day02

model-WorkingNote.txt

@@ -124,7 +124,7 @@ public class WorkingNote {
         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() {
@@ -142,14 +142,14 @@ public class WorkingNote {
                 mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
             }
             cursor.close();
-        //若不存在，报错    
+        //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,
@@ -158,7 +158,8 @@ public class WorkingNote {
                 }, null);
 
         if (cursor != null) {
-            if (cursor.moveToFirst()) {
+            //查到信息不为空
+            if (cursor.moveToFirst()) {//查看第一项是否存在
                 do {
                     String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
                     if (DataConstants.NOTE.equals(type)) {
@@ -170,7 +171,7 @@ public class WorkingNote {
                     } else {
                         Log.d(TAG, "Wrong note type with type:" + type);
                     }
-                } while (cursor.moveToNext());
+                } while (cursor.moveToNext());//查询所有项，直到为空
             }
             cursor.close();
         } else {
@@ -178,10 +179,12 @@ public class WorkingNote {
             throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId);
         }
     }
-
+    //创建空的Note
+    //传参：context,文件夹id,widget,背景颜色
     public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
             int widgetType, int defaultBgColorId) {
         WorkingNote note = new WorkingNote(context, folderId);
+        //设定相关属性
         note.setBgColorId(defaultBgColorId);
         note.setWidgetId(widgetId);
         note.setWidgetType(widgetType);
@@ -191,10 +194,10 @@ public class WorkingNote {
     public static WorkingNote load(Context context, long id) {
         return new WorkingNote(context, id, 0);
     }
-
+    //保存Note
     public synchronized boolean saveNote() {
-        if (isWorthSaving()) {
+        if (isWorthSaving()) {//是否值得保存
-            if (!existInDatabase()) {
+            if (!existInDatabase()) {//是否存在数据库中
                 if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
                     Log.e(TAG, "Create new note fail with id:" + mNoteId);
                     return false;
@@ -216,12 +219,13 @@ public class WorkingNote {
             return false;
         }
     }
-
+    //是否存在数据库中
     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） ，或本地已经保存过
         if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
                 || (existInDatabase() && !mNote.isLocalModified())) {
             return false;
@@ -229,11 +233,12 @@ public class WorkingNote {
             return true;
         }
     }
-
+    //设置mNoteSettingStatuListener
     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;
@@ -243,17 +248,18 @@ public class WorkingNote {
             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();
+                mNoteSettingStatusListener.onWidgetChanged();//调用mNoteSettingStatusListener的 onWidgetChanged方法
         }
     }
-
+    //设定背景颜色
     public void setBgColorId(int id) {
-        if (id != mBgColorId) {
+        if (id != mBgColorId) {//设定条件id!=mBgColorId
             mBgColorId = id;
             if (mNoteSettingStatusListener != null) {
                 mNoteSettingStatusListener.onBackgroundColorChanged();
@@ -261,9 +267,10 @@ public class WorkingNote {
             mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
         }
     }
-
+    // 设定检查列表模式
+    // 参数：mode
     public void setCheckListMode(int mode) {
-        if (mMode != mode) {
+        if (mMode != mode) {//设定条件
             if (mNoteSettingStatusListener != null) {
                 mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
             }
@@ -271,82 +278,92 @@ public class WorkingNote {
             mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
         }
     }
-
+    // 设定WidgetType
+    // 参数：type
     public void setWidgetType(int type) {
-        if (type != mWidgetType) {
+        if (type != mWidgetType) {//设定条件
             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) {
+        if (id != mWidgetId) {//设定条件
             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)) {
             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