->D:\Notes-master1\app\src\main\AndroidManifest.xml:33:22-78
-35
-36    <application
-36-->D:\Notes-master1\app\src\main\AndroidManifest.xml:35:5-149:19
-37        android:debuggable="true"
-38        android:icon="@drawable/icon_app"
-38-->D:\Notes-master1\app\src\main\AndroidManifest.xml:36:9-42
-39        android:label="@string/app_name"
-39-->D:\Notes-master1\app\src\main\AndroidManifest.xml:37:9-41
-40        android:testOnly="true" >
-41        <activity
-41-->D:\Notes-master1\app\src\main\AndroidManifest.xml:38:9-51:20
-42            android:name="net.micode.notes.ui.NotesListActivity"
-42-->D:\Notes-master1\app\src\main\AndroidManifest.xml:39:13-49
-43            android:configChanges="keyboardHidden|orientation|screenSize"
-43-->D:\Notes-master1\app\src\main\AndroidManifest.xml:40:13-74
-44            android:label="@string/app_name"
-44-->D:\Notes-master1\app\src\main\AndroidManifest.xml:41:13-45
-45            android:launchMode="singleTop"
-45-->D:\Notes-master1\app\src\main\AndroidManifest.xml:42:13-43
-46            android:theme="@style/NoteTheme"
-46-->D:\Notes-master1\app\src\main\AndroidManifest.xml:43:13-45
-47            android:uiOptions="splitActionBarWhenNarrow"
-47-->D:\Notes-master1\app\src\main\AndroidManifest.xml:44:13-57
-48            android:windowSoftInputMode="adjustPan" >
-48-->D:\Notes-master1\app\src\main\AndroidManifest.xml:45:13-52
-49            <intent-filter>
-49-->D:\Notes-master1\app\src\main\AndroidManifest.xml:47:13-50:29
-50                <action android:name="android.intent.action.MAIN" />
-50-->D:\Notes-master1\app\src\main\AndroidManifest.xml:48:17-69
-50-->D:\Notes-master1\app\src\main\AndroidManifest.xml:48:25-66
-51
-52                <category android:name="android.intent.category.LAUNCHER" />
-52-->D:\Notes-master1\app\src\main\AndroidManifest.xml:49:17-77
-52-->D:\Notes-master1\app\src\main\AndroidManifest.xml:49:27-74
-53            </intent-filter>
-54        </activity>
-55        <activity
-55-->D:\Notes-master1\app\src\main\AndroidManifest.xml:53:9-81:20
-56            android:name="net.micode.notes.ui.NoteEditActivity"
-56-->D:\Notes-master1\app\src\main\AndroidManifest.xml:54:13-48
-57            android:configChanges="keyboardHidden|orientation|screenSize"
-57-->D:\Notes-master1\app\src\main\AndroidManifest.xml:55:13-74
-58            android:launchMode="singleTop"
-58-->D:\Notes-master1\app\src\main\AndroidManifest.xml:56:13-43
-59            android:theme="@style/NoteTheme" >
-59-->D:\Notes-master1\app\src\main\AndroidManifest.xml:57:13-45
-60            <intent-filter>
-60-->D:\Notes-master1\app\src\main\AndroidManifest.xml:59:13-64:29
-61                <action android:name="android.intent.action.VIEW" />
-61-->D:\Notes-master1\app\src\main\AndroidManifest.xml:60:17-69
-61-->D:\Notes-master1\app\src\main\AndroidManifest.xml:60:25-66
-62
-63                <category android:name="android.intent.category.DEFAULT" />
-63-->D:\Notes-master1\app\src\main\AndroidManifest.xml:61:17-76
-63-->D:\Notes-master1\app\src\main\AndroidManifest.xml:61:27-73
-64
-65                <data android:mimeType="vnd.android.cursor.item/text_note" />
-65-->D:\Notes-master1\app\src\main\AndroidManifest.xml:62:17-78
-65-->D:\Notes-master1\app\src\main\AndroidManifest.xml:62:23-75
-66                <data android:mimeType="vnd.android.cursor.item/call_note" />
-66-->D:\Notes-master1\app\src\main\AndroidManifest.xml:62:17-78
-66-->D:\Notes-master1\app\src\main\AndroidManifest.xml:62:23-75
-67            </intent-filter>
-68            <intent-filter>
-68-->D:\Notes-master1\app\src\main\AndroidManifest.xml:66:13-71:29
-69                <action android:name="android.intent.action.INSERT_OR_EDIT" />
-69-->D:\Notes-master1\app\src\main\AndroidManifest.xml:67:17-79
-69-->D:\Notes-master1\app\src\main\AndroidManifest.xml:67:25-76
-70
-71                <category android:name="android.intent.category.DEFAULT" />
-71-->D:\Notes-master1\app\src\main\AndroidManifest.xml:61:17-76
-71-->D:\Notes-master1\app\src\main\AndroidManifest.xml:61:27-73
-72
-73                <data android:mimeType="vnd.android.cursor.item/text_note" />
-73-->D:\Notes-master1\app\src\main\AndroidManifest.xml:62:17-78
-73-->D:\Notes-master1\app\src\main\AndroidManifest.xml:62:23-75
-74                <data android:mimeType="vnd.android.cursor.item/call_note" />
-74-->D:\Notes-master1\app\src\main\AndroidManifest.xml:62:17-78
-74-->D:\Notes-master1\app\src\main\AndroidManifest.xml:62:23-75
-75            </intent-filter>
-76            <intent-filter>
-76-->D:\Notes-master1\app\src\main\AndroidManifest.xml:73:13-76:29
-77                <action android:name="android.intent.action.SEARCH" />
-77-->D:\Notes-master1\app\src\main\AndroidManifest.xml:74:17-71
-77-->D:\Notes-master1\app\src\main\AndroidManifest.xml:74:25-68
-78
-79                <category android:name="android.intent.category.DEFAULT" />
-79-->D:\Notes-master1\app\src\main\AndroidManifest.xml:61:17-76
-79-->D:\Notes-master1\app\src\main\AndroidManifest.xml:61:27-73
-80            </intent-filter>
-81
-82            <meta-data
-82-->D:\Notes-master1\app\src\main\AndroidManifest.xml:78:13-80:54
-83                android:name="android.app.searchable"
-83-->D:\Notes-master1\app\src\main\AndroidManifest.xml:79:17-54
-84                android:resource="@xml/searchable" />
-84-->D:\Notes-master1\app\src\main\AndroidManifest.xml:80:17-51
-85        </activity>
-86
-87        <provider
-87-->D:\Notes-master1\app\src\main\AndroidManifest.xml:83:9-86:43
-88            android:name="net.micode.notes.data.NotesProvider"
-88-->D:\Notes-master1\app\src\main\AndroidManifest.xml:84:13-63
-89            android:authorities="micode_notes"
-89-->D:\Notes-master1\app\src\main\AndroidManifest.xml:85:13-47
-90            android:multiprocess="true" />
-90-->D:\Notes-master1\app\src\main\AndroidManifest.xml:86:13-40
-91
-92        <receiver
-92-->D:\Notes-master1\app\src\main\AndroidManifest.xml:88:9-100:20
-93            android:name="net.micode.notes.widget.NoteWidgetProvider_2x"
-93-->D:\Notes-master1\app\src\main\AndroidManifest.xml:89:13-57
-94            android:label="@string/app_widget2x2" >
-94-->D:\Notes-master1\app\src\main\AndroidManifest.xml:90:13-50
-95            <intent-filter>
-95-->D:\Notes-master1\app\src\main\AndroidManifest.xml:91:13-95:29
-96                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
-96-->D:\Notes-master1\app\src\main\AndroidManifest.xml:92:17-84
-96-->D:\Notes-master1\app\src\main\AndroidManifest.xml:92:25-81
-97                <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
-97-->D:\Notes-master1\app\src\main\AndroidManifest.xml:93:17-85
-97-->D:\Notes-master1\app\src\main\AndroidManifest.xml:93:25-82
-98                <action android:name="android.intent.action.PRIVACY_MODE_CHANGED" />
-98-->D:\Notes-master1\app\src\main\AndroidManifest.xml:94:17-85
-98-->D:\Notes-master1\app\src\main\AndroidManifest.xml:94:25-82
-99            </intent-filter>
-100
-101            <meta-data
-101-->D:\Notes-master1\app\src\main\AndroidManifest.xml:97:13-99:58
-102                android:name="android.appwidget.provider"
-102-->D:\Notes-master1\app\src\main\AndroidManifest.xml:98:17-58
-103                android:resource="@xml/widget_2x_info" />
-103-->D:\Notes-master1\app\src\main\AndroidManifest.xml:99:17-55
-104        </receiver>
-105        <receiver
-105-->D:\Notes-master1\app\src\main\AndroidManifest.xml:101:9-114:20
-106            android:name="net.micode.notes.widget.NoteWidgetProvider_4x"
-106-->D:\Notes-master1\app\src\main\AndroidManifest.xml:102:13-57
-107            android:label="@string/app_widget4x4" >
-107-->D:\Notes-master1\app\src\main\AndroidManifest.xml:103:13-50
-108            <intent-filter>
-108-->D:\Notes-master1\app\src\main\AndroidManifest.xml:91:13-95:29
-109                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
-109-->D:\Notes-master1\app\src\main\AndroidManifest.xml:92:17-84
-109-->D:\Notes-master1\app\src\main\AndroidManifest.xml:92:25-81
-110                <action android:name="android.appwidget.action.APPWIDGET_DELETED" />
-110-->D:\Notes-master1\app\src\main\AndroidManifest.xml:93:17-85
-110-->D:\Notes-master1\app\src\main\AndroidManifest.xml:93:25-82
-111                <action android:name="android.intent.action.PRIVACY_MODE_CHANGED" />
-111-->D:\Notes-master1\app\src\main\AndroidManifest.xml:94:17-85
-111-->D:\Notes-master1\app\src\main\AndroidManifest.xml:94:25-82
-112            </intent-filter>
-113
-114            <meta-data
-114-->D:\Notes-master1\app\src\main\AndroidManifest.xml:97:13-99:58
-115                android:name="android.appwidget.provider"
-115-->D:\Notes-master1\app\src\main\AndroidManifest.xml:98:17-58
-116                android:resource="@xml/widget_4x_info" />
-116-->D:\Notes-master1\app\src\main\AndroidManifest.xml:99:17-55
-117        </receiver>
-118        <receiver android:name="net.micode.notes.ui.AlarmInitReceiver" >
-118-->D:\Notes-master1\app\src\main\AndroidManifest.xml:116:9-120:20
-118-->D:\Notes-master1\app\src\main\AndroidManifest.xml:116:19-55
-119            <intent-filter>
-119-->D:\Notes-master1\app\src\main\AndroidManifest.xml:117:13-119:29
-120                <action android:name="android.intent.action.BOOT_COMPLETED" />
-120-->D:\Notes-master1\app\src\main\AndroidManifest.xml:118:17-79
-120-->D:\Notes-master1\app\src\main\AndroidManifest.xml:118:25-76
-121            </intent-filter>
-122        </receiver>
-123        <receiver
-123-->D:\Notes-master1\app\src\main\AndroidManifest.xml:122:9-125:20
-124            android:name="net.micode.notes.ui.AlarmReceiver"
-124-->D:\Notes-master1\app\src\main\AndroidManifest.xml:123:13-61
-125            android:process=":remote" >
-125-->D:\Notes-master1\app\src\main\AndroidManifest.xml:124:13-38
-126        </receiver>
-127
-128        <activity
-128-->D:\Notes-master1\app\src\main\AndroidManifest.xml:127:9-132:20
-129            android:name="net.micode.notes.ui.AlarmAlertActivity"
-129-->D:\Notes-master1\app\src\main\AndroidManifest.xml:128:13-50
-130            android:label="@string/app_name"
-130-->D:\Notes-master1\app\src\main\AndroidManifest.xml:129:13-45
-131            android:launchMode="singleInstance"
-131-->D:\Notes-master1\app\src\main\AndroidManifest.xml:130:13-48
-132            android:theme="@android:style/Theme.Holo.Wallpaper.NoTitleBar" >
-132-->D:\Notes-master1\app\src\main\AndroidManifest.xml:131:13-75
-133        </activity>
-134        <activity
-134-->D:\Notes-master1\app\src\main\AndroidManifest.xml:134:9-139:20
-135            android:name="net.micode.notes.ui.NotesPreferenceActivity"
-135-->D:\Notes-master1\app\src\main\AndroidManifest.xml:135:13-71
-136            android:label="@string/preferences_title"
-136-->D:\Notes-master1\app\src\main\AndroidManifest.xml:136:13-54
-137            android:launchMode="singleTop"
-137-->D:\Notes-master1\app\src\main\AndroidManifest.xml:137:13-43
-138            android:theme="@android:style/Theme.Holo.Light" >
-138-->D:\Notes-master1\app\src\main\AndroidManifest.xml:138:13-60
-139        </activity>
-140
-141        <service
-141-->D:\Notes-master1\app\src\main\AndroidManifest.xml:141:9-144:19
-142            android:name="net.micode.notes.gtask.remote.GTaskSyncService"
-142-->D:\Notes-master1\app\src\main\AndroidManifest.xml:142:13-74
-143            android:exported="false" >
-143-->D:\Notes-master1\app\src\main\AndroidManifest.xml:143:13-37
-144        </service>
-145
-146        <meta-data
-146-->D:\Notes-master1\app\src\main\AndroidManifest.xml:146:9-148:52
-147            android:name="android.app.default_searchable"
-147-->D:\Notes-master1\app\src\main\AndroidManifest.xml:147:13-58
-148            android:value=".ui.NoteEditActivity" />
-148-->D:\Notes-master1\app\src\main\AndroidManifest.xml:148:13-49
-149    </application>
-150
-151</manifest>