更改

Signed-off-by: lilium-saber <WR364999428@hotmail.com>

doc/模块注释负责人.txt

@@ -1,6 +0,0 @@
-成员         负责模块
-郭德宁       data and model
-高源         ui
-陈鹤林       gtask
-段逸群       tool and widget
-

other/07_210340142.段逸群_代码标注/tool/BackupUtils.java

@@ -0,0 +1,350 @@
+/*
+ * 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;//////
+//添加包。类。对象等
+
+public class BackupUtils {
+    private static final String TAG = "BackupUtils";
+    // Singleton stuff
+    private static BackupUtils sInstance;
+
+    public static synchronized BackupUtils getInstance(Context context) {
+        if (sInstance == null) {// 如果实例为空则创建新实例
+            sInstance = new BackupUtils(context);
+        } // 返回实例
+        return sInstance;
+    }
+
+    /**
+     * Following states are signs to represents backup or restore
+     * status
+     */
+    // Currently, the sdcard is not mounted
+    public static final int STATE_SD_CARD_UNMOUONTED = 0;
+    // The backup file not exist
+    public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
+    // The data is not well formated, may be changed by other programs
+    public static final int STATE_DATA_DESTROIED = 2;
+    // Some run-time exception which causes restore or backup fails
+    public static final int STATE_SYSTEM_ERROR = 3;
+    // Backup or restore success
+    public static final int STATE_SUCCESS = 4;
+
+    private TextExport mTextExport;
+
+    private BackupUtils(Context context) {
+        mTextExport = new TextExport(context);
+    }
+
+    private static boolean externalStorageAvailable() {
+        return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
+    }
+
+    // 将笔记·导出文本，返回导出时的状态码
+    public int exportToText() {
+        return mTextExport.exportToText();
+    }
+
+    // 获取导出文本文件名
+    public String getExportedTextFileName() {
+        return mTextExport.mFileName;
+    }
+
+    // 获得到处文本文件目录
+    public String getExportedTextFileDir() {
+        return mTextExport.mFileDirectory;
+    }
+
+    // 负责将笔记导出为文本
+    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;// 查询结果中笔记id所在列的索引
+
+        private static final int NOTE_COLUMN_MODIFIED_DATE = 1;// 查询结果中笔记上次修改时间所在的索引
+
+        private static final int NOTE_COLUMN_SNIPPET = 2;// 查询摘要所在索引
+
+        private static final String[] DATA_PROJECTION = {
+                DataColumns.CONTENT,
+                DataColumns.MIME_TYPE,
+                DataColumns.DATA1,
+                DataColumns.DATA2,
+                DataColumns.DATA3,
+                DataColumns.DATA4,
+        };// 定义静态不可变数据列
+
+        private static final int DATA_COLUMN_CONTENT = 0;
+
+        private static final int DATA_COLUMN_MIME_TYPE = 1;
+
+        private static final int DATA_COLUMN_CALL_DATE = 2;
+
+        private static final int DATA_COLUMN_PHONE_NUMBER = 4;// 定义以上数据列MIME类，呼叫日期，号码的索引初始值
+
+        private final String[] TEXT_FORMAT;// 定义带有3个元素字符串数组TEXT_FORMAT
+        private static final int FORMAT_FOLDER_NAME = 0;// 格式化后目录名称FORMAT_FOLDER_NAME= 0
+        private static final int FORMAT_NOTE_DATE = 1;
+        private static final int FORMAT_NOTE_CONTENT = 2;// 格式化后的笔记内容索引为2
+
+        private Context mContext;// 声名Context类型和字符串类型
+        private String mFileName;// 文件名称
+        private String mFileDirectory;// 文件目录路径
+
+        public TextExport(Context context) {
+            TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);// 初始化文件名称变量为控字符串
+            mContext = context;
+            mFileName = "";
+            mFileDirectory = "";
+        }// 初始化文件路径mFileDirectory = ""为空
+        // 创建TextExport对象
+
+        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
+            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.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
+                                mContext.getString(R.string.format_datetime_mdhm),
+                                notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
+                        // Query data belong to this note
+                        String noteId = notesCursor.getString(NOTE_COLUMN_ID);
+                        exportNoteToText(noteId, ps);
+                    } while (notesCursor.moveToNext());
+                }
+                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, // 查询CONTENT_DATA_URI对应的数据表
+                    DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
+                            noteId
+                    }, null);
+            // 使用DataColumns.NOTE_ID是否为？限制查询条件，并查询noted对应的数据行
+            if (dataCursor != null) {// 若查询不为空，则执行以下代码：
+                if (dataCursor.moveToFirst()) {// 移动游标为第一条记录并循环记录
+                    do {
+                        String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);// 获取MIME_TYPE的值
+                        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);// 从记录中获取phonenumber和calldate的值并输出号码
+
+                            if (!TextUtils.isEmpty(phoneNumber)) {// 若电话号码不为空
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        phoneNumber));// 输出电话号码输出到PrintStream实例PS中
+                            }
+                            // Print call date
+                            ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
+                                    .format(mContext.getString(R.string.format_datetime_mdhm),
+                                            callDate)));// 输出通话日期信息到PrintStream中
+                            // Print call attachment location
+                            if (!TextUtils.isEmpty(location)) {// 若位置信息不为空
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        location));
+                            } // 输出位置信息到PrintStream实例PS中
+                        } else if (DataConstants.NOTE.equals(mimeType)) {// 若数据类型为Note，则执行以下语句
+                            String content = dataCursor.getString(DATA_COLUMN_CONTENT);// 从Cursor中获取信息
+                            if (!TextUtils.isEmpty(content)) {
+                                ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
+                                        content));// 将内容信息格式化输出rintStream实例PS中
+                            }
+                        }
+                    } 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) {// 若出现IO异常，则廖永Log类的e（）方法将异常信息输出日志中
+                Log.e(TAG, e.toString());
+            }
+        }
+
+        // 使用rintStream实例PS的write（）方法写入字节数组到输出流中，包括换行和字母数字
+        /**
+         * Note will be exported as text which is user readable
+         */
+        public int exportToText() {// 定义exportToText()，返回值类型为整型
+            if (!externalStorageAvailable()) {
+                Log.d(TAG, "Media was not mounted");
+                return STATE_SD_CARD_UNMOUONTED;
+            }
+            // 若外部存储不可用，输出日记信息，返回表示Media was not mounted
+            PrintStream ps = getExportToTextPrintStream();// 获取打印输出
+            if (ps == null) {
+                Log.e(TAG, "get print stream error");
+                return STATE_SYSTEM_ERROR;
+            } // 若获取不到打印输出，输出get print stream error"，并返回错误
+              // First export folder and its notes
+            Cursor folderCursor = mContext.getContentResolver().query(// 声名Cursor类的变量folder，存储调查结果
+                    Notes.CONTENT_NOTE_URI,
+                    NOTE_PROJECTION, // 调用getContentResolver()，查询目标为Note表中数据和NOTE_PROJECTION指定列
+                    "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND "
+                            + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
+                            + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER,
+                    null, null);
+            // 限定查询条件为文件夹且父类文件夹不是回收站
+            if (folderCursor != null) {// 判断folder是否为空
+                if (folderCursor.moveToFirst()) {
+                    do {
+                        // Print folder's name
+                        String folderName = "";// 遍历查询文件夹中所有文件夹记录
+                        if (folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
+                            folderName = mContext.getString(R.string.call_record_folder_name);// 若记录对应通话记录文件夹，给folder赋值Notes.ID_CALL_RECORD_FOLDER
+                        } else {// 否则folder赋值为记录的摘要字段值
+                            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);// 获取当前记录对应文件夹id并赋值给folder
+                        exportFolderToText(folderId, ps);
+                    } while (folderCursor.moveToNext());// 将当前记录文件夹导出为文本形式，结果写入PS中
+                }
+                folderCursor.close();
+            }
+
+            // Export notes in root's folder
+            Cursor noteCursor = mContext.getContentResolver().query(// 通过getContentResolver()获取resolver对象，并调用querty方法查询
+                    Notes.CONTENT_NOTE_URI, // 查询URI
+                    NOTE_PROJECTION, // 查询列
+                    NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
+                            + "=0",
+                    null, null);// 限制查询类型为Notes.TYPE_NOTE，且父id为0的note记录
+
+            if (noteCursor != null) {
+                if (noteCursor.moveToFirst()) {// 将游标移到查询结果的第一条记录
+                    do {
+                        ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
+                                mContext.getString(R.string.format_datetime_mdhm),
+                                noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));// 根据时间格式化字符串的时间戳，将时间转换成字符串格式
+                        // Query data belong to this note
+                        String noteId = noteCursor.getString(NOTE_COLUMN_ID);
+                        exportNoteToText(noteId, ps);
+                    } while (noteCursor.moveToNext());
+                } // 或i去当前Note记录的id，吧id对应数据写入输出流中
+                noteCursor.close();
+            }
+            ps.close();// 关闭游标
+
+            return STATE_SUCCESS;
+        }
+
+        /**
+         * Get a print stream pointed to the file {@generateExportedTextFile}
+         */
+        private PrintStream getExportToTextPrintStream() {
+            File file = generateFileMountedOnSDcard(mContext, R.string.file_path, // 使用getExportToTextPrintStream()再sd卡上生成指定名称和路径的文本文件
+                    R.string.file_name_txt_format);
+            if (file == null) {
+                Log.e(TAG, "create file to exported failed");
+                return null;// 若生成文件失败，返回null，再logcat输出错误信息
+            }
+            mFileName = file.getName();
+            mFileDirectory = mContext.getString(R.string.file_path);// 将成功创建文件保存为FoleNAMe，路径柏村委mFileDiectory
+            PrintStream ps = null;
+            try {
+                FileOutputStream fos = new FileOutputStream(file);
+                ps = new PrintStream(fos);// 创建对象fos，用于写入文件
+            } catch (FileNotFoundException e) {// 使用fos创建PrintStream对象PS，一边向文件夹写入数据
+                e.printStackTrace();
+                return null;// 若无法找到写入目标文件，再logcat输出错误信息，并返回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();
+        sb.append(Environment.getExternalStorageDirectory());// 再strtingbuilder中添加SD卡根目录路径
+        sb.append(context.getString(filePathResId));
+        File filedir = new File(sb.toString());// 添加文件路径字符串资源id，并返回file对象表示该目录
+        sb.append(context.getString(
+                fileNameFormatResId,
+                DateFormat.format(context.getString(R.string.format_date_ymd),
+                        System.currentTimeMillis())));// 再StringBuilder添加文件名格式字符串资源id，并使用dateFormat替换为当前日期格式化字符串
+        File file = new File(sb.toString());
+        // 返回表示最终创建的文件夹对象
+        try {
+            if (!filedir.exists()) {
+                filedir.mkdir();
+            } // 判断指定目录是否存在，若不存在创建
+            if (!file.exists()) {
+                file.createNewFile();
+            } // 判断指定目录是否存在，若不存在创建
+            return file;// 返回创建对象
+        } catch (SecurityException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } // 如果不能在指定目录下创建新的文件，则抛出IOException异常
+
+        return null;
+    }
+}

other/07_210340142.段逸群_代码标注/tool/DataUtils.java

@@ -0,0 +1,304 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.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;
+//导入android 包content、database等
+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;
+//导入net-micode包下数据
+import java.util.ArrayList;
+import java.util.HashSet;
+//导入JAVA ArrayList和HashSet类
+
+public class DataUtils {// 对DataUtils类进行定义
+    public static final String TAG = "DataUtils";// 定义静态不可变字TAG符串常量"DataUtils"
+
+    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;
+        }
+        // 定义批量删除笔记。若ids参数为null，输出"the ids is null"并返回true；若ids参数为0，输出"no id is in the
+        // hashset"并返回true
+        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+        // 定义操作列表，存储ContentProviderOperation对象
+        for (long id : ids) {// 遍历id列表
+            if (id == Notes.ID_ROOT_FOLDER) {
+                Log.e(TAG, "Don't delete system folder root");
+                continue;
+            } // 如果id为系统根目录，打印"不要删除系统根目录"并进行下一次循环
+            ContentProviderOperation.Builder builder = ContentProviderOperation
+                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+            operationList.add(builder.build());// 创造builder对象，删除指定id的ContentProviderOperation
+        }
+        try {// 调用applybatch
+            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;// 若返回为空或第一个结果为null，输出删除失败返回false，否则返回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()));
+        } // 若remoteexeption或operationapplicationexception异常，返回false
+        return false;
+    }
+
+    public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
+        ContentValues values = new ContentValues();// 创建contentValues对象
+        values.put(NoteColumns.PARENT_ID, desFolderId);// 移动笔记至目标文件夹
+        values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);// 更新笔记的原始父类文件夹id
+        values.put(NoteColumns.LOCAL_MODIFIED, 1);
+        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);
+        // 更新笔记
+    }
+
+    public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
+            long folderId) {// 若ids为空，打印log并返回true
+        if (ids == null) {
+            Log.d(TAG, "the ids is null");
+            return true;
+        } // 用于批量移动笔记至文件夹
+
+        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+        for (long id : ids) {// 遍历笔记id集合
+            ContentProviderOperation.Builder builder = ContentProviderOperation
+                    .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));
+            builder.withValue(NoteColumns.PARENT_ID, folderId);// 移动笔记至目标文件夹
+            builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);// 添加键值对，表示本地有效
+            operationList.add(builder.build());// 添加操作至操作列表
+        }
+
+        try {
+            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);// 应用操作列表
+            if (results == null || results.length == 0 || results[0] == null) {// 如果结果为空或者第一个结果为空，打印log并返回false
+                Log.d(TAG, "delete notes failed, ids:" + ids.toString());
+                return false;
+            }
+            return true;// true表示操作成功
+        } catch (RemoteException e) {// 捕获远程异常
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        } catch (OperationApplicationException e) {// 捕获操作异常
+            Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+        }
+        return false;// false表示操作失败
+    }
+
+    /**
+     * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
+     */
+    public static int getUserFolderCount(ContentResolver resolver) {
+        Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
+                new String[] { "COUNT(*)" },
+                NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+                new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER) },
+                null);
+
+        int count = 0;
+        if (cursor != null) {
+            if (cursor.moveToFirst()) {
+                try {
+                    count = cursor.getInt(0);
+                } catch (IndexOutOfBoundsException e) {
+                    Log.e(TAG, "get folder count failed:" + e.toString());
+                } finally {
+                    cursor.close();
+                }
+            }
+        }
+        return count;
+    }// 检查笔记是否在数据库中可见，若不可见输出"get folder count failed:"
+
+    public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
+        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
+                null,
+                NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
+                new String[] { String.valueOf(type) },
+                null);
+
+        boolean exist = false;
+        if (cursor != null) {
+            if (cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    // 检查数据是否在数据库中存在
+    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;
+    }
+
+    // 检查文件名称是否可见
+    public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
+        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
+                null, null, null, null);
+
+        boolean exist = false;
+        if (cursor != null) {
+            if (cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
+        Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
+                NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
+                        " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
+                        " AND " + NoteColumns.SNIPPET + "=?",
+                new String[] { name }, null);
+        boolean exist = false;
+        if (cursor != null) {
+            if (cursor.getCount() > 0) {
+                exist = true;
+            }
+            cursor.close();
+        }
+        return exist;
+    }
+
+    public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
+        // 查询文件夹中所有小部件id和类型
+        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>();
+                // 遍历查询结果，将小部件id和类型存入hashSET中
+                do {
+                    try {
+                        AppWidgetAttribute widget = new AppWidgetAttribute();
+                        widget.widgetId = c.getInt(0);
+                        widget.widgetType = c.getInt(1);
+                        set.add(widget);
+                    } catch (IndexOutOfBoundsException e) {
+                        Log.e(TAG, e.toString());
+                    }
+                } while (c.moveToNext());
+            }
+            c.close();
+        } // 返回文件夹中所有小部件HashSet集合
+        return set;
+    }
+
+    public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {// 获取一段笔记的getCallNumberByNoteId
+        Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
+                new String[] { CallNote.PHONE_NUMBER },
+                CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
+                new String[] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
+                null);
+
+        if (cursor != null && cursor.moveToFirst()) {
+            try {
+                return cursor.getString(0);
+            } catch (IndexOutOfBoundsException e) {// 如果查询结果不为空且有数据，则返回该行的电话号码
+                Log.e(TAG, "Get call number fails " + e.toString());// 如果获取电话号码失败，则打印错误日志
+            } finally {
+                cursor.close();
+            } // 关闭游标，释放资源
+        }
+        return "";// 如果没有查询结果，则返回空串
+    }
+
+    public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
+        // 使用ContentResover对象来查询数据，并返回Cursor对象
+        Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, // 查询Note id字段
+                new String[] { CallNote.NOTE_ID }, // 通过童话日期，电话号码扽给查询
+                CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
+                        + CallNote.PHONE_NUMBER + ",?)", // 传入查询参数
+                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) {// 使用ContentResovler对象查询数据，返回Cursor对象
+        Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, // 查询snippet字段
+                new String[] { NoteColumns.SNIPPET },
+                NoteColumns.ID + "=?",
+                new String[] { String.valueOf(noteId) },
+                null);
+
+        if (cursor != null) {
+            String snippet = "";
+            if (cursor.moveToFirst()) {// 获取查询结果中第0列的值，即snippet字段值
+                snippet = cursor.getString(0);
+            }
+            cursor.close();
+            return snippet;
+        }
+        throw new IllegalArgumentException("Note is not found with id: " + noteId);
+    }// 通过noteld获取信息，返回字符串
+
+    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_210340142.段逸群_代码标注/tool/ResourceParser.java

@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.tool;
+
+import android.content.Context;
+import android.preference.PreferenceManager;
+
+import net.micode.notes.R;
+import net.micode.notes.ui.NotesPreferenceActivity;
+
+public class ResourceParser {
+    // 定义常量，用于表示颜色和字体大小
+    public static final int YELLOW = 0;// 黄色
+    public static final int BLUE = 1;// 蓝
+    public static final int WHITE = 2;// bai
+    public static final int GREEN = 3;
+    public static final int RED = 4;
+
+    public static final int BG_DEFAULT_COLOR = YELLOW;// 默认背景颜色为黄色
+
+    public static final int TEXT_SMALL = 0;// 字体小号
+    public static final int TEXT_MEDIUM = 1;// 中
+    public static final int TEXT_LARGE = 2;// da
+    public static final int TEXT_SUPER = 3;// chaoda
+
+    public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM;// 默认大小为中
+
+    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
+        };// 定义私有静态常量G_EDIT_RESOURCES ，用于储存图片资源id
+
+        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
+        };// 定义另一个私有静态常量，用于储存笔记编辑页面标题背景资源id
+
+        public static int getNoteBgResource(int id) {
+            return BG_EDIT_RESOURCES[id];
+        }
+
+        public static int getNoteTitleBgResource(int id) {
+            return BG_EDIT_TITLE_RESOURCES[id];
+        }
+    }// 初始化编辑页面标题背景资源id
+
+    public static int getDefaultBgId(Context context) {// 获取应用配置信息，判断用户是否自定义背景颜色
+        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;// 若没有定义，返回默认颜色白色
+        }
+    }
+
+    public static class NoteItemBgResources {
+        private final static int[] BG_FIRST_RESOURCES = new int[] { // 定义final整型数组 BG_FIRST_RESOURCES
+                R.drawable.list_yellow_up, // 黄色背景上边框图案id
+                R.drawable.list_blue_up, // 蓝色背景上边框图案id
+                R.drawable.list_white_up, // 白色背景边框图案id
+                R.drawable.list_green_up, // 绿色背景边框图案id
+                R.drawable.list_red_up// 红色背景边框图案id
+        };
+
+        private final static int[] BG_NORMAL_RESOURCES = new int[] {
+                R.drawable.list_yellow_middle, // 黄色背景中间边框图案id
+                R.drawable.list_blue_middle, // 蓝色背景中间边框图案id
+                R.drawable.list_white_middle, // 白色背景中间边框图案id
+                R.drawable.list_green_middle, // 绿色背景中间边框图案id
+                R.drawable.list_red_middle// 红色背景中间边框图案id
+        };
+
+        private final static int[] BG_LAST_RESOURCES = new int[] {
+                R.drawable.list_yellow_down, // 黄色背景中下间边框图案id
+                R.drawable.list_blue_down, // 蓝色背景中下间边框图案id
+                R.drawable.list_white_down, // 白色背景中下间边框图案id
+                R.drawable.list_green_down, // 绿色背景中下间边框图案id
+                R.drawable.list_red_down,// 红色背景中下间边框图案id
+        };
+
+        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];
+        }
+
+        // 定义getNoteBgFirstRes方法，用于返回G_FIRST_RESOURCES[id]
+        public static int getNoteBgLastRes(int id) {
+            return BG_LAST_RESOURCES[id];
+        }
+
+        // 定义getNoteBgLastRes方法，用于返回 BG_LAST_RESOURCES[id]
+        public static int getNoteBgSingleRes(int id) {
+            return BG_SINGLE_RESOURCES[id];
+        }
+
+        // 定义getNoteBgSingleRes方法，用于返回BG_SINGLE_RESOURCES[id]
+        public static int getNoteBgNormalRes(int id) {
+            return BG_NORMAL_RESOURCES[id];
+        }
+
+        // 定义etNoteBgNormalRes方法，用于返回BG_NORMAL_RESOURCES[id]
+        public static int getFolderBgRes() {
+            return R.drawable.list_folder;
+        }// 定义getFolderBgRes方法，用于返回 R.drawable.list_folder
+    }
+
+    public static class WidgetBgResources {// 定义静态内部类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,
+        };// 管理小部件2x2格式不同颜色资源图片
+
+        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
+        };// 管理小部件4x4格式不同颜色资源图片
+
+        public static int getWidget4xBgResource(int id) {
+            return BG_4X_RESOURCES[id];
+        }
+    }
+
+    public static class TextAppearanceResources {// 定义TextAppearanceResources 静态内部类
+        private final static int[] TEXTAPPEARANCE_RESOURCES = new int[] {
+                R.style.TextAppearanceNormal,
+                R.style.TextAppearanceMedium,
+                R.style.TextAppearanceLarge,
+                R.style.TextAppearanceSuper
+        };// 分别对应中等，大号，超大的文本外观样式
+
+        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_210340142.段逸群_代码标注/widget/NoteWidgetProvider.java

@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.widget;
+
+import android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;//导入包
+import android.appwidget.AppWidgetProvider;//导入包
+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
+    };// 定义字符串数组PROJECTION，包含IDB G_COLOR_ID SNIPPET三个元素
+
+    public static final int COLUMN_ID = 0;
+    public static final int COLUMN_BG_COLOR_ID = 1;
+    public static final int COLUMN_SNIPPET = 2;// 定义三个元素初始量
+
+    private static final String TAG = "NoteWidgetProvider";
+
+    @Override
+    public void onDeleted(Context context, int[] appWidgetIds) {// 创建一个ContentValues对象values存储键值对数据
+        ContentValues values = new ContentValues();
+        values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);// 将无效小部件id存储ContentValues中
+        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]) });// 通过getcontent函数获取程序contentValues对象，用update方法更新
+        }
+    }
+
+    private Cursor getNoteWidgetInfo(Context context, int widgetId) {
+        return context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
+                PROJECTION, // 获取ContentResovler对象，并用querty方法查询数据·
+                NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?",
+                new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) },
+                null);
+    }// null表示默认排序方式
+
+    protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        update(context, appWidgetManager, appWidgetIds, false);
+    }
+
+    private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds,
+            boolean privacyMode) {
+        for (int i = 0; i < appWidgetIds.length; i++) {// 判断当前小部件id是否合法，若合法才可进行操作
+            if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) {
+                int bgId = ResourceParser.getDefaultBgId(context);// 获取默认背景图片id，并将其作为当前部件的背景
+                String snippet = "";
+                Intent intent = new Intent(context, NoteEditActivity.class);
+                intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);// 创建internet对象，设置flag标志
+                intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]);
+                intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType());
+
+                Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]);
+                if (c != null && c.moveToFirst()) {
+                    if (c.getCount() > 1) {
+                        Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]);
+                        c.close();
+                        return;
+                    } // 判断数据库查询结果c是否为空，若查询结果大于1，则记录日志错误并返回
+                    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);// 将当前记录id作为extra数据存入启动internet对象中
+                } else {
+                    snippet = context.getResources().getString(R.string.widget_havenot_content);
+                    intent.setAction(Intent.ACTION_INSERT_OR_EDIT);//// 数据库查询结果为空或者未能成功移动到第一条记录时，将片段内容设置为默认字符串
+                }
+
+                if (c != null) {
+                    c.close();
+                }
+
+                RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId());
+                rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId));
+                intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId);
+                /**
+                 * Generate the pending intent to start host for the widget
+                 */
+                PendingIntent pendingIntent = null;
+                if (privacyMode) {// 判断是否处于隐私模式
+                    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);// 如果是，将小部件文本设置为“访问模式下”，并创建一个PendingIntent，使点击小部件时跳转至NotesListActivity
+                } else {
+                    rv.setTextViewText(R.id.widget_text, snippet);
+                    pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent,
+                            PendingIntent.FLAG_UPDATE_CURRENT);
+                } // 如果不是，将小部件文本设置为片段内容，并创建一个PendingIntent，使点击小部件时跳转至NoteEditActivity
+
+                rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent);
+                appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
+            }
+        }
+    }
+
+    protected abstract int getBgResourceId(int bgId);
+
+    protected abstract int getLayoutId();
+
+    protected abstract int getWidgetType();// 获取背景资源id，布局资源id，小部件类型
+}

other/07_210340143.高源_代码标注/ui/AlarmAlertActivity.java

@@ -0,0 +1,198 @@
+/*
+ * 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.Activity;
+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 java.io.IOException;
+
+public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { // 实现OnClickListener接口，用于监听对话框按钮的点击事件
+    private long mNoteId; // 用于存储笔记Id
+    private String mSnippet; // 用于存储笔记内容摘要
+    private static final int SNIPPET_PREW_MAX_LEN = 60;// 限制笔记长度
+    MediaPlayer mPlayer;
+
+    // onCreate() 函数在 Activity 初始化时调用，用于初始化
+    // savedInstanceState 该参数用于恢复 Activity 状态。
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {// 重写onCreate()方法，用于初始化，该方法在Activity初始化时调用
+        super.onCreate(savedInstanceState);
+
+        // 界面显示：无标题
+        requestWindowFeature(Window.FEATURE_NO_TITLE);// 设置窗口没有标题
+
+        // 获取 Window 对象，添加 FLAG_SHOW_WHEN_LOCKED 标记
+        final Window win = getWindow();
+        win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);// 设置窗口在锁屏时仍然显示
+
+        // 如果屏幕没亮，添加一系列 屏幕唤醒标记
+        if (!isScreenOn()) {
+            win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON // 保持窗口常亮
+                    | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON // 点亮窗口
+                    | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON // 允许在窗口点亮时锁屏
+                    | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
+        }
+
+        // 获取Intent对象
+        Intent intent = getIntent();
+
+        // 从Intent对象中获取笔记的 Id 和内容
+        try {
+            mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
+
+            // 根据便签Id从数据库中获取便签内容
+            // getContentResolver() 实现数据共享，实例存储
+            mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
+            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();
+            return;
+        }
+
+        // 创建 MediaPlayer 对象，根据笔记是否存在数据库中来展示操作对话框或者直接退出
+        mPlayer = new MediaPlayer();
+        if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
+            showActionDialog();
+            playAlarmSound();
+        } else {
+            finish();
+        }
+    }
+
+    // 用于判断屏幕是否被唤醒（亮着）
+    private boolean isScreenOn() {
+        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
+        return pm.isScreenOn();
+    }
+
+    // 用于实现报警铃声的播放
+    private void playAlarmSound() {
+        // 获取系统默认的铃声
+        Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
+
+        // 获取静音模式下允许响铃的类型
+        int silentModeStreams = Settings.System.getInt(getContentResolver(),
+                Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
+
+        // 判断闹钟铃声是否被静音模式影响
+        // 若被影响则设置播放音频类型为允许响铃的类型
+        // 若违背影响则设置音频为默认类型
+        if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
+            mPlayer.setAudioStreamType(silentModeStreams);
+        } else {
+            mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
+        }
+        try {
+            mPlayer.setDataSource(this, url); // 设置报警铃声
+            mPlayer.prepare(); // 准备同步
+            mPlayer.setLooping(true); // 设置循环播放
+            mPlayer.start(); // 开始播放
+        } catch (IllegalArgumentException e) {
+            // TODO Auto-generated catch block
+
+            // 以下的 e.printStackTrace() 函数功能是抛出异常，还将显示出更深的调用信息
+            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();
+        }
+    }
+
+    // 创建一个对话框，标题为app的名字，内容为mSnippet，确定按钮为notealert_ok，
+    // 当屏幕开启时，取消按钮为notealert_enter，点击弹出框外部可以隐藏弹出框
+    private void showActionDialog() {
+        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“OK”按钮
+        dialog.setPositiveButton(R.string.notealert_ok, this);
+
+        if (isScreenOn()) {
+            // 给对话框添加“CANCEL”按钮
+            dialog.setNegativeButton(R.string.notealert_enter, this);
+        }
+        // 给对话框设置监听器
+        dialog.show().setOnDismissListener(this);
+    }
+
+    // 当对话框界面内某个按钮被点击时调用以下方法
+    // 接收 对话框界面 和 点击的按钮位置which 为参数
+    public void onClick(DialogInterface dialog, int which) {
+        // switch语句，根据按钮位置的不同，执行不同的操作
+        switch (which) {
+            // 当点击点击的是返回按键
+            case DialogInterface.BUTTON_NEGATIVE:
+                // 将编辑的便签内容传输到特定类中
+                Intent intent = new Intent(this, NoteEditActivity.class);
+                // 设置操作属性
+                intent.setAction(Intent.ACTION_VIEW);
+                // 创建一个特定的Note Id传输给便签
+                intent.putExtra(Intent.EXTRA_UID, mNoteId);
+                // 开始操作
+                startActivity(intent);
+                break;
+            // 如果是其他按钮被点击则不执行任何操作
+            default:
+                break;
+        }
+    }
+
+    public void onDismiss(DialogInterface dialog) {
+        // 终止报警声音
+        stopAlarmSound();
+        // 完成动作
+        finish();
+    }
+
+    private void stopAlarmSound() {
+        if (mPlayer != null) {
+            mPlayer.stop();// 停止播放
+            mPlayer.release();
+            // 释放 MediaPlayer(媒体播放器)对象
+            mPlayer = null;
+        }
+    }
+}

other/07_210340143.高源_代码标注/ui/AlarmInitReceiver.java

@@ -0,0 +1,73 @@
+/*
+ * 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;//闹钟管理器
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.ContentUris;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+
+//定时向用户推送闹钟提醒
+public class AlarmInitReceiver extends BroadcastReceiver {// 继承BroadcastReceiver类,用于接收广播,并且在接收到广播后启动AlarmAlertActivity
+
+    // 对数据库的操作，调用笔记Id和时钟时间
+    private static final String[] PROJECTION = new String[] {
+            NoteColumns.ID,
+            NoteColumns.ALERTED_DATE
+    };
+
+    private static final int COLUMN_ID = 0;
+    private static final int COLUMN_ALERTED_DATE = 1;
+
+    // 重写 BroadcastReceiver 的 onReceive 方法
+    @Override
+    public void onReceive(Context context, Intent intent) {
+
+        // 获取当前系统时间
+        long currentDate = System.currentTimeMillis();
+
+        // 查询数据库，找出大于当前系统时间、类型相等的笔记的记录
+        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);
+
+        // 当查询结果不为空时
+        if (c != null) {
+            // 如果有符合要求的记录，就遍历每一条记录
+            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_210340143.高源_代码标注/ui/AlarmReceiver.java

@@ -0,0 +1,32 @@
+/*
+ * 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;//广播接收器
+import android.content.Context;
+import android.content.Intent;
+
+public class AlarmReceiver extends BroadcastReceiver { // 继承BroadcastReceiver类,用于接收广播,并且在接收到广播后启动AlarmAlertActivity
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        intent.setClass(context, AlarmAlertActivity.class);// 设置intent的类为AlarmAlertActivity,可以用于启动Activity
+
+        // 为intent对象添加一个标志，表示它将启动一个新的任务栈
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        context.startActivity(intent);// 启动Activity
+    }
+}

other/07_210340143.高源_代码标注/ui/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;
+
+// 指定每个列表项的布局模板，指定Cursor中的每个字段应该绑定到那些视图上
+// 以文件夹的形式展现给用户
+public class FoldersListAdapter extends CursorAdapter {
+    // 指定查询时返回的列，NoteColumns是一个接口
+    public static final String[] PROJECTION = {
+            NoteColumns.ID,
+            NoteColumns.SNIPPET
+    };
+
+    // 定义查询文件夹表是返回的列的索引
+    public static final int ID_COLUMN = 0;
+    public static final int NAME_COLUMN = 1;
+
+    // 在列表视图中显示文件夹数据
+    public FoldersListAdapter(Context context, Cursor c) {
+        super(context, c);
+        // TODO Auto-generated constructor stub
+    }
+
+    // 创建一个新视图，并初始化子标签
+    @Override
+    public View newView(Context context, Cursor cursor, ViewGroup parent) {
+        return new FolderListItem(context);// 返回一个FolderListItem对象，该对象继承自LinearLayout，用于显示文件夹名称
+    }
+
+    // 用于绑定视图和数据
+    @Override
+    public void bindView(View view, Context context, Cursor cursor) {
+        // 判断视图对象是否为 FolderListItem 的实例
+        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);// 获取文件夹名称，如果是根文件夹，则显示“上一级”，否则显示文件夹名称
+            ((FolderListItem) view).bind(folderName);// 将获取到的文件夹名称设置到FolderListItem对象中
+        }
+    }
+
+    // 获取对应文件夹名称
+    public String getFolderName(Context context, int position) {
+        Cursor cursor = (Cursor) getItem(position);
+        // 根据文件夹id获取文件夹的名称
+        return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
+                .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
+    }
+
+    // 用于显示文件夹名称
+    private class FolderListItem extends LinearLayout {// 继承自LinearLayout，用于显示文件夹名称，该类只有一个TextView对象
+        private TextView mName;// 用于显示文件夹名称，该类只有一个TextView对象
+
+        public FolderListItem(Context context) {// 构造函数
+            super(context);
+            // 将布局文件加载到当前视图
+            inflate(context, R.layout.folder_list_item, this);
+            // 将获取到的TextView对象赋值给mName
+            mName = (TextView) findViewById(R.id.tv_folder_name);
+        }
+
+        // 将给定的名称设置到mName中
+        public void bind(String name) {
+            mName.setText(name);
+        }
+    }
+
+}

other/07_210340143.高源_代码标注/ui/NoteEditActivity.java

@@ -71,7 +71,6 @@ import java.util.Map;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-
 public class NoteEditActivity extends Activity implements OnClickListener,
         NoteSettingChangedListener, OnTextViewChangeListener {
     // 头部视图空间
@@ -176,7 +175,8 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     }
 
     /**
-     * Current activity may be killed when the memory is low. Once it is killed, for another time
+     * Current activity may be killed when the memory is low. Once it is killed, for
+     * another time
      * user load this activity, we should restore the former state
      */
     // 为防止内存不足时程序的终止，在这里有一个保存现场的函数
@@ -200,12 +200,13 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     }
 
     // 用于返回活动初始化状态
-    private boolean initActivityState(Intent intent) {
+    private boolean initActivityState(Intent intent) { // 这是一个初始化活动状态的函数， 用于在活动创建时执行一些操作
         /**
-         * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id,
+         * If the user specified the {@link Intent#ACTION_VIEW} but not provided with
+         * id,
          * then jump to the NotesListActivity
          */
-        mWorkingNote = null;
+        mWorkingNote = null; // 将mWorkingNote置空
         if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) {
             long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0);
             mUserQuery = "";
@@ -221,7 +222,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             // 如果在内容提供者中，noteId对应的笔记不可见或者不是笔记类型
             if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) {
                 Intent jump = new Intent(this, NotesListActivity.class);
-                //程序将跳转到上面声明的intent——jump
+                // 程序将跳转到上面声明的intent——jump
                 startActivity(jump);
                 showToast(R.string.error_note_not_exist);
                 finish();
@@ -240,7 +241,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             getWindow().setSoftInputMode(
                     WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN
                             | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
-        } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
+        } else if (TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) { // 如果用户指定的动作为Intent.ACTION_INSERT_OR_EDIT
             // New note
             long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);
             int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,
@@ -305,14 +306,14 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
             switchToListMode(mWorkingNote.getContent());
         } else {
-            mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));
-            mNoteEditor.setSelection(mNoteEditor.getText().length());
+            mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); // 设置笔记编辑器的文字
+            mNoteEditor.setSelection(mNoteEditor.getText().length());// 设置光标位置
         }
         for (Integer id : sBgSelectorSelectionMap.keySet()) {
-            findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE);
+            findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE);// 设置背景选择器不可见
         }
-        mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());
-        mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());
+        mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); // 设置标题背景
+        mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());// 设置笔记编辑器的背景
 
         mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this,
                 mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE
@@ -320,7 +321,8 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                         | DateUtils.FORMAT_SHOW_YEAR));
 
         /**
-         * TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker
+         * TODO: Add the menu for setting alert. Currently disable it because the
+         * DateTimePicker
          * is not ready
          */
         showAlertHeader();
@@ -345,7 +347,8 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             // 如果当前的笔记没有闹钟提醒，就将警告日期文本和警告图标设置为不可见
             mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE);
             mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE);
-        };
+        }
+        ;
     }
 
     @Override
@@ -355,15 +358,15 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     }
 
     @Override
-    protected void onSaveInstanceState(Bundle outState) {
+    protected void onSaveInstanceState(Bundle outState) {// 保存当前的工作笔记的id
         super.onSaveInstanceState(outState);
         /**
          * For new note without note id, we should firstly save it to
          * generate a id. If the editing note is not worth saving, there
          * is no id which is equivalent to create new note
          */
-        //在创建一个新的标签时，先在数据库中匹配
-        //如果不存在，那么先在数据库中存储
+        // 在创建一个新的标签时，先在数据库中匹配
+        // 如果不存在，那么先在数据库中存储
         if (!mWorkingNote.existInDatabase()) {
             saveNote();
         }
@@ -371,7 +374,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState");
     }
 
-    //用于分发触摸事件到合适的视图中
+    // 用于分发触摸事件到合适的视图中
     @Override
     public boolean dispatchTouchEvent(MotionEvent ev) {
         // 判断当前笔记的颜色选择器在屏幕上是否可见，且在可触控范围内
@@ -392,7 +395,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
 
     // 对屏幕触控的坐标进行操作
     private boolean inRangeOfView(View view, MotionEvent ev) {
-        int []location = new int[2];
+        int[] location = new int[2];
         view.getLocationOnScreen(location);
         int x = location[0];
         int y = location[1];
@@ -406,7 +409,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         return true;
     }
 
-    //对标签各项属性内容的初始化
+    // 对标签各项属性内容的初始化
     private void initResources() {
         mHeadViewPanel = findViewById(R.id.note_title);
         mNoteHeaderHolder = new HeadViewHolder();
@@ -423,12 +426,13 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             iv.setOnClickListener(this);
         }
 
-        //对字体大小的选择
+        // 对字体大小的选择
         mFontSizeSelector = findViewById(R.id.font_size_selector);
         for (int id : sFontSizeBtnsMap.keySet()) {
             View view = findViewById(id);
             view.setOnClickListener(this);
-        };
+        }
+        ;
         mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
         mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);
         /**
@@ -436,7 +440,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
          * The id may larger than the length of resources, in this case,
          * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
          */
-        if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) {
+        if (mFontSizeId >= TextAppearanceResources.getResourcesSize()) {
             mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE;
         }
         mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list);
@@ -446,7 +450,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     protected void onPause() {
         super.onPause();
         // 尝试保存当前笔记数据，并判断是否保持成功
-        if(saveNote()) {
+        if (saveNote()) {
             Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length());
         }
         // 清除一些设置状态
@@ -481,7 +485,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (id == R.id.btn_set_bg_color) {
             mNoteBgColorSelector.setVisibility(View.VISIBLE);
             findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
-                    -                    View.VISIBLE);
+                    -View.VISIBLE);
         } else if (sBgSelectorBtnsMap.containsKey(id)) {
             findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
                     View.GONE);
@@ -506,7 +510,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     // 当按下返回键时执行操作
     @Override
     public void onBackPressed() {
-        if(clearSettingState()) {
+        if (clearSettingState()) {
             return;
         }
 
@@ -602,8 +606,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                 break;
             case R.id.menu_list_mode:
                 // 根据当前笔记是否是清单模式，切换到相反的模式，并更新笔记的清单模式属性
-                mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ?
-                        TextNote.MODE_CHECK_LIST : 0);
+                mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ? TextNote.MODE_CHECK_LIST : 0);
                 break;
             case R.id.menu_share:
                 getWorkingText();
@@ -635,7 +638,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         d.setOnDateTimeSetListener(new OnDateTimeSetListener() {
             // 根据用户选择的日期时间，设置当前笔记的提醒日期，并更新数据库
             public void OnDateTimeSet(AlertDialog dialog, long date) {
-                mWorkingNote.setAlertDate(date	, true);
+                mWorkingNote.setAlertDate(date, true);
             }
         });
         // 显示对话框，让用户选择一个日期时间
@@ -720,7 +723,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE));
             showAlertHeader();
             // 判断是否设置提醒
-            if(!set) {
+            if (!set) {
                 // 取消之前设置的闹钟
                 alarmManager.cancel(pendingIntent);
             } else {
@@ -756,7 +759,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
 
         mEditTextList.removeViewAt(index);
         NoteEditText edit = null;
-        if(index == 0) {
+        if (index == 0) {
             edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById(
                     R.id.et_edit_text);
         } else {
@@ -769,7 +772,8 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         edit.setSelection(length);
     }
 
-    /* 在用户在某个文本编辑器中按下回车键时，创建一个新的文本编辑器，
+    /*
+     * 在用户在某个文本编辑器中按下回车键时，创建一个新的文本编辑器，
      * 并将当前的文本内容分割到两个文本编辑器中。
      * 实现在笔记应用中输入多行文本。
      */
@@ -777,7 +781,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         /**
          * Should not happen, check for debug
          */
-        if(index > mEditTextList.getChildCount()) {
+        if (index > mEditTextList.getChildCount()) {
             Log.e(TAG, "Index out of mEditTextList boundrary, should not happen");
         }
 
@@ -798,7 +802,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         String[] items = text.split("\n");
         int index = 0;
         for (String item : items) {
-            if(!TextUtils.isEmpty(item)) {
+            if (!TextUtils.isEmpty(item)) {
                 mEditTextList.addView(getListItem(item, index));
                 index++;
             }
@@ -820,7 +824,8 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             while (m.find(start)) {
                 spannable.setSpan(
                         new BackgroundColorSpan(this.getResources().getColor(
-                                R.color.user_query_highlight)), m.start(), m.end(),
+                                R.color.user_query_highlight)),
+                        m.start(), m.end(),
                         Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
                 start = m.end();
             }
@@ -866,7 +871,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             Log.e(TAG, "Wrong index, should not happen");
             return;
         }
-        if(hasText) {
+        if (hasText) {
             mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE);
         } else {
             mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.GONE);

other/07_210340143.高源_代码标注/ui/NoteEditText.java

@@ -0,0 +1,233 @@
+/*
+ * 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，设置标签设置文本框
+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
+    public interface OnTextViewChangeListener {
+        /**
+         * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
+         * and the text is null
+         */
+        void onEditTextDelete(int index, String text);
+
+        /**
+         * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
+         * happen
+         */
+        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) {
+        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;
+    }
+
+    // 初始化便签
+    public NoteEditText(Context context, AttributeSet attrs) {
+        super(context, attrs, android.R.attr.editTextStyle);
+    }
+
+    public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        // TODO Auto-generated constructor stub
+    }
+
+    // 根据用户触摸的位置，获取对应的文本偏移量，并设置为选择状态。
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        switch (event.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+
+                int x = (int) event.getX();
+                int y = (int) event.getY();
+                x -= getTotalPaddingLeft();
+                y -= getTotalPaddingTop();
+                x += getScrollX();
+                y += getScrollY();
+
+                Layout layout = getLayout();
+                int line = layout.getLineForVertical(y);
+                int off = layout.getOffsetForHorizontal(line, x);
+                Selection.setSelection(getText(), off);
+                break;
+        }
+
+        return super.onTouchEvent(event);
+    }
+
+    // 处理用户按下一个键盘按键时会触发 的事件
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        switch (keyCode) {
+            case KeyEvent.KEYCODE_ENTER:
+                if (mOnTextViewChangeListener != null) {
+                    return false;
+                }
+                break;
+            case KeyEvent.KEYCODE_DEL:
+                mSelectionStartBeforeDelete = getSelectionStart();
+                break;
+            default:
+                break;
+        }
+        return super.onKeyDown(keyCode, event);
+    }
+
+    // 处理用户松开一个键盘按键时会触发 的事件
+    @Override
+    public boolean onKeyUp(int keyCode, KeyEvent event) {
+        switch (keyCode) {
+            case KeyEvent.KEYCODE_DEL:
+                // 如果被修改过
+                if (mOnTextViewChangeListener != null) {
+                    // 如果被修改过且文档不为空
+                    if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
+                        mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
+                        return true;
+                    }
+                } else {
+                    Log.d(TAG, "OnTextViewChangeListener was not seted");
+                }
+                break;
+            case KeyEvent.KEYCODE_ENTER:
+                if (mOnTextViewChangeListener != null) {
+                    int selectionStart = getSelectionStart();
+                    String text = getText().subSequence(selectionStart, length()).toString();
+                    setText(getText().subSequence(0, selectionStart));
+                    mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);
+                } else {
+                    Log.d(TAG, "OnTextViewChangeListener was not seted");
+                }
+                break;
+            default:
+                break;
+        }
+        return super.onKeyUp(keyCode, event);
+    }
+
+    // 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
+    @Override
+    protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
+        if (mOnTextViewChangeListener != null) {
+            // 获取到焦点并且文本不为空
+            if (!focused && TextUtils.isEmpty(getText())) {
+                mOnTextViewChangeListener.onTextChange(mIndex, false);
+            } else {
+                mOnTextViewChangeListener.onTextChange(mIndex, true);
+            }
+        }
+        super.onFocusChanged(focused, direction, previouslyFocusedRect);
+    }
+
+    // 生成上下文菜单
+    @Override
+    protected void onCreateContextMenu(ContextMenu menu) {
+        // 如果有文本存在
+        if (getText() instanceof Spanned) {
+            int selStart = getSelectionStart();
+            int selEnd = getSelectionEnd();
+
+            int min = Math.min(selStart, selEnd);
+            int max = Math.max(selStart, selEnd);
+
+            final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
+            if (urls.length == 1) {
+                int defaultResId = 0;
+                for (String schema : sSchemaActionResMap.keySet()) {
+                    if (urls[0].getURL().indexOf(schema) >= 0) {
+                        defaultResId = sSchemaActionResMap.get(schema);
+                        break;
+                    }
+                }
+
+                if (defaultResId == 0) {
+                    defaultResId = R.string.note_link_other;
+                }
+                // 建立菜单
+                menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
+                        new OnMenuItemClickListener() {
+                            public boolean onMenuItemClick(MenuItem item) {
+                                // goto a new intent
+                                urls[0].onClick(NoteEditText.this);
+                                return true;
+                            }
+                        });
+            }
+        }
+        super.onCreateContextMenu(menu);
+    }
+}

other/07_210340143.高源_代码标注/ui/NotesListActivity.java

@@ -115,7 +115,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
 
     private long mCurrentFolderId;
 
-    private ContentResolver mContentResolver;
+    private ContentResolver mContentResolver;// 用于操作数据库
 
     private ModeCallback mModeCallBack;
 
@@ -123,14 +123,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
 
     public static final int NOTES_LISTVIEW_SCROLL_RATE = 30;
 
-    private NoteItemData mFocusNoteDataItem;
+    private NoteItemData mFocusNoteDataItem;// 当前选中的item
 
-    private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?";
+    private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?";// 是否是文件夹
 
     private static final String ROOT_FOLDER_SELECTION = "(" + NoteColumns.TYPE + "<>"
             + Notes.TYPE_SYSTEM + " AND " + NoteColumns.PARENT_ID + "=?)" + " OR ("
             + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER + " AND "
-            + NoteColumns.NOTES_COUNT + ">0)";
+            + NoteColumns.NOTES_COUNT + ">0)";// 是否是根目录,根目录下的文件夹和文件,以及通话记录文件夹
 
     private final static int REQUEST_CODE_OPEN_NODE = 102;
     private final static int REQUEST_CODE_NEW_NODE = 103;
@@ -167,7 +167,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                 if (in != null) {
                     InputStreamReader isr = new InputStreamReader(in);
                     BufferedReader br = new BufferedReader(isr);
-                    char [] buf = new char[1024];
+                    char[] buf = new char[1024];
                     int len = 0;
                     while ((len = br.read(buf)) > 0) {
                         sb.append(buf, 0, len);
@@ -180,7 +180,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                 e.printStackTrace();
                 return;
             } finally {
-                if(in != null) {
+                if (in != null) {
                     try {
                         in.close();
                     } catch (IOException e) {
@@ -258,7 +258,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
             mDropDownMenu = new DropdownMenu(NotesListActivity.this,
                     (Button) customView.findViewById(R.id.selection_menu),
                     R.menu.note_list_dropdown);
-            mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){
+            mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
                 public boolean onMenuItemClick(MenuItem item) {
                     mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected());
                     updateMenu();
@@ -337,7 +337,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                     builder.show();
                     break;
                 case R.id.move:
-                    startQueryDestinationFolders();
+                    startQueryDestinationFolders();// 是否需要查询,如果不需要,直接调用startMove
                     break;
                 default:
                     return false;
@@ -346,7 +346,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         }
     }
 
-    private class NewNoteOnTouchListener implements OnTouchListener {
+    private class NewNoteOnTouchListener implements OnTouchListener {// 为了解决点击新建按钮时,点击到下面的item的问题
 
         public boolean onTouch(View v, MotionEvent event) {
             switch (event.getAction()) {
@@ -408,7 +408,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
 
     };
 
-    private void startAsyncNotesListQuery() {
+    private void startAsyncNotesListQuery() {// 查询数据,并显示
         String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
                 : NORMAL_SELECTION;
         mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
@@ -417,7 +417,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                 }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
     }
 
-    private final class BackgroundQueryHandler extends AsyncQueryHandler {
+    private final class BackgroundQueryHandler extends AsyncQueryHandler {// 异步查询
         public BackgroundQueryHandler(ContentResolver contentResolver) {
             super(contentResolver);
         }
@@ -449,7 +449,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
 
             public void onClick(DialogInterface dialog, int which) {
                 DataUtils.batchMoveToFolder(mContentResolver,
-                        mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which));
+                        mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which));// 为了能够在子文件夹中移动便签,这里需要使用adapter.getItemId(which)而不是which
                 Toast.makeText(
                         NotesListActivity.this,
                         getString(R.string.format_move_notes_to_folder,
@@ -469,7 +469,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE);
     }
 
-    private void batchDelete() {
+    private void batchDelete() {// 批量删除,这里的删除是指移动到回收站
         new AsyncTask<Void, Void, HashSet<AppWidgetAttribute>>() {
             protected HashSet<AppWidgetAttribute> doInBackground(Void... unused) {
                 HashSet<AppWidgetAttribute> widgets = mNotesListAdapter.getSelectedWidget();
@@ -506,7 +506,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         }.execute();
     }
 
-    private void deleteFolder(long folderId) {
+    private void deleteFolder(long folderId) {// 删除文件夹
         if (folderId == Notes.ID_ROOT_FOLDER) {
             Log.e(TAG, "Wrong folder id, should not happen " + folderId);
             return;
@@ -579,7 +579,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);
     }
 
-    private void showCreateOrModifyFolderDialog(final boolean create) {
+    private void showCreateOrModifyFolderDialog(final boolean create) {// 创建或修改文件夹
         final AlertDialog.Builder builder = new AlertDialog.Builder(this);
         View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null);
         final EditText etName = (EditText) view.findViewById(R.id.et_foler_name);
@@ -605,7 +605,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         });
 
         final Dialog dialog = builder.setView(view).show();
-        final Button positive = (Button)dialog.findViewById(android.R.id.button1);
+        final Button positive = (Button) dialog.findViewById(android.R.id.button1);
         positive.setOnClickListener(new OnClickListener() {
             public void onClick(View v) {
                 hideSoftInput(etName);
@@ -623,7 +623,8 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                         values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER);
                         values.put(NoteColumns.LOCAL_MODIFIED, 1);
                         mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID
-                                + "=?", new String[] {
+                                + "=?",
+                                new String[] {
                                         String.valueOf(mFocusNoteDataItem.getId())
                                 });
                     }
@@ -727,7 +728,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     }
 
     @Override
-    public boolean onContextItemSelected(MenuItem item) {
+    public boolean onContextItemSelected(MenuItem item) {// 为了解决长按菜单无法弹出的问题，将此方法改为public
         if (mFocusNoteDataItem == null) {
             Log.e(TAG, "The long click data item is null");
             return false;
@@ -761,7 +762,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     }
 
     @Override
-    public boolean onPrepareOptionsMenu(Menu menu) {
+    public boolean onPrepareOptionsMenu(Menu menu) {// 是否显示,显示后的操作
         menu.clear();
         if (mState == ListEditState.NOTE_LIST) {
             getMenuInflater().inflate(R.menu.note_list, menu);
@@ -779,7 +780,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
+    public boolean onOptionsItemSelected(MenuItem item) {// 是否选中,选中后的操作
         switch (item.getItemId()) {
             case R.id.menu_new_folder: {
                 showCreateOrModifyFolderDialog(true);
@@ -824,7 +825,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         return true;
     }
 
-    private void exportNoteToText() {
+    private void exportNoteToText() {// 是否有SD卡，是否有权限
         final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this);
         new AsyncTask<Void, Void, Integer>() {
 
@@ -849,7 +850,8 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                             .getString(R.string.success_sdcard_export));
                     builder.setMessage(NotesListActivity.this.getString(
                             R.string.format_exported_file_location, backup
-                                    .getExportedTextFileName(), backup.getExportedTextFileDir()));
+                                    .getExportedTextFileName(),
+                            backup.getExportedTextFileDir()));
                     builder.setPositiveButton(android.R.string.ok, null);
                     builder.show();
                 } else if (result == BackupUtils.STATE_SYSTEM_ERROR) {
@@ -866,17 +868,17 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
         }.execute();
     }
 
-    private boolean isSyncMode() {
+    private boolean isSyncMode() {// 是否同步模式
         return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
     }
 
-    private void startPreferenceActivity() {
+    private void startPreferenceActivity() {// 启动设置界面
         Activity from = getParent() != null ? getParent() : this;
         Intent intent = new Intent(from, NotesPreferenceActivity.class);
         from.startActivityIfNeeded(intent, -1);
     }
 
-    private class OnListItemClickListener implements OnItemClickListener {
+    private class OnListItemClickListener implements OnItemClickListener {// 列表点击事件
 
         public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
             if (view instanceof NotesListItem) {
@@ -917,10 +919,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
 
     }
 
-    private void startQueryDestinationFolders() {
+    private void startQueryDestinationFolders() {// 查询目标文件夹,用于移动笔记,复制笔记,删除笔记
         String selection = NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>? AND " + NoteColumns.ID + "<>?";
-        selection = (mState == ListEditState.NOTE_LIST) ? selection:
-            "(" + selection + ") OR (" + NoteColumns.ID + "=" + Notes.ID_ROOT_FOLDER + ")";
+        selection = (mState == ListEditState.NOTE_LIST) ? selection
+                : "(" + selection + ") OR (" + NoteColumns.ID + "=" + Notes.ID_ROOT_FOLDER + ")";// 如果是笔记列表,则不显示根目录,如果是子文件夹,则显示根目录,用于移动笔记
 
         mBackgroundQueryHandler.startQuery(FOLDER_LIST_QUERY_TOKEN,
                 null,
@@ -932,10 +934,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                         String.valueOf(Notes.ID_TRASH_FOLER),
                         String.valueOf(mCurrentFolderId)
                 },
-                NoteColumns.MODIFIED_DATE + " DESC");
+                NoteColumns.MODIFIED_DATE + " DESC");// 查询文件夹列表,按修改时间排序,最近修改的排在最前面
     }
 
-    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {// 长按进入多选模式
         if (view instanceof NotesListItem) {
             mFocusNoteDataItem = ((NotesListItem) view).getItemData();
             if (mFocusNoteDataItem.getType() == Notes.TYPE_NOTE && !mNotesListAdapter.isInChoiceMode()) {

other/07_210340143.高源_代码标注/ui/NotesListAdapter.java

@@ -0,0 +1,197 @@
+/*
+ * 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.util.Log;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CursorAdapter;
+
+import net.micode.notes.data.Notes;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+
+// 用于创建笔记应用的列表适配器
+public class NotesListAdapter extends CursorAdapter {
+    private static final String TAG = "NotesListAdapter";
+    private Context mContext;
+    private HashMap<Integer, Boolean> mSelectedIndex;
+    private int mNotesCount;
+    private boolean mChoiceMode;
+
+    public static class AppWidgetAttribute {
+        public int widgetId;
+        public int widgetType;
+    };
+
+    public NotesListAdapter(Context context) {
+        super(context, null);
+        mSelectedIndex = new HashMap<Integer, Boolean>();
+        mContext = context;
+        mNotesCount = 0;
+    }
+
+    @Override
+    public View newView(Context context, Cursor cursor, ViewGroup parent) {
+        return new NotesListItem(context);
+    }
+
+    // 用于绑定视图和数据
+    @Override
+    public void bindView(View view, Context context, Cursor cursor) {
+        if (view instanceof NotesListItem) {
+            NoteItemData itemData = new NoteItemData(context, cursor);
+            ((NotesListItem) view).bind(context, itemData, mChoiceMode,
+                    isSelectedItem(cursor.getPosition()));
+        }
+    }
+
+    // 设置勾选框，并更新视图
+    public void setCheckedItem(final int position, final boolean checked) {
+        mSelectedIndex.put(position, checked);
+        notifyDataSetChanged();
+    }
+
+    // 判断单选按钮是否勾选
+    public boolean isInChoiceMode() {
+        return mChoiceMode;
+    }
+
+    // 设置单项选项框
+    public void setChoiceMode(boolean mode) {
+        mSelectedIndex.clear();
+        mChoiceMode = mode;
+    }
+
+    // 根据参数checked，选择或取消选择所有的便签项
+    public void selectAll(boolean checked) {
+        Cursor cursor = getCursor();
+        for (int i = 0; i < getCount(); i++) {
+            if (cursor.moveToPosition(i)) {
+                if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) {
+                    setCheckedItem(i, checked);
+                }
+            }
+        }
+    }
+
+    // 获取所有选中的项的id
+    public HashSet<Long> getSelectedItemIds() {
+        HashSet<Long> itemSet = new HashSet<Long>();// 创建一个HashSet对象,用于存放选中的项的id
+        for (Integer position : mSelectedIndex.keySet()) {
+            if (mSelectedIndex.get(position) == true) {
+                Long id = getItemId(position);
+                if (id == Notes.ID_ROOT_FOLDER) {
+                    Log.d(TAG, "Wrong item id, should not happen");
+                } else {
+                    itemSet.add(id);
+                }
+            }
+        }
+
+        return itemSet;// 返回所有选中的项的id
+    }
+
+    // 获取所有选中的项的小部件属性
+    public HashSet<AppWidgetAttribute> getSelectedWidget() {
+        HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>();
+        for (Integer position : mSelectedIndex.keySet()) {
+            if (mSelectedIndex.get(position) == true) {
+                Cursor c = (Cursor) getItem(position);
+                if (c != null) {
+                    AppWidgetAttribute widget = new AppWidgetAttribute();
+                    NoteItemData item = new NoteItemData(mContext, c);
+                    widget.widgetId = item.getWidgetId();
+                    widget.widgetType = item.getWidgetType();
+                    itemSet.add(widget);
+                    /**
+                     * Don't close cursor here, only the adapter could close it
+                     */
+                } else {
+                    Log.e(TAG, "Invalid cursor");
+                    return null;
+                }
+            }
+        }
+        return itemSet;
+    }
+
+    // 获取选中的项的数量，并返回一个整数。
+    public int getSelectedCount() {
+        Collection<Boolean> values = mSelectedIndex.values();
+        if (null == values) {
+            return 0;
+        }
+        Iterator<Boolean> iter = values.iterator();
+        int count = 0;
+        while (iter.hasNext()) {
+            if (true == iter.next()) {
+                count++;
+            }
+        }
+        return count;
+    }
+
+    // 判断是否所有项都被选中
+    public boolean isAllSelected() {
+        int checkedCount = getSelectedCount();
+        return (checkedCount != 0 && checkedCount == mNotesCount);
+    }
+
+    // 判断是否被选中
+    public boolean isSelectedItem(final int position) {
+        if (null == mSelectedIndex.get(position)) {
+            return false;
+        }
+        return mSelectedIndex.get(position);
+    }
+
+    // 内容发生变化时，重新计算便签数量
+    @Override
+    protected void onContentChanged() {
+        super.onContentChanged();
+        calcNotesCount();
+    }
+
+    // 光标发生变动时，回调该函数计算便签数量
+    @Override
+    public void changeCursor(Cursor cursor) {
+        super.changeCursor(cursor);
+        calcNotesCount();
+    }
+
+    // 计算便签数量
+    private void calcNotesCount() {
+        mNotesCount = 0;
+        for (int i = 0; i < getCount(); i++) {
+            Cursor c = (Cursor) getItem(i);
+            if (c != null) {
+                if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) {
+                    mNotesCount++;
+                }
+            } else {
+                Log.e(TAG, "Invalid cursor");
+                return;
+            }
+        }
+    }
+}

other/07_210340143.高源_代码标注/ui/NotesPreferenceActivity.java

@@ -0,0 +1,413 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.ui;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.app.ActionBar;
+import android.app.AlertDialog;
+import android.content.BroadcastReceiver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceClickListener;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceCategory;
+import android.text.TextUtils;
+import android.text.format.DateFormat;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import net.micode.notes.R;
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.gtask.remote.GTaskSyncService;
+
+public class NotesPreferenceActivity extends PreferenceActivity {
+    public static final String PREFERENCE_NAME = "notes_preferences";
+
+    public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name";
+
+    public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time";
+
+    public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear";
+
+    private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key";
+
+    private static final String AUTHORITIES_FILTER_KEY = "authorities";
+
+    private PreferenceCategory mAccountCategory;
+
+    private GTaskReceiver mReceiver;
+
+    private Account[] mOriAccounts;
+
+    private boolean mHasAddedAccount;
+
+    // 在活动创建时执行一些初始化操作
+    @Override
+    protected void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+
+        /* using the app icon for navigation */
+        getActionBar().setDisplayHomeAsUpEnabled(true);
+
+        // 从xml文件中加载活动的偏好设置
+        addPreferencesFromResource(R.xml.preferences);
+        mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);
+        mReceiver = new GTaskReceiver();
+        IntentFilter filter = new IntentFilter();
+        filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME);
+        registerReceiver(mReceiver, filter);
+
+        mOriAccounts = null;
+        // 从xml文件中加载了一个视图，并赋值给header这个局部变量
+        View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);
+        // 将这个视图添加到列表的头部
+        getListView().addHeaderView(header, null, true);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        // need to set sync account automatically if user has added a new
+        // account
+        if (mHasAddedAccount) {
+            Account[] accounts = getGoogleAccounts();
+            if (mOriAccounts != null && accounts.length > mOriAccounts.length) {
+                for (Account accountNew : accounts) {
+                    boolean found = false;
+                    for (Account accountOld : mOriAccounts) {
+                        if (TextUtils.equals(accountOld.name, accountNew.name)) {
+                            found = true;
+                            break;
+                        }
+                    }
+                    if (!found) {
+                        setSyncAccount(accountNew.name);
+                        break;
+                    }
+                }
+            }
+        }
+        // 刷新用户界面
+        refreshUI();
+    }
+
+    // 在活动销毁时执行一些清理操作
+    @Override
+    protected void onDestroy() {
+        if (mReceiver != null) {
+            unregisterReceiver(mReceiver);
+        }
+        super.onDestroy();
+    }
+
+    // 加载账户相关的偏好设置
+    private void loadAccountPreference() {
+        mAccountCategory.removeAll();
+
+        Preference accountPref = new Preference(this);
+        final String defaultAccount = getSyncAccountName(this);
+        accountPref.setTitle(getString(R.string.preferences_account_title));
+        accountPref.setSummary(getString(R.string.preferences_account_summary));
+        accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
+            public boolean onPreferenceClick(Preference preference) {
+                if (!GTaskSyncService.isSyncing()) {
+                    if (TextUtils.isEmpty(defaultAccount)) {
+                        // the first time to set account
+                        showSelectAccountAlertDialog();
+                    } else {
+                        // if the account has already been set, we need to promp
+                        // user about the risk
+                        showChangeAccountConfirmAlertDialog();
+                    }
+                } else {
+                    Toast.makeText(NotesPreferenceActivity.this,
+                            R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT)
+                            .show();
+                }
+                return true;
+            }
+        });
+
+        mAccountCategory.addPreference(accountPref);
+    }
+
+    // 加载同步按钮和同步状态的显示
+    private void loadSyncButton() {
+        Button syncButton = (Button) findViewById(R.id.preference_sync_button);
+        TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
+
+        // set button state
+        if (GTaskSyncService.isSyncing()) {
+            syncButton.setText(getString(R.string.preferences_button_sync_cancel));
+            syncButton.setOnClickListener(new View.OnClickListener() {
+                public void onClick(View v) {
+                    GTaskSyncService.cancelSync(NotesPreferenceActivity.this);
+                }
+            });
+        } else {
+            syncButton.setText(getString(R.string.preferences_button_sync_immediately));
+            syncButton.setOnClickListener(new View.OnClickListener() {
+                public void onClick(View v) {
+                    GTaskSyncService.startSync(NotesPreferenceActivity.this);
+                }
+            });
+        }
+        syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this)));
+
+        // set last sync time
+        if (GTaskSyncService.isSyncing()) {
+            lastSyncTimeView.setText(GTaskSyncService.getProgressString());
+            lastSyncTimeView.setVisibility(View.VISIBLE);
+        } else {
+            long lastSyncTime = getLastSyncTime(this);
+            if (lastSyncTime != 0) {
+                lastSyncTimeView.setText(getString(R.string.preferences_last_sync_time,
+                        DateFormat.format(getString(R.string.preferences_last_sync_time_format),
+                                lastSyncTime)));
+                lastSyncTimeView.setVisibility(View.VISIBLE);
+            } else {
+                lastSyncTimeView.setVisibility(View.GONE);
+            }
+        }
+    }
+
+    // 刷新界面
+    private void refreshUI() {
+        loadAccountPreference();
+        loadSyncButton();
+    }
+
+    // 显示账户选择的对话框并进行账户的设置
+    private void showSelectAccountAlertDialog() {
+        AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
+
+        // 设置标题以及子标题内容
+        View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
+        TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
+        titleTextView.setText(getString(R.string.preferences_dialog_select_account_title));
+        TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
+        subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips));
+
+        // 设置对话框的自定义标题
+        dialogBuilder.setCustomTitle(titleView);
+        dialogBuilder.setPositiveButton(null, null);
+
+        // 获取同步账户信息
+        Account[] accounts = getGoogleAccounts();
+        String defAccount = getSyncAccountName(this);
+
+        mOriAccounts = accounts;
+        mHasAddedAccount = false;
+
+        // 如果账户不为空
+        if (accounts.length > 0) {
+            CharSequence[] items = new CharSequence[accounts.length];
+            final CharSequence[] itemMapping = items;
+            int checkedItem = -1;
+            int index = 0;
+            for (Account account : accounts) {
+                if (TextUtils.equals(account.name, defAccount)) {
+                    checkedItem = index;
+                }
+                items[index++] = account.name;
+            }
+            // 在对话框建立一个单选的复选框
+            dialogBuilder.setSingleChoiceItems(items, checkedItem,
+                    new DialogInterface.OnClickListener() {
+                        // 设置点击后执行的事件，包括检录新同步账户和刷新标签界面
+                        public void onClick(DialogInterface dialog, int which) {
+                            setSyncAccount(itemMapping[which].toString());
+                            dialog.dismiss();
+                            refreshUI();
+                        }
+                    });
+        }
+
+        View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null);
+        dialogBuilder.setView(addAccountView);
+
+        final AlertDialog dialog = dialogBuilder.show();
+        addAccountView.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                mHasAddedAccount = true;
+                Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
+                intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] {
+                        "gmail-ls"
+                });
+                startActivityForResult(intent, -1);
+                dialog.dismiss();
+            }
+        });
+    }
+
+    // 显示一个更改账户的确认对话框
+    private void showChangeAccountConfirmAlertDialog() {
+        AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
+
+        // 根据同步修改的账户信息设置标题以及子标题的内容
+        View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
+        TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
+        titleTextView.setText(getString(R.string.preferences_dialog_change_account_title,
+                getSyncAccountName(this)));
+        TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
+        subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg));
+        // 设置对话框的自定义标题
+        dialogBuilder.setCustomTitle(titleView);
+
+        CharSequence[] menuItemArray = new CharSequence[] {
+                getString(R.string.preferences_menu_change_account),
+                getString(R.string.preferences_menu_remove_account),
+                getString(R.string.preferences_menu_cancel)
+        };
+        dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() {
+            public void onClick(DialogInterface dialog, int which) {
+                if (which == 0) {
+                    showSelectAccountAlertDialog();
+                } else if (which == 1) {
+                    removeSyncAccount();
+                    refreshUI();
+                }
+            }
+        });
+        dialogBuilder.show();
+    }
+
+    // 获取谷歌账户
+    private Account[] getGoogleAccounts() {
+        AccountManager accountManager = AccountManager.get(this);
+        return accountManager.getAccountsByType("com.google");
+    }
+
+    // 设置同步账户
+    private void setSyncAccount(String account) {
+        if (!getSyncAccountName(this).equals(account)) {
+            SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
+            SharedPreferences.Editor editor = settings.edit();
+            if (account != null) {
+                editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account);
+            } else {
+                editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
+            }
+            editor.commit();
+
+            // clean up last sync time
+            setLastSyncTime(this, 0);
+
+            // clean up local gtask related info
+            new Thread(new Runnable() {
+                public void run() {
+                    ContentValues values = new ContentValues();
+                    values.put(NoteColumns.GTASK_ID, "");
+                    values.put(NoteColumns.SYNC_ID, 0);
+                    getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
+                }
+            }).start();
+
+            Toast.makeText(NotesPreferenceActivity.this,
+                    getString(R.string.preferences_toast_success_set_accout, account),
+                    Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    // 删除同步账户
+    private void removeSyncAccount() {
+        SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
+        SharedPreferences.Editor editor = settings.edit();
+        if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) {
+            editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME);
+        }
+        if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) {
+            editor.remove(PREFERENCE_LAST_SYNC_TIME);
+        }
+        editor.commit();
+
+        // clean up local gtask related info
+        new Thread(new Runnable() {
+            public void run() {
+                ContentValues values = new ContentValues();
+                values.put(NoteColumns.GTASK_ID, "");
+                values.put(NoteColumns.SYNC_ID, 0);
+                getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
+            }
+        }).start();
+    }
+
+    // 获取同步账户名称
+    public static String getSyncAccountName(Context context) {
+        SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
+                Context.MODE_PRIVATE);
+        return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
+    }
+
+    // 设置最终同步时间
+    public static void setLastSyncTime(Context context, long time) {
+        SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
+                Context.MODE_PRIVATE);
+        SharedPreferences.Editor editor = settings.edit();
+        editor.putLong(PREFERENCE_LAST_SYNC_TIME, time);
+        editor.commit();
+    }
+
+    // 获取最终同步时间
+    public static long getLastSyncTime(Context context) {
+        SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
+                Context.MODE_PRIVATE);
+        return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0);
+    }
+
+    // 接收同步状态和信息
+    private class GTaskReceiver extends BroadcastReceiver {
+
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            refreshUI();
+            if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) {
+                TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
+                syncStatus.setText(intent
+                        .getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG));
+            }
+
+        }
+    }
+
+    // 处理菜单选项
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                Intent intent = new Intent(this, NotesListActivity.class);
+                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+                startActivity(intent);
+                return true;
+            default:
+                return false;
+        }
+    }
+}

other/07_210340146.郭德宁_代码标注/data/Notes.java

@@ -21,9 +21,9 @@ import android.net.Uri;
 public class Notes { // 定义类，给模块的其他类提供变量定义
         public static final String AUTHORITY = "micode_notes"; // 设置AUTHORITY
         public static final String TAG = "Notes"; // 设置TAG
-        public static final int TYPE_NOTE = 0;
-        public static final int TYPE_FOLDER = 1;
-        public static final int TYPE_SYSTEM = 2;
+        public static final int TYPE_NOTE = 0; // 设置便签类型
+        public static final int TYPE_FOLDER = 1; // 设置文件夹类型
+        public static final int TYPE_SYSTEM = 2; // 设置系统类型
 
         /**
          * Following IDs are system folders' identifiers
@@ -31,10 +31,10 @@ public class Notes { // 定义类，给模块的其他类提供变量定义
          * {@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;
-        public static final int ID_CALL_RECORD_FOLDER = -2;
-        public static final int ID_TRASH_FOLER = -3;
+        public static final int ID_ROOT_FOLDER = 0;// 根文件夹
+        public static final int ID_TEMPARAY_FOLDER = -1;// 临时文件夹
+        public static final int ID_CALL_RECORD_FOLDER = -2;// 通话记录文件夹
+        public static final int ID_TRASH_FOLER = -3; // 垃圾箱
 
         public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";// 设置提醒日期
         public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";
@@ -216,7 +216,7 @@ public class Notes { // 定义类，给模块的其他类提供变量定义
                  * Type : BLOB
                  * </P>
                  */
-                public static final String PICTURE = "picture"; // 图片****
+                public static final String PICTURE = "picture"; // 图片路径****
 
         }
 

other/07_210340146.郭德宁_代码标注/data/NotesDatabaseHelper.java

@@ -60,10 +60,10 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { // 该类为便签SQ
                     NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
                     NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
                     NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
-                    NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
+                    NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0," +
 
-                    NoteColumns.LOCKED + " INTEGER NOT NULL DEFAULT 0" +
-                    NoteColumns.PICTURE_URI + " TEXT NOT NULL DEFAULT ''," +
+                    NoteColumns.LOCKED + " INTEGER NOT NULL DEFAULT 0," +
+                    NoteColumns.PICTURE + " TEXT NOT NULL DEFAULT ''" +
 
                     ")";
 

other/07_210340146.郭德宁_代码标注/model/Note.java

@@ -0,0 +1,255 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.micode.notes.model;
+
+import android.content.ContentProviderOperation;
+import android.content.ContentProviderResult;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.OperationApplicationException;
+import android.net.Uri;
+import android.os.RemoteException;
+import android.util.Log;
+
+import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes.CallNote;
+import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.Notes.TextNote;
+
+import java.util.ArrayList;
+
+public class Note {// 便签类
+    private ContentValues mNoteDiffValues; // 用于保存便签修改值
+    private NoteData mNoteData; // 保存便签的数据
+    private static final String TAG = "Note"; // 设置TAG为Note
+
+    /**
+     * Create a new note id for adding a new note to databases
+     */
+    public static synchronized long getNewNoteId(Context context, long folderId) { // 为一个新的便签创建id返回数据库
+        // Create a new note in the database
+        ContentValues values = new ContentValues(); // 用于保存创建日期等字段的值
+        long createdTime = System.currentTimeMillis(); // 获取创建时间
+        values.put(NoteColumns.CREATED_DATE, createdTime);
+        values.put(NoteColumns.MODIFIED_DATE, createdTime);
+        values.put(NoteColumns.TYPE, Notes.TYPE_NOTE); // 设置便签类型为便签
+        values.put(NoteColumns.LOCAL_MODIFIED, 1);
+        values.put(NoteColumns.PARENT_ID, folderId);
+        Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values); // 将values插入数据库中，并返回uri
+
+        long noteId = 0;
+        try {
+            noteId = Long.valueOf(uri.getPathSegments().get(1)); // 解析uri获取新笔记id
+        } catch (NumberFormatException e) {
+            Log.e(TAG, "Get note id error :" + e.toString()); // 解析失败日志
+            noteId = 0;
+        }
+        if (noteId == -1) {
+            throw new IllegalStateException("Wrong note id:" + noteId); // 获取id出错，抛出异常
+        }
+        return noteId;
+    }
+
+    public Note() {
+        mNoteDiffValues = new ContentValues(); // 创建新对象
+        mNoteData = new NoteData(); // 创建新对象
+    }
+
+    public void setNoteValue(String key, String value) { // 设置便签的值
+        mNoteDiffValues.put(key, value); // key为属性，values为新值
+        mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 本地修改标识为1，标识被修改
+        mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 表示修改时间，用于服务器时间比较
+    }
+
+    public void setTextData(String key, String value) {
+        mNoteData.setTextData(key, value); // 添加键值对
+    } // 设置文本数据
+
+    public void setTextDataId(long id) {
+        mNoteData.setTextDataId(id);
+    } // 设置文本数据id
+
+    public long getTextDataId() {
+        return mNoteData.mTextDataId;
+    } // 获取文本数据id
+
+    public void setCallDataId(long id) {
+        mNoteData.setCallDataId(id);
+    } // 设置通讯数据id
+
+    public void setCallData(String key, String value) {
+        mNoteData.setCallData(key, value);
+    } // 设置通讯数据，添加键值对
+
+    public boolean isLocalModified() {
+        return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
+    } // 检查是否被修改
+
+    public boolean syncNote(Context context, long noteId) { // 用于同步到数据库中
+        if (noteId <= 0) {
+            throw new IllegalArgumentException("Wrong note id:" + noteId); // 抛出异常
+        }
+
+        if (!isLocalModified()) { // 判断是否修改过
+            return true; // 没修改则不需要同步
+        }
+
+        /**
+         * 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( // 打包并同步
+                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; // 表示同步失败
+        }
+
+        return true;
+    }
+
+    private class NoteData { // 私有内部类，用于便签数据管理
+        private long mTextDataId;
+
+        private ContentValues mTextDataValues;
+
+        private long mCallDataId;
+
+        private ContentValues mCallDataValues;
+
+        private static final String TAG = "NoteData";
+
+        public NoteData() { // 构造函数
+            mTextDataValues = new ContentValues(); // 保存便签文本
+            mCallDataValues = new ContentValues(); // 保存便签通讯记录
+            mTextDataId = 0;
+            mCallDataId = 0;
+        }
+
+        boolean isLocalModified() {
+            return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
+        } // 检查便签是否再本地修改
+
+        void setTextDataId(long id) {
+            if (id <= 0) {
+                throw new IllegalArgumentException("Text data id should larger than 0");
+            }
+            mTextDataId = id;
+        } // 设置便签文本标识符
+
+        void setCallDataId(long id) {
+            if (id <= 0) {
+                throw new IllegalArgumentException("Call data id should larger than 0");
+            }
+            mCallDataId = id;
+        } // 设置便签通讯标识符
+
+        void setCallData(String key, String value) {
+            mCallDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); // 更新修改状态
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); // 更新修改日期
+        } // 设置文本数据
+
+        void setTextData(String key, String value) { // 设置通讯数据
+            mTextDataValues.put(key, value);
+            mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
+        }
+
+        Uri pushIntoContentResolver(Context context, long noteId) { // 将文本数据与通讯数据添加到context
+            /**
+             * Check for safety
+             */
+            if (noteId <= 0) {
+                throw new IllegalArgumentException("Wrong note id:" + noteId); // 抛出异常
+            }
+
+            ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
+            ContentProviderOperation.Builder builder = null;
+
+            if (mTextDataValues.size() > 0) { // 检查文本数据
+                mTextDataValues.put(DataColumns.NOTE_ID, noteId); // 将便签id与数据值相关联
+                if (mTextDataId == 0) {
+                    mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE); // 并将键值对添加到mTextDataValues中
+                    Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
+                            mTextDataValues); // 插入新的数据行，保存返回的uri
+                    try {
+                        setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
+                    } catch (NumberFormatException e) {
+                        Log.e(TAG, "Insert new text data fail with noteId" + noteId); // 异常日志
+                        mTextDataValues.clear();
+                        return null;
+                    }
+                } else { // 表示需要更新现有数据行
+                    builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
+                            Notes.CONTENT_DATA_URI, mTextDataId));
+                    builder.withValues(mTextDataValues);
+                    operationList.add(builder.build());
+                }
+                mTextDataValues.clear(); // 清空mTextDataValues
+            }
+            if (mCallDataValues.size() > 0) { // 检查通讯数据，代码内容功能同上
+                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();
+            }
+
+            if (operationList.size() > 0) { // 检查operationList，对载入的操作进行批量提交
+                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;
+        }
+    }
+}

src/minotes/.gradle/buildOutputCleanup/cache.properties

@@ -0,0 +1,2 @@
+#Sun Jun 04 20:08:15 HKT 2023
+gradle.version=7.5

src/minotes/.idea/.gitignore

@@ -0,0 +1,3 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml

src/minotes/.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>

src/minotes/.idea/deploymentTargetDropDown.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetDropDown">
+    <targetSelectedWithDropDown>
+      <Target>
+        <type value="QUICK_BOOT_TARGET" />
+        <deviceKey>
+          <Key>
+            <type value="VIRTUAL_DEVICE_PATH" />
+            <value value="C:\Users\82590\.android\avd\Pixel_6_Pro_API_28_1.avd" />
+          </Key>
+        </deviceKey>
+      </Target>
+    </targetSelectedWithDropDown>
+    <timeTargetWasSelectedWithDropDown value="2023-06-03T16:26:33.294608400Z" />
+  </component>
+</project>

src/minotes/.idea/gradle.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="Embedded JDK" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

src/minotes/.idea/jarRepositories.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="BintrayJCenter" />
+      <option name="name" value="BintrayJCenter" />
+      <option name="url" value="https://jcenter.bintray.com/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="Google" />
+      <option name="name" value="Google" />
+      <option name="url" value="https://dl.google.com/dl/android/maven2/" />
+    </remote-repository>
+  </component>
+</project>

src/minotes/.idea/misc.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="11" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>

src/minotes/.idea/sonarlint/issuestore/0/8/08c35f02f11c35ae9ebf8db0a482054dfa1cf493

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+
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src/minotes/.idea/sonarlint/issuestore/3/2/32360bf24febc78f20db52498c7576b3d8650d56

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+java:S1319("`The type of "ids" should be an interface such as "Set" rather than the implementation "HashSet".(îîè“
+{
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+‰

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+java:S1118&":Add a private constructor to hide the implicit public one.(•ã P
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+java:S1155-">Use isEmpty() to check whether the collection is empty or not.(´¤”Ó
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+java:S2147F"DCombine this catch with the one at line 68, which has the same body.(æš©›
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+m
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src/minotes/.idea/sonarlint/issuestore/5/0/503adcf2a0be1ecdb94a15efba4433b6589877b9

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src/minotes/.idea/sonarlint/issuestore/5/d/5dfe6902d8ec740690f88d644e74362c3be08fad

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src/minotes/.idea/sonarlint/issuestore/f/9/f9f49497f95afd327db7a7a512612aa1089003d4

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src/minotes/.idea/sonarlint/issuestore/index.pb

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+;app/src/main/java/net/micode/notes/ui/NotesListAdapter.java,2\8\283f16cc23da56ca65616082bc810304d3511d0a
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+7app/src/main/java/net/micode/notes/ui/NoteItemData.java,0\8\08c35f02f11c35ae9ebf8db0a482054dfa1cf493
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+;app/src/main/java/net/micode/notes/ui/NoteEditActivity.java,5\7\577f30d26378ec8a2bd2e4a43f3c79b3f04c402c
+b
+2app/src/main/java/net/micode/notes/data/Notes.java,a\7\a7641cfac724321d508c2a284223a711011a93f5
+P
+ app/src/main/AndroidManifest.xml,8\c\8c55c3ccc257e5907959013f99656e4c8ec3903e
+<
+build.gradle,f\0\f07866736216be0ee2aba49e392191aeae700a35
+m
+=app/src/main/java/net/micode/notes/ui/FoldersListAdapter.java,f\9\f9f49497f95afd327db7a7a512612aa1089003d4
+p
+@app/src/main/java/net/micode/notes/gtask/remote/GTaskClient.java,4\5\4529b3a97b0f3b19b895aa06f23bed63ff38a312
+@
+app/build.gradle,f\4\f4a01d6a4fcb971362ec00a83903fd3902f52164
+l
+<app/src/main/java/net/micode/notes/ui/NotesListActivity.java,a\d\ad72331a1bed265bb9c0fe838faa74dbf69fce32

src/minotes/.idea/sonarlint/securityhotspotstore/index.pb

@@ -0,0 +1,41 @@
+
+d
+4app/src/main/java/net/micode/notes/data/Contact.java,9\a\9a3a19793537958b8b1b03a81985999e22705a2f
+7
+gradlew,5\b\5bbfa66edb4db3c7c33c5181f43510990d3307f9
+g
+7app/src/main/java/net/micode/notes/ui/NoteEditText.java,5\0\503adcf2a0be1ecdb94a15efba4433b6589877b9
+j
+:app/src/main/java/net/micode/notes/data/NotesProvider.java,6\a\6a65e747031f27aef20597b4181148a9fbf963d5
+b
+2app/src/main/java/net/micode/notes/model/Note.java,d\d\dd970bd8ce083850fca1d4d159647ccd110e57cb
+f
+6app/src/main/java/net/micode/notes/tool/DataUtils.java,3\2\32360bf24febc78f20db52498c7576b3d8650d56
+i
+9app/src/main/java/net/micode/notes/model/WorkingNote.java,8\7\876016634c6642b35109680ccac740dc8271b236
+p
+@app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java,1\e\1eb2363b523dbcae43d3c6e4790c64436af61b13
+r
+Bapp/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java,d\a\da57ce446af85bbd9aefee65e969869f0cff78b0
+h
+8app/src/main/java/net/micode/notes/ui/NotesListItem.java,5\d\5dfe6902d8ec740690f88d644e74362c3be08fad
+k
+;app/src/main/java/net/micode/notes/ui/NotesListAdapter.java,2\8\283f16cc23da56ca65616082bc810304d3511d0a
+g
+7app/src/main/java/net/micode/notes/ui/NoteItemData.java,0\8\08c35f02f11c35ae9ebf8db0a482054dfa1cf493
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+;app/src/main/java/net/micode/notes/ui/NoteEditActivity.java,5\7\577f30d26378ec8a2bd2e4a43f3c79b3f04c402c
+P
+ app/src/main/AndroidManifest.xml,8\c\8c55c3ccc257e5907959013f99656e4c8ec3903e
+b
+2app/src/main/java/net/micode/notes/data/Notes.java,a\7\a7641cfac724321d508c2a284223a711011a93f5
+<
+build.gradle,f\0\f07866736216be0ee2aba49e392191aeae700a35
+m
+=app/src/main/java/net/micode/notes/ui/FoldersListAdapter.java,f\9\f9f49497f95afd327db7a7a512612aa1089003d4
+p
+@app/src/main/java/net/micode/notes/gtask/remote/GTaskClient.java,4\5\4529b3a97b0f3b19b895aa06f23bed63ff38a312
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+app/build.gradle,f\4\f4a01d6a4fcb971362ec00a83903fd3902f52164
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+<app/src/main/java/net/micode/notes/ui/NotesListActivity.java,a\d\ad72331a1bed265bb9c0fe838faa74dbf69fce32

src/minotes/app/build.gradle

@@ -0,0 +1,24 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdk 24
+    buildToolsVersion "33.0.2"
+    useLibrary 'org.apache.http.legacy'
+    defaultConfig {
+        applicationId "net.micode.notes"
+        minSdkVersion 24
+        targetSdkVersion 24
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
+        }
+    }
+}
+
+dependencies {
+    implementation 'org.jetbrains:annotations:15.0'
+    implementation 'androidx.annotation:annotation-jvm:+'
+}

src/minotes/app/build/generated/source/buildConfig/debug/net/micode/notes/BuildConfig.java

@@ -0,0 +1,12 @@
+/**
+ * Automatically generated file. DO NOT MODIFY
+ */
+package net.micode.notes;
+
+public final class BuildConfig {
+  public static final boolean DEBUG = Boolean.parseBoolean("true");
+  public static final String APPLICATION_ID = "net.micode.notes";
+  public static final String BUILD_TYPE = "debug";
+  public static final int VERSION_CODE = 1;
+  public static final String VERSION_NAME = "0.1";
+}

src/minotes/app/build/intermediates/annotation_processor_list/debug/annotationProcessors.json

@@ -0,0 +1 @@
+{}

src/minotes/app/build/intermediates/apk_ide_redirect_file/debug/redirect.txt

@@ -0,0 +1,2 @@
+#- File Locator -
+listingFile=../../../outputs/apk/debug/output-metadata.json

src/minotes/app/build/intermediates/app_metadata/debug/app-metadata.properties

@@ -0,0 +1,2 @@
+appMetadataVersion=1.1
+androidGradlePluginVersion=7.4.2

src/minotes/app/build/intermediates/compatible_screen_manifest/debug/output-metadata.json

@@ -0,0 +1,10 @@
+{
+  "version": 3,
+  "artifactType": {
+    "type": "COMPATIBLE_SCREEN_MANIFEST",
+    "kind": "Directory"
+  },
+  "applicationId": "net.micode.notes",
+  "variantName": "debug",
+  "elements": []
+}