更新ui包注释

src/Notes-master3/app/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java

@@ -20,14 +20,14 @@ 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.OnClickListener;//监听事件功能，点击就会实现相应功能
-import android.content.DialogInterface.OnDismissListener;
+import android.content.DialogInterface.OnDismissListener;//该方法将在关闭对话框时调用
 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.Bundle;//用于传递数据
 import android.os.PowerManager;
 import android.provider.Settings;
 import android.view.Window;
@@ -39,7 +39,9 @@ import net.micode.notes.tool.DataUtils;
 
 import java.io.IOException;
 
-
+/**
+ * 功能：实现闹铃提醒界面
+ */
 public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
     private long mNoteId;
     private String mSnippet;
@@ -54,6 +56,9 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
         final Window win = getWindow();
         win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
 
+        /*
+        判断闹钟启动时屏幕是否点亮，若未点亮，激活闹钟时开启手机屏幕
+        */
         if (!isScreenOn()) {
             win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
                     | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
@@ -76,21 +81,23 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
 
         mPlayer = new MediaPlayer();
         if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
-            showActionDialog();
+            showActionDialog();//弹出对话框
-            playAlarmSound();
+            playAlarmSound();//闹钟提示音触发
         } else {
-            finish();
+            finish();//完成闹钟动作
         }
     }
 
+    /*判断屏幕是否处于锁定状态 */
     private boolean isScreenOn() {
         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
         return pm.isScreenOn();
     }
 
+    /*播放闹钟提示音 */
     private void playAlarmSound() {
         Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
-
+        //调用系统铃声管理获得闹钟提示音
         int silentModeStreams = Settings.System.getInt(getContentResolver(),
                 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
 
@@ -100,10 +107,10 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
             mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
         }
         try {
-            mPlayer.setDataSource(this, url);
+            mPlayer.setDataSource(this, url);//设置铃声数据来源
             mPlayer.prepare();
-            mPlayer.setLooping(true);
+            mPlayer.setLooping(true);//循环播放
-            mPlayer.start();
+            mPlayer.start();//开始播放
         } catch (IllegalArgumentException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
@@ -116,20 +123,23 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
         } catch (IOException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
-        }
+        }//异常处理
     }
 
+    /*设置对话框 */
     private void showActionDialog() {
         AlertDialog.Builder dialog = new AlertDialog.Builder(this);
-        dialog.setTitle(R.string.app_name);
+        dialog.setTitle(R.string.app_name);//对话框标题
-        dialog.setMessage(mSnippet);
+        dialog.setMessage(mSnippet);//对话框内容
-        dialog.setPositiveButton(R.string.notealert_ok, this);
+        dialog.setPositiveButton(R.string.notealert_ok, this);//“是”按钮
+        //“否”按钮
         if (isScreenOn()) {
             dialog.setNegativeButton(R.string.notealert_enter, this);
         }
         dialog.show().setOnDismissListener(this);
     }
 
+    /*判断点击操作 */
     public void onClick(DialogInterface dialog, int which) {
         switch (which) {
             case DialogInterface.BUTTON_NEGATIVE:
@@ -143,11 +153,13 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
         }
     }
 
+    /*忽略闹钟*/
     public void onDismiss(DialogInterface dialog) {
-        stopAlarmSound();
+        stopAlarmSound();/*停止播放 */
         finish();
     }
 
+    /*停止播放 */
     private void stopAlarmSound() {
         if (mPlayer != null) {
             mPlayer.stop();

src/Notes-master3/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.java

@@ -27,9 +27,12 @@ import android.database.Cursor;
 import net.micode.notes.data.Notes;
 import net.micode.notes.data.Notes.NoteColumns;
 
-
+/**
+ * 功能：闹铃提醒启动消息接收器
+ */
 public class AlarmInitReceiver extends BroadcastReceiver {
 
+    /*操作数据库调用ID与闹钟时间 */
     private static final String [] PROJECTION = new String [] {
         NoteColumns.ID,
         NoteColumns.ALERTED_DATE
@@ -39,6 +42,7 @@ public class AlarmInitReceiver extends BroadcastReceiver {
     private static final int COLUMN_ALERTED_DATE      = 1;
 
     @Override
+    /*获取当前时间 */
     public void onReceive(Context context, Intent intent) {
         long currentDate = System.currentTimeMillis();
         Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
@@ -60,6 +64,6 @@ public class AlarmInitReceiver extends BroadcastReceiver {
                 } while (c.moveToNext());
             }
             c.close();
-        }
+        }//根据数据库中的闹钟时间创建一个闹钟机制
     }
 }

src/Notes-master3/app/src/main/java/net/micode/notes/ui/AlarmReceiver.java

@@ -20,11 +20,14 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 
+/**
+ * 闹钟提醒接收器
+ */
 public class AlarmReceiver extends BroadcastReceiver {
     @Override
     public void onReceive(Context context, Intent intent) {
-        intent.setClass(context, AlarmAlertActivity.class);
+        intent.setClass(context, AlarmAlertActivity.class);//启动AlarmAlertActivity
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        context.startActivity(intent);
+        context.startActivity(intent);//创建一个栈并将新的activity装入其中
     }
 }

src/Notes-master3/app/src/main/java/net/micode/notes/ui/DateTimePicker.java

@@ -28,6 +28,9 @@ import android.view.View;
 import android.widget.FrameLayout;
 import android.widget.NumberPicker;
 
+/**
+ *设置提醒时间的部件
+ */
 public class DateTimePicker extends FrameLayout {
 
     private static final boolean DEFAULT_ENABLE_STATE = true;
@@ -46,11 +49,13 @@ public class DateTimePicker extends FrameLayout {
     private static final int AMPM_SPINNER_MIN_VAL = 0;
     private static final int AMPM_SPINNER_MAX_VAL = 1;
 
+    //四个设置闹钟时间所需的变量
     private final NumberPicker mDateSpinner;
     private final NumberPicker mHourSpinner;
     private final NumberPicker mMinuteSpinner;
     private final NumberPicker mAmPmSpinner;
-    private Calendar mDate;
+
+    private Calendar mDate;//用于操作时间
 
     private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
 
@@ -64,6 +69,7 @@ public class DateTimePicker extends FrameLayout {
 
     private OnDateTimeChangedListener mOnDateTimeChangedListener;
 
+    /*对日期的监听 */
     private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
         @Override
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
@@ -73,6 +79,7 @@ public class DateTimePicker extends FrameLayout {
         }
     };
 
+    /*对小时的监听 */
     private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
         @Override
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
@@ -83,26 +90,27 @@ public class DateTimePicker extends FrameLayout {
                     cal.setTimeInMillis(mDate.getTimeInMillis());
                     cal.add(Calendar.DAY_OF_YEAR, 1);
                     isDateChanged = true;
+                    //对于12小时制时，晚上11点和12点交替时对日期的更改
                 } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
                     cal.setTimeInMillis(mDate.getTimeInMillis());
                     cal.add(Calendar.DAY_OF_YEAR, -1);
                     isDateChanged = true;
-                }
+                }//对于12小时制时，凌晨11点和12点交替时对日期的更改
                 if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
                         oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
                     mIsAm = !mIsAm;
                     updateAmPmControl();
-                }
+                }//对于12小时制时，中午11点和12点交替时对AM和PM的更改
             } else {
                 if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
                     cal.setTimeInMillis(mDate.getTimeInMillis());
                     cal.add(Calendar.DAY_OF_YEAR, 1);
-                    isDateChanged = true;
+                    isDateChanged = true;//对于24小时制时，晚上11点和12点交替时对日期的更改
                 } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
                     cal.setTimeInMillis(mDate.getTimeInMillis());
                     cal.add(Calendar.DAY_OF_YEAR, -1);
                     isDateChanged = true;
-                }
+                }//对于12小时制时，凌晨11点和12点交替时对日期的更改
             }
             int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
             mDate.set(Calendar.HOUR_OF_DAY, newHour);
@@ -117,15 +125,18 @@ public class DateTimePicker extends FrameLayout {
 
     private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
         @Override
+        /*对分钟的监听 */
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
             int minValue = mMinuteSpinner.getMinValue();
             int maxValue = mMinuteSpinner.getMaxValue();
-            int offset = 0;
+            int offset = 0;//判断小时是否改变的记录器
             if (oldVal == maxValue && newVal == minValue) {
                 offset += 1;
             } else if (oldVal == minValue && newVal == maxValue) {
                 offset -= 1;
             }
+            //如果原值为59，新值为0，则offset加1
+            //如果原值为0，新值为59，则offset减1
             if (offset != 0) {
                 mDate.add(Calendar.HOUR_OF_DAY, offset);
                 mHourSpinner.setValue(getCurrentHour());
@@ -144,6 +155,7 @@ public class DateTimePicker extends FrameLayout {
         }
     };
 
+    /*对AM和PM的监听 */
     private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
         @Override
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
@@ -163,10 +175,12 @@ public class DateTimePicker extends FrameLayout {
                 int dayOfMonth, int hourOfDay, int minute);
     }
 
+    /*访问数据库获取当前时间*/
     public DateTimePicker(Context context) {
         this(context, System.currentTimeMillis());
     }
 
+    /*转化上一个函数获取的时间格式 */
     public DateTimePicker(Context context, long date) {
         this(context, date, DateFormat.is24HourFormat(context));
     }
@@ -262,6 +276,7 @@ public class DateTimePicker extends FrameLayout {
      * @param hourOfDay The current hourOfDay
      * @param minute The current minute
      */
+    /*设置当前日期 */
     public void setCurrentDate(int year, int month,
             int dayOfMonth, int hourOfDay, int minute) {
         setCurrentYear(year);
@@ -434,6 +449,7 @@ public class DateTimePicker extends FrameLayout {
         updateAmPmControl();
     }
 
+    /*关于判定星期几的算法 */
     private void updateDateControl() {
         Calendar cal = Calendar.getInstance();
         cal.setTimeInMillis(mDate.getTimeInMillis());
@@ -448,6 +464,7 @@ public class DateTimePicker extends FrameLayout {
         mDateSpinner.invalidate();
     }
 
+    /*对于判定AM与PM的算法 */
     private void updateAmPmControl() {
         if (mIs24HourView) {
             mAmPmSpinner.setVisibility(View.GONE);
@@ -458,6 +475,7 @@ public class DateTimePicker extends FrameLayout {
         }
     }
 
+    /*对于小时的算法 */
     private void updateHourControl() {
         if (mIs24HourView) {
             mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);

src/Notes-master3/app/src/main/java/net/micode/notes/ui/DateTimePickerDialog.java

@@ -1,27 +1,11 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package net.micode.notes.ui;
-
+ 
 import java.util.Calendar;
-
+ 
 import net.micode.notes.R;
 import net.micode.notes.ui.DateTimePicker;
 import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener;
-
+ 
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
@@ -29,21 +13,30 @@ import android.content.DialogInterface.OnClickListener;
 import android.text.format.DateFormat;
 import android.text.format.DateUtils;
 
+/**
+ * 实现设置提醒时间的对话框
+ */
 public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
-
+    //创建一个Calendar类型的变量 mDate，方便时间的操作
     private Calendar mDate = Calendar.getInstance();
     private boolean mIs24HourView;
+    //声明一个时间日期滚动选择控件 mOnDateTimeSetListener
     private OnDateTimeSetListener mOnDateTimeSetListener;
+    //DateTimePicker控件，控件一般用于让用户可以从日期列表中选择单个值。
+    //运行时，单击控件边上的下拉箭头，会显示为两个部分：一个下拉列表，一个用于选择日期的
     private DateTimePicker mDateTimePicker;
-
+ 
     public interface OnDateTimeSetListener {
         void OnDateTimeSet(AlertDialog dialog, long date);
     }
-
+ 
     public DateTimePickerDialog(Context context, long date) {
+    	//对该界面对话框的实例化
         super(context);
+        //对数据库的操作
         mDateTimePicker = new DateTimePicker(context);
         setView(mDateTimePicker);
+        //添加一个子视图
         mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
             public void onDateTimeChanged(DateTimePicker view, int year, int month,
                     int dayOfMonth, int hourOfDay, int minute) {
@@ -52,26 +45,29 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
                 mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
                 mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
                 mDate.set(Calendar.MINUTE, minute);
+                //将视图中的各选项设置为系统当前时间
                 updateTitle(mDate.getTimeInMillis());
             }
         });
-        mDate.setTimeInMillis(date);
+        mDate.setTimeInMillis(date);//得到系统时间
-        mDate.set(Calendar.SECOND, 0);
+        mDate.set(Calendar.SECOND, 0);//将秒数设置为0
         mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
         setButton(context.getString(R.string.datetime_dialog_ok), this);
-        setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
+        setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);//设置按钮
-        set24HourView(DateFormat.is24HourFormat(this.getContext()));
+        set24HourView(DateFormat.is24HourFormat(this.getContext()));//时间标准化打印
         updateTitle(mDate.getTimeInMillis());
     }
-
+ 
     public void set24HourView(boolean is24HourView) {
         mIs24HourView = is24HourView;
     }
-
+ 
+    /*将时间日期滚动选择控件实例化*/
     public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
         mOnDateTimeSetListener = callBack;
     }
-
+ 
+    /*android开发中常见日期管理工具类（API）——DateUtils：按照上下午显示时间*/
     private void updateTitle(long date) {
         int flag =
             DateUtils.FORMAT_SHOW_YEAR |
@@ -80,11 +76,13 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
         flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
         setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
     }
-
+ 
+    /*第一个参数arg0是接收到点击事件的对话框
+      第二个参数arg1是该对话框上的按钮*/
     public void onClick(DialogInterface arg0, int arg1) {
         if (mOnDateTimeSetListener != null) {
             mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
         }
     }
-
+ 
 }

src/Notes-master3/app/src/main/java/net/micode/notes/ui/DropdownMenu.java

@@ -1,21 +1,5 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package net.micode.notes.ui;
-
+ 
 import android.content.Context;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -24,19 +8,21 @@ import android.view.View.OnClickListener;
 import android.widget.Button;
 import android.widget.PopupMenu;
 import android.widget.PopupMenu.OnMenuItemClickListener;
-
+ 
 import net.micode.notes.R;
-
+ 
 public class DropdownMenu {
     private Button mButton;
-    private PopupMenu mPopupMenu;
+    private PopupMenu mPopupMenu;//声明一个下拉菜单
     private Menu mMenu;
-
+ 
     public DropdownMenu(Context context, Button button, int menuId) {
         mButton = button;
-        mButton.setBackgroundResource(R.drawable.dropdown_icon);
+        mButton.setBackgroundResource(R.drawable.dropdown_icon);//设置这个view的背景
         mPopupMenu = new PopupMenu(context, mButton);
         mMenu = mPopupMenu.getMenu();
+        //MenuInflater是用来实例化Menu目录下的Menu布局文件
+        //根据ID来确认menu的内容选项
         mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
         mButton.setOnClickListener(new OnClickListener() {
             public void onClick(View v) {
@@ -44,18 +30,21 @@ public class DropdownMenu {
             }
         });
     }
-
+ 
+    /*设置菜单的监听 */
     public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
         if (mPopupMenu != null) {
             mPopupMenu.setOnMenuItemClickListener(listener);
         }
     }
-
+ 
+    /*对于菜单选项的初始化，根据索引搜索菜单需要的选项 */
     public MenuItem findItem(int id) {
         return mMenu.findItem(id);
     }
-
+ 
+    /*布局文件，设置标题 */
     public void setTitle(CharSequence title) {
         mButton.setText(title);
     }
-}
+}

src/Notes-master3/app/src/main/java/net/micode/notes/ui/FoldersListAdapter.java

@@ -1,21 +1,5 @@
-/*
- * 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;
@@ -23,32 +7,43 @@ import android.view.ViewGroup;
 import android.widget.CursorAdapter;
 import android.widget.LinearLayout;
 import android.widget.TextView;
-
+ 
 import net.micode.notes.R;
 import net.micode.notes.data.Notes;
 import net.micode.notes.data.Notes.NoteColumns;
+ 
+/**
+ *  CursorAdapter是Cursor和ListView的接口
+    FoldersListAdapter继承了CursorAdapter的类
+	主要作用是便签数据库和用户的交互
+	这里就是用folder（文件夹）的形式展现给用户
+ */
 
-
+ /*调用数据库中便签的ID和片段 */
 public class FoldersListAdapter extends CursorAdapter {
     public static final String [] PROJECTION = {
         NoteColumns.ID,
         NoteColumns.SNIPPET
     };
-
+ 
     public static final int ID_COLUMN   = 0;
     public static final int NAME_COLUMN = 1;
-
+ 
+    /*数据库操作 */
     public FoldersListAdapter(Context context, Cursor c) {
         super(context, c);
         // TODO Auto-generated constructor stub
     }
-
+ 
     @Override
+    /*创建一个文件夹，对于各文件夹中子标签的初始化 */
     public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return new FolderListItem(context);
+        //ViewGroup是容器
+    	return new FolderListItem(context);
     }
-
+ 
     @Override
+    /*将各个布局文件绑定起来 */
     public void bindView(View view, Context context, Cursor cursor) {
         if (view instanceof FolderListItem) {
             String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
@@ -56,25 +51,26 @@ public class FoldersListAdapter extends CursorAdapter {
             ((FolderListItem) view).bind(folderName);
         }
     }
-
+ 
+    /*根据数据库中标签的ID得到标签的各项内容 */
     public String getFolderName(Context context, int position) {
         Cursor cursor = (Cursor) getItem(position);
         return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
                 .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
     }
-
+ 
     private class FolderListItem extends LinearLayout {
         private TextView mName;
-
+ 
         public FolderListItem(Context context) {
-            super(context);
+            super(context);//操作数据库
-            inflate(context, R.layout.folder_list_item, this);
+            inflate(context, R.layout.folder_list_item, this);//根据布局文件的名字等信息将其找出来
             mName = (TextView) findViewById(R.id.tv_folder_name);
         }
-
+ 
         public void bind(String name) {
             mName.setText(name);
         }
     }
-
+ 
-}
+}

src/Notes-master3/app/src/main/java/net/micode/notes/ui/NoteEditText.java

@@ -37,6 +37,9 @@ import net.micode.notes.R;
 import java.util.HashMap;
 import java.util.Map;
 
+/**
+ * 实现便签编辑活动
+ */
 public class NoteEditText extends EditText {
     private static final String TAG = "NoteEditText";
     private int mIndex;

src/Notes-master3/app/src/main/java/net/micode/notes/ui/NoteItemData.java

@@ -1,31 +1,17 @@
-/*
- * 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.text.TextUtils;
-
+ 
 import net.micode.notes.data.Contact;
 import net.micode.notes.data.Notes;
 import net.micode.notes.data.Notes.NoteColumns;
 import net.micode.notes.tool.DataUtils;
-
+ 
-
+/**
+ * 便签项数据
+ */
 public class NoteItemData {
     static final String [] PROJECTION = new String [] {
         NoteColumns.ID,
@@ -54,7 +40,7 @@ public class NoteItemData {
     private static final int TYPE_COLUMN                  = 9;
     private static final int WIDGET_ID_COLUMN             = 10;
     private static final int WIDGET_TYPE_COLUMN           = 11;
-
+ 
     private long mId;
     private long mAlertDate;
     private int mBgColorId;
@@ -69,14 +55,15 @@ public class NoteItemData {
     private int mWidgetType;
     private String mName;
     private String mPhoneNumber;
-
+ 
     private boolean mIsLastItem;
     private boolean mIsFirstItem;
     private boolean mIsOnlyOneItem;
     private boolean mIsOneNoteFollowingFolder;
     private boolean mIsMultiNotesFollowingFolder;
-
+    //初始化NoteItemData，主要利用光标cursor获取的东西
-    public NoteItemData(Context context, Cursor cursor) {
+    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);
@@ -91,134 +78,139 @@ public class NoteItemData {
         mType = cursor.getInt(TYPE_COLUMN);
         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;
                 }
             }
         }
-
+ 
         if (mName == null) {
             mName = "";
         }
         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
     public boolean isOneFollowingFolder() {
         return mIsOneNoteFollowingFolder;
     }
-
+ 
     public boolean isMultiFollowingFolder() {
         return mIsMultiNotesFollowingFolder;
     }
-
+ 
     public boolean isLast() {
         return mIsLastItem;
     }
-
+ 
     public String getCallName() {
         return mName;
     }
-
+ 
     public boolean isFirst() {
         return mIsFirstItem;
     }
-
+ 
     public boolean isSingle() {
         return mIsOnlyOneItem;
     }
-
+ 
     public long getId() {
         return mId;
     }
-
+ 
     public long getAlertDate() {
         return mAlertDate;
     }
-
+ 
     public long getCreatedDate() {
         return mCreatedDate;
     }
-
+ 
     public boolean hasAttachment() {
         return mHasAttachment;
     }
-
+ 
     public long getModifiedDate() {
         return mModifiedDate;
     }
-
+ 
     public int getBgColorId() {
         return mBgColorId;
     }
-
+ 
     public long getParentId() {
         return mParentId;
     }
-
+ 
     public int getNotesCount() {
         return mNotesCount;
     }
-
+ 
     public long getFolderId () {
         return mParentId;
     }
-
+ 
     public int getType() {
         return mType;
     }
-
+ 
     public int getWidgetType() {
         return mWidgetType;
     }
-
+ 
     public int getWidgetId() {
         return mWidgetId;
     }
-
+ 
     public String getSnippet() {
         return mSnippet;
     }
-
+ 
     public boolean hasAlert() {
         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));
     }
-
+ 
     public static int getNoteType(Cursor cursor) {
         return cursor.getInt(TYPE_COLUMN);
     }
-}
+}

src/Notes-master3/app/src/main/java/net/micode/notes/ui/NotesListActivity.java

@@ -78,6 +78,9 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.util.HashSet;
 
+/**
+ * 主界面，实现处理文件夹列表的功能
+ */
 public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener {
     private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
 
@@ -319,26 +322,28 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                 return true;
             }
 
-            int itemId = item.getItemId();
+            switch (item.getItemId()) {
-            if (itemId == R.id.delete) {
+                case R.id.delete:
-                AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
+                    AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
-                builder.setTitle(getString(R.string.alert_title_delete));
+                    builder.setTitle(getString(R.string.alert_title_delete));
-                builder.setIcon(android.R.drawable.ic_dialog_alert);
+                    builder.setIcon(android.R.drawable.ic_dialog_alert);
-                builder.setMessage(getString(R.string.alert_message_delete_notes,
+                    builder.setMessage(getString(R.string.alert_message_delete_notes,
-                        mNotesListAdapter.getSelectedCount()));
+                                             mNotesListAdapter.getSelectedCount()));
-                builder.setPositiveButton(android.R.string.ok,
+                    builder.setPositiveButton(android.R.string.ok,
-                        new DialogInterface.OnClickListener() {
+                                             new DialogInterface.OnClickListener() {
-                            public void onClick(DialogInterface dialog,
+                                                 public void onClick(DialogInterface dialog,
-                                                int which) {
+                                                         int which) {
-                                batchDelete();
+                                                     batchDelete();
-                            }
+                                                 }
-                        });
+                                             });
-                builder.setNegativeButton(android.R.string.cancel, null);
+                    builder.setNegativeButton(android.R.string.cancel, null);
-                builder.show();
+                    builder.show();
-            } else if (itemId == R.id.move) {
+                    break;
-                startQueryDestinationFolders();
+                case R.id.move:
-            } else {
+                    startQueryDestinationFolders();
-                return false;
+                    break;
+                default:
+                    return false;
             }
             return true;
         }
@@ -556,8 +561,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
     }
 
     public void onClick(View v) {
-        if (v.getId() == R.id.btn_new_note) {
+        switch (v.getId()) {
-            createNewNote();
+            case R.id.btn_new_note:
+                createNewNote();
+                break;
+            default:
+                break;
         }
     }
 
@@ -774,27 +783,40 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
-        int itemId = item.getItemId();
+        switch (item.getItemId()) {
-        if (itemId == R.id.menu_new_folder) {
+            case R.id.menu_new_folder: {
-            showCreateOrModifyFolderDialog(true);
+                showCreateOrModifyFolderDialog(true);
-        } else if (itemId == R.id.menu_export_text) {
+                break;
-            exportNoteToText();
+            }
-        } else if (itemId == R.id.menu_sync) {
+            case R.id.menu_export_text: {
-            if (isSyncMode()) {
+                exportNoteToText();
-                if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) {
+                break;
-                    GTaskSyncService.startSync(this);
+            }
+            case R.id.menu_sync: {
+                if (isSyncMode()) {
+                    if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) {
+                        GTaskSyncService.startSync(this);
+                    } else {
+                        GTaskSyncService.cancelSync(this);
+                    }
                 } else {
-                    GTaskSyncService.cancelSync(this);
+                    startPreferenceActivity();
                 }
-            } else {
+                break;
+            }
+            case R.id.menu_setting: {
                 startPreferenceActivity();
+                break;
+            }
+            case R.id.menu_new_note: {
+                createNewNote();
+                break;
             }
-        } else if (itemId == R.id.menu_setting) {
+            case R.id.menu_search:
-            startPreferenceActivity();
+                onSearchRequested();
-        } else if (itemId == R.id.menu_new_note) {
+                break;
-            createNewNote();
+            default:
-        } else if (itemId == R.id.menu_search) {
+                break;
-            onSearchRequested();
         }
         return true;
     }

src/Notes-master3/app/src/main/java/net/micode/notes/ui/NotesListAdapter.java

@@ -1,85 +1,109 @@
-/*
- * 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.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;
-
+ 
-
+ 
+/*
+ * 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<Integer, Boolean> mSelectedIndex;
-    private int mNotesCount;
+    private int mNotesCount;    //便签数
-    private boolean mChoiceMode;
+    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);
+        super(context, null);  //父类对象置空
-        mSelectedIndex = new HashMap<Integer, Boolean>();
+        mSelectedIndex = new HashMap<Integer, Boolean>();  //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<Long> getSelectedItemIds() {
         HashSet<Long> itemSet = new HashSet<Long>();
+        //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<AppWidgetAttribute> getSelectedWidget() {
         HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>();
         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();
@@ -127,58 +168,90 @@ 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<Boolean> values = mSelectedIndex.values();
+        //首先获取选项下标的值
         if (null == values) {
             return 0;
         }
         Iterator<Boolean> 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;
         }
         return mSelectedIndex.get(position);
     }
-
+ 
     @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
         }
-    }
+    } 
-}
+}

src/Notes-master3/app/src/main/java/net/micode/notes/ui/NotesListItem.java

@@ -1,21 +1,5 @@
-/*
- * 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.text.format.DateUtils;
 import android.view.View;
@@ -23,44 +7,54 @@ import android.widget.CheckBox;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
-
+ 
 import net.micode.notes.R;
 import net.micode.notes.data.Notes;
 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 ImageView mAlert;//闹钟图片
-    private TextView mTitle;
+    private TextView mTitle;  //标题
-    private TextView mTime;
+    private TextView mTime;   //时间
-    private TextView mCallName;
+    private TextView mCallName;    //
-    private NoteItemData mItemData;
+    private NoteItemData mItemData; //标签数据
-    private CheckBox mCheckBox;
+    private CheckBox mCheckBox;    //打钩框
-
+ 
+    /**
+    *初始化基本信息
+    */
     public NotesListItem(Context context) {
-        super(context);
+        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(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.setVisibility(View.VISIBLE);  ///设置可见行为可见
-            mCheckBox.setChecked(checked);
+            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 +63,9 @@ 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);
@@ -78,7 +73,7 @@ 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,
@@ -87,36 +82,39 @@ public class NotesListItem extends LinearLayout {
             } 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;
     }
-}
+}

src/Notes-master3/app/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java

@@ -1,21 +1,5 @@
-/*
- * 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;
@@ -41,108 +25,137 @@ 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;
-
+ 
-
+/*
+ *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";
+    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_SYNC_ACCOUNT_NAME = "pref_key_account_name";
+    public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time";//同步时间
-
-    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";//同步密码
-    private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key";
+    private static final String AUTHORITIES_FILTER_KEY = "authorities";//本地密码
-
+    private PreferenceCategory mAccountCategory;//账户分组
-    private static final String AUTHORITIES_FILTER_KEY = "authorities";
+    private GTaskReceiver mReceiver;//同步任务接收器
-
+    private Account[] mOriAccounts;//账户
-    private PreferenceCategory mAccountCategory;
+    private boolean mHasAddedAccount;//账户的hash标记
-
+ 
-    private GTaskReceiver mReceiver;
-
-    private Account[] mOriAccounts;
-
-    private boolean mHasAddedAccount;
-
     @Override
+    /*创建一个activity*/
     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) {
-                for (Account accountNew : accounts) {
+                //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;
                     }
                 }
             }
         }
-
+ 
         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)
                             .show();
@@ -150,22 +163,30 @@ public class NotesPreferenceActivity extends PreferenceActivity {
                 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 +194,61 @@ 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*/
     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*/
     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;
@@ -224,84 +256,111 @@ 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"
                 });
                 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*/
     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*/
     private Account[] getGoogleAccounts() {
         AccountManager accountManager = AccountManager.get(this);
         return accountManager.getAccountsByType("com.google");
     }
-
+ 
+    /*函数功能：设置同步账户*/
     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() {
                 public void run() {
@@ -311,24 +370,31 @@ 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*/
     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() {
             public void run() {
@@ -338,51 +404,70 @@ 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*/
     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*/
     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*/
     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)) {
-                TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
+                //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;
         }
     }
 }
+