diff --git a/src/Notes-master/src/net/micode/notes/ui/DateTimePickerDialog.java b/src/Notes-master/src/net/micode/notes/ui/DateTimePickerDialog.java index b99ed29..278678a 100644 --- a/src/Notes-master/src/net/micode/notes/ui/DateTimePickerDialog.java +++ b/src/Notes-master/src/net/micode/notes/ui/DateTimePickerDialog.java @@ -75,16 +75,15 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener private void updateTitle(long date) { int flag = - DateUtils.FORMAT_SHOW_YEAR | - DateUtils.FORMAT_SHOW_DATE | - DateUtils.FORMAT_SHOW_TIME; - flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR; - setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); + DateUtils.FORMAT_SHOW_YEAR | // 显示年份 + DateUtils.FORMAT_SHOW_DATE | // 显示日期 + DateUtils.FORMAT_SHOW_TIME; // 显示时间 + flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR; // 根据是否为24小时制，设置时间格式化标志 + setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); // 使用DateUtils类将日期时间格式化为字符串，并设置为对话框的标题 } - public void onClick(DialogInterface arg0, int arg1) { - if (mOnDateTimeSetListener != null) { - mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); + if (mOnDateTimeSetListener != null) { // 判断是否设置了日期时间设置回调接口 + mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); // 调用回调接口的OnDateTimeSet方法，并传入当前对话框和日期时间的毫秒值 } } diff --git a/src/Notes-master/src/net/micode/notes/ui/DropdownMenu.java b/src/Notes-master/src/net/micode/notes/ui/DropdownMenu.java index 613dc74..1631f43 100644 --- a/src/Notes-master/src/net/micode/notes/ui/DropdownMenu.java +++ b/src/Notes-master/src/net/micode/notes/ui/DropdownMenu.java @@ -28,34 +28,34 @@ import android.widget.PopupMenu.OnMenuItemClickListener; import net.micode.notes.R; public class DropdownMenu { - private Button mButton; - private PopupMenu mPopupMenu; - private Menu mMenu; + private Button mButton; // 下拉菜单的按钮 + private PopupMenu mPopupMenu; // 弹出菜单 + private Menu mMenu; // 菜单 public DropdownMenu(Context context, Button button, int menuId) { - mButton = button; - mButton.setBackgroundResource(R.drawable.dropdown_icon); - mPopupMenu = new PopupMenu(context, mButton); - mMenu = mPopupMenu.getMenu(); - mPopupMenu.getMenuInflater().inflate(menuId, mMenu); + mButton = button; // 设置按钮 + mButton.setBackgroundResource(R.drawable.dropdown_icon); // 设置按钮的背景图为下拉图标 + mPopupMenu = new PopupMenu(context, mButton); // 创建弹出菜单，关联到按钮 + mMenu = mPopupMenu.getMenu(); // 获取菜单对象 + mPopupMenu.getMenuInflater().inflate(menuId, mMenu); // 通过菜单资源ID填充菜单条目 mButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { - mPopupMenu.show(); + mPopupMenu.show(); // 点击按钮时显示弹出菜单 } }); } public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) { if (mPopupMenu != null) { - mPopupMenu.setOnMenuItemClickListener(listener); + mPopupMenu.setOnMenuItemClickListener(listener); // 设置菜单条目点击监听器 } } public MenuItem findItem(int id) { - return mMenu.findItem(id); + return mMenu.findItem(id); // 根据菜单条目ID查找菜单条目对象 } public void setTitle(CharSequence title) { - mButton.setText(title); + mButton.setText(title); // 设置按钮的文本 } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/FoldersListAdapter.java b/src/Notes-master/src/net/micode/notes/ui/FoldersListAdapter.java index 96b77da..e661ca5 100644 --- a/src/Notes-master/src/net/micode/notes/ui/FoldersListAdapter.java +++ b/src/Notes-master/src/net/micode/notes/ui/FoldersListAdapter.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -28,11 +12,10 @@ import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; - public class FoldersListAdapter extends CursorAdapter { public static final String [] PROJECTION = { - NoteColumns.ID, - NoteColumns.SNIPPET + NoteColumns.ID, + NoteColumns.SNIPPET }; public static final int ID_COLUMN = 0; @@ -45,12 +28,14 @@ public class FoldersListAdapter extends CursorAdapter { @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { + // 创建新的列表项的视图 return new FolderListItem(context); } @Override public void bindView(View view, Context context, Cursor cursor) { if (view instanceof FolderListItem) { + // 判断视图类型是否为FolderListItem，如果是，则获取文件夹的名称并绑定到视图上 String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); ((FolderListItem) view).bind(folderName); @@ -58,6 +43,7 @@ public class FoldersListAdapter extends CursorAdapter { } public String getFolderName(Context context, int position) { + // 获取指定位置的文件夹名称 Cursor cursor = (Cursor) getItem(position); return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); @@ -68,13 +54,14 @@ public class FoldersListAdapter extends CursorAdapter { public FolderListItem(Context context) { super(context); + // 填充布局文件到当前视图中 inflate(context, R.layout.folder_list_item, this); mName = (TextView) findViewById(R.id.tv_folder_name); } public void bind(String name) { + // 将文件夹名称绑定到视图上 mName.setText(name); } } - -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java b/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java index 2afe2a8..66c9483 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java +++ b/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java @@ -39,18 +39,18 @@ import java.util.Map; public class NoteEditText extends EditText { private static final String TAG = "NoteEditText"; - private int mIndex; - private int mSelectionStartBeforeDelete; + private int mIndex; // 当前索引 + private int mSelectionStartBeforeDelete; // 删除前的光标位置 - private static final String SCHEME_TEL = "tel:" ; - private static final String SCHEME_HTTP = "http:" ; - private static final String SCHEME_EMAIL = "mailto:" ; + private static final String SCHEME_TEL = "tel:"; // 电话号码链接的Scheme + private static final String SCHEME_HTTP = "http:"; // 网页链接的Scheme + private static final String SCHEME_EMAIL = "mailto:"; // 邮件链接的Scheme - private static final Map sSchemaActionResMap = new HashMap(); + private static final Map sSchemaActionResMap = new HashMap(); // 存储链接Scheme和对应操作资源的映射 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); + sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel); // 将电话号码链接的Scheme和对应的操作资源ID放入映射中 + sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web); // 将网页链接的Scheme和对应的操作资源ID放入映射中 + sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email); // 将邮件链接的Scheme和对应的操作资源ID放入映射中 } /** @@ -58,52 +58,69 @@ public class NoteEditText extends EditText { */ public interface OnTextViewChangeListener { /** - * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens - * and the text is null + * 当按下删除键{@link KeyEvent#KEYCODE_DEL}并且文本为空时，删除当前编辑文本 + * + * @param index 当前编辑文本的索引 + * @param text 当前编辑文本的内容 */ void onEditTextDelete(int index, String text); /** - * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER} - * happen + * 当按下回车键{@link KeyEvent#KEYCODE_ENTER}时，在当前编辑文本后添加一个新的编辑文本 + * + * @param index 当前编辑文本的索引 + * @param text 当前编辑文本的内容 */ void onEditTextEnter(int index, String text); /** - * Hide or show item option when text change + * 当文本发生变化时，隐藏或显示项目选项 + * + * @param index 当前编辑文本的索引 + * @param hasText 文本是否不为空 */ void onTextChange(int index, boolean hasText); } private OnTextViewChangeListener mOnTextViewChangeListener; + //根据context设置文本 public NoteEditText(Context context) { - super(context, null); + super(context, null);//用super引用父类变量 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; } - public NoteEditText(Context context, AttributeSet attrs) { + //AttributeSet 百度了一下是自定义空控件属性，用于维护便签动态变化的属性 + //初始化便签 + public NoteEditText(Context context, AttributeSet attrs) { super(context, attrs, android.R.attr.editTextStyle); } + // 根据defstyle自动初始化 public NoteEditText(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); - // TODO Auto-generated constructor stub + // TODO Auto-generated construct or stub } @Override + //view里的函数，处理手机屏幕的所有事件 + /*参数event为手机屏幕触摸事件封装类的对象，其中封装了该事件的所有信息， + 例如触摸的位置、触摸的类型以及触摸的时间等。该对象会在用户触摸手机屏幕时被创建。*/ public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { + //重写了需要处理屏幕被按下的事件 case MotionEvent.ACTION_DOWN: - + //跟新当前坐标值 int x = (int) event.getX(); int y = (int) event.getY(); x -= getTotalPaddingLeft(); @@ -111,9 +128,12 @@ public class NoteEditText extends EditText { x += getScrollX(); y += getScrollY(); + //用布局控件layout根据x,y的新值设置新的位置 Layout layout = getLayout(); int line = layout.getLineForVertical(y); int off = layout.getOffsetForHorizontal(line, x); + + //更新光标新的位置 Selection.setSelection(getText(), off); break; } @@ -122,96 +142,147 @@ public class NoteEditText extends EditText { } @Override + /* + * 函数功能：处理用户按下一个键盘按键时会触发 的事件 + * 实现过程：如下注释 + */ public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { + //根据按键的 Unicode 编码值来处理 case KeyEvent.KEYCODE_ENTER: + //“进入”按键 if (mOnTextViewChangeListener != null) { return false; } break; case KeyEvent.KEYCODE_DEL: + //“删除”按键 mSelectionStartBeforeDelete = getSelectionStart(); break; default: break; } + //继续执行父类的其他点击事件 return super.onKeyDown(keyCode, event); } @Override + /* + * 函数功能：处理用户松开一个键盘按键时会触发 的事件 + * 实现方式：如下注释 + */ public boolean onKeyUp(int keyCode, KeyEvent event) { switch(keyCode) { + //根据按键的 Unicode 编码值来处理，有删除和进入2种操作 case KeyEvent.KEYCODE_DEL: if (mOnTextViewChangeListener != null) { + //若是被修改过 if (0 == mSelectionStartBeforeDelete && mIndex != 0) { + //若之前有被修改并且文档不为空 mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString()); + //利用上文OnTextViewChangeListener对KEYCODE_DEL按键情况的删除函数进行删除 return true; } } else { Log.d(TAG, "OnTextViewChangeListener was not seted"); + //其他情况报错，文档的改动监听器并没有建立 } break; case KeyEvent.KEYCODE_ENTER: + //同上也是分为监听器是否建立2种情况 if (mOnTextViewChangeListener != null) { int selectionStart = getSelectionStart(); + //获取当前位置 String text = getText().subSequence(selectionStart, length()).toString(); + //获取当前文本 setText(getText().subSequence(0, selectionStart)); + //根据获取的文本设置当前文本 mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text); + //当{@link KeyEvent#KEYCODE_ENTER}添加新文本 } else { Log.d(TAG, "OnTextViewChangeListener was not seted"); + //其他情况报错，文档的改动监听器并没有建立 } break; default: break; } + //继续执行父类的其他按键弹起的事件 return super.onKeyUp(keyCode, event); } @Override + /* + * 函数功能：当焦点发生变化时，会自动调用该方法来处理焦点改变的事件 + * 实现方式：如下注释 + * 参数：focused表示触发该事件的View是否获得了焦点，当该控件获得焦点时，Focused等于true，否则等于false。 + direction表示焦点移动的方向，用数值表示 + Rect：表示在触发事件的View的坐标系中，前一个获得焦点的矩形区域，即表示焦点是从哪里来的。如果不可用则为null + */ protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { if (mOnTextViewChangeListener != null) { + //若监听器已经建立 if (!focused && TextUtils.isEmpty(getText())) { + //获取到焦点并且文本不为空 mOnTextViewChangeListener.onTextChange(mIndex, false); + //mOnTextViewChangeListener子函数，置false隐藏事件选项 } else { mOnTextViewChangeListener.onTextChange(mIndex, true); + //mOnTextViewChangeListener子函数，置true显示事件选项 } } + //继续执行父类的其他焦点变化的事件 super.onFocusChanged(focused, direction, previouslyFocusedRect); } @Override + /* + * 函数功能：生成上下文菜单 + * 函数实现：如下注释 + */ protected void onCreateContextMenu(ContextMenu menu) { if (getText() instanceof Spanned) { + //有文本存在 int selStart = getSelectionStart(); int selEnd = getSelectionEnd(); + //获取文本开始和结尾位置 int min = Math.min(selStart, selEnd); int max = Math.max(selStart, selEnd); + //获取开始到结尾的最大值和最小值 final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class); + //设置url的信息的范围值 if (urls.length == 1) { int defaultResId = 0; for(String schema: sSchemaActionResMap.keySet()) { + //获取计划表中所有的key值 if(urls[0].getURL().indexOf(schema) >= 0) { + //若url可以添加则在添加后将defaultResId置为key所映射的值 defaultResId = sSchemaActionResMap.get(schema); break; } } if (defaultResId == 0) { + //defaultResId == 0则说明url并没有添加任何东西，所以置为连接其他SchemaActionResMap的值 defaultResId = R.string.note_link_other; } + //建立菜单 menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener( new OnMenuItemClickListener() { + //新建按键监听器 public boolean onMenuItemClick(MenuItem item) { // goto a new intent urls[0].onClick(NoteEditText.this); + //根据相应的文本设置菜单的按键 return true; } }); } } + //继续执行父类的其他菜单创建的事件 super.onCreateContextMenu(menu); } } diff --git a/src/Notes-master/src/net/micode/notes/ui/NoteItemData.java b/src/Notes-master/src/net/micode/notes/ui/NoteItemData.java index 0f5a878..9dde13c 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NoteItemData.java +++ b/src/Notes-master/src/net/micode/notes/ui/NoteItemData.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -28,20 +12,20 @@ import net.micode.notes.tool.DataUtils; public class NoteItemData { static final String [] PROJECTION = new String [] { - NoteColumns.ID, - NoteColumns.ALERTED_DATE, - NoteColumns.BG_COLOR_ID, - NoteColumns.CREATED_DATE, - NoteColumns.HAS_ATTACHMENT, - NoteColumns.MODIFIED_DATE, - NoteColumns.NOTES_COUNT, - NoteColumns.PARENT_ID, - NoteColumns.SNIPPET, - NoteColumns.TYPE, - NoteColumns.WIDGET_ID, - NoteColumns.WIDGET_TYPE, + NoteColumns.ID, + NoteColumns.ALERTED_DATE, + NoteColumns.BG_COLOR_ID, + NoteColumns.CREATED_DATE, + NoteColumns.HAS_ATTACHMENT, + NoteColumns.MODIFIED_DATE, + NoteColumns.NOTES_COUNT, + NoteColumns.PARENT_ID, + NoteColumns.SNIPPET, + NoteColumns.TYPE, + NoteColumns.WIDGET_ID, + NoteColumns.WIDGET_TYPE, }; - + //常量标记和数据就不一一标记了，意义翻译基本就知道 private static final int ID_COLUMN = 0; private static final int ALERTED_DATE_COLUMN = 1; private static final int BG_COLOR_ID_COLUMN = 2; @@ -75,8 +59,9 @@ public class NoteItemData { private boolean mIsOnlyOneItem; private boolean mIsOneNoteFollowingFolder; private boolean mIsMultiNotesFollowingFolder; - - public NoteItemData(Context context, Cursor cursor) { + //初始化NoteItemData，主要利用光标cursor获取的东西 + public NoteItemData(Context context, Cursor cursor) { + //getxxx为转换格式 mId = cursor.getLong(ID_COLUMN); mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN); mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN); @@ -92,10 +77,11 @@ public class NoteItemData { mWidgetId = cursor.getInt(WIDGET_ID_COLUMN); mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN); + //初始化电话号码的信息 mPhoneNumber = ""; if (mParentId == Notes.ID_CALL_RECORD_FOLDER) { mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId); - if (!TextUtils.isEmpty(mPhoneNumber)) { + if (!TextUtils.isEmpty(mPhoneNumber)) {//mphonenumber里有符合字符串，则用contart功能连接 mName = Contact.getContact(context, mPhoneNumber); if (mName == null) { mName = mPhoneNumber; @@ -108,32 +94,35 @@ public class NoteItemData { } checkPostion(cursor); } - + ///根据鼠标的位置设置标记，和位置 private void checkPostion(Cursor cursor) { + //初始化几个标记，cursor具体功能笔记中已提到，不一一叙述 mIsLastItem = cursor.isLast() ? true : false; mIsFirstItem = cursor.isFirst() ? true : false; mIsOnlyOneItem = (cursor.getCount() == 1); + //初始化“多重子文件”“单一子文件”2个标记 mIsMultiNotesFollowingFolder = false; mIsOneNoteFollowingFolder = false; - if (mType == Notes.TYPE_NOTE && !mIsFirstItem) { + //主要是设置上诉2标记 + if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {//若是note格式并且不是第一个元素 int position = cursor.getPosition(); - if (cursor.moveToPrevious()) { + if (cursor.moveToPrevious()) {//获取光标位置后看上一行 if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER - || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) { + || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {//若光标满足系统或note格式 if (cursor.getCount() > (position + 1)) { - mIsMultiNotesFollowingFolder = true; + mIsMultiNotesFollowingFolder = true;//若是数据行数大于但前位置+1则设置成正确 } else { - mIsOneNoteFollowingFolder = true; + mIsOneNoteFollowingFolder = true;//否则单一文件夹标记为true } } - if (!cursor.moveToNext()) { + if (!cursor.moveToNext()) {//若不能再往下走则报错 throw new IllegalStateException("cursor move to previous but can't move back"); } } } } - + ///以下都是获取标记没什么好说的，不过倒数第二个需要说明下，很具体看下面 public boolean isOneFollowingFolder() { return mIsOneNoteFollowingFolder; } @@ -214,6 +203,7 @@ public class NoteItemData { return (mAlertDate > 0); } + //若数据父id为保存至文件夹模式的id且满足电话号码单元不为空，则isCallRecord为true public boolean isCallRecord() { return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber)); } @@ -221,4 +211,4 @@ public class NoteItemData { public static int getNoteType(Cursor cursor) { return cursor.getInt(TYPE_COLUMN); } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NotesListAdapter.java b/src/Notes-master/src/net/micode/notes/ui/NotesListAdapter.java index 51c9cb9..b165769 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NotesListAdapter.java +++ b/src/Notes-master/src/net/micode/notes/ui/NotesListAdapter.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -23,6 +7,7 @@ import android.view.View; import android.view.ViewGroup; import android.widget.CursorAdapter; + import net.micode.notes.data.Notes; import java.util.Collection; @@ -31,55 +16,94 @@ import java.util.HashSet; import java.util.Iterator; +/* + * 功能：直译为便签表连接器，继承了CursorAdapter，它为cursor和ListView提供了连接的桥梁。 + * 所以NotesListAdapter实现的是鼠标和编辑便签链接的桥梁 + */ public class NotesListAdapter extends CursorAdapter { private static final String TAG = "NotesListAdapter"; private Context mContext; private HashMap mSelectedIndex; - private int mNotesCount; - private boolean mChoiceMode; + private int mNotesCount; //便签数 + private boolean mChoiceMode; //选择模式标记 + /* + * 桌面widget的属性，包括编号和类型 + */ public static class AppWidgetAttribute { public int widgetId; public int widgetType; }; + /* + * 函数功能：初始化便签链接器 + * 函数实现：根据传进来的内容设置相关变量 + */ public NotesListAdapter(Context context) { - super(context, null); - mSelectedIndex = new HashMap(); + super(context, null); //父类对象置空 + mSelectedIndex = new HashMap(); //新建选项下标的hash表 mContext = context; mNotesCount = 0; } @Override + /* + * 函数功能：新建一个视图来存储光标所指向的数据 + * 函数实现：使用兄弟类NotesListItem新建一个项目选项 + */ public View newView(Context context, Cursor cursor, ViewGroup parent) { return new NotesListItem(context); } + /* + * 函数功能：将已经存在的视图和鼠标指向的数据进行捆绑 + * 函数实现：如下注释 + */ @Override public void bindView(View view, Context context, Cursor cursor) { if (view instanceof NotesListItem) { + //若view是NotesListItem的一个实例 NoteItemData itemData = new NoteItemData(context, cursor); ((NotesListItem) view).bind(context, itemData, mChoiceMode, isSelectedItem(cursor.getPosition())); + //则新建一个项目选项并且用bind跟将view和鼠标，内容，便签数据捆绑在一起 } } + /* + * 函数功能：设置勾选框 + * 函数实现：如下注释 + */ public void setCheckedItem(final int position, final boolean checked) { mSelectedIndex.put(position, checked); + //根据定位和是否勾选设置下标 notifyDataSetChanged(); + //在修改后刷新activity } + /* + * 函数功能：判断单选按钮是否勾选 + */ public boolean isInChoiceMode() { return mChoiceMode; } + /* + * 函数功能：设置单项选项框 + * 函数实现：重置下标并且根据参数mode设置选项 + */ public void setChoiceMode(boolean mode) { mSelectedIndex.clear(); mChoiceMode = mode; } + /* + * 函数功能：选择全部选项 + * 函数实现：如下注释 + */ public void selectAll(boolean checked) { Cursor cursor = getCursor(); + //获取光标位置 for (int i = 0; i < getCount(); i++) { if (cursor.moveToPosition(i)) { if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) { @@ -87,30 +111,47 @@ public class NotesListAdapter extends CursorAdapter { } } } + //遍历所有光标可用的位置在判断为便签类型之后勾选单项框 } + /* + * 函数功能：建立选择项的下标列表 + * 函数实现：如下注释 + */ public HashSet getSelectedItemIds() { HashSet itemSet = new HashSet(); + //建立hash表 for (Integer position : mSelectedIndex.keySet()) { + //遍历所有的关键 if (mSelectedIndex.get(position) == true) { + //若光标位置可用 Long id = getItemId(position); if (id == Notes.ID_ROOT_FOLDER) { + //原文件不需要添加 Log.d(TAG, "Wrong item id, should not happen"); } else { itemSet.add(id); } + //则将id该下标假如选项集合中 + } } return itemSet; } + /* + * 函数功能：建立桌面Widget的选项表 + * 函数实现：如下注释 + */ public HashSet getSelectedWidget() { HashSet itemSet = new HashSet(); for (Integer position : mSelectedIndex.keySet()) { if (mSelectedIndex.get(position) == true) { Cursor c = (Cursor) getItem(position); + //以上4句和getSelectedItemIds一样，不再重复 if (c != null) { + //光标位置可用的话就建立新的Widget属性并编辑下标和类型，最后添加到选项集中 AppWidgetAttribute widget = new AppWidgetAttribute(); NoteItemData item = new NoteItemData(mContext, c); widget.widgetId = item.getWidgetId(); @@ -128,26 +169,42 @@ public class NotesListAdapter extends CursorAdapter { return itemSet; } + /* + * 函数功能：获取选项个数 + * 函数实现：如下注释 + */ public int getSelectedCount() { Collection values = mSelectedIndex.values(); + //首先获取选项下标的值 if (null == values) { return 0; } Iterator iter = values.iterator(); + //初始化叠加器 int count = 0; while (iter.hasNext()) { if (true == iter.next()) { + //若value值为真计数+1 count++; } } return count; } + /* + * 函数功能：判断是否全部选中 + * 函数实现：如下注释 + */ public boolean isAllSelected() { int checkedCount = getSelectedCount(); return (checkedCount != 0 && checkedCount == mNotesCount); + //获取选项数看是否等于便签的个数 } + /* + * 函数功能：判断是否为选项表 + * 函数实现：通过传递的下标来确定 + */ public boolean isSelectedItem(final int position) { if (null == mSelectedIndex.get(position)) { return false; @@ -156,29 +213,45 @@ public class NotesListAdapter extends CursorAdapter { } @Override + /* + * 函数功能：在activity内容发生局部变动的时候回调该函数计算便签的数量 + * 函数实现：如下注释 + */ protected void onContentChanged() { super.onContentChanged(); + //执行基类函数 calcNotesCount(); } @Override + /* + * 函数功能：在activity光标发生局部变动的时候回调该函数计算便签的数量 + */ public void changeCursor(Cursor cursor) { super.changeCursor(cursor); + //执行基类函数 calcNotesCount(); } + /* + * 函数功能：计算便签数量 + * + */ private void calcNotesCount() { mNotesCount = 0; for (int i = 0; i < getCount(); i++) { + //获取总数同时遍历 Cursor c = (Cursor) getItem(i); if (c != null) { if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) { mNotesCount++; + //若该位置不为空并且文本类型为便签就+1 } } else { Log.e(TAG, "Invalid cursor"); return; } + //否则报错 } } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NotesListItem.java b/src/Notes-master/src/net/micode/notes/ui/NotesListItem.java index 1221e80..fa8b3d2 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NotesListItem.java +++ b/src/Notes-master/src/net/micode/notes/ui/NotesListItem.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -30,37 +14,43 @@ import net.micode.notes.tool.DataUtils; import net.micode.notes.tool.ResourceParser.NoteItemBgResources; +//创建便签列表项目选项 public class NotesListItem extends LinearLayout { - private ImageView mAlert; - private TextView mTitle; - private TextView mTime; - private TextView mCallName; - private NoteItemData mItemData; - private CheckBox mCheckBox; + private ImageView mAlert;//闹钟图片 + private TextView mTitle; //标题 + private TextView mTime; //时间 + private TextView mCallName; // + private NoteItemData mItemData; //标签数据 + private CheckBox mCheckBox; //打钩框 + /*初始化基本信息*/ public NotesListItem(Context context) { - super(context); - inflate(context, R.layout.note_item, this); + super(context); //super()它的主要作用是调整调用父类构造函数的顺序 + inflate(context, R.layout.note_item, this);//Inflate可用于将一个xml中定义的布局控件找出来,这里的xml是r。layout + //findViewById用于从contentView中查找指定ID的View，转换出来的形式根据需要而定; mAlert = (ImageView) findViewById(R.id.iv_alert_icon); mTitle = (TextView) findViewById(R.id.tv_title); mTime = (TextView) findViewById(R.id.tv_time); mCallName = (TextView) findViewById(R.id.tv_name); mCheckBox = (CheckBox) findViewById(android.R.id.checkbox); } - + ///根据data的属性对各个控件的属性的控制，主要是可见性Visibility，内容setText，格式setTextAppearance public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) { if (choiceMode && data.getType() == Notes.TYPE_NOTE) { - mCheckBox.setVisibility(View.VISIBLE); - mCheckBox.setChecked(checked); + mCheckBox.setVisibility(View.VISIBLE); ///设置可见行为可见 + mCheckBox.setChecked(checked); ///格子打钩 } else { mCheckBox.setVisibility(View.GONE); } mItemData = data; + ///设置控件属性，一共三种情况，由data的id和父id是否与保存到文件夹的id一致来决定 if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { mCallName.setVisibility(View.GONE); mAlert.setVisibility(View.VISIBLE); + //设置该textview的style mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); + //settext为设置内容 mTitle.setText(context.getString(R.string.call_record_folder_name) + context.getString(R.string.format_folder_files_count, data.getNotesCount())); mAlert.setImageResource(R.drawable.call_record); @@ -69,8 +59,9 @@ public class NotesListItem extends LinearLayout { mCallName.setText(data.getCallName()); mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem); mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); + ///关于闹钟的设置 if (data.hasAlert()) { - mAlert.setImageResource(R.drawable.clock); + mAlert.setImageResource(R.drawable.clock);//图片来源的设置 mAlert.setVisibility(View.VISIBLE); } else { mAlert.setVisibility(View.GONE); @@ -78,45 +69,48 @@ public class NotesListItem extends LinearLayout { } else { mCallName.setVisibility(View.GONE); mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); - + ///设置title格式 if (data.getType() == Notes.TYPE_FOLDER) { mTitle.setText(data.getSnippet() + context.getString(R.string.format_folder_files_count, - data.getNotesCount())); + data.getNotesCount())); mAlert.setVisibility(View.GONE); } else { mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); if (data.hasAlert()) { - mAlert.setImageResource(R.drawable.clock); + mAlert.setImageResource(R.drawable.clock);///设置图片来源 mAlert.setVisibility(View.VISIBLE); } else { mAlert.setVisibility(View.GONE); } } } - mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate())); + ///设置内容，获取相关时间，从data里编辑的日期中获取 + mTime. setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate())); setBackground(data); } - + //根据data的文件属性来设置背景 private void setBackground(NoteItemData data) { int id = data.getBgColorId(); + //，若是note型文件，则4种情况，对于4种不同情况的背景来源 if (data.getType() == Notes.TYPE_NOTE) { + //单个数据并且只有一个子文件夹 if (data.isSingle() || data.isOneFollowingFolder()) { setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id)); - } else if (data.isLast()) { + } else if (data.isLast()) {//是最后一个数据 setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id)); - } else if (data.isFirst() || data.isMultiFollowingFolder()) { + } else if (data.isFirst() || data.isMultiFollowingFolder()) {//是一个数据并有多个子文件夹 setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id)); } else { setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id)); } } else { + //若不是note直接调用文件夹的背景来源 setBackgroundResource(NoteItemBgResources.getFolderBgRes()); } } - public NoteItemData getItemData() { return mItemData; } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NotesPreferenceActivity.java b/src/Notes-master/src/net/micode/notes/ui/NotesPreferenceActivity.java index 07c5f7e..6f8a89f 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NotesPreferenceActivity.java +++ b/src/Notes-master/src/net/micode/notes/ui/NotesPreferenceActivity.java @@ -1,19 +1,3 @@ -/* - * 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; @@ -47,66 +31,92 @@ import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.gtask.remote.GTaskSyncService; - +/* + *该类功能：NotesPreferenceActivity，在小米便签中主要实现的是对背景颜色和字体大小的数据储存。 + * 继承了PreferenceActivity主要功能为对系统信息和配置进行自动保存的Activity + */ public class NotesPreferenceActivity extends PreferenceActivity { public static final String PREFERENCE_NAME = "notes_preferences"; - + //优先名 public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name"; - + //同步账号 public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time"; - + //同步时间 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"; - + //同步密码 private static final String AUTHORITIES_FILTER_KEY = "authorities"; - + //本地密码 private PreferenceCategory mAccountCategory; - + //账户分组 private GTaskReceiver mReceiver; - + //同步任务接收器 private Account[] mOriAccounts; - + //账户 private boolean mHasAddedAccount; + //账户的hash标记 @Override + /* + *函数功能：创建一个activity，在函数里要完成所有的正常静态设置 + *参数：Bundle icicle：存放了 activity 当前的状态 + *函数实现：如下注释 + */ protected void onCreate(Bundle icicle) { + //先执行父类的创建函数 super.onCreate(icicle); /* using the app icon for navigation */ getActionBar().setDisplayHomeAsUpEnabled(true); + //给左上角图标的左边加上一个返回的图标 addPreferencesFromResource(R.xml.preferences); + //添加xml来源并显示 xml mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY); + //根据同步账户关键码来初始化分组 mReceiver = new GTaskReceiver(); IntentFilter filter = new IntentFilter(); filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME); registerReceiver(mReceiver, filter); + //初始化同步组件 mOriAccounts = null; View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null); + //获取listvivew，ListView的作用:用于列出所有选择 getListView().addHeaderView(header, null, true); + //在listview组件上方添加其他组件 } @Override + /* + * 函数功能：activity交互功能的实现，用于接受用户的输入 + * 函数实现：如下注释 + */ protected void onResume() { + //先执行父类 的交互实现 super.onResume(); // need to set sync account automatically if user has added a new // account if (mHasAddedAccount) { + //若用户新加了账户则自动设置同步账户 Account[] accounts = getGoogleAccounts(); + //获取google同步账户 if (mOriAccounts != null && accounts.length > mOriAccounts.length) { + //若原账户不为空且当前账户有增加 for (Account accountNew : accounts) { boolean found = false; for (Account accountOld : mOriAccounts) { if (TextUtils.equals(accountOld.name, accountNew.name)) { + //更新账户 found = true; break; } } if (!found) { setSyncAccount(accountNew.name); + //若是没有找到旧的账户，那么同步账号中就只添加新账户 break; } } @@ -114,58 +124,83 @@ public class NotesPreferenceActivity extends PreferenceActivity { } refreshUI(); + //刷新标签界面 } @Override + /* + * 函数功能：销毁一个activity + * 函数实现：如下注释 + */ protected void onDestroy() { if (mReceiver != null) { unregisterReceiver(mReceiver); + //注销接收器 } super.onDestroy(); + //执行父类的销毁动作 } + /* + * 函数功能：重新设置账户信息 + * 函数实现：如下注释 + */ private void loadAccountPreference() { mAccountCategory.removeAll(); - + //销毁所有的分组 Preference accountPref = new Preference(this); + //建立首选项 final String defaultAccount = getSyncAccountName(this); accountPref.setTitle(getString(R.string.preferences_account_title)); accountPref.setSummary(getString(R.string.preferences_account_summary)); + //设置首选项的大标题和小标题 accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { + //建立监听器 if (!GTaskSyncService.isSyncing()) { if (TextUtils.isEmpty(defaultAccount)) { // the first time to set account + //若是第一次建立账户显示选择账户提示对话框 showSelectAccountAlertDialog(); } else { // if the account has already been set, we need to promp // user about the risk + //若是已经建立则显示修改对话框并进行修改操作 showChangeAccountConfirmAlertDialog(); } } else { + //若在没有同步的情况下，则在toast中显示不能修改 Toast.makeText(NotesPreferenceActivity.this, - R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT) + R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT) .show(); } return true; } }); + //根据新建首选项编辑新的账户分组 mAccountCategory.addPreference(accountPref); } + /* + *函数功能：设置按键的状态和最后同步的时间 + *函数实现：如下注释 + */ private void loadSyncButton() { Button syncButton = (Button) findViewById(R.id.preference_sync_button); TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview); - + //获取同步按钮控件和最终同步时间的的窗口 // set button state + //设置按钮的状态 if (GTaskSyncService.isSyncing()) { + //若是在同步状态下 syncButton.setText(getString(R.string.preferences_button_sync_cancel)); syncButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { GTaskSyncService.cancelSync(NotesPreferenceActivity.this); } }); + //设置按钮显示的文本为“取消同步”以及监听器 } else { syncButton.setText(getString(R.string.preferences_button_sync_immediately)); syncButton.setOnClickListener(new View.OnClickListener() { @@ -173,50 +208,67 @@ public class NotesPreferenceActivity extends PreferenceActivity { GTaskSyncService.startSync(NotesPreferenceActivity.this); } }); + //若是不同步则设置按钮显示的文本为“立即同步”以及对应监听器 } syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this))); + //设置按键可用还是不可用 // set last sync time + // 设置最终同步时间 if (GTaskSyncService.isSyncing()) { + //若是在同步的情况下 lastSyncTimeView.setText(GTaskSyncService.getProgressString()); lastSyncTimeView.setVisibility(View.VISIBLE); + // 根据当前同步服务器设置时间显示框的文本以及可见性 } else { + //若是非同步情况 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); + //则根据最后同步时间的信息来编辑时间显示框的文本内容和可见性 } else { + //若时间为空直接设置为不可见状态 lastSyncTimeView.setVisibility(View.GONE); } } } - + /* + *函数功能：刷新标签界面 + *函数实现：调用上文设置账号和设置按键两个函数来实现 + */ private void refreshUI() { loadAccountPreference(); loadSyncButton(); } + /* + * 函数功能：显示账户选择的对话框并进行账户的设置 + * 函数实现：如下注释 + */ private void showSelectAccountAlertDialog() { AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); + //创建一个新的对话框 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)); - + //设置标题以及子标题的内容 dialogBuilder.setCustomTitle(titleView); dialogBuilder.setPositiveButton(null, null); - + //设置对话框的自定义标题，建立一个YES的按钮 Account[] accounts = getGoogleAccounts(); String defAccount = getSyncAccountName(this); - + //获取同步账户信息 mOriAccounts = accounts; mHasAddedAccount = false; if (accounts.length > 0) { + //若账户不为空 CharSequence[] items = new CharSequence[accounts.length]; final CharSequence[] itemMapping = items; int checkedItem = -1; @@ -224,83 +276,119 @@ public class NotesPreferenceActivity extends PreferenceActivity { for (Account account : accounts) { if (TextUtils.equals(account.name, defAccount)) { checkedItem = index; + //在账户列表中查询到所需账户 } items[index++] = account.name; } dialogBuilder.setSingleChoiceItems(items, checkedItem, + //在对话框建立一个单选的复选框 new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { setSyncAccount(itemMapping[which].toString()); dialog.dismiss(); + //取消对话框 refreshUI(); } + //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 }); + //建立对话框网络版的监听器 } View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null); dialogBuilder.setView(addAccountView); + //给新加账户对话框设置自定义样式 final AlertDialog dialog = dialogBuilder.show(); + //显示对话框 addAccountView.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { mHasAddedAccount = true; + //将新加账户的hash置true Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS"); + //建立网络建立组件 intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] { - "gmail-ls" + "gmail-ls" }); startActivityForResult(intent, -1); + //跳回上一个选项 dialog.dismiss(); } }); + //建立新加账户对话框的监听器 } + /* + * 函数功能：显示账户选择对话框和相关账户操作 + * 函数实现：如下注释 + */ private void showChangeAccountConfirmAlertDialog() { AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); - + //创建一个新的对话框 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)); + //根据同步修改的账户信息设置标题以及子标题的内容 dialogBuilder.setCustomTitle(titleView); - + //设置对话框的自定义标题 CharSequence[] menuItemArray = new CharSequence[] { getString(R.string.preferences_menu_change_account), getString(R.string.preferences_menu_remove_account), getString(R.string.preferences_menu_cancel) }; + //定义一些标记字符串 dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() { + //设置对话框要显示的一个list，用于显示几个命令时,即change，remove，cancel public void onClick(DialogInterface dialog, int which) { + //按键功能，由which来决定 if (which == 0) { + //进入账户选择对话框 showSelectAccountAlertDialog(); } else if (which == 1) { + //删除账户并且跟新便签界面 removeSyncAccount(); refreshUI(); } } }); dialogBuilder.show(); + //显示对话框 } + /* + *函数功能：获取谷歌账户 + *函数实现：通过账户管理器直接获取 + */ private Account[] getGoogleAccounts() { AccountManager accountManager = AccountManager.get(this); return accountManager.getAccountsByType("com.google"); } + /* + * 函数功能：设置同步账户 + * 函数实现：如下注释： + */ private void setSyncAccount(String account) { if (!getSyncAccountName(this).equals(account)) { + //假如该账号不在同步账号列表中 SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); + //编辑共享的首选项 if (account != null) { editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account); } else { editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); } + //将该账号加入到首选项中 + editor.commit(); + //提交修改的数据 + - // clean up last sync time setLastSyncTime(this, 0); + //将最后同步时间清零 // clean up local gtask related info new Thread(new Runnable() { @@ -311,23 +399,33 @@ public class NotesPreferenceActivity extends PreferenceActivity { getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); } }).start(); + //重置当地同步任务的信息 Toast.makeText(NotesPreferenceActivity.this, getString(R.string.preferences_toast_success_set_accout, account), Toast.LENGTH_SHORT).show(); + //将toast的文本信息置为“设置账户成功”并显示出来 } } - + /* + * 函数功能：删除同步账户 + * 函数实现：如下注释： + */ private void removeSyncAccount() { SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); + //设置共享首选项 + if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) { editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME); + //假如当前首选项中有账户就删除 } if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) { editor.remove(PREFERENCE_LAST_SYNC_TIME); + //删除当前首选项中有账户时间 } editor.commit(); + //提交更新后的数据 // clean up local gtask related info new Thread(new Runnable() { @@ -338,51 +436,79 @@ public class NotesPreferenceActivity extends PreferenceActivity { getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); } }).start(); + //重置当地同步任务的信息 } + /* + * 函数功能：获取同步账户名称 + * 函数实现：通过共享的首选项里的信息直接获取 + */ public static String getSyncAccountName(Context context) { SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); } + /* + * 函数功能：设置最终同步的时间 + * 函数实现：如下注释 + */ public static void setLastSyncTime(Context context, long time) { SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); + // 从共享首选项中找到相关账户并获取其编辑器 editor.putLong(PREFERENCE_LAST_SYNC_TIME, time); editor.commit(); + //编辑最终同步时间并提交更新 } - + /* + * 函数功能：获取最终同步时间 + * 函数实现：通过共享的首选项里的信息直接获取 + */ public static long getLastSyncTime(Context context) { SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0); } + /* + * 函数功能：接受同步信息 + * 函数实现：继承BroadcastReceiver + */ private class GTaskReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { refreshUI(); if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) { + //获取随广播而来的Intent中的同步服务的数据 TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview); syncStatus.setText(intent .getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG)); + //通过获取的数据在设置系统的状态 } } } + /* + * 函数功能：处理菜单的选项 + * 函数实现：如下注释 + * 参数:MenuItem菜单选项 + */ public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { + //根据选项的id选择，这里只有一个主页 case android.R.id.home: Intent intent = new Intent(this, NotesListActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(intent); return true; + //在主页情况下在创建连接组件intent，发出清空的信号并开始一个相应的activity default: return false; } } } + \ No newline at end of file