注释了ui包大部分代码

src/Notes/app/src/main/java/net/micode/notes/ui/AlarmAlertActivity.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.app.Activity;
@@ -39,58 +23,81 @@ import net.micode.notes.tool.DataUtils;
 
 import java.io.IOException;
 
-
 public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
-    private long mNoteId;
+    private long mNoteId;      //文本在数据库存储中的ID号 
-    private String mSnippet;
+    private String mSnippet;   //闹钟提示时出现的文本片段
     private static final int SNIPPET_PREW_MAX_LEN = 60;
     MediaPlayer mPlayer;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        //Bundle类型的数据与Map类型的数据相似，都是以key-value的形式存储数据的
+        //onsaveInstanceState方法是用来保存Activity的状态的
+        //能从onCreate的参数savedInsanceState中获得状态数据
         requestWindowFeature(Window.FEATURE_NO_TITLE);
+        //界面显示——无标题
 
         final Window win = getWindow();
         win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
 
         if (!isScreenOn()) {
             win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
+                    //保持窗体点亮
                     | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
+                    //将窗体点亮
                     | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
+                    //允许窗体点亮时锁屏
                     | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
-        }
+        }//在手机锁屏后如果到了闹钟提示时间，点亮屏幕
 
         Intent intent = getIntent();
 
         try {
             mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
             mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
+            //根据ID从数据库中获取标签的内容；
+            //getContentResolver（）是实现数据共享，实例存储。
             mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
                     SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
                     : mSnippet;
+            //判断标签片段是否达到符合长度
         } catch (IllegalArgumentException e) {
             e.printStackTrace();
             return;
         }
-
+        /*
+        try
+        {
+        	// 代码区
+        }
+        catch(Exception e)
+        {
+        	// 异常处理
+        }
+                     代码区如果有错误，就会返回所写异常的处理。*/
         mPlayer = new MediaPlayer();
         if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
             showActionDialog();
+            //弹出对话框
             playAlarmSound();
+            //闹钟提示音激发
         } else {
             finish();
+            //完成闹钟动作
         }
     }
 
     private boolean isScreenOn() {
+        //判断屏幕是否锁屏，调用系统函数判断，最后返回值是布尔类型
         PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
         return pm.isScreenOn();
     }
 
     private void playAlarmSound() {
+        //闹钟提示音激发
         Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
-
+        //调用系统的铃声管理URI，得到闹钟提示音
         int silentModeStreams = Settings.System.getInt(getContentResolver(),
                 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
 
@@ -101,12 +108,19 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
         }
         try {
             mPlayer.setDataSource(this, url);
+            //方法：setDataSource(Context context, Uri uri) 
+            //解释：无返回值，设置多媒体数据来源【根据 Uri】
             mPlayer.prepare();
+            //准备同步
             mPlayer.setLooping(true);
+            //设置是否循环播放
             mPlayer.start();
+            //开始播放
         } catch (IllegalArgumentException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
+            //e.printStackTrace()函数功能是抛出异常， 还将显示出更深的调用信息
+            //System.out.println(e)，这个方法打印出异常，并且输出在哪里出现的异常
         } catch (SecurityException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
@@ -121,37 +135,57 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
 
     private void showActionDialog() {
         AlertDialog.Builder dialog = new AlertDialog.Builder(this);
+        //AlertDialog的构造方法全部是Protected的
+        //所以不能直接通过new一个AlertDialog来创建出一个AlertDialog。
+        //要创建一个AlertDialog，就要用到AlertDialog.Builder中的create()方法
+        //如这里的dialog就是新建了一个AlertDialog
         dialog.setTitle(R.string.app_name);
+        //为对话框设置标题
         dialog.setMessage(mSnippet);
+        //为对话框设置内容
         dialog.setPositiveButton(R.string.notealert_ok, this);
+        //给对话框添加"Yes"按钮
         if (isScreenOn()) {
             dialog.setNegativeButton(R.string.notealert_enter, this);
-        }
+        }//对话框添加"No"按钮
         dialog.show().setOnDismissListener(this);
     }
 
     public void onClick(DialogInterface dialog, int which) {
         switch (which) {
+            //用which来选择click后下一步的操作
             case DialogInterface.BUTTON_NEGATIVE:
+                //这是取消操作
                 Intent intent = new Intent(this, NoteEditActivity.class);
+                //实现两个类间的数据传输
                 intent.setAction(Intent.ACTION_VIEW);
+                //设置动作属性
                 intent.putExtra(Intent.EXTRA_UID, mNoteId);
+                //实现key-value对
+                //EXTRA_UID为key；mNoteId为键
                 startActivity(intent);
+                //开始动作
                 break;
             default:
+                //这是确定操作
                 break;
         }
     }
 
     public void onDismiss(DialogInterface dialog) {
+        //忽略
         stopAlarmSound();
+        //停止闹钟声音
         finish();
+        //完成该动作
     }
 
     private void stopAlarmSound() {
         if (mPlayer != null) {
             mPlayer.stop();
+            //停止播放
             mPlayer.release();
+            //释放MediaPlayer对象
             mPlayer = null;
         }
     }

src/Notes/app/src/main/java/net/micode/notes/ui/AlarmInitReceiver.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.app.AlarmManager;
@@ -31,21 +15,25 @@ import net.micode.notes.data.Notes.NoteColumns;
 public class AlarmInitReceiver extends BroadcastReceiver {
 
     private static final String [] PROJECTION = new String [] {
-        NoteColumns.ID,
+            NoteColumns.ID,
-        NoteColumns.ALERTED_DATE
+            NoteColumns.ALERTED_DATE
     };
-
+    //对数据库的操作，调用标签ID和闹钟时间
     private static final int COLUMN_ID                = 0;
     private static final int COLUMN_ALERTED_DATE      = 1;
 
     @Override
     public void onReceive(Context context, Intent intent) {
         long currentDate = System.currentTimeMillis();
+        //System.currentTimeMillis()产生一个当前的毫秒
+        //这个毫秒其实就是自1970年1月1日0时起的毫秒数
         Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
                 PROJECTION,
                 NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
                 new String[] { String.valueOf(currentDate) },
+                //将long变量currentDate转化为字符串
                 null);
+        //Cursor在这里的作用是通过查找数据库中的标签内容，找到和当前系统时间相等的标签
 
         if (c != null) {
             if (c.moveToFirst()) {
@@ -61,5 +49,8 @@ public class AlarmInitReceiver extends BroadcastReceiver {
             }
             c.close();
         }
+        //然而通过网上查找资料发现，对于闹钟机制的启动，通常需要上面的几个步骤
+        //如新建Intent、PendingIntent以及AlarmManager等
+        //这里就是根据数据库里的闹钟时间创建一个闹钟机制
     }
 }

src/Notes/app/src/main/java/net/micode/notes/ui/AlarmReceiver.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.BroadcastReceiver;
@@ -24,7 +8,13 @@ public class AlarmReceiver extends BroadcastReceiver {
     @Override
     public void onReceive(Context context, Intent intent) {
         intent.setClass(context, AlarmAlertActivity.class);
+        //启动AlarmAlertActivity
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        //activity要存在于activity的栈中，而非activity的途径启动activity时必然不存在一个activity的栈
+        //所以要新起一个栈装入启动的activity
         context.startActivity(intent);
     }
 }
+//这是实现alarm这个功能最接近用户层的包，基于上面的两个包，
+//作用还需要深究但是对于setClass和addFlags的
+ 

src/Notes/app/src/main/java/net/micode/notes/ui/DateTimePicker.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 java.text.DateFormatSymbols;
@@ -29,7 +13,8 @@ import android.widget.FrameLayout;
 import android.widget.NumberPicker;
 
 public class DateTimePicker extends FrameLayout {
-
+    //FrameLayout是布局模板之一
+    //所有的子元素全部在屏幕的右上方
     private static final boolean DEFAULT_ENABLE_STATE = true;
 
     private static final int HOURS_IN_HALF_DAY = 12;
@@ -45,13 +30,15 @@ public class DateTimePicker extends FrameLayout {
     private static final int MINUT_SPINNER_MAX_VAL = 59;
     private static final int AMPM_SPINNER_MIN_VAL = 0;
     private static final int AMPM_SPINNER_MAX_VAL = 1;
-
+    //初始化控件
     private final NumberPicker mDateSpinner;
     private final NumberPicker mHourSpinner;
     private final NumberPicker mMinuteSpinner;
     private final NumberPicker mAmPmSpinner;
+    //NumberPicker是数字选择器
+    //这里定义的四个变量全部是在设置闹钟时需要选择的变量（如日期、时、分、上午或者下午）
     private Calendar mDate;
-
+    //定义了Calendar类型的变量mDate，用于操作时间
     private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
 
     private boolean mIsAm;
@@ -71,41 +58,49 @@ public class DateTimePicker extends FrameLayout {
             updateDateControl();
             onDateTimeChanged();
         }
-    };
+    };//OnValueChangeListener，这是时间改变监听器，这里主要是对日期的监听
+    //将现在日期的值传递给mDate；updateDateControl是同步操作
 
     private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
+        //这里是对 小时（Hour） 的监听
         @Override
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
             boolean isDateChanged = false;
             Calendar cal = Calendar.getInstance();
+            //声明一个Calendar的变量cal，便于后续的操作
             if (!mIs24HourView) {
                 if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
                     cal.setTimeInMillis(mDate.getTimeInMillis());
                     cal.add(Calendar.DAY_OF_YEAR, 1);
                     isDateChanged = true;
+                    //这里是对于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;
                 }
+                //这里是对于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();
-                }
+                }//这里是对于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;
+                    //这里是对于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;
                 }
-            }
+            } //这里是对于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);
+            //通过数字选择器对newHour的赋值
             mDate.set(Calendar.HOUR_OF_DAY, newHour);
+            //通过set函数将新的Hour值传给mDate
             onDateTimeChanged();
             if (isDateChanged) {
                 setCurrentYear(cal.get(Calendar.YEAR));
@@ -117,15 +112,19 @@ public class DateTimePicker extends FrameLayout {
 
     private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
         @Override
+        //这里是对 分钟（Minute）改变的监听
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
             int minValue = mMinuteSpinner.getMinValue();
             int maxValue = mMinuteSpinner.getMaxValue();
             int offset = 0;
+            //设置offset，作为小时改变的一个记录数据
             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());
@@ -145,6 +144,7 @@ public class DateTimePicker extends FrameLayout {
     };
 
     private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
+        //对AM和PM的监听
         @Override
         public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
             mIsAm = !mIsAm;
@@ -160,24 +160,27 @@ public class DateTimePicker extends FrameLayout {
 
     public interface OnDateTimeChangedListener {
         void onDateTimeChanged(DateTimePicker view, int year, int month,
-                int dayOfMonth, int hourOfDay, int minute);
+                               int dayOfMonth, int hourOfDay, int minute);
     }
 
     public DateTimePicker(Context context) {
         this(context, System.currentTimeMillis());
-    }
+    }//通过对数据库的访问，获取当前的系统时间
 
     public DateTimePicker(Context context, long date) {
         this(context, date, DateFormat.is24HourFormat(context));
-    }
+    }//上面函数的得到的是一个天文数字（1970至今的秒数），需要DateFormat将其变得有意义
 
     public DateTimePicker(Context context, long date, boolean is24HourView) {
         super(context);
+        //获取系统时间
         mDate = Calendar.getInstance();
         mInitialising = true;
         mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
         inflate(context, R.layout.datetime_picker, this);
-
+        //如果当前Activity里用到别的layout，比如对话框layout
+        //还要设置这个layout上的其他组件的内容，就必须用inflate()方法先将对话框的layout找出来
+        //然后再用findViewById()找到它上面的其它组件
         mDateSpinner = (NumberPicker) findViewById(R.id.date);
         mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);
         mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);
@@ -185,7 +188,7 @@ public class DateTimePicker extends FrameLayout {
 
         mHourSpinner = (NumberPicker) findViewById(R.id.hour);
         mHourSpinner.setOnValueChangedListener(mOnHourChangedListener);
-        mMinuteSpinner =  (NumberPicker) findViewById(R.id.minute);
+        mMinuteSpinner = (NumberPicker) findViewById(R.id.minute);
         mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL);
         mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL);
         mMinuteSpinner.setOnLongPressUpdateInterval(100);
@@ -226,7 +229,9 @@ public class DateTimePicker extends FrameLayout {
         mAmPmSpinner.setEnabled(enabled);
         mIsEnabled = enabled;
     }
-
+    //存在疑问！！！！！！！！！！！！！setEnabled的作用
+    //下面的代码通过原程序的注释已经比较清晰，另外可以通过函数名来判断
+    //下面的各函数主要是对上面代码引用到的各函数功能的实现
     @Override
     public boolean isEnabled() {
         return mIsEnabled;
@@ -239,7 +244,7 @@ public class DateTimePicker extends FrameLayout {
      */
     public long getCurrentDateInTimeMillis() {
         return mDate.getTimeInMillis();
-    }
+    }//实现函数——得到当前的秒数
 
     /**
      * Set the current date
@@ -251,7 +256,7 @@ public class DateTimePicker extends FrameLayout {
         cal.setTimeInMillis(date);
         setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH),
                 cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
-    }
+    }//实现函数功能——设置当前的时间，参数是date
 
     /**
      * Set the current date
@@ -263,19 +268,20 @@ public class DateTimePicker extends FrameLayout {
      * @param minute The current minute
      */
     public void setCurrentDate(int year, int month,
-            int dayOfMonth, int hourOfDay, int minute) {
+                               int dayOfMonth, int hourOfDay, int minute) {
         setCurrentYear(year);
         setCurrentMonth(month);
         setCurrentDay(dayOfMonth);
         setCurrentHour(hourOfDay);
         setCurrentMinute(minute);
-    }
+    }//实现函数功能——设置当前的时间，参数是各详细的变量
 
     /**
      * Get current year
      *
      * @return The current year
      */
+    //下面是得到year、month、day等值
     public int getCurrentYear() {
         return mDate.get(Calendar.YEAR);
     }
@@ -446,7 +452,7 @@ public class DateTimePicker extends FrameLayout {
         mDateSpinner.setDisplayedValues(mDateDisplayValues);
         mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2);
         mDateSpinner.invalidate();
-    }
+    }// 对于星期几的算法
 
     private void updateAmPmControl() {
         if (mIs24HourView) {
@@ -455,7 +461,7 @@ public class DateTimePicker extends FrameLayout {
             int index = mIsAm ? Calendar.AM : Calendar.PM;
             mAmPmSpinner.setValue(index);
             mAmPmSpinner.setVisibility(View.VISIBLE);
-        }
+        }// 对于上下午操作的算法
     }
 
     private void updateHourControl() {
@@ -465,7 +471,7 @@ public class DateTimePicker extends FrameLayout {
         } else {
             mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW);
             mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW);
-        }
+        }// 对与小时的算法
     }
 
     /**

src/Notes/app/src/main/java/net/micode/notes/ui/DateTimePickerDialog.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 java.util.Calendar;
@@ -32,35 +16,47 @@ import android.text.format.DateUtils;
 public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
 
     private Calendar mDate = Calendar.getInstance();
+    //创建一个Calendar类型的变量 mDate，方便时间的操作
     private boolean mIs24HourView;
     private OnDateTimeSetListener mOnDateTimeSetListener;
+    //声明一个时间日期滚动选择控件 mOnDateTimeSetListener
     private DateTimePicker mDateTimePicker;
+    //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
 
     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) {
+                                          int dayOfMonth, int hourOfDay, int minute) {
                 mDate.set(Calendar.YEAR, year);
                 mDate.set(Calendar.MONTH, month);
                 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);
+        //得到系统时间
         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);
+        //设置按钮
         set24HourView(DateFormat.is24HourFormat(this.getContext()));
+        //时间标准化打印
         updateTitle(mDate.getTimeInMillis());
     }
 
@@ -70,21 +66,22 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
 
     public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
         mOnDateTimeSetListener = callBack;
-    }
+    }//将时间日期滚动选择控件实例化
 
     private void updateTitle(long date) {
         int flag =
-            DateUtils.FORMAT_SHOW_YEAR |
+                DateUtils.FORMAT_SHOW_YEAR |
-            DateUtils.FORMAT_SHOW_DATE |
+                        DateUtils.FORMAT_SHOW_DATE |
-            DateUtils.FORMAT_SHOW_TIME;
+                        DateUtils.FORMAT_SHOW_TIME;
         flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
         setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
-    }
+    }//android开发中常见日期管理工具类（API）——DateUtils：按照上下午显示时间
 
     public void onClick(DialogInterface arg0, int arg1) {
         if (mOnDateTimeSetListener != null) {
             mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
         }
-    }
+    }//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
 
 }

src/Notes/app/src/main/java/net/micode/notes/ui/DropdownMenu.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;
@@ -30,14 +14,18 @@ import net.micode.notes.R;
 public class DropdownMenu {
     private Button mButton;
     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);
+        //设置这个view的背景
         mPopupMenu = new PopupMenu(context, mButton);
         mMenu = mPopupMenu.getMenu();
         mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
+        //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
         mButton.setOnClickListener(new OnClickListener() {
             public void onClick(View v) {
                 mPopupMenu.show();
@@ -48,14 +36,14 @@ public class DropdownMenu {
     public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
         if (mPopupMenu != null) {
             mPopupMenu.setOnMenuItemClickListener(listener);
-        }
+        }//设置菜单的监听
     }
 
     public MenuItem findItem(int id) {
         return mMenu.findItem(id);
-    }
+    }//对于菜单选项的初始化，根据索引搜索菜单需要的选项
 
     public void setTitle(CharSequence title) {
         mButton.setText(title);
-    }
+    }//布局文件，设置标题
 }

src/Notes/app/src/main/java/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;
@@ -30,10 +14,14 @@ import net.micode.notes.data.Notes.NoteColumns;
 
 
 public class FoldersListAdapter extends CursorAdapter {
+    //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
     public static final String [] PROJECTION = {
-        NoteColumns.ID,
+            NoteColumns.ID,
-        NoteColumns.SNIPPET
+            NoteColumns.SNIPPET
-    };
+    };//调用数据库中便签的ID和片段
 
     public static final int ID_COLUMN   = 0;
     public static final int NAME_COLUMN = 1;
@@ -41,12 +29,13 @@ public class FoldersListAdapter extends CursorAdapter {
     public FoldersListAdapter(Context context, Cursor c) {
         super(context, c);
         // TODO Auto-generated constructor stub
-    }
+    }//数据库操作
 
     @Override
     public View newView(Context context, Cursor cursor, ViewGroup parent) {
+        //ViewGroup是容器
         return new FolderListItem(context);
-    }
+    }//创建一个文件夹，对于各文件夹中子标签的初始化
 
     @Override
     public void bindView(View view, Context context, Cursor cursor) {
@@ -55,20 +44,22 @@ public class FoldersListAdapter extends CursorAdapter {
                     .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
             ((FolderListItem) view).bind(folderName);
         }
-    }
+    }//将各个布局文件绑定起来
 
     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);
-    }
+    }//根据数据库中标签的ID得到标签的各项内容
 
     private class FolderListItem extends LinearLayout {
         private TextView mName;
 
         public FolderListItem(Context context) {
             super(context);
+            //操作数据库
             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);
         }
 

src/Notes/app/src/main/java/net/micode/notes/ui/NoteEditActivity.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.app.Activity;
@@ -74,6 +58,8 @@ import java.util.regex.Pattern;
 
 public class NoteEditActivity extends Activity implements OnClickListener,
         NoteSettingChangedListener, OnTextViewChangeListener {
+    //该类主要是针对标签的编辑
+    //继承了系统内部许多和监听有关的类
     private class HeadViewHolder {
         public TextView tvModified;
 
@@ -83,7 +69,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
 
         public ImageView ibSetBgColor;
     }
-
+    //使用Map实现数据存储
     private static final Map<Integer, Integer> sBgSelectorBtnsMap = new HashMap<Integer, Integer>();
     static {
         sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
@@ -123,19 +109,22 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     private HeadViewHolder mNoteHeaderHolder;
 
     private View mHeadViewPanel;
-
+    //私有化一个界面操作mHeadViewPanel，对表头的操作
     private View mNoteBgColorSelector;
-
+    //私有化一个界面操作mNoteBgColorSelector，对背景颜色的操作
     private View mFontSizeSelector;
-
+    //私有化一个界面操作mFontSizeSelector，对标签字体的操作
     private EditText mNoteEditor;
-
+    //声明编辑控件，对文本操作
     private View mNoteEditorPanel;
-
+    //私有化一个界面操作mNoteEditorPanel，文本编辑的控制板
-    private WorkingNote mWorkingNote;
+    public WorkingNote mWorkingNote;
-
+    //对模板WorkingNote的初始化
     private SharedPreferences mSharedPrefs;
+    //私有化SharedPreferences的数据存储方式
+    //它的本质是基于XML文件存储key-value键值对数据
     private int mFontSizeId;
+    //用于操作字体的大小
 
     private static final String PREFERENCE_FONT_SIZE = "pref_font_size";
 
@@ -153,7 +142,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         this.setContentView(R.layout.note_edit);
-
+        //对数据库的访问操作
         if (savedInstanceState == null && !initActivityState(getIntent())) {
             finish();
             return;
@@ -176,9 +165,10 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                 return;
             }
             Log.d(TAG, "Restoring from killed activity");
-        }
+        }//为防止内存不足时程序的终止，在这里有一个保存现场的函数
     }
 
+
     private boolean initActivityState(Intent intent) {
         /**
          * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id,
@@ -188,34 +178,42 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) {
             long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0);
             mUserQuery = "";
-
+            //如果用户实例化标签时，系统并未给出标签ID
             /**
              * Starting from the searched result
              */
+            //根据键值查找ID
             if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) {
                 noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
                 mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY);
             }
-
+            //如果ID在数据库中未找到
             if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) {
                 Intent jump = new Intent(this, NotesListActivity.class);
                 startActivity(jump);
+                //程序将跳转到上面声明的intent——jump
                 showToast(R.string.error_note_not_exist);
                 finish();
                 return false;
-            } else {
+            }
+            //ID在数据库中找到
+            else {
                 mWorkingNote = WorkingNote.load(this, noteId);
                 if (mWorkingNote == null) {
                     Log.e(TAG, "load note failed with note id" + noteId);
+                    //打印出红色的错误信息
                     finish();
                     return false;
                 }
             }
+            //setSoftInputMode——软键盘输入模式
             getWindow().setSoftInputMode(
                     WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN
                             | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
         } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
-            // New note
+            // intent.getAction()
+            // 大多用于broadcast发送广播时给机制（intent）设置一个action，就是一个字符串
+            // 用户可以通过receive（接受）intent，通过 getAction得到的字符串，来决定做什么
             long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);
             int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,
                     AppWidgetManager.INVALID_APPWIDGET_ID);
@@ -223,7 +221,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                     Notes.TYPE_WIDGET_INVALIDE);
             int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID,
                     ResourceParser.getDefaultBgId(this));
-
+            // intent.getInt（Long、String）Extra是对各变量的语法分析
             // Parse call-record note
             String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
             long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0);
@@ -240,15 +238,17 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                         finish();
                         return false;
                     }
+                    //将电话号码与手机的号码簿相关
                 } else {
                     mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId,
                             widgetType, bgResId);
                     mWorkingNote.convertToCallNote(phoneNumber, callDate);
+                    //
                 }
             } else {
                 mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType,
                         bgResId);
-            }
+            }//创建一个新的WorkingNote
 
             getWindow().setSoftInputMode(
                     WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
@@ -262,15 +262,19 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         return true;
     }
 
+
     @Override
     protected void onResume() {
         super.onResume();
         initNoteScreen();
     }
 
+
     private void initNoteScreen() {
+        //对界面的初始化操作
         mNoteEditor.setTextAppearance(this, TextAppearanceResources
                 .getTexAppearanceResource(mFontSizeId));
+        //设置外观
         if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
             switchToListMode(mWorkingNote.getContent());
         } else {
@@ -295,29 +299,33 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         showAlertHeader();
     }
 
+    //设置闹钟的显示
     private void showAlertHeader() {
         if (mWorkingNote.hasClockAlert()) {
             long time = System.currentTimeMillis();
             if (time > mWorkingNote.getAlertDate()) {
                 mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired);
-            } else {
+            }
+            //如果系统时间大于了闹钟设置的时间，那么闹钟失效
+            else {
                 mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString(
                         mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS));
             }
             mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE);
             mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE);
+            //显示闹钟开启的图标
         } else {
             mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE);
             mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE);
         };
     }
 
+
     @Override
     protected void onNewIntent(Intent intent) {
         super.onNewIntent(intent);
         initActivityState(intent);
     }
-
     @Override
     protected void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);
@@ -329,26 +337,27 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (!mWorkingNote.existInDatabase()) {
             saveNote();
         }
+        //在创建一个新的标签时，先在数据库中匹配
+        //如果不存在，那么先在数据库中存储
         outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId());
         Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState");
     }
-
     @Override
     public boolean dispatchTouchEvent(MotionEvent ev) {
         if (mNoteBgColorSelector.getVisibility() == View.VISIBLE
                 && !inRangeOfView(mNoteBgColorSelector, ev)) {
             mNoteBgColorSelector.setVisibility(View.GONE);
             return true;
-        }
+        }//颜色选择器在屏幕上可见
 
         if (mFontSizeSelector.getVisibility() == View.VISIBLE
                 && !inRangeOfView(mFontSizeSelector, ev)) {
             mFontSizeSelector.setVisibility(View.GONE);
             return true;
-        }
+        }//字体大小选择器在屏幕上可见
         return super.dispatchTouchEvent(ev);
     }
-
+    //对屏幕触控的坐标进行操作
     private boolean inRangeOfView(View view, MotionEvent ev) {
         int []location = new int[2];
         view.getLocationOnScreen(location);
@@ -357,9 +366,11 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (ev.getX() < x
                 || ev.getX() > (x + view.getWidth())
                 || ev.getY() < y
-                || ev.getY() > (y + view.getHeight())) {
+                || ev.getY() > (y + view.getHeight()))
-                    return false;
+        //如果触控的位置超出了给定的范围，返回false
-                }
+        {
+            return false;
+        }
         return true;
     }
 
@@ -405,7 +416,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         }
         clearSettingState();
     }
-
+    //和桌面小工具的同步
     private void updateWidget() {
         Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
         if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) {
@@ -418,13 +429,14 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         }
 
         intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] {
-            mWorkingNote.getWidgetId()
+                mWorkingNote.getWidgetId()
         });
 
         sendBroadcast(intent);
         setResult(RESULT_OK, intent);
     }
 
+
     public void onClick(View v) {
         int id = v.getId();
         if (id == R.id.btn_set_bg_color) {
@@ -472,14 +484,13 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         }
         return false;
     }
-
     public void onBackgroundColorChanged() {
         findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
                 View.VISIBLE);
         mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());
         mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());
     }
-
+    //对选择菜单的准备
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
         if (isFinishing()) {
@@ -504,13 +515,19 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         }
         return true;
     }
-
+    /*
+     * 函数功能：动态改变菜单选项内容
+     * 函数实现：如下注释
+     */
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         int itemId = item.getItemId();
+        //创建便签
         if (itemId == R.id.menu_new_note) {
             createNewNote();
-        } else if (itemId == R.id.menu_delete) {
+        }
+        //删除便签
+        else if (itemId == R.id.menu_delete) {
             AlertDialog.Builder builder = new AlertDialog.Builder(this);
             builder.setTitle(getString(R.string.alert_title_delete));
             builder.setIcon(android.R.drawable.ic_dialog_alert);
@@ -543,27 +560,37 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         return true;
     }
 
+    /*
+     * 函数功能：建立事件提醒器
+     * 函数实现：如下注释
+     */
     private void setReminder() {
         DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis());
+        // 建立修改时间日期的对话框
         d.setOnDateTimeSetListener(new OnDateTimeSetListener() {
             public void OnDateTimeSet(AlertDialog dialog, long date) {
                 mWorkingNote.setAlertDate(date	, true);
+                //选择提醒的日期
             }
         });
+        //建立时间日期的监听器
         d.show();
+        //显示对话框
     }
 
+
     /**
      * Share note to apps that support {@link Intent#ACTION_SEND} action
      * and {@text/plain} type
      */
+    //共享便签
     private void sendTo(Context context, String info) {
         Intent intent = new Intent(Intent.ACTION_SEND);
         intent.putExtra(Intent.EXTRA_TEXT, info);
         intent.setType("text/plain");
         context.startActivity(intent);
     }
-
+    //创建便签
     private void createNewNote() {
         // Firstly, save current editing notes
         saveNote();
@@ -575,7 +602,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId());
         startActivity(intent);
     }
-
+    //删除便签
     private void deleteCurrentNote() {
         if (mWorkingNote.existInDatabase()) {
             HashSet<Long> ids = new HashSet<Long>();
@@ -597,11 +624,11 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         }
         mWorkingNote.markDeleted(true);
     }
-
+    //判断是否同步
     private boolean isSyncMode() {
         return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
     }
-
+    //设置提醒时间
     public void onClockAlertChanged(long date, boolean set) {
         /**
          * User could set clock to an unsaved note, so before setting the
@@ -631,11 +658,11 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             showToast(R.string.error_note_empty_for_clock);
         }
     }
-
+    //widget改变更新widget
     public void onWidgetChanged() {
         updateWidget();
     }
-
+    //删除编辑文本框触发的事件
     public void onEditTextDelete(int index, String text) {
         int childCount = mEditTextList.getChildCount();
         if (childCount == 1) {
@@ -661,7 +688,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         edit.requestFocus();
         edit.setSelection(length);
     }
-
+    //进入编辑文本框所触发的事件
     public void onEditTextEnter(int index, String text) {
         /**
          * Should not happen, check for debug
@@ -680,7 +707,9 @@ public class NoteEditActivity extends Activity implements OnClickListener,
                     .setIndex(i);
         }
     }
-
+    /*
+     * 函数功能：切换至列表模式
+     */
     private void switchToListMode(String text) {
         mEditTextList.removeAllViews();
         String[] items = text.split("\n");
@@ -697,7 +726,10 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         mNoteEditor.setVisibility(View.GONE);
         mEditTextList.setVisibility(View.VISIBLE);
     }
-
+    /*
+     * 函数功能：获取高亮效果的反馈情况
+     * 函数实现：如下注释
+     */
     private Spannable getHighlightQueryResult(String fullText, String userQuery) {
         SpannableString spannable = new SpannableString(fullText == null ? "" : fullText);
         if (!TextUtils.isEmpty(userQuery)) {
@@ -714,7 +746,10 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         }
         return spannable;
     }
-
+    /*
+     * 函数功能：获取列表项
+     * 函数实现：如下注释
+     */
     private View getListItem(String item, int index) {
         View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null);
         final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
@@ -745,7 +780,10 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         edit.setText(getHighlightQueryResult(item, mUserQuery));
         return view;
     }
-
+    /*
+     * 函数功能：便签内容发生改变所 触发的事件
+     * 函数实现：如下注释
+     */
     public void onTextChange(int index, boolean hasText) {
         if (index >= mEditTextList.getChildCount()) {
             Log.e(TAG, "Wrong index, should not happen");
@@ -758,46 +796,70 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         }
     }
 
+    /*
+     * 函数功能：检查模式和列表模式的切换
+     * 函数实现：如下注释
+     */
     public void onCheckListModeChanged(int oldMode, int newMode) {
         if (newMode == TextNote.MODE_CHECK_LIST) {
             switchToListMode(mNoteEditor.getText().toString());
+            //检查模式切换到列表模式
         } else {
             if (!getWorkingText()) {
                 mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ",
                         ""));
             }
+            //若是获取到文本就改变其检查标记
             mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));
             mEditTextList.setVisibility(View.GONE);
             mNoteEditor.setVisibility(View.VISIBLE);
+            //修改文本编辑器的内容和可见性
         }
     }
-
+    /*
+     * 函数功能：设置勾选选项表并返回是否勾选的标记
+     * 函数实现：如下注释
+     */
     private boolean getWorkingText() {
         boolean hasChecked = false;
+        //初始化check标记
         if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
+            // 若模式为CHECK_LIST
             StringBuilder sb = new StringBuilder();
+            //创建可变字符串
             for (int i = 0; i < mEditTextList.getChildCount(); i++) {
                 View view = mEditTextList.getChildAt(i);
+                //遍历所有子编辑框的视图
                 NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
                 if (!TextUtils.isEmpty(edit.getText())) {
+                    //若文本不为空
                     if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) {
+                        //该选项框已打钩
                         sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n");
                         hasChecked = true;
+                        //扩展字符串为已打钩并把标记置true
                     } else {
                         sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n");
+                        //扩展字符串添加未打钩
                     }
                 }
             }
             mWorkingNote.setWorkingText(sb.toString());
+            //利用编辑好的字符串设置运行便签的内容
         } else {
             mWorkingNote.setWorkingText(mNoteEditor.getText().toString());
+            // 若不是该模式直接用编辑器中的内容设置运行中标签的内容
         }
         return hasChecked;
     }
-
+    /*
+     * 函数功能：保存便签
+     * 函数实现：如下注释
+     */
     private boolean saveNote() {
         getWorkingText();
         boolean saved = mWorkingNote.saveNote();
+        //运行 getWorkingText()之后保存
         if (saved) {
             /**
              * There are two modes from List view to edit view, open one note,
@@ -806,11 +868,16 @@ public class NoteEditActivity extends Activity implements OnClickListener,
              * new node requires to the top of the list. This code
              * {@link #RESULT_OK} is used to identify the create/edit state
              */
+            //如英文注释所说链接RESULT_OK是为了识别保存的2种情况，一是创建后保存，二是修改后保存
             setResult(RESULT_OK);
         }
         return saved;
     }
 
+    /*
+     * 函数功能：将便签发送至桌面
+     * 函数实现：如下注释
+     */
     private void sendToDesktop() {
         /**
          * Before send message to home, we should make sure that current
@@ -819,12 +886,16 @@ public class NoteEditActivity extends Activity implements OnClickListener,
          */
         if (!mWorkingNote.existInDatabase()) {
             saveNote();
+            //若不存在数据也就是新的标签就保存起来先
         }
 
         if (mWorkingNote.getNoteId() > 0) {
+            //若是有内容
             Intent sender = new Intent();
             Intent shortcutIntent = new Intent(this, NoteEditActivity.class);
+            //建立发送到桌面的连接器
             shortcutIntent.setAction(Intent.ACTION_VIEW);
+            //链接为一个视图
             shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId());
             sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
             sender.putExtra(Intent.EXTRA_SHORTCUT_NAME,
@@ -832,9 +903,12 @@ public class NoteEditActivity extends Activity implements OnClickListener,
             sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
                     Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app));
             sender.putExtra("duplicate", true);
+            //将便签的相关信息都添加到要发送的文件里
             sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
+            //设置sneder的行为是发送
             showToast(R.string.info_note_enter_desktop);
             sendBroadcast(sender);
+            //显示到桌面
         } else {
             /**
              * There is the condition that user has input nothing (the note is
@@ -843,20 +917,28 @@ public class NoteEditActivity extends Activity implements OnClickListener,
              */
             Log.e(TAG, "Send to desktop error");
             showToast(R.string.error_note_empty_for_send_to_desktop);
+            //空便签直接报错
         }
     }
-
+    /*
+     * 函数功能：编辑小图标的标题
+     */
     private String makeShortcutIconTitle(String content) {
         content = content.replace(TAG_CHECKED, "");
         content = content.replace(TAG_UNCHECKED, "");
         return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0,
                 SHORTCUT_ICON_TITLE_MAX_LEN) : content;
+        //直接设置为content中的内容并返回，有勾选和未勾选2种
     }
-
+    /*
+     * 函数功能：显示提示的视图
+     */
     private void showToast(int resId) {
         showToast(resId, Toast.LENGTH_SHORT);
     }
-
+    /*
+     * 函数功能：持续显示提示的视图
+     */
     private void showToast(int resId, int duration) {
         Toast.makeText(this, resId, duration).show();
     }

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

@@ -37,15 +37,21 @@ import net.micode.notes.R;
 import java.util.HashMap;
 import java.util.Map;
 
+//类：便签编辑文本类，继承了Android控件EditText
 public class NoteEditText extends EditText {
+    //语句：常量标识
     private static final String TAG = "NoteEditText";
+    //语句：声明整型变量，文本索引
     private int mIndex;
+    //语句：声明整型变量
     private int mSelectionStartBeforeDelete;
 
+    //语句：声明字符串常量，标志电话、网址、邮件
     private static final String SCHEME_TEL = "tel:" ;
     private static final String SCHEME_HTTP = "http:" ;
     private static final String SCHEME_EMAIL = "mailto:" ;
 
+    //语句块：设置映射，将文本内容（电话、网址、邮件）做链接处理
     private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
     static {
         sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
@@ -55,50 +61,60 @@ public class NoteEditText extends EditText {
 
     /**
      * Call by the {@link NoteEditActivity} to delete or add edit text
+     * 接口：该接口用于实现对TextView组件中的文字信息进行修改
      */
     public interface OnTextViewChangeListener {
         /**
          * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
          * and the text is null
+         * 方法：当delete键按下时删除当前编辑的文字块
          */
         void onEditTextDelete(int index, String text);
 
         /**
          * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
          * happen
+         * 方法：当enter键按下时添加一个文字编辑块
          */
         void onEditTextEnter(int index, String text);
 
         /**
          * Hide or show item option when text change
+         * 方法：当文字发生变化时隐藏或者显示设置
          */
         void onTextChange(int index, boolean hasText);
     }
 
+    //语句：声明文本视图变化监听器
     private OnTextViewChangeListener mOnTextViewChangeListener;
 
+    //方法：构造方法，实例化NoteEditText
     public NoteEditText(Context context) {
         super(context, null);
         mIndex = 0;
     }
 
+    //方法：设置索引号
     public void setIndex(int index) {
         mIndex = index;
     }
 
+    //方法：设置文本视图变化监听器
     public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
         mOnTextViewChangeListener = listener;
     }
 
+    //方法：构造方法，是由参数集（文本编辑风格）实例化NoteEditText
     public NoteEditText(Context context, AttributeSet attrs) {
         super(context, attrs, android.R.attr.editTextStyle);
     }
-
+    //方法：构造方法，是由参数集（文本编辑风格、定义风格）实例化NoteEditText
     public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
         // TODO Auto-generated constructor stub
     }
 
+    //方法：监听触摸事件
     @Override
     public boolean onTouchEvent(MotionEvent event) {
         switch (event.getAction()) {
@@ -111,25 +127,38 @@ public class NoteEditText extends EditText {
                 x += getScrollX();
                 y += getScrollY();
 
+                //语句：获取布局
                 Layout layout = getLayout();
+                //语句：获取纵向的行数
                 int line = layout.getLineForVertical(y);
+                //语句：获取横向的偏移量
                 int off = layout.getOffsetForHorizontal(line, x);
                 Selection.setSelection(getText(), off);
                 break;
         }
-
+        //语句：继续调用父类的监听事件方法
         return super.onTouchEvent(event);
     }
 
+    /**
+     * 方法：监听键盘按键按下
+     * @param keyCode 键盘按键的编码
+     * @param event 按键事件
+     * @return boolean
+     */
     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         switch (keyCode) {
+            //语句块：按下回车键
             case KeyEvent.KEYCODE_ENTER:
+                //语句块：如果文本视图没有变化
                 if (mOnTextViewChangeListener != null) {
                     return false;
                 }
                 break;
+            //语句块：按下删除键
             case KeyEvent.KEYCODE_DEL:
+                //语句：获取删除文本的开始位置
                 mSelectionStartBeforeDelete = getSelectionStart();
                 break;
             default:
@@ -138,26 +167,45 @@ public class NoteEditText extends EditText {
         return super.onKeyDown(keyCode, event);
     }
 
+
+    /**
+     * 方法：监听按键抬起
+     * @param keyCode
+     * @param event
+     * @return
+     */
     @Override
     public boolean onKeyUp(int keyCode, KeyEvent event) {
         switch(keyCode) {
+            //语句块：抬起删除键
             case KeyEvent.KEYCODE_DEL:
+                //语句块：如果文本视图发生变化
                 if (mOnTextViewChangeListener != null) {
+                    //语句块：选择了删除的文字
                     if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
+                        //语句：监听文本的删除
                         mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
                         return true;
                     }
                 } else {
+                    //语句：报告文本视图变化监听器没有设置
                     Log.d(TAG, "OnTextViewChangeListener was not seted");
                 }
                 break;
+            //语句块：抬起回车键
             case KeyEvent.KEYCODE_ENTER:
+                //语句块：如果文本视图发生变化
                 if (mOnTextViewChangeListener != null) {
+                    //语句：获取选择区域的起点位置
                     int selectionStart = getSelectionStart();
+                    //语句：获取选择区域后面的文本信息
                     String text = getText().subSequence(selectionStart, length()).toString();
+                    //语句：实现文本换行的功能
                     setText(getText().subSequence(0, selectionStart));
+                    //语句：将选择区域内的文字移到下一行
                     mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);
                 } else {
+                    //语句：报告文本视图变化监听器没有设置
                     Log.d(TAG, "OnTextViewChangeListener was not seted");
                 }
                 break;
@@ -167,9 +215,17 @@ public class NoteEditText extends EditText {
         return super.onKeyUp(keyCode, event);
     }
 
+    /**
+     * 处理当前视图下的焦点改变事件
+     * @param focused 代表获得或失去焦点
+     * @param direction
+     * @param previouslyFocusedRect 上一个访问的焦点区域
+     */
     @Override
     protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
+        //语句块：如果文本视图发生变化
         if (mOnTextViewChangeListener != null) {
+            //语句块：当焦点存在或者当前文本不为空时，监听文本的变化
             if (!focused && TextUtils.isEmpty(getText())) {
                 mOnTextViewChangeListener.onTextChange(mIndex, false);
             } else {
@@ -179,9 +235,13 @@ public class NoteEditText extends EditText {
         super.onFocusChanged(focused, direction, previouslyFocusedRect);
     }
 
+    /**
+     * 方法：创建环境菜单
+     */
     @Override
     protected void onCreateContextMenu(ContextMenu menu) {
         if (getText() instanceof Spanned) {
+            //语句块：获取高亮元素
             int selStart = getSelectionStart();
             int selEnd = getSelectionEnd();
 
@@ -189,6 +249,7 @@ public class NoteEditText extends EditText {
             int max = Math.max(selStart, selEnd);
 
             final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
+            //语句块：针对不同的高亮元素，使用不同的操作进行处理
             if (urls.length == 1) {
                 int defaultResId = 0;
                 for(String schema: sSchemaActionResMap.keySet()) {
@@ -201,7 +262,7 @@ public class NoteEditText extends EditText {
                 if (defaultResId == 0) {
                     defaultResId = R.string.note_link_other;
                 }
-
+                //语句块：添加环境菜单的点击事件
                 menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
                         new OnMenuItemClickListener() {
                             public boolean onMenuItemClick(MenuItem item) {