diff --git a/Notes-master2/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java b/Notes-master2/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
index 96a9ff8..6138da3 100644
--- a/Notes-master2/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
+++ b/Notes-master2/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
@@ -71,10 +71,13 @@ import java.util.Map;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-
+/**
+ * 设置便签的活动
+ */
 public class NoteEditActivity extends Activity implements OnClickListener,
         NoteSettingChangedListener, OnTextViewChangeListener {
-    private class HeadViewHolder {
+    //HeadViewHolder修改为私有静态类
+    private static class HeadViewHolder {
         public TextView tvModified;
 
         public ImageView ivAlertIcon;
@@ -84,6 +87,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         public ImageView ibSetBgColor;
     }
 
+    //建立一个hashMap，用于存放电话、网站、邮箱
     private static final Map<Integer, Integer> sBgSelectorBtnsMap = new HashMap<Integer, Integer>();
     static {
         sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
@@ -149,6 +153,10 @@ public class NoteEditActivity extends Activity implements OnClickListener,
     private String mUserQuery;
     private Pattern mPattern;
 
+    /**
+     * 创建
+     * @param savedInstanceState 保存activity状态
+     */
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
diff --git a/Notes-master2/app/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java b/Notes-master2/app/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java
index 07c5f7e..9b3128f 100644
--- a/Notes-master2/app/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java
+++ b/Notes-master2/app/src/main/java/net/micode/notes/ui/NotesPreferenceActivity.java
@@ -18,6 +18,7 @@ package net.micode.notes.ui;
 
 import android.accounts.Account;
 import android.accounts.AccountManager;
+import android.annotation.SuppressLint;
 import android.app.ActionBar;
 import android.app.AlertDialog;
 import android.content.BroadcastReceiver;
@@ -48,6 +49,9 @@ import net.micode.notes.data.Notes.NoteColumns;
 import net.micode.notes.gtask.remote.GTaskSyncService;
 
 
+/**
+ * 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。
+ */
 public class NotesPreferenceActivity extends PreferenceActivity {
     public static final String PREFERENCE_NAME = "notes_preferences";
 
@@ -69,14 +73,20 @@ public class NotesPreferenceActivity extends PreferenceActivity {
 
     private boolean mHasAddedAccount;
 
+    /**
+     * 创建一个activity，在函数里要完成所有的正常静态设置
+     * @param icicle 存放当前状态
+     */
     @Override
     protected void onCreate(Bundle icicle) {
         super.onCreate(icicle);
 
         /* using the app icon for navigation */
-        getActionBar().setDisplayHomeAsUpEnabled(true);
+        getActionBar().setDisplayHomeAsUpEnabled(true);//在左上角增加一个返回图标
 
+        //增加xml来源
         addPreferencesFromResource(R.xml.preferences);
+        //同步账户关键码来初始化分组
         mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);
         mReceiver = new GTaskReceiver();
         IntentFilter filter = new IntentFilter();
@@ -84,10 +94,16 @@ public class NotesPreferenceActivity extends PreferenceActivity {
         registerReceiver(mReceiver, filter);
 
         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
+        //View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);改成了注释形式
+        @SuppressLint("InflateParams") View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);
+        //在listview组件上方添加其他组件
         getListView().addHeaderView(header, null, true);
     }
 
+    /**
+     * activity交互功能的实现，用于接受用户的输入
+     */
     @Override
     protected void onResume() {
         super.onResume();
@@ -116,6 +132,9 @@ public class NotesPreferenceActivity extends PreferenceActivity {
         refreshUI();
     }
 
+    /**
+     * 销毁一个activity
+     */
     @Override
     protected void onDestroy() {
         if (mReceiver != null) {
@@ -124,6 +143,9 @@ public class NotesPreferenceActivity extends PreferenceActivity {
         super.onDestroy();
     }
 
+    /**
+     * 重新设置账户信息
+     */
     private void loadAccountPreference() {
         mAccountCategory.removeAll();
 
@@ -154,6 +176,9 @@ public class NotesPreferenceActivity extends PreferenceActivity {
         mAccountCategory.addPreference(accountPref);
     }
 
+    /**
+     * 设置按键的状态和最后同步的时间
+     */
     private void loadSyncButton() {
         Button syncButton = (Button) findViewById(R.id.preference_sync_button);
         TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
@@ -193,11 +218,17 @@ public class NotesPreferenceActivity extends PreferenceActivity {
         }
     }
 
+    /**
+     * 刷新标签界面，实时更新展示
+     */
     private void refreshUI() {
         loadAccountPreference();
         loadSyncButton();
     }
 
+    /**
+     * 显示用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);
 
@@ -254,6 +285,9 @@ public class NotesPreferenceActivity extends PreferenceActivity {
         });
     }
 
+    /**
+     * 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);
 
@@ -283,6 +317,10 @@ public class NotesPreferenceActivity extends PreferenceActivity {
         dialogBuilder.show();
     }
 
+    /**
+     *  获取谷歌账户
+     * @return 返回谷歌用户
+     */
     private Account[] getGoogleAccounts() {
         AccountManager accountManager = AccountManager.get(this);
         return accountManager.getAccountsByType("com.google");