package net.micode.notes.model; public class WorkingNote { // Note for the working note private Note mNote; // Note Id private long mNoteId; // Note content private String mContent; // Note mode private int mMode; private long mAlertDate; private long mModifiedDate; private int mBgColorId; private int mWidgetId; private int mWidgetType; private long mFolderId; private Context mContext; private static final String TAG = "WorkingNote"; private boolean mIsDeleted; private NoteSettingChangedListener mNoteSettingStatusListener; // 声明 DATA_PROJECTION字符串数组 public static final String[] DATA_PROJECTION = new String[] { DataColumns.ID, DataColumns.CONTENT, DataColumns.MIME_TYPE, DataColumns.DATA1, DataColumns.DATA2, DataColumns.DATA3, DataColumns.DATA4, }; // 声明 NOTE_PROJECTION字符串数组 public static final String[] NOTE_PROJECTION = new String[] { NoteColumns.PARENT_ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID, NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE, NoteColumns.MODIFIED_DATE }; private static final int DATA_ID_COLUMN = 0; private static final int DATA_CONTENT_COLUMN = 1; private static final int DATA_MIME_TYPE_COLUMN = 2; private static final int DATA_MODE_COLUMN = 3; private static final int NOTE_PARENT_ID_COLUMN = 0; private static final int NOTE_ALERTED_DATE_COLUMN = 1; private static final int NOTE_BG_COLOR_ID_COLUMN = 2; private static final int NOTE_WIDGET_ID_COLUMN = 3; private static final int NOTE_WIDGET_TYPE_COLUMN = 4; private static final int NOTE_MODIFIED_DATE_COLUMN = 5; // New note construct public WorkingNote(Context context, long folderId) { mContext = context; mAlertDate = 0; mModifiedDate = System.currentTimeMillis(); mFolderId = folderId; mNote = new Note(); mNoteId = 0; mIsDeleted = false; mMode = 0; mWidgetType = Notes.TYPE_WIDGET_INVALIDE; } // WorkingNote的构造函数 // Existing note construct private WorkingNote(Context context, long noteId, long folderId) { mContext = context; mNoteId = noteId; mFolderId = folderId; mIsDeleted = false; mNote = new Note(); loadNote(); } // 加载Note // 通过数据库调用query函数找到第一个条目 private void loadNote() { Cursor cursor = mContext.getContentResolver().query( ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null, null, null); // 若存在,储存相应信息 if (cursor != null) { if (cursor.moveToFirst()) { mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN); mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN); mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN); mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN); mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN); mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN); } cursor.close(); // 若不存在,报错 } else { Log.e(TAG, "No note with id:" + mNoteId); throw new IllegalArgumentException("Unable to find note with id " + mNoteId); } loadNoteData(); } // 加载NoteData private void loadNoteData() { Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { String.valueOf(mNoteId) }, null); if (cursor != null) { // 查到信息不为空 if (cursor.moveToFirst()) { // 查看第一项是否存在 do { String type = cursor.getString(DATA_MIME_TYPE_COLUMN); if (DataConstants.NOTE.equals(type)) { mContent = cursor.getString(DATA_CONTENT_COLUMN); mMode = cursor.getInt(DATA_MODE_COLUMN); mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN)); } else if (DataConstants.CALL_NOTE.equals(type)) { mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN)); } else { Log.d(TAG, "Wrong note type with type:" + type); } } while (cursor.moveToNext());//查阅所有项,直到为空 } cursor.close(); } else { Log.e(TAG, "No data with id:" + mNoteId); throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId); } } // 创建空的Note // 传参:context,文件夹id,widget,背景颜色 public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId, int widgetType, int defaultBgColorId) { WorkingNote note = new WorkingNote(context, folderId); // 设定相关属性 note.setBgColorId(defaultBgColorId); note.setWidgetId(widgetId); note.setWidgetType(widgetType); return note; } public static WorkingNote load(Context context, long id) { return new WorkingNote(context, id, 0); } // 保存Note public synchronized boolean saveNote() { if (isWorthSaving()) { //是否值得保存 if (!existInDatabase()) { // 是否存在数据库中 if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) { Log.e(TAG, "Create new note fail with id:" + mNoteId); return false; } } mNote.syncNote(mContext, mNoteId); /** * Update widget content if there exist any widget of this note */ if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) { mNoteSettingStatusListener.onWidgetChanged(); } return true; } else { return false; } } // 是否在数据库中存在 public boolean existInDatabase() { return mNoteId > 0; } // 是否值得保存 private boolean isWorthSaving() { // 被删除,或(不在数据库中 内容为空),或 本地已保存过 if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent)) || (existInDatabase() && !mNote.isLocalModified())) { return false; } else { return true; } } // 设置mNoteSettingStatusListener public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) { mNoteSettingStatusListener = l; } // 设置AlertDate // 若 mAlertDate与data不同,则更改mAlertDate并设定NoteValue public void setAlertDate(long date, boolean set) { if (date != mAlertDate) { mAlertDate = date; mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate)); } if (mNoteSettingStatusListener != null) { mNoteSettingStatusListener.onClockAlertChanged(date, set); } } // 设定删除标记 public void markDeleted(boolean mark) { // 设定标记 mIsDeleted = mark; if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) { mNoteSettingStatusListener.onWidgetChanged(); // 调用mNoteSettingStatusListener的 onWidgetChanged方法 } } // 设定背景颜色 public void setBgColorId(int id) { if (id != mBgColorId) { //设定条件 id != mBgColorId mBgColorId = id; if (mNoteSettingStatusListener != null) { mNoteSettingStatusListener.onBackgroundColorChanged(); } mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id)); } } // 设定检查列表模式 // 参数:mode public void setCheckListMode(int mode) { if (mMode != mode) { //设定条件 mMode != mode if (mNoteSettingStatusListener != null) { mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode); } mMode = mode; mNote.setTextData(TextNote.MODE, String.valueOf(mMode)); } } // 设定WidgetType // 参数:type public void setWidgetType(int type) { if (type != mWidgetType) {//设定条件 type != mWidgetType mWidgetType = type; mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType)); // 调用Note的setNoteValue方法更改WidgetType } } // 设定WidgetId // 参数:id public void setWidgetId(int id) { if (id != mWidgetId) {//设定条件 id != mWidgetId mWidgetId = id; mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId)); // 调用Note的setNoteValue方法更改WidgetId } } // 设定WorkingTex // 参数:更改的text public void setWorkingText(String text) { if (!TextUtils.equals(mContent, text)) {//设定条件 mContent, text内容不同 mContent = text; mNote.setTextData(DataColumns.CONTENT, mContent); // 调用Note的setTextData方法更改WorkingText } } // 转变mNote的CallData及CallNote信息 // 参数:String phoneNumber, long callDate public void convertToCallNote(String phoneNumber, long callDate) { mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate)); mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber); mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER)); } // 判断是否有时钟题型 public boolean hasClockAlert() { return (mAlertDate > 0 ? true : false); } // 获取Content public String getContent() { return mContent; } // 获取AlertDate public long getAlertDate() { return mAlertDate; } // 获取ModifiedDate public long getModifiedDate() { return mModifiedDate; } // 获取背景颜色来源id public int getBgColorResId() { return NoteBgResources.getNoteBgResource(mBgColorId); } // 获取背景颜色id public int getBgColorId() { return mBgColorId; } // 获取标题背景颜色id public int getTitleBgResId() { return NoteBgResources.getNoteTitleBgResource(mBgColorId); } // 获取CheckListMode public int getCheckListMode() { return mMode; } // 获取便签id public long getNoteId() { return mNoteId; } // 获取文件夹id public long getFolderId() { return mFolderId; } // 获取WidgetId public int getWidgetId() { return mWidgetId; } // 获取WidgetType public int getWidgetType() { return mWidgetType; } // 创建接口 NoteSettingChangedListener,便签更新监视 // 为NoteEditActivity提供接口 // 提供函数有 public interface NoteSettingChangedListener { /** * Called when the background color of current note has just changed */ void onBackgroundColorChanged(); /** * Called when user set clock */ void onClockAlertChanged(long date, boolean set); /** * Call when user create note from widget */ void onWidgetChanged(); /** * Call when switch between check list mode and normal mode * @param oldMode is previous mode before change * @param newMode is new mode */ void onCheckListModeChanged(int oldMode, int newMode); } }